diff --git a/os/hal/boards/WVSHARE_BLE400/board.h b/os/hal/boards/WVSHARE_BLE400/board.h index 0a93c20e..57578b5d 100644 --- a/os/hal/boards/WVSHARE_BLE400/board.h +++ b/os/hal/boards/WVSHARE_BLE400/board.h @@ -34,11 +34,12 @@ #define LED4 22 #define UART_TX 9 #define UART_RX 11 - #define SPI_SCK 25 #define SPI_MOSI 24 #define SPI_MISO 23 #define SPI_SS 30 +#define I2C_SCL 1 +#define I2C_SDA 0 #if !defined(_FROM_ASM_) #ifdef __cplusplus diff --git a/os/hal/ports/NRF51/NRF51822/i2c_lld.c b/os/hal/ports/NRF51/NRF51822/i2c_lld.c new file mode 100644 index 00000000..611a0048 --- /dev/null +++ b/os/hal/ports/NRF51/NRF51822/i2c_lld.c @@ -0,0 +1,446 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file NRF51822/i2c_lld.c + * @brief NRF51822 I2C subsystem low level driver source. + * + * @addtogroup I2C + * @{ + */ + +#include "osal.h" +#include "hal.h" +#include "nrf51_delay.h" + +#if HAL_USE_I2C || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/* These macros are needed to see if the slave is stuck and we as master send dummy clock cycles to end its wait */ +#define I2C_HIGH(p) do { NRF_GPIO->OUTSET = (1UL << (p)); } while(0) /*!< Pulls I2C line high */ +#define I2C_LOW(p) do { NRF_GPIO->OUTCLR = (1UL << (p)); } while(0) /*!< Pulls I2C line low */ +#define I2C_INPUT(p) do { NRF_GPIO->DIRCLR = (1UL << (p)); } while(0) /*!< Configures I2C pin as input */ +#define I2C_OUTPUT(p) do { NRF_GPIO->DIRSET = (1UL << (p)); } while(0) /*!< Configures I2C pin as output */ + +#define I2C_PIN_CNF \ + ((GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) \ + | (GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) \ + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) \ + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) \ + | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos)) + +#define I2C_PIN_CNF_CLR \ + ((GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) \ + | (GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) \ + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) \ + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) \ + | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos)) + +#if NRF51_I2C_USE_I2C0 +#define I2C_IRQ_NUM SPI0_TWI0_IRQn +#define I2C_IRQ_PRI NRF51_I2C_I2C0_IRQ_PRIORITY +#elif NRF51_I2C_USE_I2C1 +#define I2C_IRQ_NUM SPI1_TWI1_IRQn +#define I2C_IRQ_PRI NRF51_I2C_I2C1_IRQ_PRIORITY +#endif + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/** + * @brief I2C0 driver identifier. + */ +#if NRF51_I2C_USE_I2C0 || defined(__DOXYGEN__) +I2CDriver I2CD1; +#endif + +/** + * @brief I2C1 driver identifier. + */ +#if NRF51_I2C_USE_I2C1 || defined(__DOXYGEN__) +I2CDriver I2CD2; +#endif + +uint8_t tx_resume_count; +uint8_t rx_resume_count; +uint8_t stop_count; + +/*===========================================================================*/ +/* Driver local variables and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +/** + * @brief Function for detecting stuck slaves (SDA = 0 and SCL = 1) and tries to clear the bus. + * + * @return + * @retval false Bus is stuck. + * @retval true Bus is clear. + */ +static void i2c_clear_bus(I2CDriver *i2cp) +{ + const I2CConfig *cfg = i2cp->config; + int i; + + NRF_GPIO->PIN_CNF[cfg->scl_pad] = I2C_PIN_CNF; + NRF_GPIO->PIN_CNF[cfg->sda_pad] = I2C_PIN_CNF; + + I2C_HIGH(cfg->sda_pad); + I2C_HIGH(cfg->scl_pad); + + NRF_GPIO->PIN_CNF[cfg->scl_pad] = I2C_PIN_CNF_CLR; + NRF_GPIO->PIN_CNF[cfg->sda_pad] = I2C_PIN_CNF_CLR; + + nrf_delay_us(4); + + for(i = 0; i < 9; i++) { + if (palReadPad(IOPORT1, cfg->sda_pad)) { + if(i > 0) + break; + else + return; + } + + I2C_LOW(cfg->scl_pad); + nrf_delay_us(4); + I2C_HIGH(cfg->scl_pad); + nrf_delay_us(4); + } + + I2C_LOW(cfg->sda_pad); + nrf_delay_us(4); + I2C_HIGH(cfg->sda_pad); +} + +static inline void i2c_setup_shortcut(I2CDriver *i2cp) +{ + uint32_t rxbytes = i2cp->rxbytes; + uint32_t txbytes = i2cp->txbytes; + + osalDbgAssert(rxbytes + txbytes, "transfer must be greater than zero"); + + if (txbytes > 1 || (!txbytes && rxbytes > 1)) + i2cp->i2c->SHORTS = TWI_SHORTS_BB_SUSPEND_Enabled << TWI_SHORTS_BB_SUSPEND_Pos; + else if (((txbytes == 1) && !rxbytes) || ((rxbytes == 1) && !txbytes)) + i2cp->i2c->SHORTS = TWI_SHORTS_BB_STOP_Enabled << TWI_SHORTS_BB_STOP_Pos; + else + i2cp->i2c->SHORTS = 0; +} + +#if defined(__GNUC__) +__attribute__((noinline)) +#endif +/** + * @brief Common IRQ handler. + * @note Tries hard to clear all the pending interrupt sources, we don't + * want to go through the whole ISR and have another interrupt soon + * after. + * + * @param[in] i2cp pointer to an I2CDriver + */ +static void serve_interrupt(I2CDriver *i2cp) { + + NRF_TWI_Type *i2c = i2cp->i2c; + + if(i2c->EVENTS_TXDSENT) { + + i2c->EVENTS_TXDSENT = 0; + + if(--i2cp->txbytes) { + + i2c->TXD = *i2cp->txptr++; + i2c_setup_shortcut(i2cp); + i2c->TASKS_RESUME = 1; + tx_resume_count++; + } + else if (i2cp->rxbytes) { + + i2c_setup_shortcut(i2cp); + i2c->TASKS_STARTRX = 1; + } + } + if(i2c->EVENTS_RXDREADY) { + + i2c->EVENTS_RXDREADY = 0; + *i2cp->rxptr++ = i2c->RXD; + + if(--i2cp->rxbytes) { + i2c_setup_shortcut(i2cp); + i2c->TASKS_RESUME = 1; + rx_resume_count++; + } + } + if(i2c->EVENTS_ERROR) { + + uint32_t err = i2c->ERRORSRC; + i2c->EVENTS_ERROR = 0; + + if (err & TWI_ERRORSRC_OVERRUN_Msk) + i2cp->errors |= I2C_OVERRUN; + if (err & (TWI_ERRORSRC_ANACK_Msk | TWI_ERRORSRC_DNACK_Msk)) + i2cp->errors |= I2C_ACK_FAILURE; + + i2c->TASKS_STOP = 1; + _i2c_wakeup_error_isr(i2cp); + } else if(i2c->EVENTS_STOPPED) { + + stop_count++; + i2c->EVENTS_STOPPED = 0; + _i2c_wakeup_isr(i2cp); + } +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +#if NRF51_I2C_USE_I2C0 || defined(__DOXYGEN__) + +OSAL_IRQ_HANDLER(Vector4C) { + + OSAL_IRQ_PROLOGUE(); + serve_interrupt(&I2CD1); + OSAL_IRQ_EPILOGUE(); +} + +#endif + +#if NRF51_I2C_USE_I2C1 || defined(__DOXYGEN__) + +OSAL_IRQ_HANDLER(Vector50) { + + OSAL_IRQ_PROLOGUE(); + serve_interrupt(&I2CD2); + OSAL_IRQ_EPILOGUE(); +} + +#endif + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Low level I2C driver initialization. + * + * @notapi + */ +void i2c_lld_init(void) { + +#if NRF51_I2C_USE_I2C0 + i2cObjectInit(&I2CD1); + I2CD1.thread = NULL; + I2CD1.i2c = NRF_TWI0; +#endif + +#if NRF51_I2C_USE_I2C1 + i2cObjectInit(&I2CD2); + I2CD2.thread = NULL; + I2CD2.i2c = NRF_TWI1; +#endif + +} + +/** + * @brief