diff options
| -rw-r--r-- | ports/stm32/i2c.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/ports/stm32/i2c.c b/ports/stm32/i2c.c index f072a75b8..e17472cb4 100644 --- a/ports/stm32/i2c.c +++ b/ports/stm32/i2c.c @@ -131,9 +131,9 @@ const pyb_i2c_obj_t pyb_i2c_obj[] = { #endif }; -#if defined(STM32F7) || defined(STM32L4) +#if defined(STM32F7) || defined(STM32L4) || defined(STM32H7) -// The STM32F0, F3, F7 and L4 use a TIMINGR register rather than ClockSpeed and +// The STM32F0, F3, F7, H7 and L4 use a TIMINGR register rather than ClockSpeed and // DutyCycle. #if defined(STM32F746xx) @@ -161,6 +161,17 @@ const pyb_i2c_obj_t pyb_i2c_obj[] = { #define MICROPY_HW_I2C_BAUDRATE_DEFAULT (PYB_I2C_SPEED_FULL) #define MICROPY_HW_I2C_BAUDRATE_MAX (PYB_I2C_SPEED_FAST) +#elif defined(STM32H7) + +// I2C TIMINGs obtained from the STHAL examples. +#define MICROPY_HW_I2C_BAUDRATE_TIMING { \ + {PYB_I2C_SPEED_STANDARD, 0x40604E73}, \ + {PYB_I2C_SPEED_FULL, 0x00901954}, \ + {PYB_I2C_SPEED_FAST, 0x10810915}, \ + } +#define MICROPY_HW_I2C_BAUDRATE_DEFAULT (PYB_I2C_SPEED_FULL) +#define MICROPY_HW_I2C_BAUDRATE_MAX (PYB_I2C_SPEED_FAST) + #elif defined(STM32L4) // The value 0x90112626 was obtained from the DISCOVERY_I2C1_TIMING constant |