Starting EX improvements: improved L3GD20 driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9638 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Rocco Marco Guglielmi 2016-06-17 11:32:10 +00:00
parent fd47b671f8
commit beabb0d0ae
4 changed files with 960 additions and 727 deletions

View File

@ -33,58 +33,7 @@
/* Driver local definitions. */ /* Driver local definitions. */
/*===========================================================================*/ /*===========================================================================*/
#define L3GD20_SENS_250DPS ((float)0.00875f) #define PI 3.14159f
#define L3GD20_SENS_500DPS ((float)0.01750f)
#define L3GD20_SENS_2000DPS ((float)0.07000f)
#define L3GD20_DI ((uint8_t)0xFF)
#define L3GD20_DI_0 ((uint8_t)0x01)
#define L3GD20_DI_1 ((uint8_t)0x02)
#define L3GD20_DI_2 ((uint8_t)0x04)
#define L3GD20_DI_3 ((uint8_t)0x08)
#define L3GD20_DI_4 ((uint8_t)0x10)
#define L3GD20_DI_5 ((uint8_t)0x20)
#define L3GD20_DI_6 ((uint8_t)0x40)
#define L3GD20_DI_7 ((uint8_t)0x80)
#define L3GD20_AD ((uint8_t)0x3F)
#define L3GD20_AD_0 ((uint8_t)0x01)
#define L3GD20_AD_1 ((uint8_t)0x02)
#define L3GD20_AD_2 ((uint8_t)0x04)
#define L3GD20_AD_3 ((uint8_t)0x08)
#define L3GD20_AD_4 ((uint8_t)0x10)
#define L3GD20_AD_5 ((uint8_t)0x20)
#define L3GD20_MS ((uint8_t)0x40)
#define L3GD20_RW ((uint8_t)0x80)
#define L3GD20_AD_WHO_AM_I ((uint8_t)0x0F)
#define L3GD20_AD_CTRL_REG1 ((uint8_t)0x20)
#define L3GD20_AD_CTRL_REG2 ((uint8_t)0x21)
#define L3GD20_AD_CTRL_REG3 ((uint8_t)0x22)
#define L3GD20_AD_CTRL_REG4 ((uint8_t)0x23)
#define L3GD20_AD_CTRL_REG5 ((uint8_t)0x24)
#define L3GD20_AD_REFERENCE ((uint8_t)0x25)
#define L3GD20_AD_OUT_TEMP ((uint8_t)0x26)
#define L3GD20_AD_STATUS_REG ((uint8_t)0x27)
#define L3GD20_AD_OUT_X_L ((uint8_t)0x28)
#define L3GD20_AD_OUT_X_H ((uint8_t)0x29)
#define L3GD20_AD_OUT_Y_L ((uint8_t)0x2A)
#define L3GD20_AD_OUT_Y_H ((uint8_t)0x2B)
#define L3GD20_AD_OUT_Z_L ((uint8_t)0x2C)
#define L3GD20_AD_OUT_Z_H ((uint8_t)0x2D)
#define L3GD20_AD_FIFO_CTRL_REG ((uint8_t)0x2E)
#define L3GD20_AD_FIFO_SRC_REG ((uint8_t)0x2F)
#define L3GD20_AD_INT1_CFG ((uint8_t)0x30)
#define L3GD20_AD_INT1_SRC ((uint8_t)0x31)
#define L3GD20_AD_INT1_TSH_XH ((uint8_t)0x32)
#define L3GD20_AD_INT1_TSH_XL ((uint8_t)0x33)
#define L3GD20_AD_INT1_TSH_YH ((uint8_t)0x34)
#define L3GD20_AD_INT1_TSH_YL ((uint8_t)0x35)
#define L3GD20_AD_INT1_TSH_ZH ((uint8_t)0x36)
#define L3GD20_AD_INT1_TSH_ZL ((uint8_t)0x37)
#define L3GD20_AD_INT1_DURATION ((uint8_t)0x38)
#define L3GD20_CTRL_REG4_FS_MASK ((uint8_t)0x30)
/*===========================================================================*/ /*===========================================================================*/
/* Driver exported variables. */ /* Driver exported variables. */
@ -94,14 +43,6 @@
/* Driver local variables and types. */ /* Driver local variables and types. */
/*===========================================================================*/ /*===========================================================================*/
/**
* @brief L3GD20 Power Mode
*/
typedef enum {
L3GD20_PM_POWER_DOWN = 0x00, /**< Power down enabled. */
L3GD20_PM_SLEEP_NORMAL = 0x08 /**< Normal operation mode. */
}l3gd20_pm_t;
/*===========================================================================*/ /*===========================================================================*/
/* Driver local functions. */ /* Driver local functions. */
/*===========================================================================*/ /*===========================================================================*/
@ -112,16 +53,18 @@ typedef enum {
* @pre The SPI interface must be initialized and the driver started. * @pre The SPI interface must be initialized and the driver started.
* *
* @param[in] spip pointer to the SPI interface * @param[in] spip pointer to the SPI interface
* @param[in] reg register number * @param[in] reg starting register address
* @return register value. * @param[in] n number of adjacent registers to write
* @param[in] b pointer to a buffer.
*/ */
static uint8_t l3gd20SPIReadRegister(SPIDriver *spip, uint8_t reg) { static void l3gd20SPIReadRegister(SPIDriver *spip, uint8_t reg, size_t n,
uint8_t txbuf[2] = {L3GD20_RW | reg, 0xFF}; uint8_t* b) {
uint8_t rxbuf[2] = {0x00, 0x00}; uint8_t cmd;
(n == 1) ? (cmd = reg) : (cmd = reg | L3GD20_RW | L3GD20_MS);
spiSelect(spip); spiSelect(spip);
spiExchange(spip, 2, txbuf, rxbuf); spiSend(spip, 1, &cmd);
spiReceive(spip, n, b);
spiUnselect(spip); spiUnselect(spip);
return rxbuf[1];
} }
/** /**
@ -129,51 +72,18 @@ static uint8_t l3gd20SPIReadRegister(SPIDriver *spip, uint8_t reg) {
* @pre The SPI interface must be initialized and the driver started. * @pre The SPI interface must be initialized and the driver started.
