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) |
__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);