10000 stm32: add sdram support by andrewleech · Pull Request #3940 · micropython/micropython · GitHub
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stm32: add sdram support #3940

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stm32: add sdram support #3940

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6244b29
stm32/sdram: cherry pick openmv sdram driver from https://github.com/…
pi-anl Jul 10, 2018
e8200b7
stm32/sdram: Add SDRAM driver for stm32
pi-anl Jul 17, 2018
a03fecc
stm32/sdram: On stm32f7, enable MPU on external ram to fix hard-fault…
pi-anl Jul 17, 2018
f8f9680
stm32/sdram: Enable onboard SDRAM for STM32F429DISC target
pi-anl Jul 17, 2018
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8 changes: 8 additions & 0 deletions ports/stm32/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -253,6 +253,7 @@ SRC_C = \
spibdev.c \
storage.c \
sdcard.c \
sdram.c \
fatfs_port.c \
lcd.c \
accel.c \
Expand Down Expand Up @@ -305,10 +306,17 @@ ifeq ($(MCU_SERIES),$(filter $(MCU_SERIES),f4 f7 h7 l4))
SRC_HAL += $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_,\
hal_sd.c \
ll_sdmmc.c \
ll_fmc.c \
ll_usb.c \
)
endif

ifeq ($(MCU_SERIES),$(filter $(MCU_SERIES),f4 f7 h7))
SRC_HAL += $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_,\
hal_sdram.c \
)
endif

ifeq ($(CMSIS_MCU),$(filter $(CMSIS_MCU),STM32H743xx))
SRC_HAL += $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_, hal_fdcan.c)
else
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63 changes: 63 additions & 0 deletions ports/stm32/boards/STM32F429DISC/mpconfigboard.h
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Expand Up @@ -72,3 +72,66 @@
#define MICROPY_HW_USB_HS_IN_FS (1)
#define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_B13)
#define MICROPY_HW_USB_OTG_ID_PIN (pin_B12)

// SDRAM
#define MICROPY_HW_SDRAM_SIZE (64 / 8 * 1024 * 1024) // 64 Mbit
#define MICROPY_HW_SDRAM_STARTUP_TEST (1)

/* Timing configuration for 90 Mhz (11.90ns) of SD clock frequency (180Mhz/2) */
#define MICROPY_HW_SDRAM_TIMING_TMRD 2
#define MICROPY_HW_SDRAM_TIMING_TXSR 7
#define MICROPY_HW_SDRAM_TIMING_TRAS 4
#define MICROPY_HW_SDRAM_TIMING_TRC 7
#define MICROPY_HW_SDRAM_TIMING_TWR 2
#define MICROPY_HW_SDRAM_TIMING_TRP 2
#define MICROPY_HW_SDRAM_TIMING_TRCD 2
#define MICROPY_HW_SDRAM_REFRESH_RATE 64 /* ms */

#define MICROPY_HW_SDRAM_CAS_LATENCY 3
#define MICROPY_HW_SDRAM_COLUMN_BITS_NUM 8
#define MICROPY_HW_SDRAM_ROW_BITS_NUM 12
#define MICROPY_HW_SDRAM_MEM_BUS_WIDTH 16
#define MICROPY_HW_SDRAM_INTERN_BANKS_NUM 4
#define MICROPY_HW_SDRAM_CLOCK_PERIOD 2
#define MICROPY_HW_SDRAM_RPIPE_DELAY 1
#define MICROPY_HW_SDRAM_RBURST (0)
#define MICROPY_HW_SDRAM_WRITE_PROTECTION (0)

#define MICROPY_HW_FMC_SDCKE1 (pin_B5)
#define MICROPY_HW_FMC_SDNE1 (pin_B6)
#define MICROPY_HW_FMC_SDCLK (pin_G8)
#define MICROPY_HW_FMC_SDNCAS (pin_G15)
#define MICROPY_HW_FMC_SDNRAS (pin_F11)
#define MICROPY_HW_FMC_SDNWE (pin_C0)
#define MICROPY_HW_FMC_BA0 (pin_G4)
#define MICROPY_HW_FMC_BA1 (pin_G5)
#define MICROPY_HW_FMC_NBL0 (pin_E0)
#define MICROPY_HW_FMC_NBL1 (pin_E1)
#define MICROPY_HW_FMC_A0 (pin_F0)
#define MICROPY_HW_FMC_A1 (pin_F1)
#define MICROPY_HW_FMC_A2 (pin_F2)
#define MICROPY_HW_FMC_A3 (pin_F3)
#define MICROPY_HW_FMC_A4 (pin_F4)
#define MICROPY_HW_FMC_A5 (pin_F5)
#define MICROPY_HW_FMC_A6 (pin_F12)
#define MICROPY_HW_FMC_A7 (pin_F13)
#define MICROPY_HW_FMC_A8 (pin_F14)
#define MICROPY_HW_FMC_A9 (pin_F15)
#define MICROPY_HW_FMC_A10 (pin_G0)
#define MICROPY_HW_FMC_A11 (pin_G1)
#define MICROPY_HW_FMC_D0 (pin_D14)
#define MICROPY_HW_FMC_D1 (pin_D15)
#define MICROPY_HW_FMC_D2 (pin_D0)
#define MICROPY_HW_FMC_D3 (pin_D1)
#define MICROPY_HW_FMC_D4 (pin_E7)
#define MICROPY_HW_FMC_D5 (pin_E8)
#define MICROPY_HW_FMC_D6 (pin_E9)
#define MICROPY_HW_FMC_D7 (pin_E10)
#define MICROPY_HW_FMC_D8 (pin_E11)
#define MICROPY_HW_FMC_D9 (pin_E12)
#define MICROPY_HW_FMC_D10 (pin_E13)
#define MICROPY_HW_FMC_D11 (pin_E14)
#define MICROPY_HW_FMC_D12 (pin_E15)
#define MICROPY_HW_FMC_D13 (pin_D8)
#define MICROPY_HW_FMC_D14 (pin_D9)
#define MICROPY_HW_FMC_D15 (pin_D10)
2 changes: 1 addition & 1 deletion ports/stm32/boards/STM32F429DISC/stm32f4xx_hal_conf.h
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Expand Up @@ -65,7 +65,7 @@
/* #define HAL_NOR_MODULE_ENABLED */
/* #define HAL_PCCARD_MODULE_ENABLED */
/* #define HAL_SRAM_MODULE_ENABLED */
/* #define HAL_SDRAM_MODULE_ENABLED */
#define HAL_SDRAM_MODULE_ENABLED
/* #define HAL_HASH_MODULE_ENABLED */
#define HAL_GPIO_MODULE_ENABLED
#define HAL_I2C_MODULE_ENABLED
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10 changes: 10 additions & 0 deletions ports/stm32/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@
#include "rtc.h"
#include "storage.h"
#include "sdcard.h"
#include "sdram.h"
#include "rng.h"
#include "accel.h"
#include "servo.h"
Expand Down Expand Up @@ -555,7 +556,16 @@ void stm32_main(uint32_t reset_mode) {
mp_stack_set_limit((char*)&_estack - (char*)&_heap_end - 1024);

// GC init
#if MICROPY_HW_SDRAM_SIZE
sdram_init();
#if MICROPY_HW_SDRAM_STARTUP_TEST
sdram_test(true);
#endif

gc_init(sdram_start(), sdram_end());
#else
gc_init(&_heap_start, &_heap_end);
#endif

#if MICROPY_ENABLE_PYSTACK
static mp_obj_t pystack[384];
Expand Down
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