* *
* @param[in] spip pointer to the SPI interface * @param[in] spip pointer to the SPI interface
* @param[in] reg register number * @param[in] reg starting register address
* @param[in] value register value. * @param[in] n number of adjacent registers to write
* @param[in] value pointer to a buffer of values.
*/ */
static void l3gd20SPIWriteRegister(SPIDriver *spip, uint8_t reg, static void l3gd20SPIWriteRegister(SPIDriver *spip, uint8_t reg, size_t n,
uint8_t value) { uint8_t* b) {
uint8_t cmd;
switch (reg) { (n == 1) ? (cmd = reg) : (cmd = reg | L3GD20_MS);
default: spiSelect(spip);
/* Reserved register must not be written, according to the datasheet spiSend(spip, 1, &cmd);
* this could permanently damage the device. spiSend(spip, n, b);
*/ spiUnselect(spip);
osalDbgAssert(FALSE, "l3gd20SPIWriteRegister(), reserved register");
case L3GD20_AD_WHO_AM_I:
case L3GD20_AD_OUT_TEMP :
case L3GD20_AD_STATUS_REG:
case L3GD20_AD_OUT_X_L:
case L3GD20_AD_OUT_X_H:
case L3GD20_AD_OUT_Y_L:
case L3GD20_AD_OUT_Y_H:
case L3GD20_AD_OUT_Z_L:
case L3GD20_AD_OUT_Z_H:
case L3GD20_AD_FIFO_SRC_REG:
case L3GD20_AD_INT1_SRC:
/* Read only registers cannot be written, the command is ignored.*/
return;
case L3GD20_AD_CTRL_REG1:
case L3GD20_AD_CTRL_REG2:
case L3GD20_AD_CTRL_REG3:
case L3GD20_AD_CTRL_REG4:
case L3GD20_AD_CTRL_REG5:
case L3GD20_AD_REFERENCE:
case L3GD20_AD_FIFO_CTRL_REG:
case L3GD20_AD_INT1_CFG:
case L3GD20_AD_INT1_TSH_XH:
case L3GD20_AD_INT1_TSH_XL:
case L3GD20_AD_INT1_TSH_YH:
case L3GD20_AD_INT1_TSH_YL:
case L3GD20_AD_INT1_TSH_ZH:
case L3GD20_AD_INT1_TSH_ZL:
case L3GD20_AD_INT1_DURATION:
spiSelect(spip);
uint8_t txbuf[2] = {reg, value};
spiSend(spip, 2, txbuf);
spiUnselect(spip);
}
} }
#endif /* L3GD20_USE_SPI */ #endif /* L3GD20_USE_SPI */
@ -187,6 +97,7 @@ static size_t get_axes_number(void *ip) {
} }
static msg_t read_raw(void *ip, int32_t axes[L3GD20_NUMBER_OF_AXES]) { static msg_t read_raw(void *ip, int32_t axes[L3GD20_NUMBER_OF_AXES]) {
uint8_t buff [L3GD20_NUMBER_OF_AXES * 2], i;
int16_t tmp; int16_t tmp;
osalDbgCheck((ip != NULL) && (axes != NULL)); osalDbgCheck((ip != NULL) && (axes != NULL));
@ -201,27 +112,12 @@ static msg_t read_raw(void *ip, int32_t axes[L3GD20_NUMBER_OF_AXES]) {
spiStart(((L3GD20Driver *)ip)->config->spip, spiStart(((L3GD20Driver *)ip)->config->spip,
((L3GD20Driver *)ip)->config->spicfg); ((L3GD20Driver *)ip)->config->spicfg);
#endif /* L3GD20_SHARED_SPI */ #endif /* L3GD20_SHARED_SPI */
if(((L3GD20Driver *)ip)->config->axesenabling & L3GD20_AE_X){ l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip, L3GD20_AD_OUT_X_L,
tmp = l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip, L3GD20_NUMBER_OF_AXES * 2, buff);
L3GD20_AD_OUT_X_L); for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) {
tmp += l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip, tmp = buff[2*i] + (buff[2*i+1] << 8);
L3GD20_AD_OUT_X_H) << 8; axes[i] = (int32_t)tmp;
axes[0] = (int32_t)tmp + ((L3GD20Driver *)ip)->bias[0]; }
}
if(((L3GD20Driver *)ip)->config->axesenabling & L3GD20_AE_Y){
tmp = l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip,
L3GD20_AD_OUT_Y_L);
tmp += l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip,
L3GD20_AD_OUT_Y_H) << 8;
axes[1] = (int32_t)tmp + ((L3GD20Driver *)ip)->bias[1];
}
if(((L3GD20Driver *)ip)->config->axesenabling & L3GD20_AE_Z){
tmp = l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip,
L3GD20_AD_OUT_Z_L);
tmp += l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip,
L3GD20_AD_OUT_Z_H) << 8;
axes[2] = (int32_t)tmp + ((L3GD20Driver *)ip)->bias[2];
}
#if L3GD20_SHARED_SPI #if L3GD20_SHARED_SPI
spiReleaseBus(((L3GD20Driver *)ip)->config->spip); spiReleaseBus(((L3GD20Driver *)ip)->config->spip);
#endif /* L3GD20_SHARED_SPI */ #endif /* L3GD20_SHARED_SPI */
@ -241,7 +137,8 @@ static msg_t read_cooked(void *ip, float axes[]) {
msg = read_raw(ip, raw); msg = read_raw(ip, raw);
for(i = 0; i < L3GD20_NUMBER_OF_AXES ; i++){ for(i = 0; i < L3GD20_NUMBER_OF_AXES ; i++){
axes[i] = raw[i] * ((L3GD20Driver *)ip)->sensitivity[i]; axes[i] = (raw[i] * ((L3GD20Driver *)ip)->sensitivity[i]);
axes[i] -= ((L3GD20Driver *)ip)->bias[i];
} }