Configures and activates the I2C peripheral. + * + * @param[in] i2cp pointer to the @p I2CDriver object + * + * @notapi + */ +void i2c_lld_start(I2CDriver *i2cp) { + + NRF_TWI_Type *i2c = i2cp->i2c; + const I2CConfig *cfg = i2cp->config; + + if (i2cp->state != I2C_STOP) + return; + + i2c_clear_bus(i2cp); + + NRF_GPIO->PIN_CNF[cfg->scl_pad] = I2C_PIN_CNF; + NRF_GPIO->PIN_CNF[cfg->sda_pad] = I2C_PIN_CNF; + + i2c->EVENTS_RXDREADY = 0; + i2c->EVENTS_TXDSENT = 0; + i2c->PSELSCL = cfg->scl_pad; + i2c->PSELSDA = cfg->sda_pad; + + switch (cfg->clock) { + case 100000: + i2c->FREQUENCY = TWI_FREQUENCY_FREQUENCY_K100 << TWI_FREQUENCY_FREQUENCY_Pos; + break; + case 250000: + i2c->FREQUENCY = TWI_FREQUENCY_FREQUENCY_K250 << TWI_FREQUENCY_FREQUENCY_Pos; + break; + case 400000: + i2c->FREQUENCY = TWI_FREQUENCY_FREQUENCY_K400 << TWI_FREQUENCY_FREQUENCY_Pos; + break; + default: + osalDbgAssert(0, "invalid I2C frequency"); + break; + }; + + nvicEnableVector(I2C_IRQ_NUM, I2C_IRQ_PRI); + + i2c->INTENSET = TWI_INTENSET_TXDSENT_Msk | TWI_INTENSET_STOPPED_Msk | + TWI_INTENSET_ERROR_Msk | TWI_INTENSET_RXDREADY_Msk; + + i2c->ENABLE = TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos; +} + +/** + * @brief Deactivates the I2C peripheral. + * + * @param[in] i2cp pointer to the @p I2CDriver object + * + * @notapi + */ +void i2c_lld_stop(I2CDriver *i2cp) { + + NRF_TWI_Type *i2c = i2cp->i2c; + const I2CConfig *cfg = i2cp->config; + + if (i2cp->state != I2C_STOP) { + + i2c->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos; + + i2c->INTENCLR = TWI_INTENSET_TXDSENT_Msk | TWI_INTENSET_STOPPED_Msk | + TWI_INTENSET_ERROR_Msk | TWI_INTENSET_RXDREADY_Msk; + + nvicDisableVector(I2C_IRQ_NUM); + + NRF_GPIO->PIN_CNF[cfg->scl_pad] = I2C_PIN_CNF_CLR; + NRF_GPIO->PIN_CNF[cfg->sda_pad] = I2C_PIN_CNF_CLR; + } +} + +static inline msg_t _i2c_txrx_timeout(I2CDriver *i2cp, i2caddr_t addr, + const uint8_t *txbuf, size_t txbytes, + uint8_t *rxbuf, size_t rxbytes, + systime_t timeout) { + + NRF_TWI_Type *i2c = i2cp->i2c; + + (void)timeout; + msg_t msg; + + i2cp->errors = I2C_NO_ERROR; + i2cp->addr = addr; + + i2cp->txptr = txbuf; + i2cp->txbytes = txbytes; + + i2cp->rxptr = rxbuf; + i2cp->rxbytes = rxbytes; + + i2c->ADDRESS = addr; + + tx_resume_count = 0; + rx_resume_count = 0; + stop_count = 0; + + if (i2cp->txbytes) { + + i2c->TXD = *i2cp->txptr++; + i2c_setup_shortcut(i2cp); + i2c->TASKS_STARTTX = 1; + } else if (i2cp->rxbytes) { + + i2c_setup_shortcut(i2cp); + i2c->TASKS_STARTRX = 1; + } else { + + osalDbgAssert(0, "no bytes to transfer"); + } + + msg = osalThreadSuspendTimeoutS(&i2cp->thread, timeout); + + if (msg == MSG_TIMEOUT) + i2c->TASKS_STOP = 1; + + return msg; +} + +/** + * @brief Receives data via the I2C bus as master. + * + * @param[in] i2cp pointer to the @p I2CDriver object + * @param[in] addr slave device address + * @param[out] rxbuf pointer to the receive buffer + * @param[in] rxbytes number of bytes to be received + * @param[in] timeout the number of ticks before the operation timeouts, + * the following special values are allowed: + * - @a TIME_INFINITE no timeout. + * . + * @return The operation status. + * @retval MSG_OK if the function succeeded. + * @retval MSG_RESET if one or more I2C errors occurred, the errors can + * be retrieved using @p i2cGetErrors(). + * @retval MSG_TIMEOUT if a timeout occurred before operation end. After a + * timeout the driver must be stopped and restarted + * because the bus is in an uncertain state. + * + * @notapi + */ +msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr, + uint8_t *rxbuf, size_t rxbytes, + systime_t timeout) { + + return _i2c_txrx_timeout(i2cp, addr, NULL, 0, rxbuf, rxbytes, timeout); +} + +/** + * @brief Transmits data via the I2C bus as master. + * + * @param[in] i2cp pointer to the @p I2CDriver object + * @param[in] addr slave device address + * @param[in] txbuf pointer to the transmit buffer + * @param[in] txbytes number of bytes to be transmitted + * @param[out] rxbuf pointer to the receive buffer + * @param[in] rxbytes number of bytes to be received + * @param[in] timeout the number of ticks before the operation timeouts, + * the following special values are allowed: + * - @a TIME_INFINITE no timeout. + * . + * @return The operation status. + * @retval MSG_OK if the function succeeded. + * @retval MSG_RESET if one or more I2C errors occurred, the errors can + * be retrieved using @p i2cGetErrors(). + * @retval MSG_TIMEOUT if a timeout occurred before operation end. After a + * timeout the driver must be stopped and restarted + * because the bus is in an uncertain state. + * + * @notapi + */ +msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr, + const uint8_t *txbuf, size_t txbytes, + uint8_t *rxbuf, size_t rxbytes, + systime_t timeout) { + + return _i2c_txrx_timeout(i2cp, addr, txbuf, txbytes, rxbuf, rxbytes, timeout); +} + +#endif /* HAL_USE_I2C */ + +/** @} */ diff --git a/os/hal/ports/NRF51/NRF51822/i2c_lld.h b/os/hal/ports/NRF51/NRF51822/i2c_lld.h new file mode 100644 index 00000000..be3ea5ba --- /dev/null +++ b/os/hal/ports/NRF51/NRF51822/i2c_lld.h @@ -0,0 +1,222 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file NRF51822/i2c_lld.h + * @brief NRF51822 I2C subsystem low level driver header. + * + * @addtogroup I2C + * @{ + */ + +#ifndef _I2C_LLD_H_ +#define _I2C_LLD_H_ + +#if HAL_USE_I2C || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Driver constants. */ +/*===========================================================================*/ + +#define STATE_STOP 0x00 +#define STATE_SEND 0x01 +#define STATE_RECV 0x02 +#define STATE_DUMMY 0x03 + +/*===========================================================================*/ +/* Driver pre-compile time settings. */ +/*===========================================================================*/ + +/** + * @name Configuration options + * @{ + */ +/** + * @brief I2C0 driver enable switch. + * @details If set to @p TRUE the support for I2C0 is included. + * @note The default is @p FALSE. + */ +#if !defined(NRF51_I2C_USE_I2C0) || defined(__DOXYGEN__) +#define NRF51_I2C_USE_I2C0 FALSE +#endif + +/** + * @brief I2C1 driver enable switch. + * @details If set to @p TRUE the support for I2C1 is included. + * @note The default is @p FALSE. + */ +#if !defined(NRF51_I2C_USE_I2C1) || defined(__DOXYGEN__) +#define NRF51_I2C_USE_I2C1 FALSE +#endif + +/** + * @brief I2C0 interrupt priority level setting. + */ +#if !defined(NRF51_I2C_I2C0_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define NRF51_I2C_I2C0_IRQ_PRIORITY 10 +#endif + +/** + * @brief I2C1 interrupt priority level setting. + */ +#if !defined(NRF51_I2C_I2C1_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define NRF51_I2C_I2C1_IRQ_PRIORITY 10 +#endif +/** @} */ + +/*===========================================================================*/ +/* Derived constants and error checks. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver data structures and types. */ +/*===========================================================================*/ + +/* @brief Type representing I2C address. */ +typedef uint8_t i2caddr_t; + +/* @brief Type of I2C Driver condition flags. */ +typedef uint32_t i2cflags_t; + +/* @brief Type used to control the ISR state machine. */ +typedef uint8_t intstate_t; + +/** + * @brief Driver configuration structure. + * @note Implementations may extend this structure to contain more, + * architecture dependent, fields. + */ + +/** + * @brief Driver configuration structure. + */ +typedef struct { + + /* @brief Clock to be used for the I2C bus. */ + uint32_t clock; + /* @brief Pad number for SCL */ + uint8_t scl_pad; + /* @brief Pad number for SDA */ + uint8_t sda_pad; + +} I2CConfig; + +/** + * @brief Type of a structure representing an I2C driver. + */ +typedef struct I2CDriver I2CDriver; + +/** + * @brief Structure representing an I2C driver. + */ +struct I2CDriver { + /** + * @brief Driver state. + */ + i2cstate_t state; + /** + * @brief Current configuration data. + */ + const I2CConfig *config; + /** + * @brief Error flags. + */ + i2cflags_t errors; +#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__) +#if CH_CFG_USE_MUTEXES || defined(__DOXYGEN__) + /** + * @brief Mutex protecting the bus. + */ + mutex_t mutex; +#elif CH_CFG_USE_SEMAPHORES + semaphore_t semaphore; +#endif +#endif /* I2C_USE_MUTUAL_EXCLUSION */ +#if defined(I2C_DRIVER_EXT_FIELDS) + I2C_DRIVER_EXT_FIELDS +#endif + /* @brief Thread waiting for I/O completion. */ + thread_reference_t thread; + /* @brief Current slave address without R/W bit. */ + i2caddr_t addr; + + /* End of the mandatory fields.*/ + + /* @brief Pointer to the buffer with data to send. */ + const uint8_t *txptr; + /* @brief Number of bytes of data to send. */ + size_t txbytes; + /* @brief Pointer to the buffer to put received data. */ + uint8_t *rxptr; + /* @brief Number of bytes of data to receive. */ + size_t rxbytes; + /* @brief Tracks current ISR state. */ + intstate_t intstate; + /* @brief Low-level register access. */ + NRF_TWI_Type *i2c; +}; + +/*===========================================================================*/ +/* Driver macros. */ +/*===========================================================================*/ + +/** + * @brief Get errors from I2C driver. + * + * @param[in] i2cp pointer to the @p I2CDriver object + * + * @notapi + */ +#define i2c_lld_get_errors(i2cp) ((i2cp)->errors) + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +#if !defined(__DOXYGEN__) + +#if NRF51_I2C_USE_I2C0 +extern I2CDriver I2CD1; +#endif + +#if NRF51_I2C_USE_I2C1 +extern I2CDriver I2CD2; +#endif + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + void i2c_lld_init(void); + void i2c_lld_start(I2CDriver *i2cp); + void i2c_lld_stop(I2CDriver *i2cp); + msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr, + const uint8_t *txbuf, size_t txbytes, + uint8_t *rxbuf, size_t rxbytes, + systime_t timeout); + msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr, + uint8_t *rxbuf, size_t rxbytes, + systime_t timeout); +#ifdef __cplusplus +} +#endif + +#endif /* HAL_USE_I2C */ + +#endif /* _I2C_LLD_H_ */ + +/** @} */ diff --git a/os/hal/ports/NRF51/NRF51822/nrf51_delay.h b/os/hal/ports/NRF51/NRF51822/nrf51_delay.h new file mode 100644 index 00000000..2a672db4 --- /dev/null +++ b/os/hal/ports/NRF51/NRF51822/nrf51_delay.h @@ -0,0 +1,51 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file NRF51822/nrf51_delay.h + * @brief NRF51822 Delay routines + * + * @{ + */ + +#ifndef _NRF_DELAY_H +#define _NRF_DELAY_H + +inline static void nrf_delay_us(uint32_t volatile number_of_us) __attribute__((always_inline)); +inline static void nrf_delay_us(uint32_t volatile number_of_us) +{ +register uint32_t delay asm ("r0") = number_of_us; +__asm volatile ( +".syntax unified\n" + "1:\n" + " SUBS %0, %0, #1\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " NOP\n" + " BNE 1b\n" + ".syntax divided\n" + : "+r" (delay)); +} +#endif //__NRF_DELAY_H diff --git a/os/hal/ports/NRF51/NRF51822/platform.mk b/os/hal/ports/NRF51/NRF51822/platform.mk index 71dd87d6..09bb083c 100644 --- a/os/hal/ports/NRF51/NRF51822/platform.mk +++ b/os/hal/ports/NRF51/NRF51822/platform.mk @@ -6,7 +6,8 @@ PLATFORMSRC = ${CHIBIOS}/os/hal/ports/common/ARMCMx/nvic.c \ ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/st_lld.c \ ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/spi_lld.c \ ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/ext_lld_isr.c \ - ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/ext_lld.c + ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/ext_lld.c \ + ${CHIBIOS_CONTRIB}/os/hal/ports/NRF51/NRF51822/i2c_lld.c # Required include directories PLATFORMINC = ${CHIBIOS}/os/hal/ports/common/ARMCMx \ diff --git a/testhal/NRF51/NRF51822/I2C/Makefile b/testhal/NRF51/NRF51822/I2C/Makefile new file mode 100644 index 00000000..76152303 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/Makefile @@ -0,0 +1,211 @@ +############################################################################## +# Build global options +# NOTE: Can be overridden externally. +# + +# Compiler options here. +ifeq ($(USE_OPT),) + USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16 +endif + +# C specific options here (added to USE_OPT). +ifeq ($(USE_COPT),) + USE_COPT = +endif + +# C++ specific options here (added to USE_OPT). +ifeq ($(USE_CPPOPT),) + USE_CPPOPT = -fno-rtti +endif + +# Enable this if you want the linker to remove unused code and data +ifeq ($(USE_LINK_GC),) + USE_LINK_GC = yes +endif + +# Linker extra options here. +ifeq ($(USE_LDOPT),) + USE_LDOPT = +endif + +# Enable this if you want