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This commit is contained in:
Martin Budden 2016-07-09 14:39:39 +01:00
parent adfa6c4f28
commit ea283ab98c
63 changed files with 297 additions and 297 deletions
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42
src/main/drivers/bus_i2c_stm32f10x.c
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@ -133,7 +133,7 @@ static bool i2cHandleHardwareFailure(I2CDevice device)
bool i2cWriteBuffer(I2CDevice device, uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *data)
{
if (device == I2CINVALID)
return false;
@ -141,10 +141,10 @@ bool i2cWriteBuffer(I2CDevice device, uint8_t addr_, uint8_t reg_, uint8_t len_,
I2C_TypeDef *I2Cx;
I2Cx = i2cHardwareMap[device].dev;
i2cState_t *state;
state = &(i2cState[device]);
state->addr = addr_ << 1;
state->reg = reg_;
state->writing = 1;
@ -182,12 +182,12 @@ bool i2cRead(I2CDevice device, uint8_t addr_, uint8_t reg_, uint8_t len, uint8_t
{
if (device == I2CINVALID)
return false;
uint32_t timeout = I2C_DEFAULT_TIMEOUT;
I2C_TypeDef *I2Cx;
I2Cx = i2cHardwareMap[device].dev;
i2cState_t *state;
state = &(i2cState[device]);
@ -220,13 +220,13 @@ bool i2cRead(I2CDevice device, uint8_t addr_, uint8_t reg_, uint8_t len, uint8_t
}
static void i2c_er_handler(I2CDevice device) {
I2C_TypeDef *I2Cx;
I2Cx = i2cHardwareMap[device].dev;
i2cState_t *state;
state = &(i2cState[device]);
// Read the I2C1 status register
volatile uint32_t SR1Register = I2Cx->SR1;
@ -255,13 +255,13 @@ static void i2c_er_handler(I2CDevice device) {
}
void i2c_ev_handler(I2CDevice device) {
I2C_TypeDef *I2Cx;
I2Cx = i2cHardwareMap[device].dev;
i2cState_t *state;
state = &(i2cState[device]);
static uint8_t subaddress_sent, final_stop; // flag to indicate if subaddess sent, flag to indicate final bus condition
static int8_t index; // index is signed -1 == send the subaddress
uint8_t SReg_1 = I2Cx->SR1; // read the status register here
@ -384,17 +384,17 @@ void i2cInit(I2CDevice device)
IO_t scl = IOGetByTag(i2c->scl);
IO_t sda = IOGetByTag(i2c->sda);
IOInit(scl, OWNER_I2C, RESOURCE_I2C_SCL, RESOURCE_INDEX(device));
IOInit(sda, OWNER_I2C, RESOURCE_I2C_SDA, RESOURCE_INDEX(device));
IOInit(scl, OWNER_I2C, RESOURCE_I2C_SCL, RESOURCE_INDEX(device));
IOInit(sda, OWNER_I2C, RESOURCE_I2C_SDA, RESOURCE_INDEX(device));
// Enable RCC
RCC_ClockCmd(i2c->rcc, ENABLE);
I2C_ITConfig(i2c->dev, I2C_IT_EVT | I2C_IT_ERR, DISABLE);
i2cUnstick(scl, sda);
// Init pins
#ifdef STM32F4
IOConfigGPIOAF(scl, IOCFG_I2C, GPIO_AF_I2C);
@ -403,10 +403,10 @@ void i2cInit(I2CDevice device)
IOConfigGPIO(scl, IOCFG_AF_OD);
IOConfigGPIO(sda, IOCFG_AF_OD);
#endif
I2C_DeInit(i2c->dev);
I2C_StructInit(&i2cInit);
I2C_ITConfig(i2c->dev, I2C_IT_EVT | I2C_IT_ERR, DISABLE); // Disable EVT and ERR interrupts - they are enabled by the first request
i2cInit.I2C_Mode = I2C_Mode_I2C;
i2cInit.I2C_DutyCycle = I2C_DutyCycle_2;
@ -424,8 +424,8 @@ void i2cInit(I2CDevice device)
I2C_Init(i2c->dev, &i2cInit);
I2C_StretchClockCmd(i2c->dev, ENABLE);
// I2C ER Interrupt
nvic.NVIC_IRQChannel = i2c->er_irq;
nvic.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_I2C_ER);