diff options
| -rw-r--r-- | ports/stm32/sdram.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ports/stm32/sdram.c b/ports/stm32/sdram.c index b0a3ef215..1e1a08e4c 100644 --- a/ports/stm32/sdram.c +++ b/ports/stm32/sdram.c @@ -34,12 +34,20 @@ #if defined(MICROPY_HW_FMC_SDCKE0) && defined(MICROPY_HW_FMC_SDNE0) #define FMC_SDRAM_BANK FMC_SDRAM_BANK1 #define FMC_SDRAM_CMD_TARGET_BANK FMC_SDRAM_CMD_TARGET_BANK1 +#if MICROPY_HW_FMC_SWAP_BANKS +#define SDRAM_START_ADDRESS 0x60000000 +#else #define SDRAM_START_ADDRESS 0xC0000000 +#endif #elif defined(MICROPY_HW_FMC_SDCKE1) && defined(MICROPY_HW_FMC_SDNE1) #define FMC_SDRAM_BANK FMC_SDRAM_BANK2 #define FMC_SDRAM_CMD_TARGET_BANK FMC_SDRAM_CMD_TARGET_BANK2 +#if MICROPY_HW_FMC_SWAP_BANKS +#define SDRAM_START_ADDRESS 0x70000000 +#else #define SDRAM_START_ADDRESS 0xD0000000 #endif +#endif // Provides the MPU_REGION_SIZE_X value when passed the size of region in bytes // "m" must be a power of 2 between 32 and 4G (2**5 and 2**32) and this formula @@ -59,6 +67,10 @@ bool sdram_init(void) { __HAL_RCC_FMC_CLK_ENABLE(); + #if MICROPY_HW_FMC_SWAP_BANKS + HAL_SetFMCMemorySwappingConfig(FMC_SWAPBMAP_SDRAM_SRAM); + #endif + #if defined(MICROPY_HW_FMC_SDCKE0) mp_hal_pin_config_alt_static_speed(MICROPY_HW_FMC_SDCKE0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_FMC_SDCKE0); mp_hal_pin_config_alt_static_speed(MICROPY_HW_FMC_SDNE0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_FMC_SDNE0); |