diff options
Diffstat (limited to 'drivers/arm')
| -rw-r--r-- | drivers/arm/i2c_master.c | 12 | ||||
| -rw-r--r-- | drivers/arm/i2c_master.h | 1 |
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/arm/i2c_master.c b/drivers/arm/i2c_master.c index de58438392..ab962ea959 100644 --- a/drivers/arm/i2c_master.c +++ b/drivers/arm/i2c_master.c @@ -32,7 +32,7 @@ static uint8_t i2c_address; -// This configures the I2C clock to 400Mhz assuming a 72Mhz clock +// This configures the I2C clock to 400khz assuming a 72Mhz clock // For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html static const I2CConfig i2cconfig = { STM32_TIMINGR_PRESC(15U) | @@ -45,10 +45,14 @@ static const I2CConfig i2cconfig = { __attribute__ ((weak)) void i2c_init(void) { - setPinInput(B6); // Try releasing special pins for a short time - setPinInput(B7); - chThdSleepMilliseconds(10); + //palSetGroupMode(GPIOB, GPIOB_PIN6 | GPIOB_PIN7, 0, PAL_MODE_INPUT); + + // Try releasing special pins for a short time + palSetPadMode(GPIOB, 6, PAL_MODE_INPUT); + palSetPadMode(GPIOB, 7, PAL_MODE_INPUT); + chThdSleepMilliseconds(10); + palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP); palSetPadMode(GPIOB, 7, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP); diff --git a/drivers/arm/i2c_master.h b/drivers/arm/i2c_master.h index 591fa7f77d..392760328f 100644 --- a/drivers/arm/i2c_master.h +++ b/drivers/arm/i2c_master.h @@ -34,6 +34,7 @@ void i2c_init(void); uint8_t i2c_start(uint8_t address); uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); +uint8_t i2c_transmit_receive(uint8_t address, uint8_t * tx_body, uint16_t tx_length, uint8_t * rx_body, uint16_t rx_length); uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); uint8_t i2c_readReg(uint8_t devaddr, uint8_t* regaddr, uint8_t* data, uint16_t length, uint16_t timeout); uint8_t i2c_stop(uint16_t timeout); |