link time optimizations (LTO) +ifeq ($(USE_LTO),) + USE_LTO = yes +endif + +# If enabled, this option allows to compile the application in THUMB mode. +ifeq ($(USE_THUMB),) + USE_THUMB = yes +endif + +# Enable this if you want to see the full log while compiling. +ifeq ($(USE_VERBOSE_COMPILE),) + USE_VERBOSE_COMPILE = no +endif + +# +# Build global options +############################################################################## + +############################################################################## +# Architecture or project specific options +# + +# Stack size to be allocated to the Cortex-M process stack. This stack is +# the stack used by the main() thread. +ifeq ($(USE_PROCESS_STACKSIZE),) + USE_PROCESS_STACKSIZE = 0x200 +endif + +# Stack size to the allocated to the Cortex-M main/exceptions stack. This +# stack is used for processing interrupts and exceptions. +ifeq ($(USE_EXCEPTIONS_STACKSIZE),) + USE_EXCEPTIONS_STACKSIZE = 0x400 +endif + +# Enables the use of FPU on Cortex-M4 (no, softfp, hard). +ifeq ($(USE_FPU),) + USE_FPU = no +endif + +# +# Architecture or project specific options +############################################################################## + +############################################################################## +# Project, sources and paths +# + +# Define project name here +PROJECT = ch + +# Imported source files and paths +CHIBIOS = ../../../../../ChibiOS-RT +CHIBIOS_CONTRIB = $(CHIBIOS)/../ChibiOS-Contrib +# Startup files. +include $(CHIBIOS_CONTRIB)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_nrf51.mk +# HAL-OSAL files (optional). +include $(CHIBIOS)/os/hal/hal.mk +include $(CHIBIOS_CONTRIB)/os/hal/ports/NRF51/NRF51822/platform.mk +include $(CHIBIOS_CONTRIB)/os/hal/boards/WVSHARE_BLE400/board.mk +include $(CHIBIOS)/os/hal/osal/rt/osal.mk +# RTOS files (optional). +include $(CHIBIOS)/os/rt/rt.mk +include $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v6m.mk +# Other files (optional). +include $(CHIBIOS)/test/rt/test.mk + +# Define linker script file here +LDSCRIPT= $(STARTUPLD)/NRF51822.ld + +# C sources that can be compiled in ARM or THUMB mode depending on the global +# setting. +CSRC = $(STARTUPSRC) \ + $(KERNSRC) \ + $(PORTSRC) \ + $(OSALSRC) \ + $(HALSRC) \ + $(PLATFORMSRC) \ + $(BOARDSRC) \ + $(TESTSRC) \ + main.c + +# C++ sources that can be compiled in ARM or THUMB mode depending on the global +# setting. +CPPSRC = + +# C sources to be compiled in ARM mode regardless of the global setting. +# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler +# option that results in lower performance and larger code size. +ACSRC = + +# C++ sources to be compiled in ARM mode regardless of the global setting. +# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler +# option that results in lower performance and larger code size. +ACPPSRC = + +# C sources to be compiled in THUMB mode regardless of the global setting. +# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler +# option that results in lower performance and larger code size. +TCSRC = + +# C sources to be compiled in THUMB mode regardless of the global setting. +# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler +# option that results in lower performance and larger code size. +TCPPSRC = + +# List ASM source files here +ASMSRC = $(STARTUPASM) $(PORTASM) $(OSALASM) + +INCDIR = $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \ + $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \ + $(CHIBIOS)/os/various + +# +# Project, sources and paths +############################################################################## + +############################################################################## +# Compiler settings +# + +MCU = cortex-m0 + +TRGT = arm-none-eabi- +CC = $(TRGT)gcc +CPPC = $(TRGT)g++ +# Enable loading with g++ only if you need C++ runtime support. +# NOTE: You can use C++ even without C++ support if you are careful. C++ +# runtime support makes code size explode. +LD = $(TRGT)gcc +#LD = $(TRGT)g++ +CP = $(TRGT)objcopy +AS = $(TRGT)gcc -x assembler-with-cpp +AR = $(TRGT)ar +OD = $(TRGT)objdump +SZ = $(TRGT)size +HEX = $(CP) -O ihex +BIN = $(CP) -O binary +SREC = $(CP) -O srec + +# ARM-specific options here +AOPT = + +# THUMB-specific options here +TOPT = -mthumb -DTHUMB + +# Define C warning options here +CWARN = -Wall -Wextra -Wstrict-prototypes + +# Define C++ warning options here +CPPWARN = -Wall -Wextra + +# +# Compiler settings +############################################################################## + +############################################################################## +# Start of user section +# + +# List all user C define here, like -D_DEBUG=1 +UDEFS = + +# Define ASM defines here +UADEFS = + +# List all user directories here +UINCDIR = + +# List the user directory to look for the libraries here +ULIBDIR = + +# List all user libraries here +ULIBS = + +# +# End of user defines +############################################################################## + +RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC +include $(RULESPATH)/rules.mk diff --git a/testhal/NRF51/NRF51822/I2C/chconf.h b/testhal/NRF51/NRF51822/I2C/chconf.h new file mode 100644 index 00000000..94662570 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/chconf.h @@ -0,0 +1,499 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file templates/chconf.h + * @brief Configuration file template. + * @details A copy of this file must be placed in each project directory, it + * contains the application specific kernel settings. + * + * @addtogroup config + * @details Kernel related settings and hooks. + * @{ + */ + +#ifndef _CHCONF_H_ +#define _CHCONF_H_ + +/*===========================================================================*/ +/** + * @name System timers settings + * @{ + */ +/*===========================================================================*/ + +/** + * @brief System time counter resolution. + * @note Allowed values are 16 or 32 bits. + */ +#define CH_CFG_ST_RESOLUTION 32 + +/** + * @brief System tick frequency. + * @details Frequency of the system timer that drives the system ticks. This + * setting also defines the system tick time unit. + */ +#define CH_CFG_ST_FREQUENCY 1000 + +/** + * @brief Time delta constant for the tick-less