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canable-fw-normaldotcom
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Merge

This commit is contained in:
Ethan Zonca 2015-06-10 08:16:40 -04:00
parent 9a8c9e067b 683746700f
commit 52803f72f5
8 changed files with 209 additions and 61 deletions
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2
.travis.yml
View File

@ -20,4 +20,4 @@ before_script:
script: make BUILD_NUMBER=$TRAVIS_BUILD_NUMBER
after_success:
"artifacts upload --target-paths=builds/b$TRAVIS_BUILD_NUMBER build/CANtact*"
"artifacts upload --target-paths=builds/b$TRAVIS_BUILD_NUMBER build/CANtact*"

10
Inc/can.h
View File

@ -2,9 +2,15 @@
#define _CAN_H
enum can_bitrate {
CAN_BITRATE_500K,
CAN_BITRATE_250K,
CAN_BITRATE_10K,
CAN_BITRATE_20K,
CAN_BITRATE_50K,
CAN_BITRATE_100K,
CAN_BITRATE_125K,
CAN_BITRATE_250K,
CAN_BITRATE_500K,
CAN_BITRATE_750K,
CAN_BITRATE_1000K,
};
enum can_bus_state {

9
Makefile
View File

@ -86,7 +86,11 @@ CFLAGS += -mcpu=$(CPU) -mthumb
CFLAGS += $(USER_CFLAGS)
# default action: build the user application
all: $(BUILD_DIR)/$(TARGET).hex
all: $(BUILD_DIR)/$(TARGET).bin $(BUILD_DIR)/$(TARGET).hex
flash: all
sudo dfu-util -d 0483:df11 -c 1 -i 0 -a 0 -s 0x08000000 -D $(BUILD_DIR)/$(TARGET).bin
#######################################
# build the st micro peripherial library
@ -149,6 +153,9 @@ $(BUILD_DIR)/$(TARGET).hex: $(BUILD_DIR)/$(TARGET).elf
$(OBJCOPY) -O ihex $(BUILD_DIR)/$(TARGET).elf $@
$(OBJCOPY) -O binary $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
$(BUILD_DIR)/$(TARGET).bin: $(BUILD_DIR)/$(TARGET).elf
$(OBJCOPY) -O binary $(BUILD_DIR)/$(TARGET).elf $@
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) $(USB_OBJECTS) $(CUBELIB)
$(CC) -o $@ $(CFLAGS) $(OBJECTS) $(USB_OBJECTS) \
$(LDFLAGS) -Xlinker \

2
README.md
View File

@ -26,6 +26,8 @@ With OpenOCD running, arm-none-eabi-gdb can be used to load code and debug.
## Contributors
- [Ethan Zonca](https://github.com/normaldotcom) - Makefile fixes and code size optimization
- [onejope](https://github.com/onejope) - Fixes to extended ID handling
- Phil Wise - Added dfu-util compatibility to Makefile
## License