return msg; return msg;
} }
@ -265,7 +162,8 @@ static msg_t sample_bias(void *ip) {
} }
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++){ for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++){
((L3GD20Driver *)ip)->bias[i] = buff[i] / L3GD20_BIAS_ACQ_TIMES; ((L3GD20Driver *)ip)->bias[i] = (buff[i] / L3GD20_BIAS_ACQ_TIMES);
((L3GD20Driver *)ip)->bias[i] *= ((L3GD20Driver *)ip)->sensitivity[i];
} }
return MSG_OK; return MSG_OK;
} }
@ -337,25 +235,70 @@ static msg_t reset_sensivity(void *ip) {
return MSG_OK; return MSG_OK;
} }
static msg_t get_temperature(void *ip, float* tempp) { static msg_t set_full_scale(void *ip, l3gd20_fs_t fs) {
float newfs, scale;
unsigned i;
#if L3GD20_USE_SPI if(fs == L3GD20_FS_250DPS) {
osalDbgAssert((((L3GD20Driver *)ip)->config->spip->state == SPI_READY), newfs = L3GD20_250DPS;
"read_raw(), channel not ready"); }
#if L3GD20_SHARED_SPI else if(fs == L3GD20_FS_500DPS) {
spiAcquireBus(((L3GD20Driver *)ip)->config->spip); newfs = L3GD20_500DPS;
spiStart(((L3GD20Driver *)ip)->config->spip, }
((L3GD20Driver *)ip)->config->spicfg); else if(fs == L3GD20_FS_2000DPS) {
#endif /* L3GD20_SHARED_SPI */ newfs = L3GD20_2000DPS;
*tempp = (int8_t)l3gd20SPIReadRegister(((L3GD20Driver *)ip)->config->spip, }
L3GD20_AD_OUT_TEMP); else {
#if L3GD20_SHARED_SPI return MSG_RESET;
spiReleaseBus(((L3GD20Driver *)ip)->config->spip); }
#endif /* L3GD20_SHARED_SPI */
#endif /* L3GD20_USE_SPI */ if(newfs != ((L3GD20Driver *)ip)->fullscale) {
scale = newfs / ((L3GD20Driver *)ip)->fullscale;
((L3GD20Driver *)ip)->fullscale = newfs;
/* Scaling sensitivity and bias. Re-calibration is suggested anyway. */
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) {
((L3GD20Driver *)ip)->sensitivity[i] *= scale;
((L3GD20Driver *)ip)->bias[i] *= scale;
}
}
return MSG_OK; return MSG_OK;
} }
static l3gd20_fs_t get_full_scale(void *ip) {
if(((L3GD20Driver *)ip)->fullscale == L3GD20_250DPS) {
return L3GD20_FS_250DPS;
}
else if(((L3GD20Driver *)ip)->fullscale == L3GD20_500DPS) {
return L3GD20_FS_500DPS;
}
else {
return L3GD20_FS_2000DPS;
}
}
static msg_t set_meas_unit(void *ip, l3gd20_unit_t unit) {
unsigned i;
if(unit != ((L3GD20Driver *)ip)->meas_unit) {
((L3GD20Driver *)ip)->meas_unit = unit;
/* From RPS to DPS */
if(unit == L3GD20_UNIT_DPS)
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++)
((L3GD20Driver *)ip)->sensitivity[i] *= (2 * PI);
/* From DPS to RPS */
else if(unit == L3GD20_UNIT_RPS)
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++)
((L3GD20Driver *)ip)->sensitivity[i] /= (2 * PI);
else
return MSG_RESET;
}
return MSG_OK;
}
static l3gd20_unit_t get_meas_unit(void *ip) {
return ((L3GD20Driver *)ip)->meas_unit;
}
static const struct BaseSensorVMT vmt_basesensor = { static const struct BaseSensorVMT vmt_basesensor = {
get_axes_number, read_raw, read_cooked get_axes_number, read_raw, read_cooked
}; };
@ -369,7 +312,9 @@ static const struct BaseGyroscopeVMT vmt_basegyroscope = {
static const struct L3GD20VMT vmt_l3gd20 = { static const struct L3GD20VMT vmt_l3gd20 = {
get_axes_number, read_raw, read_cooked, get_axes_number, read_raw, read_cooked,
sample_bias, set_bias, reset_bias, sample_bias, set_bias, reset_bias,
set_sensivity, reset_sensivity, get_temperature set_sensivity, reset_sensivity,
set_full_scale, get_full_scale,
set_meas_unit, get_meas_unit
}; };
/*===========================================================================*/ /*===========================================================================*/
@ -404,6 +349,7 @@ void l3gd20ObjectInit(L3GD20Driver *devp) {
*/ */
void l3gd20Start(L3GD20Driver *devp, const L3GD20Config *config) { void l3gd20Start(L3GD20Driver *devp, const L3GD20Config *config) {
uint32_t i; uint32_t i;
uint8_t cr[5] = {0, 0, 0, 0, 0};
osalDbgCheck((devp != NULL) && (config != NULL)); osalDbgCheck((devp != NULL) && (config != NULL));
osalDbgAssert((devp->state == L3GD20_STOP) || (devp->state == L3GD20_READY), osalDbgAssert((devp->state == L3GD20_STOP) || (devp->state == L3GD20_READY),
@ -417,29 +363,105 @@ void l3gd20Start(L3GD20Driver *devp, const L3GD20Config *config) {
#endif /* L3GD20_SHARED_SPI */ #endif /* L3GD20_SHARED_SPI */