mode. + * @note If this value is zero then the system uses the classic + * periodic tick. This value represents the minimum number + * of ticks that is safe to specify in a timeout directive. + * The value one is not valid, timeouts are rounded up to + * this value. + */ +#define CH_CFG_ST_TIMEDELTA 0 + +/** @} */ + +/*===========================================================================*/ +/** + * @name Kernel parameters and options + * @{ + */ +/*===========================================================================*/ + +/** + * @brief Round robin interval. + * @details This constant is the number of system ticks allowed for the + * threads before preemption occurs. Setting this value to zero + * disables the preemption for threads with equal priority and the + * round robin becomes cooperative. Note that higher priority + * threads can still preempt, the kernel is always preemptive. + * @note Disabling the round robin preemption makes the kernel more compact + * and generally faster. + * @note The round robin preemption is not supported in tickless mode and + * must be set to zero in that case. + */ +#define CH_CFG_TIME_QUANTUM 20 + +/** + * @brief Managed RAM size. + * @details Size of the RAM area to be managed by the OS. If set to zero + * then the whole available RAM is used. The core memory is made + * available to the heap allocator and/or can be used directly through + * the simplified core memory allocator. + * + * @note In order to let the OS manage the whole RAM the linker script must + * provide the @p __heap_base__ and @p __heap_end__ symbols. + * @note Requires @p CH_CFG_USE_MEMCORE. + */ +#define CH_CFG_MEMCORE_SIZE 0 + +/** + * @brief Idle thread automatic spawn suppression. + * @details When this option is activated the function @p chSysInit() + * does not spawn the idle thread. The application @p main() + * function becomes the idle thread and must implement an + * infinite loop. + */ +#define CH_CFG_NO_IDLE_THREAD FALSE + +/** @} */ + +/*===========================================================================*/ +/** + * @name Performance options + * @{ + */ +/*===========================================================================*/ + +/** + * @brief OS optimization. + * @details If enabled then time efficient rather than space efficient code + * is used when two possible implementations exist. + * + * @note This is not related to the compiler optimization options. + * @note The default is @p TRUE. + */ +#define CH_CFG_OPTIMIZE_SPEED TRUE + +/** @} */ + +/*===========================================================================*/ +/** + * @name Subsystem options + * @{ + */ +/*===========================================================================*/ + +/** + * @brief Time Measurement APIs. + * @details If enabled then the time measurement APIs are included in + * the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_TM FALSE + +/** + * @brief Threads registry APIs. + * @details If enabled then the registry APIs are included in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_REGISTRY TRUE + +/** + * @brief Threads synchronization APIs. + * @details If enabled then the @p chThdWait() function is included in + * the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_WAITEXIT TRUE + +/** + * @brief Semaphores APIs. + * @details If enabled then the Semaphores APIs are included in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_SEMAPHORES TRUE + +/** + * @brief Semaphores queuing mode. + * @details If enabled then the threads are enqueued on semaphores by + * priority rather than in FIFO order. + * + * @note The default is @p FALSE. Enable this if you have special + * requirements. + * @note Requires @p CH_CFG_USE_SEMAPHORES. + */ +#define CH_CFG_USE_SEMAPHORES_PRIORITY FALSE + +/** + * @brief Mutexes APIs. + * @details If enabled then the mutexes APIs are included in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_MUTEXES TRUE + +/** + * @brief Enables recursive behavior on mutexes. + * @note Recursive mutexes are heavier and have an increased + * memory footprint. + * + * @note The default is @p FALSE. + * @note Requires @p CH_CFG_USE_MUTEXES. + */ +#define CH_CFG_USE_MUTEXES_RECURSIVE FALSE + +/** + * @brief Conditional Variables APIs. + * @details If enabled then the conditional variables APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_MUTEXES. + */ +#define CH_CFG_USE_CONDVARS TRUE + +/** + * @brief Conditional Variables APIs with timeout. + * @details If enabled then the conditional variables APIs with timeout + * specification are included in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_CONDVARS. + */ +#define CH_CFG_USE_CONDVARS_TIMEOUT TRUE + +/** + * @brief Events Flags APIs. + * @details If enabled then the event flags APIs are included in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_EVENTS TRUE + +/** + * @brief Events Flags APIs with timeout. + * @details If enabled then the events APIs with timeout specification + * are included in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_EVENTS. + */ +#define CH_CFG_USE_EVENTS_TIMEOUT TRUE + +/** + * @brief Synchronous Messages APIs. + * @details If enabled then the synchronous messages APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_MESSAGES FALSE + +/** + * @brief Synchronous Messages queuing mode. + * @details If enabled then messages are served by priority rather than in + * FIFO order. + * + * @note The default is @p FALSE. Enable this if you have special + * requirements. + * @note Requires @p CH_CFG_USE_MESSAGES. + */ +#define CH_CFG_USE_MESSAGES_PRIORITY FALSE + +/** + * @brief Mailboxes APIs. + * @details If enabled then the asynchronous messages (mailboxes) APIs are + * included in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_SEMAPHORES. + */ +#define CH_CFG_USE_MAILBOXES FALSE + +/** + * @brief I/O Queues APIs. + * @details If enabled then the I/O queues APIs are included in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_QUEUES FALSE + +/** + * @brief Core Memory Manager APIs. + * @details If enabled then the core memory manager APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_MEMCORE FALSE + +/** + * @brief Heap Allocator APIs. + * @details If enabled then the memory heap allocator APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or + * @p CH_CFG_USE_SEMAPHORES. + * @note Mutexes are recommended. + */ +#define CH_CFG_USE_HEAP FALSE + +/** + * @brief Memory Pools Allocator APIs. + * @details If enabled then the memory pools allocator APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + */ +#define CH_CFG_USE_MEMPOOLS FALSE + +/** + * @brief Dynamic Threads APIs. + * @details If enabled then the dynamic threads creation APIs are included + * in the kernel. + * + * @note The default is @p TRUE. + * @note Requires @p CH_CFG_USE_WAITEXIT. + * @note Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS. + */ +#define CH_CFG_USE_DYNAMIC FALSE + +/** @} */ + +/*===========================================================================*/ +/** + * @name Debug options + * @{ + */ +/*===========================================================================*/ + +/** + * @brief Debug option, kernel statistics. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_STATISTICS FALSE + +/** + * @brief Debug option, system state check. + * @details If enabled the correct call protocol for system APIs is checked + * at runtime. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_SYSTEM_STATE_CHECK TRUE + +/** + * @brief Debug option, parameters checks. + * @details If enabled then the checks on the API functions input + * parameters are activated. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_ENABLE_CHECKS TRUE + +/** + * @brief Debug option, consistency checks. + * @details If enabled then all the assertions in the kernel code are + * activated. This includes consistency checks inside the kernel, + * runtime anomalies and port-defined checks. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_ENABLE_ASSERTS TRUE + +/** + * @brief Debug option, trace buffer. + * @details If enabled then the context switch circular trace buffer is + * activated. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_ENABLE_TRACE TRUE + +/** + * @brief Debug option, stack checks. + * @details If enabled then a runtime stack check is performed. + * + * @note The default is @p FALSE. + * @note The stack check is performed in a architecture/port dependent way. + * It may not be implemented or some ports. + * @note The default failure mode is to halt the system with the global + * @p panic_msg variable set to @p NULL. + */ +#define CH_DBG_ENABLE_STACK_CHECK TRUE + +/** + * @brief Debug option, stacks initialization. + * @details If enabled then the threads working area is filled with a byte + * value when a thread is created. This can be useful for the + * runtime measurement of the used stack. + * + * @note The default is @p FALSE. + */ +#define CH_DBG_FILL_THREADS TRUE + +/** + * @brief Debug option, threads profiling. + * @details If enabled then a field is added to the @p thread_t structure that + * counts the system ticks occurred while executing the thread. + * + * @note The default is @p FALSE. + * @note This debug option is not currently compatible with the + * tickless mode. + */ +#define CH_DBG_THREADS_PROFILING FALSE + +/** @} */ + +/*===========================================================================*/ +/** + * @name Kernel hooks + * @{ + */ +/*===========================================================================*/ + +/** + * @brief Threads descriptor structure extension. + * @details User fields added to the end of the @p thread_t structure. + */ +#define CH_CFG_THREAD_EXTRA_FIELDS \ + /* Add threads custom fields here.*/ + +/** + * @brief Threads initialization hook. + * @details User initialization code added to the @p chThdInit() API. + * + * @note It is invoked from within @p chThdInit() and implicitly from all + * the threads creation APIs. + */ +#define CH_CFG_THREAD_INIT_HOOK(tp) { \ + /* Add threads initialization code here.*/ \ +} + +/** + * @brief Threads finalization hook. + * @details User finalization code added to the @p chThdExit() API. + * + * @note It is inserted into lock zone. + * @note It is also invoked when the threads simply return in order to + * terminate. + */ +#define CH_CFG_THREAD_EXIT_HOOK(tp) { \ + /* Add threads finalization code here.*/ \ +} + +/** + * @brief Context switch hook. + * @details This hook is invoked just before switching between threads. + */ +#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) { \ + /* Context switch code here.*/ \ +} + +/** + * @brief Idle thread enter hook. + * @note This hook is invoked within a critical zone, no OS functions + * should be invoked from here. + * @note This macro can be used to activate a power saving mode. + */ +#define CH_CFG_IDLE_ENTER_HOOK() { \ +} + +/** + * @brief Idle thread leave hook. + * @note This hook is invoked within a critical zone, no OS functions + * should be invoked from here. + * @note This macro can be used to deactivate a power saving mode. + */ +#define CH_CFG_IDLE_LEAVE_HOOK() { \ +} + +/** + * @brief Idle Loop hook. + * @details This hook is continuously invoked by the idle thread loop. + */ +#define CH_CFG_IDLE_LOOP_HOOK() { \ + /* Idle loop code here.*/ \ +} + +/** + * @brief System tick event hook. + * @details This hook is invoked in the system tick handler immediately + * after processing the virtual timers queue. + */ +#define CH_CFG_SYSTEM_TICK_HOOK() { \ + /* System tick event code here.*/ \ +} + +/** + * @brief System halt hook. + * @details This hook is invoked in case to a system halting error before + * the system is halted. + */ +#define CH_CFG_SYSTEM_HALT_HOOK(reason) { \ + /* System halt code here.