94
Src/can.c
View File

@ -3,6 +3,7 @@
CAN_HandleTypeDef hcan;
CAN_FilterConfTypeDef filter;
uint32_t prescaler;
enum can_bus_state bus_state;
void can_init(void) {
@ -19,60 +20,89 @@ void can_init(void) {
filter.BankNumber = 0;
filter.FilterActivation = ENABLE;
// default to 125 kbit/s
prescaler = 48;
hcan.Instance = CAN;
hcan.Init.Prescaler = 48;
hcan.Init.Mode = CAN_MODE_NORMAL;
hcan.Init.SJW = CAN_SJW_1TQ;
hcan.Init.BS1 = CAN_BS1_4TQ;
hcan.Init.BS2 = CAN_BS2_3TQ;
hcan.Init.TTCM = DISABLE;
hcan.Init.ABOM = DISABLE;
hcan.Init.AWUM = DISABLE;
hcan.Init.NART = DISABLE;
hcan.Init.RFLM = DISABLE;
hcan.Init.TXFP = DISABLE;
bus_state = OFF_BUS;
//status = HAL_CAN_Init(&hcan);
}
void can_enable(void) {
uint32_t status;
if (bus_state == OFF_BUS) {
hcan.Init.Prescaler = prescaler;
hcan.Init.Mode = CAN_MODE_NORMAL;
hcan.pTxMsg = NULL;
status = HAL_CAN_Init(&hcan);
status = HAL_CAN_ConfigFilter(&hcan, &filter);
bus_state = ON_BUS;
hcan.Init.SJW = CAN_SJW_1TQ;
hcan.Init.BS1 = CAN_BS1_4TQ;
hcan.Init.BS2 = CAN_BS2_3TQ;
hcan.Init.TTCM = DISABLE;
hcan.Init.ABOM = DISABLE;
hcan.Init.AWUM = DISABLE;
hcan.Init.NART = DISABLE;
hcan.Init.RFLM = DISABLE;
hcan.Init.TXFP = DISABLE;
hcan.pTxMsg = NULL;
status = HAL_CAN_Init(&hcan);
status = HAL_CAN_ConfigFilter(&hcan, &filter);
bus_state = ON_BUS;
}
}
void can_disable(void) {
uint32_t status;
if (bus_state == ON_BUS) {
// do a bxCAN reset (set RESET bit to 1)
hcan.Instance->MCR |= CAN_MCR_RESET;
bus_state = OFF_BUS;
// do a bxCAN reset (set RESET bit to 1)
hcan.Instance->MCR |= CAN_MCR_RESET;
bus_state = OFF_BUS;
}
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_RESET);
}
void can_set_bitrate(enum can_bitrate bitrate) {
if (bus_state == ON_BUS) {
// cannot set bitrate while on bus
return;
// cannot set bitrate while on bus
return;
}
switch (bitrate) {
case CAN_BITRATE_500K:
hcan.Init.Prescaler = 12;
break;
case CAN_BITRATE_250K:
hcan.Init.Prescaler = 24;
break;
case CAN_BITRATE_125K:
hcan.Init.Prescaler = 48;
break;
case CAN_BITRATE_10K:
prescaler = 600;
break;
case CAN_BITRATE_20K:
prescaler = 300;
break;
case CAN_BITRATE_50K:
prescaler = 120;
break;
case CAN_BITRATE_100K:
prescaler = 60;
break;
case CAN_BITRATE_125K:
prescaler = 48;
break;
case CAN_BITRATE_250K:
prescaler = 24;
break;
case CAN_BITRATE_500K:
prescaler = 12;
break;
case CAN_BITRATE_750K:
prescaler = 8;
break;
case CAN_BITRATE_1000K:
prescaler = 6;
break;
}
}
void can_set_silent(uint8_t silent) {
if (bus_state == ON_BUS) {
// cannot set silent mode while on bus
return;
}
if (silent) {
hcan.Init.Mode = CAN_MODE_SILENT;
} else {
hcan.Init.Mode = CAN_MODE_NORMAL;
}
}
@ -100,7 +130,7 @@ uint32_t can_rx(CanRxMsgTypeDef *rx_msg, uint32_t timeout) {
uint8_t is_can_msg_pending(uint8_t fifo) {
if (bus_state == OFF_BUS) {
return 0;
return 0;
}
return (__HAL_CAN_MSG_PENDING(&hcan, fifo) > 0);
}