spiStart((devp)->config->spip, spiStart((devp)->config->spip,
(devp)->config->spicfg); (devp)->config->spicfg);
/* Control register 1 configuration block */
{
cr[0] = L3GD20_CTRL_REG1_XEN | L3GD20_CTRL_REG1_YEN |
L3GD20_CTRL_REG1_ZEN | L3GD20_CTRL_REG1_PD |
devp->config->outputdatarate;
#if L3GD20_USE_ADVANCED || defined(__DOXYGEN__)
cr[0] |= devp->config->bandwidth;
#endif
}
/* Control register 2 configuration block */
{
#if L3GD20_USE_ADVANCED || defined(__DOXYGEN__)
if(devp->config->hpmode != L3GD20_HPM_BYPASSED)
cr[1] = devp->config->hpmode | devp->config->hpconfiguration;
#endif
}
/* Control register 3 configuration block */
{
}
/* Control register 4 configuration block */
{
cr[3] = devp->config->fullscale;
#if L3GD20_USE_ADVANCED || defined(__DOXYGEN__)
cr[3] |= devp->config->blockdataupdate |
devp->config->endianness;
#endif
}
/* Control register 5 configuration block */
{
#if L3GD20_USE_ADVANCED || defined(__DOXYGEN__)
if((devp->config->hpmode != L3GD20_HPM_BYPASSED)) {
cr[4] = L3GD20_CTRL_REG5_HPEN;
if(devp->config->lp2mode != L3GD20_LP2M_BYPASSED) {
cr[4] |= L3GD20_CTRL_REG5_INT1_SEL1 |
L3GD20_CTRL_REG5_OUT_SEL1;
}
else {
cr[4] |= L3GD20_CTRL_REG5_INT1_SEL0 |
L3GD20_CTRL_REG5_OUT_SEL0;
}
}
#endif
}
l3gd20SPIWriteRegister(devp->config->spip, L3GD20_AD_CTRL_REG1, l3gd20SPIWriteRegister(devp->config->spip, L3GD20_AD_CTRL_REG1,
devp->config->axesenabling | 5, cr);
L3GD20_PM_SLEEP_NORMAL |
devp->config->outputdatarate);
l3gd20SPIWriteRegister(devp->config->spip, L3GD20_AD_CTRL_REG4,
devp->config->fullscale |
devp->config->blockdataupdate |
devp->config->endianness);
#if L3GD20_SHARED_SPI #if L3GD20_SHARED_SPI
spiReleaseBus((devp)->config->spip); spiReleaseBus((devp)->config->spip);
#endif /* L3GD20_SHARED_SPI */ #endif /* L3GD20_SHARED_SPI */
#endif /* L3GD20_USE_SPI */ #endif /* L3GD20_USE_SPI */
/* Storing sensitivity information according to full scale value */ /* Storing sensitivity information according to full scale and unit value */
if(devp->config->fullscale == L3GD20_FS_250DPS) if(devp->config->fullscale == L3GD20_FS_250DPS) {
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) devp->fullscale = L3GD20_250DPS;
devp->sensitivity[i] = L3GD20_SENS_250DPS; for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) {
else if(devp->config->fullscale == L3GD20_FS_500DPS) if(devp->meas_unit == L3GD20_UNIT_DPS) {
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) devp->sensitivity[i] = L3GD20_SENS_250DPS;
devp->sensitivity[i] = L3GD20_SENS_500DPS; }
else if(devp->config->fullscale == L3GD20_FS_2000DPS) else if (devp->meas_unit == L3GD20_UNIT_RPS) {
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) devp->sensitivity[i] = L3GD20_SENS_250DPS / (2 * PI);
devp->sensitivity[i] = L3GD20_SENS_2000DPS; }
else {
devp->sensitivity[i] = 1.0;
}
}
}
else if(devp->config->fullscale == L3GD20_FS_500DPS) {
devp->fullscale = L3GD20_500DPS;
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) {
if(devp->meas_unit == L3GD20_UNIT_DPS) {
devp->sensitivity[i] = L3GD20_SENS_500DPS;
}
else if (devp->meas_unit == L3GD20_UNIT_RPS) {
devp->sensitivity[i] = L3GD20_SENS_500DPS / (2 * PI);
}
else {
devp->sensitivity[i] = 1.0;
}
}
}
else if(devp->config->fullscale == L3GD20_FS_2000DPS) {
devp->fullscale = L3GD20_2000DPS;
for(i = 0; i < L3GD20_NUMBER_OF_AXES; i++) {
if(devp->meas_unit == L3GD20_UNIT_DPS) {
devp->sensitivity[i] = L3GD20_SENS_500DPS;
}
else if (devp->meas_unit == L3GD20_UNIT_RPS) {
devp->sensitivity[i] = L3GD20_SENS_500DPS / (2 * PI);
}
else {
devp->sensitivity[i] = 1.0;
}
}
}
else else
osalDbgAssert(FALSE, "l3gd20Start(), full scale issue"); osalDbgAssert(FALSE, "l3gd20Start(), full scale issue");
/* This is the Gyroscope transient recovery time */ /* This is the Gyroscope transient recovery time */
@ -456,7 +478,7 @@ void l3gd20Start(L3GD20Driver *devp, const L3GD20Config *config) {
* @api * @api
*/ */
void l3gd20Stop(L3GD20Driver *devp) { void l3gd20Stop(L3GD20Driver *devp) {
uint8_t cr1;
osalDbgCheck(devp != NULL); osalDbgCheck(devp != NULL);
osalDbgAssert((devp->state == L3GD20_STOP) || (devp->state == L3GD20_READY), osalDbgAssert((devp->state == L3GD20_STOP) || (devp->state == L3GD20_READY),