*/ \ +} + +/** @} */ + +/*===========================================================================*/ +/* Port-specific settings (override port settings defaulted in chcore.h). */ +/*===========================================================================*/ + +#endif /* _CHCONF_H_ */ + +/** @} */ diff --git a/testhal/NRF51/NRF51822/I2C/halconf.h b/testhal/NRF51/NRF51822/I2C/halconf.h new file mode 100644 index 00000000..1c3036a5 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/halconf.h @@ -0,0 +1,327 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file templates/halconf.h + * @brief HAL configuration header. + * @details HAL configuration file, this file allows to enable or disable the + * various device drivers from your application. You may also use + * this file in order to override the device drivers default settings. + * + * @addtogroup HAL_CONF + * @{ + */ + +#ifndef _HALCONF_H_ +#define _HALCONF_H_ + +#include "mcuconf.h" + +/** + * @brief Enables the PAL subsystem. + */ +#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__) +#define HAL_USE_PAL TRUE +#endif + +/** + * @brief Enables the ADC subsystem. + */ +#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__) +#define HAL_USE_ADC FALSE +#endif + +/** + * @brief Enables the CAN subsystem. + */ +#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__) +#define HAL_USE_CAN FALSE +#endif + +/** + * @brief Enables the EXT subsystem. + */ +#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__) +#define HAL_USE_EXT FALSE +#endif + +/** + * @brief Enables the GPT subsystem. + */ +#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__) +#define HAL_USE_GPT FALSE +#endif + +/** + * @brief Enables the I2C subsystem. + */ +#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__) +#define HAL_USE_I2C TRUE +#endif + +/** + * @brief Enables the I2S subsystem. + */ +#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__) +#define HAL_USE_I2S FALSE +#endif + +/** + * @brief Enables the ICU subsystem. + */ +#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__) +#define HAL_USE_ICU FALSE +#endif + +/** + * @brief Enables the MAC subsystem. + */ +#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__) +#define HAL_USE_MAC FALSE +#endif + +/** + * @brief Enables the MMC_SPI subsystem. + */ +#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__) +#define HAL_USE_MMC_SPI FALSE +#endif + +/** + * @brief Enables the PWM subsystem. + */ +#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__) +#define HAL_USE_PWM FALSE +#endif + +/** + * @brief Enables the RTC subsystem. + */ +#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__) +#define HAL_USE_RTC FALSE +#endif + +/** + * @brief Enables the SDC subsystem. + */ +#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__) +#define HAL_USE_SDC FALSE +#endif + +/** + * @brief Enables the SERIAL subsystem. + */ +#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__) +#define HAL_USE_SERIAL FALSE +#endif + +/** + * @brief Enables the SERIAL over USB subsystem. + */ +#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__) +#define HAL_USE_SERIAL_USB FALSE +#endif + +/** + * @brief Enables the SPI subsystem. + */ +#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__) +#define HAL_USE_SPI FALSE +#endif + +/** + * @brief Enables the UART subsystem. + */ +#if !defined(HAL_USE_UART) || defined(__DOXYGEN__) +#define HAL_USE_UART FALSE +#endif + +/** + * @brief Enables the USB subsystem. + */ +#if !defined(HAL_USE_USB) || defined(__DOXYGEN__) +#define HAL_USE_USB FALSE +#endif + +/*===========================================================================*/ +/* ADC driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Enables synchronous APIs. + * @note Disabling this option saves both code and data space. + */ +#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__) +#define ADC_USE_WAIT TRUE +#endif + +/** + * @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs. + * @note Disabling this option saves both code and data space. + */ +#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) +#define ADC_USE_MUTUAL_EXCLUSION TRUE +#endif + +/*===========================================================================*/ +/* CAN driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Sleep mode related APIs inclusion switch. + */ +#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__) +#define CAN_USE_SLEEP_MODE TRUE +#endif + +/*===========================================================================*/ +/* I2C driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Enables the mutual exclusion APIs on the I2C bus. + */ +#if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) +#define I2C_USE_MUTUAL_EXCLUSION TRUE +#endif + +/*===========================================================================*/ +/* MAC driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Enables an event sources for incoming packets. + */ +#if !defined(MAC_USE_ZERO_COPY) || defined(__DOXYGEN__) +#define MAC_USE_ZERO_COPY FALSE +#endif + +/** + * @brief Enables an event sources for incoming packets. + */ +#if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__) +#define MAC_USE_EVENTS TRUE +#endif + +/*===========================================================================*/ +/* MMC_SPI driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Delays insertions. + * @details If enabled this options inserts delays into the MMC waiting + * routines releasing some extra CPU time for the threads with + * lower priority, this may slow down the driver a bit however. + * This option is recommended also if the SPI driver does not + * use a DMA channel and heavily loads the CPU. + */ +#if !defined(MMC_NICE_WAITING) || defined(__DOXYGEN__) +#define MMC_NICE_WAITING TRUE +#endif + +/*===========================================================================*/ +/* SDC driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Number of initialization attempts before rejecting the card. + * @note Attempts are performed at 10mS intervals. + */ +#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__) +#define SDC_INIT_RETRY 100 +#endif + +/** + * @brief Include support for MMC cards. + * @note MMC support is not yet implemented so this option must be kept + * at @p FALSE. + */ +#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__) +#define SDC_MMC_SUPPORT FALSE +#endif + +/** + * @brief Delays insertions. + * @details If enabled this options inserts delays into the MMC waiting + * routines releasing some extra CPU time for the threads with + * lower priority, this may slow down the driver a bit however. + */ +#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__) +#define SDC_NICE_WAITING TRUE +#endif + +/*===========================================================================*/ +/* SERIAL driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Default bit rate. + * @details Configuration parameter, this is the baud rate selected for the + * default configuration. + */ +#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__) +#define SERIAL_DEFAULT_BITRATE 38400 +#endif + +/** + * @brief Serial