diff options
| -rw-r--r-- | ports/stm32/boards/STM32F429DISC/mpconfigboard.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ports/stm32/boards/STM32F429DISC/mpconfigboard.h b/ports/stm32/boards/STM32F429DISC/mpconfigboard.h index 5d9287242..92e8ca411 100644 --- a/ports/stm32/boards/STM32F429DISC/mpconfigboard.h +++ b/ports/stm32/boards/STM32F429DISC/mpconfigboard.h @@ -100,6 +100,7 @@ #define MICROPY_HW_SDRAM_BURST_LENGTH 2 #define MICROPY_HW_SDRAM_CAS_LATENCY 3 +#define MICROPY_HW_SDRAM_FREQUENCY_KHZ (90000) // 90 MHz #define MICROPY_HW_SDRAM_COLUMN_BITS_NUM 8 #define MICROPY_HW_SDRAM_ROW_BITS_NUM 12 #define MICROPY_HW_SDRAM_MEM_BUS_WIDTH 16 @@ -109,6 +110,7 @@ #define MICROPY_HW_SDRAM_RBURST (0) #define MICROPY_HW_SDRAM_WRITE_PROTECTION (0) #define MICROPY_HW_SDRAM_AUTOREFRESH_NUM (4) +#define MICROPY_HW_SDRAM_REFRESH_CYCLES 8192 #define MICROPY_HW_FMC_SDCKE1 (pin_B5) #define MICROPY_HW_FMC_SDNE1 (pin_B6) |