@ -469,8 +491,10 @@ void l3gd20Stop(L3GD20Driver *devp) {
spiStart((devp)->config->spip, spiStart((devp)->config->spip,
(devp)->config->spicfg); (devp)->config->spicfg);
#endif /* L3GD20_SHARED_SPI */ #endif /* L3GD20_SHARED_SPI */
/* Disabling all axes and enabling power down mode */
cr1 = 0;
l3gd20SPIWriteRegister(devp->config->spip, L3GD20_AD_CTRL_REG1, l3gd20SPIWriteRegister(devp->config->spip, L3GD20_AD_CTRL_REG1,
L3GD20_PM_POWER_DOWN | L3GD20_AE_DISABLED); 1, &cr1);
spiStop((devp)->config->spip); spiStop((devp)->config->spip);
#if L3GD20_SHARED_SPI #if L3GD20_SHARED_SPI
spiReleaseBus((devp)->config->spip); spiReleaseBus((devp)->config->spip);

View File

@ -35,9 +35,132 @@
/*===========================================================================*/ /*===========================================================================*/
/** /**
* @brief L3GD20 number of axes. * @brief L3GD20 characteristics
*/ */
#define L3GD20_NUMBER_OF_AXES ((size_t) 3U) #define L3GD20_NUMBER_OF_AXES 3U
#define L3GD20_250DPS 250.0f
#define L3GD20_500DPS 500.0f
#define L3GD20_2000DPS 2000.0f
#define L3GD20_SENS_250DPS 0.00875f
#define L3GD20_SENS_500DPS 0.01750f
#define L3GD20_SENS_2000DPS 0.07000f
/** @} */
/**
* @name L3GD20 communication interfaces related bit masks
* @{
*/
#define L3GD20_DI_MASK 0xFF /**< Data In mask */
#define L3GD20_DI(n) (1 << n) /**< Data In bit n */
#define L3GD20_AD_MASK 0x3F /**< Address Data mask */
#define L3GD20_AD(n) (1 << n) /**< Address Data bit n */
#define L3GD20_MS (1 << 6) /**< Multiple read write */
#define L3GD20_RW (1 << 7) /**< Read Write selector */
/** @} */
/**
* @name L3GD20 register addresses
* @{
*/
#define L3GD20_AD_WHO_AM_I 0x0F
#define L3GD20_AD_CTRL_REG1 0x20
#define L3GD20_AD_CTRL_REG2 0x21
#define L3GD20_AD_CTRL_REG3 0x22
#define L3GD20_AD_CTRL_REG4 0x23
#define L3GD20_AD_CTRL_REG5 0x24
#define L3GD20_AD_REFERENCE 0x25
#define L3GD20_AD_OUT_TEMP 0x26
#define L3GD20_AD_STATUS_REG 0x27
#define L3GD20_AD_OUT_X_L 0x28
#define L3GD20_AD_OUT_X_H 0x29
#define L3GD20_AD_OUT_Y_L 0x2A
#define L3GD20_AD_OUT_Y_H 0x2B
#define L3GD20_AD_OUT_Z_L 0x2C
#define L3GD20_AD_OUT_Z_H 0x2D
#define L3GD20_AD_FIFO_CTRL_REG 0x2E
#define L3GD20_AD_FIFO_SRC_REG 0x2F
#define L3GD20_AD_INT1_CFG 0x30
#define L3GD20_AD_INT1_SRC 0x31
#define L3GD20_AD_INT1_TSH_XH 0x32
#define L3GD20_AD_INT1_TSH_XL 0x33
#define L3GD20_AD_INT1_TSH_YH 0x34
#define L3GD20_AD_INT1_TSH_YL 0x35
#define L3GD20_AD_INT1_TSH_ZH 0x36
#define L3GD20_AD_INT1_TSH_ZL 0x37
#define L3GD20_AD_INT1_DURATION 0x38
/** @} */
/**
* @name L3GD20_CTRL_REG1 register bits definitions
* @{
*/
#define L3GD20_CTRL_REG1_MASK 0xFF /**< L3GD20_CTRL_REG1 mask */
#define L3GD20_CTRL_REG1_XEN (1 << 0) /**< X axis enable */
#define L3GD20_CTRL_REG1_YEN (1 << 1) /**< Y axis enable */
#define L3GD20_CTRL_REG1_ZEN (1 << 2) /**< Z axis enable */
#define L3GD20_CTRL_REG1_PD (1 << 3) /**< Power-down mode enable */
#define L3GD20_CTRL_REG1_BW0 (1 << 4) /**< Bandwidth bit 0 */
#define L3GD20_CTRL_REG1_BW1 (1 << 5) /**< Bandwidth bit 1 */
#define L3GD20_CTRL_REG1_DR0 (1 << 6) /**< Output data rate bit 0 */
#define L3GD20_CTRL_REG1_DR1 (1 << 7) /**< Output data rate bit 1 */
/** @} */
/**
* @name L3GD20_CTRL_REG2 register bits definitions
* @{
*/
#define L3GD20_CTRL_REG2_MASK 0x3F /**< L3GD20_CTRL_REG2 mask */
#define L3GD20_CTRL_REG2_HPCF0 (1 << 0) /**< HP filter cutoff bit 0 */
#define L3GD20_CTRL_REG2_HPCF1 (1 << 1) /**< HP filter cutoff bit 1 */
#define L3GD20_CTRL_REG2_HPCF2 (1 << 2) /**< HP filter cutoff bit 2 */
#define L3GD20_CTRL_REG2_HPCF3 (1 << 3) /**< HP filter cutoff bit 3 */
#define L3GD20_CTRL_REG2_HPM0 (1 << 4) /**< HP filter mode bit 0 */
#define L3GD20_CTRL_REG2_HPM1 (1 << 5) /**< HP filter mode bit 1 */
/** @} */
/**
* @name L3GD20_CTRL_REG3 register bits definitions
* @{
*/
#define L3GD20_CTRL_REG3_MASK 0xFF /**< L3GD20_CTRL_REG3 mask */
#define L3GD20_CTRL_REG3_I2_EMPTY (1 << 0) /**< FIFO empty IRQ */
#define L3GD20_CTRL_REG3_I2_ORUN (1 << 1) /**< FIFO overrun IRQ */
#define L3GD20_CTRL_REG3_I2_WTM (1 << 2) /**< FIFO watermark IRQ */
#define L3GD20_CTRL_REG3_I2_DRDY (1 << 3) /**< Data ready */