83
Src/slcan.c
View File

@ -80,33 +80,67 @@ int8_t slcan_parse_str(char *buf, uint8_t len) {
// open channel command
can_enable();
return 0;
} else if (buf[0] == 'C') {
// close channel command
can_disable();
return 0;
} else if (buf[0] == 'S') {
// set bitrate command
switch(buf[1]) {
case 0:
can_set_bitrate(CAN_BITRATE_125K);
break;
case 1:
can_set_bitrate(CAN_BITRATE_250K);
break;
case 2:
can_set_bitrate(CAN_BITRATE_500K);
break;
default:
// invalid setting
return -1;
case 0:
can_set_bitrate(CAN_BITRATE_10K);
break;
case 1:
can_set_bitrate(CAN_BITRATE_20K);
break;
case 2:
can_set_bitrate(CAN_BITRATE_50K);
break;
case 3:
can_set_bitrate(CAN_BITRATE_100K);
break;
case 4:
can_set_bitrate(CAN_BITRATE_125K);
break;
case 5:
can_set_bitrate(CAN_BITRATE_250K);
break;
case 6:
can_set_bitrate(CAN_BITRATE_500K);
break;
case 7:
can_set_bitrate(CAN_BITRATE_750K);
break;
case 8:
can_set_bitrate(CAN_BITRATE_1000K);
break;
default:
// invalid setting
return -1;
}
return 0;
} else if (buf[0] == 'm' || buf[0] == 'M') {
// set mode command
if (buf[1] == 1) {
// mode 1: silent
can_set_silent(1);
} else {
// default to normal mode
can_set_silent(0);
}
return 0;
} else if (buf[0] == 't' || buf[0] == 'T') {
// transmit data frame command
frame.RTR = CAN_RTR_DATA;
} else if (buf[0] == 'r' || buf[0] == 'R') {
frame.RTR = CAN_RTR_REMOTE;
// transmit remote frame command
frame.RTR = CAN_RTR_REMOTE;
} else {
// error, unknown command
return -1;
@ -121,14 +155,25 @@ int8_t slcan_parse_str(char *buf, uint8_t len) {
return -1;
}
uint8_t id_len = frame.IDE == CAN_ID_EXT ? SLCAN_EXT_ID_LEN : SLCAN_STD_ID_LEN;
frame.StdId = 0;
i = 1;
while (i <= id_len) {
frame.StdId += buf[i++];
frame.StdId *= 16;
frame.ExtId = 0;
if (frame.IDE == CAN_ID_EXT) {
uint8_t id_len = SLCAN_EXT_ID_LEN;
i = 1;
while (i <= id_len) {
frame.ExtId *= 16;
frame.ExtId += buf[i++];
}
}
frame.StdId /= 16;
else {
uint8_t id_len = SLCAN_STD_ID_LEN;
i = 1;
while (i <= id_len) {
frame.StdId *= 16;
frame.StdId += buf[i++];
}
}
frame.DLC = buf[i++];
if (frame.DLC < 0 || frame.DLC > 8) {

6
Src/stm32f0xx_hal_msp.c
View File

@ -81,12 +81,6 @@ void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan)
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN CAN_MspInit 1 */
GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
GPIO_InitStruct.Alternate = 0;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE END CAN_MspInit 1 */
}

64
windows-driver/cantact.inf Normal file
View File

@ -0,0 +1,64 @@
; Windows CANtact CDC ACM Setup File
; Copyright (c) 2000 Microsoft Corporation
[DefaultInstall]
CopyINF="cantact.inf"
[Version]
Signature="$Windows NT$"
Class=Ports
ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
Provider=%MFGNAME%
DriverVer=7/1/2012,10.0.0.0
[Manufacturer]
%MFGNAME%=DeviceList, NTx86, NTamd64, NTia64
[SourceDisksNames]
[SourceDisksFiles]
[DestinationDirs]
DefaultDestDir=12
[DriverInstall]
Include=mdmcpq.inf
CopyFiles=FakeModemCopyFileSection
AddReg=DriverInstall.AddReg
[DriverInstall.Services]
Include=mdmcpq.inf
AddService=usbser, 0x00000002, LowerFilter_Service_Inst
[DriverInstall.AddReg]
HKR,,EnumPropPages32,,"msports.dll,SerialPortPropPageProvider"
;------------------------------------------------------------------------------
; Vendor and Product ID Definitions
;------------------------------------------------------------------------------
; When developing your USB device, the VID and PID used in the PC side
; application program and the firmware on the microcontroller must match.
; Modify the below line to use your VID and PID. Use the format as shown below.
; Note: One INF file can be used for multiple devices with different VID and PIDs.
; For each supported device, append ",USB\VID_xxxx&PID_yyyy" to the end of the line.
;------------------------------------------------------------------------------
[DeviceList]
%DESCRIPTION%=DriverInstall, USB\VID_AD50&PID_60C4
[DeviceList.NTx86]
%DESCRIPTION%=DriverInstall, USB\VID_AD50&PID_60C4
[DeviceList.NTamd64]
%DESCRIPTION%=DriverInstall, USB\VID_AD50&PID_60C4
[DeviceList.NTia64]
%DESCRIPTION%=DriverInstall, USB\VID_AD50&PID_60C4
;------------------------------------------------------------------------------
; String Definitions
;------------------------------------------------------------------------------
;Modify these strings to customize your device
;------------------------------------------------------------------------------
[Strings]
MFGNAME="http://www.cantact.io"
DESCRIPTION="CANtact USB/CAN Device"