diff options
Diffstat (limited to 'ports/stm32/i2c.c')
| -rw-r--r-- | ports/stm32/i2c.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/ports/stm32/i2c.c b/ports/stm32/i2c.c index 2460a36cb..46b55f940 100644 --- a/ports/stm32/i2c.c +++ b/ports/stm32/i2c.c @@ -271,12 +271,12 @@ int i2c_write(i2c_t *i2c, const uint8_t *src, size_t len, size_t next_len) { return num_acks; } -#elif defined(STM32F0) || defined(STM32F7) || defined(STM32G4) || defined(STM32H7) || defined(STM32L4) +#elif defined(STM32F0) || defined(STM32F7) || defined(STM32G4) || defined(STM32H7) || defined(STM32L4) || defined(STM32U5) #if defined(STM32H7) #define APB1ENR APB1LENR #define RCC_APB1ENR_I2C1EN RCC_APB1LENR_I2C1EN -#elif defined(STM32G4) || defined(STM32L4) +#elif defined(STM32G4) || defined(STM32L4) || defined(STM32U5) #define APB1ENR APB1ENR1 #define RCC_APB1ENR_I2C1EN RCC_APB1ENR1_I2C1EN #endif @@ -337,6 +337,16 @@ int i2c_init(i2c_t *i2c, mp_hal_pin_obj_t scl, mp_hal_pin_obj_t sda, uint32_t fr } else { return -MP_EINVAL; } + #elif defined(STM32U5) + if (freq >= 1000000) { + i2c->TIMINGR = 0x30909DEC; + } else if (freq >= 400000) { + i2c->TIMINGR = 0x00F07BFF; + } else if (freq >= 100000) { + i2c->TIMINGR = 0x00701F6B; + } else { + return -MP_EINVAL; + } #else // These timing values are for f_I2CCLK=54MHz and are only approximate if (freq >= 1000000) { @@ -512,7 +522,7 @@ int i2c_write(i2c_t *i2c, const uint8_t *src, size_t len, size_t next_len) { #endif -#if defined(STM32F0) || defined(STM32F4) || defined(STM32F7) || defined(STM32H7) +#if defined(STM32F0) || defined(STM32F4) || defined(STM32F7) || defined(STM32H7) || defined(STM32U5) int i2c_readfrom(i2c_t *i2c, uint16_t addr, uint8_t *dest, size_t len, bool stop) { int ret; |