#define L3GD20_CTRL_REG3_PP_OD (1 << 4) /**< Push-pull / Open Drain */
#define L3GD20_CTRL_REG3_H_LACTIVE (1 << 5) /**< IRQ active */
#define L3GD20_CTRL_REG3_I1_BOOT (1 << 6) /**< Boot status available */
#define L3GD20_CTRL_REG3_I1_INT1 (1 << 7) /**< IRQ enable */
/** @} */
/**
* @name L3GD20_CTRL_REG4 register bits definitions
* @{
*/
#define L3GD20_CTRL_REG4_MASK 0xF1 /**< L3GD20_CTRL_REG4 mask */
#define L3GD20_CTRL_REG4_SIM (1 << 0) /**< SPI mode */
#define L3GD20_CTRL_REG4_FS_MASK (3 << 4) /**< Full scale mask */
#define L3GD20_CTRL_REG4_FS0 (1 << 4) /**< Full scale bit 0 */
#define L3GD20_CTRL_REG4_FS1 (1 << 5) /**< Full scale bit 1 */
#define L3GD20_CTRL_REG4_BLE (1 << 6) /**< Big/little endian data */
#define L3GD20_CTRL_REG4_BDU (1 << 7) /**< Block data update */
/** @} */
/**
* @name L3GD20_CTRL_REG5 register bits definitions
* @{
*/
#define L3GD20_CTRL_REG5_MASK 0xDF /**< L3GD20_CTRL_REG5 mask */
#define L3GD20_CTRL_REG5_OUT_SEL0 (1 << 0) /**< Out selection bit 0 */
#define L3GD20_CTRL_REG5_OUT_SEL1 (1 << 1) /**< Out selection bit 1 */
#define L3GD20_CTRL_REG5_INT1_SEL0 (1 << 2) /**< INT1 selection bit 0 */
#define L3GD20_CTRL_REG5_INT1_SEL1 (1 << 3) /**< INT1 selection bit 1 */
#define L3GD20_CTRL_REG5_HPEN (1 << 4) /**< HP filter enable */
#define L3GD20_CTRL_REG5_FIFO_EN (1 << 6) /**< FIFO enable */
#define L3GD20_CTRL_REG5_BOOT (1 << 7) /**< Reboot memory content */
/** @} */
/*===========================================================================*/ /*===========================================================================*/
/* Driver pre-compile time settings. */ /* Driver pre-compile time settings. */
@ -65,6 +188,15 @@
#define L3GD20_USE_I2C FALSE #define L3GD20_USE_I2C FALSE
#endif #endif
/**
* @brief L3GD20 advanced configurations switch.
* @details If set to @p TRUE more configurations are available.
* @note The default is @p FALSE.
*/
#if !defined(L3GD20_USE_ADVANCED) || defined(__DOXYGEN__)
#define L3GD20_USE_ADVANCED FALSE
#endif
/** /**
* @brief L3GD20 shared SPI switch. * @brief L3GD20 shared SPI switch.
* @details If set to @p TRUE the device acquires SPI bus ownership * @details If set to @p TRUE the device acquires SPI bus ownership
@ -118,11 +250,11 @@
/*===========================================================================*/ /*===========================================================================*/
/** /**
* @name L3GD20 data structures and types * @name L3GD20 data structures and types.
* @{ * @{
*/ */
/** /**
* @brief L3GD20 full scale * @brief L3GD20 full scale.
*/ */
typedef enum { typedef enum {
L3GD20_FS_250DPS = 0x00, /**< Full scale 250 degree per second. */ L3GD20_FS_250DPS = 0x00, /**< Full scale 250 degree per second. */
@ -131,41 +263,26 @@ typedef enum {
}l3gd20_fs_t; }l3gd20_fs_t;
/** /**
* @brief L3GD20 output data rate and bandwidth * @brief L3GD20 output data rate and bandwidth.
*/ */
typedef enum { typedef enum {
L3GD20_ODR_95HZ_FC_12_5 = 0x00, /**< ODR 95 Hz, BW 12.5 Hz. */ L3GD20_ODR_95HZ = 0x00, /**< Output data rate 95 Hz. */
L3GD20_ODR_95HZ_FC_25 = 0x10, /**< ODR 95 Hz, BW 25Hz. */ L3GD20_ODR_190HZ = 0x40, /**< Output data rate 190 Hz. */
L3GD20_ODR_190HZ_FC_12_5 = 0x40, /**< ODR 190 Hz, BW 12.5 Hz. */ L3GD20_ODR_380HZ = 0x80, /**< Output data rate 380 Hz. */
L3GD20_ODR_190HZ_FC_25 = 0x50, /**< ODR 190 Hz, BW 25 Hz. */ L3GD20_ODR_760HZ = 0xC0 /**< Output data rate 760 Hz. */
L3GD20_ODR_190HZ_FC_50 = 0x60, /**< ODR 190 Hz, BW 50 Hz. */
L3GD20_ODR_190HZ_FC_70 = 0x70, /**< ODR 190 Hz, BW 70 Hz. */
L3GD20_ODR_380HZ_FC_20 = 0x80, /**< ODR 380 Hz, BW 20 Hz. */
L3GD20_ODR_380HZ_FC_25 = 0x90, /**< ODR 380 Hz, BW 25 Hz. */
L3GD20_ODR_380HZ_FC_50 = 0xA0, /**< ODR 380 Hz, BW 50 Hz. */
L3GD20_ODR_380HZ_FC_100 = 0xB0, /**< ODR 380 Hz, BW 100 Hz. */
L3GD20_ODR_760HZ_FC_30 = 0xC0, /**< ODR 760 Hz, BW 30 Hz. */
L3GD20_ODR_760HZ_FC_35 = 0xD0, /**< ODR 760 Hz, BW 35 Hz. */
L3GD20_ODR_760HZ_FC_50 = 0xE0, /**< ODR 760 Hz, BW 50 Hz. */
L3GD20_ODR_760HZ_FC_100 = 0xF0 /**< ODR 760 Hz, BW 100 Hz. */
}l3gd20_odr_t; }l3gd20_odr_t;
/** /**
* @brief L3GD20 axes enabling * @brief L3GD20 low pass filter 1 bandwidth.