buffers size. + * @details Configuration parameter, you can change the depth of the queue + * buffers depending on the requirements of your application. + * @note The default is 64 bytes for both the transmission and receive + * buffers. + */ +#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__) +#define SERIAL_BUFFERS_SIZE 16 +#endif + +/*===========================================================================*/ +/* SERIAL_USB driver related setting. */ +/*===========================================================================*/ + +/** + * @brief Serial over USB buffers size. + * @details Configuration parameter, the buffer size must be a multiple of + * the USB data endpoint maximum packet size. + * @note The default is 64 bytes for both the transmission and receive + * buffers. + */ +#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__) +#define SERIAL_USB_BUFFERS_SIZE 256 +#endif + +/*===========================================================================*/ +/* SPI driver related settings. */ +/*===========================================================================*/ + +/** + * @brief Enables synchronous APIs. + * @note Disabling this option saves both code and data space. + */ +#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__) +#define SPI_USE_WAIT TRUE +#endif + +/** + * @brief Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs. + * @note Disabling this option saves both code and data space. + */ +#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) +#define SPI_USE_MUTUAL_EXCLUSION TRUE +#endif + +#endif /* _HALCONF_H_ */ + +/** @} */ diff --git a/testhal/NRF51/NRF51822/I2C/main.c b/testhal/NRF51/NRF51822/I2C/main.c new file mode 100644 index 00000000..cd038b58 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/main.c @@ -0,0 +1,164 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/* + This demo: + 1) Writes bytes to the EEPROM + 2) Reads the same bytes back + 3) Inverts the byte values + 4) Writes them + 5) Reads them back + */ + +#include + +#include "ch.h" +#include "hal.h" + +#define I2C_ADDR 0x50 +#define I2C_FAKE_ADDR 0x4C +#define EEPROM_START_ADDR 0x00 + +/* + * EEPROM thread. + */ +static THD_WORKING_AREA(PollEepromThreadWA, 1024); +static THD_FUNCTION(PollEepromThread, arg) { + + unsigned i; + uint8_t tx_data[5]; + uint8_t rx_data[4]; + msg_t status; + + (void)arg; + + chRegSetThreadName("PollEeprom"); + + /* set initial data to write */ + tx_data[0] = EEPROM_START_ADDR; + tx_data[1] = 0xA0; + tx_data[2] = 0xA1; + tx_data[3] = 0xA2; + tx_data[4] = 0xA3; + + while (true) { + + /* write out initial data */ + i2cAcquireBus(&I2CD1); + status = i2cMasterTransmitTimeout(&I2CD1, I2C_ADDR, tx_data, sizeof(tx_data), NULL, 0, TIME_INFINITE); + i2cReleaseBus(&I2CD1); + osalDbgCheck(MSG_OK == status); + + /* read back inital data */ + osalThreadSleepMilliseconds(2); + i2cAcquireBus(&I2CD1); + status = i2cMasterTransmitTimeout(&I2CD1, I2C_ADDR, tx_data, 1, rx_data, sizeof(rx_data), TIME_INFINITE); + i2cReleaseBus(&I2CD1); + osalDbgCheck(MSG_OK == status); + + /* invert the data */ + for (i = 1; i < sizeof(tx_data); i++) + tx_data[i] ^= 0xff; + + /* write out inverted data */ + osalThreadSleepMilliseconds(2); + i2cAcquireBus(&I2CD1); + status = i2cMasterTransmitTimeout(&I2CD1, I2C_ADDR, tx_data, sizeof(tx_data), NULL, 0, TIME_INFINITE); + i2cReleaseBus(&I2CD1); + osalDbgCheck(MSG_OK == status); + + /* read back inverted data */ + osalThreadSleepMilliseconds(2); + i2cAcquireBus(&I2CD1); + status = i2cMasterTransmitTimeout(&I2CD1, I2C_ADDR, tx_data, 1, rx_data, sizeof(rx_data), TIME_INFINITE); + i2cReleaseBus(&I2CD1); + osalDbgCheck(MSG_OK == status); + + osalThreadSleepMilliseconds(TIME_INFINITE); + } +} + +/* + * Fake polling thread. + */ +static THD_WORKING_AREA(PollFakeThreadWA, 256); +static THD_FUNCTION(PollFakeThread, arg) { + + (void)arg; + + chRegSetThreadName("PollFake"); + while (true) { + + msg_t status; + uint8_t rx_data[2]; + i2cflags_t errors; + + i2cAcquireBus(&I2CD1); + status = i2cMasterReceiveTimeout(&I2CD1, I2C_FAKE_ADDR, rx_data, 2, MS2ST(4)); + i2cReleaseBus(&I2CD1); + + if (status == MSG_RESET){ + errors = i2cGetErrors(&I2CD1); + osalDbgCheck(I2C_ACK_FAILURE == errors); + } + + palTogglePad(IOPORT1, LED1); /* on */ + osalThreadSleepMilliseconds(1000); + } +} + +/* + * I2C1 config. + */ +static const I2CConfig i2cfg = { + 400000, + I2C_SCL, + I2C_SDA, +}; + +/* + * Entry point, note, the main() function is already a thread in the system + * on entry. + */ +int main(void) { + + halInit(); + chSysInit(); + + i2cStart(&I2CD1, &i2cfg); + + /* Create EEPROM thread. */ + chThdCreateStatic(PollEepromThreadWA, + sizeof(PollEepromThreadWA), + NORMALPRIO, + PollEepromThread, + NULL); + + /* Create not responding thread. */ + chThdCreateStatic(PollFakeThreadWA, + sizeof(PollFakeThreadWA), + NORMALPRIO, + PollFakeThread, + NULL); + + /* main loop handles LED */ + while (true) { + palTogglePad(IOPORT1, LED0); /* on */ + osalThreadSleepMilliseconds(500); + } + + return 0; +} diff --git a/testhal/NRF51/NRF51822/I2C/mcuconf.h b/testhal/NRF51/NRF51822/I2C/mcuconf.h new file mode 100644 index 00000000..e1747ec3 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/mcuconf.h @@ -0,0 +1,25 @@ +/* + Copyright (C) 2015 Stephen Caudle + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +#ifndef _MCUCONF_H_ +#define _MCUCONF_H_ + +/* + * HAL driver system settings. + */ +#define NRF51_I2C_USE_I2C0 TRUE + +#endif /* _MCUCONF_H_ */ diff --git a/testhal/NRF51/NRF51822/I2C/readme.txt b/testhal/NRF51/NRF51822/I2C/readme.txt new file mode 100644 index 00000000..ae264201 --- /dev/null +++ b/testhal/NRF51/NRF51822/I2C/readme.txt @@ -0,0 +1,21 @@ +***************************************************************************** +** ChibiOS/HAL - I2C driver demo for NRF51x22. ** +***************************************************************************** + +** TARGET ** + +The demo runs on an Waveshare BLE400 board. + +** The Demo ** + +The application demonstrates the use of the NRF51x22 I2C driver. + +** Board Setup ** + +- Connect AT24CXX EEPROM board to I2C port on BLE400 board + +** Build Procedure ** + +The demo has been tested using the free Codesourcery GCC-based toolchain +and YAGARTO. +Just modify the TRGT line in the makefile in order to use different GCC ports.