*/ */
typedef enum { typedef enum {
L3GD20_AE_DISABLED = 0x00, /**< All axes disabled. */ L3GD20_BW0 = 0x00, /**< LPF1 bandwidth. Depends on ODR. */
L3GD20_AE_X = 0x01, /**< Only X-axis enabled. */ L3GD20_BW1 = 0x40, /**< LPF1 bandwidth. Depends on ODR. */
L3GD20_AE_Y = 0x02, /**< Only Y-axis enabled. */ L3GD20_BW2 = 0x80, /**< LPF1 bandwidth. Depends on ODR. */
L3GD20_AE_XY = 0x03, /**< X and Y axes enabled. */ L3GD20_BW3 = 0xC0 /**< LPF1 bandwidth. Depends on ODR. */
L3GD20_AE_Z = 0x04, /**< Only Z-axis enabled. */ }l3gd20_bw_t;
L3GD20_AE_XZ = 0x05, /**< X and Z axes enabled. */
L3GD20_AE_YZ = 0x06, /**< Y and Z axes enabled. */
L3GD20_AE_XYZ = 0x07 /**< All axes enabled. */
}l3gd20_ae_t;
/** /**
* @brief L3GD20 block data update * @brief L3GD20 block data update.
*/ */
typedef enum { typedef enum {
L3GD20_BDU_CONTINUOUS = 0x00, /**< Block data continuously updated. */ L3GD20_BDU_CONTINUOUS = 0x00, /**< Block data continuously updated. */
@ -173,13 +290,56 @@ typedef enum {
}l3gd20_bdu_t; }l3gd20_bdu_t;
/** /**
* @brief L3GD20 endianness * @brief L3GD20 HP filter mode.
*/
typedef enum {
L3GD20_HPM_NORMAL = 0x00, /**< Normal mode. */
L3GD20_HPM_REFERENCE = 0x10, /**< Reference signal for filtering. */
L3GD20_HPM_AUTORESET = 0x30, /**< Autoreset on interrupt event. */
L3GD20_HPM_BYPASSED = 0xFF /**< HP filter bypassed */
}l3gd20_hpm_t;
/**
* @brief L3GD20 HP configuration.
*/
typedef enum {
L3GD20_HPCF_0 = 0x00, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_1 = 0x01, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_2 = 0x02, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_3 = 0x03, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_4 = 0x04, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_5 = 0x05, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_6 = 0x06, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_7 = 0x07, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_8 = 0x08, /**< Depends on ODR (Table 26 for more).*/
L3GD20_HPCF_9 = 0x09 /**< Depends on ODR (Table 26 for more).*/
}l3gd20_hpcf_t;
/**
* @brief L3GD20 LP2 filter mode.
* @detail To activate LP2 HP should be active
*/
typedef enum {
L3GD20_LP2M_ON = 0x00, /**< LP2 filter activated. */
L3GD20_LP2M_BYPASSED = 0xFF, /**< LP2 filter bypassed. */
}l3gd20_lp2m_t;
/**
* @brief L3GD20 endianness.
*/ */
typedef enum { typedef enum {
L3GD20_END_LITTLE = 0x00, /**< Little endian. */ L3GD20_END_LITTLE = 0x00, /**< Little endian. */
L3GD20_END_BIG = 0x40 /**< Big endian. */ L3GD20_END_BIG = 0x40 /**< Big endian. */
}l3gd20_end_t; }l3gd20_end_t;
/**
* @brief L3GD20 measurement unit.
*/
typedef enum {
L3GD20_UNIT_DPS = 0x00, /**< Cooked data in degrees per seconds.*/
L3GD20_UNIT_RPS = 0x01, /**< Cooked data in radians per seconds.*/
} l3gd20_unit_t;
/** /**
* @brief Driver state machine possible states. * @brief Driver state machine possible states.
*/ */
@ -194,7 +354,7 @@ typedef enum {
*/ */
typedef struct { typedef struct {
#if (L3GD20_USE_SPI) || defined(__DOXYGEN__) #if L3GD20_USE_SPI || defined(__DOXYGEN__)
/** /**
* @brief SPI driver associated to this L3GD20. * @brief SPI driver associated to this L3GD20.
*/ */
@ -204,7 +364,7 @@ typedef struct {
*/ */
const SPIConfig *spicfg; const SPIConfig *spicfg;
#endif /* L3GD20_USE_SPI */ #endif /* L3GD20_USE_SPI */
#if (L3GD20_USE_I2C) || defined(__DOXYGEN__) #if L3GD20_USE_I2C || defined(__DOXYGEN__)
/** /**
* @brief I2C driver associated to this L3GD20. * @brief I2C driver associated to this L3GD20.
*/ */
@ -215,17 +375,22 @@ typedef struct {
const I2CConfig *i2ccfg; const I2CConfig *i2ccfg;
#endif /* L3GD20_USE_I2C */ #endif /* L3GD20_USE_I2C */
/** /**
* @brief L3GD20 full scale value. * @brief L3GD20 initial sensitivity.
*/
float sensitivity[L3GD20_NUMBER_OF_AXES];
/**
* @brief L3GD20 initial bias.
*/
float bias[L3GD20_NUMBER_OF_AXES];
/**
* @brief L3GD20 initial full scale value.
*/ */
l3gd20_fs_t fullscale; l3gd20_fs_t fullscale;
/** /**
* @brief L3GD20 output data rate selection. * @brief L3GD20 output data rate selection.
*/ */
l3gd20_odr_t outputdatarate; l3gd20_odr_t outputdatarate;
/** #if L3GD20_USE_ADVANCED || defined(__DOXYGEN__)
* @brief L3GD20 axes enabling.
*/
l3gd20_ae_t axesenabling;
/** /**
* @brief L3GD20 block data update. * @brief L3GD20 block data update.
*/ */
@ -234,6 +399,28 @@ typedef struct {
* @brief L3GD20 endianness. * @brief L3GD20 endianness.
*/ */
l3gd20_end_t endianness; l3gd20_end_t endianness;
/**
* @brief L3GD20 LP1 filter bandwidth.
*/
l3gd20_bw_t bandwidth;
/**
* @brief L3GD20 HP filter mode.
*/
l3gd20_hpm_t hpmode;
/**
* @brief L3GD20 HP configuration.
*/
l3gd20_hpcf_t hpconfiguration;
/**
* @brief L3GD20 LP2 filter mode.
* @detail To activate LP2 HP should be active
*/
l3gd20_lp2m_t lp2mode;
#endif
/**
* @brief L3GD20 initial measurement unit.
*/
l3gd20_unit_t unit;
} L3GD20Config; } L3GD20Config;
/** /**
@ -246,9 +433,14 @@ typedef struct L3GD20Driver L3GD20Driver;
*/ */
#define _l3gd20_methods \ #define _l3gd20_methods \
_base_gyroscope_methods \ _base_gyroscope_methods \
/* Retrieve the temperature of L3GD20 chip.*/ \ /* Change full scale value of L3GD20 .*/ \
msg_t (*get_temperature)(void *instance, float* temperature); msg_t (*set_full_scale)(void *instance, l3gd20_fs_t fs); \
/* Get full scale value of L3GD20 .*/ \
l3gd20_fs_t (*get_full_scale)(void *instance); \
/* Change measurement unit of L3GD20 .*/ \
msg_t (*set_meas_unit)(void *instance, l3gd20_unit_t unit); \
/* Get measurement unit of L3GD20 .*/ \
l3gd20_unit_t (*get_meas_unit)(void *instance);
/** /**
* @extends BaseGyroscopeVMT * @extends BaseGyroscopeVMT
@ -268,10 +460,14 @@ struct L3GD20VMT {
l3gd20_state_t state; \ l3gd20_state_t state; \
/* Current configuration data.*/ \ /* Current configuration data.*/ \
const L3GD20Config *config; \ const L3GD20Config *config; \
/* Current sensitivity.*/ \ /* Current sensitivity data.*/ \
float sensitivity[L3GD20_NUMBER_OF_AXES]; \ float sensitivity[L3GD20_NUMBER_OF_AXES]; \
/* Bias data.*/ \ /* Current Bias data.*/ \
int32_t bias[L3GD20_NUMBER_OF_AXES]; float bias[L3GD20_NUMBER_OF_AXES]; \
/* Current full scale value.*/ \
float fullscale; \
/* Measurement unit.*/ \
l3gd20_unit_t meas_unit;
/** /**
* @extends BaseGyroscope * @extends BaseGyroscope
@ -296,19 +492,32 @@ struct L3GD20Driver {
/*===========================================================================*/ /*===========================================================================*/
/** /**
* @brief Get current MEMS temperature. * @brief Change initial fullscale value.
* @detail This information is very useful especially for high accuracy IMU
* *
* @param[in] ip pointer to a @p BaseGyroscope class. * @param[in] ip pointer to a @p BaseGyroscope class.
* @param[out] temp the MEMS temperature as single precision floating. * @param[in] fs the new full scale value.
* *
* @return The operation status. * @return The operation status.
* @retval MSG_OK if the function succeeded. * @retval MSG_OK if the function succeeded.
* @retval MSG_RESET if one or more errors occurred. * @retval MSG_RESET if one or more errors occurred.
* @api * @api
*/ */
#define gyroscopeGetTemp(ip, tpp) \ #define gyroscopeSetFullScale(ip, fs) \
(ip)->vmt_l3gd20->get_temperature(ip, tpp) (ip)->vmt_l3gd20->set_full_scale(ip, fs)
/**
* @brief Set gyroscope cooked data measurement unit.
*
* @param[in] ip pointer to a @p BaseGyroscope class.
* @param[in] unit the MEMS measurement unit.
*
* @return The operation status.
* @retval MSG_OK if the function succeeded.
* @retval MSG_RESET if one or more errors occurred.
* @api
*/
#define gyroscopeSetMeasurementUnit(ip, unit) \
(ip)->vmt_l3gd20->set_meas_unit(ip, unit)
/*===========================================================================*/ /*===========================================================================*/
/* External declarations. */ /* External declarations. */

View File

@ -139,7 +139,7 @@
* @brief Enables the SERIAL subsystem. * @brief Enables the SERIAL subsystem.
*/ */
#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__) #if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL TRUE #define HAL_USE_SERIAL FALSE
#endif #endif
/** /**

View File

@ -192,7 +192,7 @@
/* /*
* SERIAL driver system settings. * SERIAL driver system settings.
*/ */
#define STM32_SERIAL_USE_USART1 TRUE #define STM32_SERIAL_USE_USART1 FALSE
#define STM32_SERIAL_USE_USART2 FALSE #define STM32_SERIAL_USE_USART2 FALSE
#define STM32_SERIAL_USE_USART3 FALSE #define STM32_SERIAL_USE_USART3 FALSE
#define STM32_SERIAL_USE_UART4 FALSE #define STM32_SERIAL_USE_UART4 FALSE