#define MICROPY_HW_BOARD_NAME "F7DISC" #define MICROPY_HW_MCU_NAME "STM32F746" #define MICROPY_HW_HAS_SWITCH (1) #define MICROPY_HW_HAS_FLASH (1) #define MICROPY_HW_ENABLE_RNG (1) #define MICROPY_HW_ENABLE_RTC (1) #define MICROPY_HW_ENABLE_USB (1) #define MICROPY_HW_ENABLE_SDCARD (1) #define MICROPY_BOARD_EARLY_INIT STM32F7DISC_board_early_init void STM32F7DISC_board_early_init(void); // HSE is 25MHz // VCOClock = HSE * PLLN / PLLM = 25 MHz * 384 / 25 = 384 MHz // SYSCLK = VCOClock / PLLP = 384 MHz / 2 = 192 MHz // USB/SDMMC/RNG Clock = VCOClock / PLLQ = 384 MHz / 8 = 48 MHz // Note: SDRAM requires SYSCLK <= 200MHz // SYSCLK can be increased to 216MHz if SDRAM is disabled #define MICROPY_HW_CLK_PLLM (25) #define MICROPY_HW_CLK_PLLN (384) #define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV2) #define MICROPY_HW_CLK_PLLQ (8) // From the reference manual, for 2.7V to 3.6V // 151-180 MHz => 5 wait states // 181-210 MHz => 6 wait states // 211-216 MHz => 7 wait states #define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_6 // 181-210 MHz => 6 wait states // UART config #define MICROPY_HW_UART1_TX (pin_A9) #define MICROPY_HW_UART1_RX (pin_B7) #define MICROPY_HW_UART6_TX (pin_C6) #define MICROPY_HW_UART6_RX (pin_C7) #define MICROPY_HW_UART7_TX (pin_F6) #define MICROPY_HW_UART7_RX (pin_F7) #define MICROPY_HW_UART_REPL PYB_UART_1 #define MICROPY_HW_UART_REPL_BAUD 115200 // I2C busses #define MICROPY_HW_I2C1_SCL (pin_B8) #define MICROPY_HW_I2C1_SDA (pin_B9) #define MICROPY_HW_I2C3_SCL (pin_H7) #define MICROPY_HW_I2C3_SDA (pin_H8) // SPI #define MICROPY_HW_SPI2_NSS (pin_I0) #define MICROPY_HW_SPI2_SCK (pin_I1) #define MICROPY_HW_SPI2_MISO (pin_B14) #define MICROPY_HW_SPI2_MOSI (pin_B15) // CAN busses #define MICROPY_HW_CAN1_TX (pin_B9) #define MICROPY_HW_CAN1_RX (pin_B8) #define MICROPY_HW_CAN2_TX (pin_B13) #define MICROPY_HW_CAN2_RX (pin_B12) // USRSW is pulled low. Pressing the button makes the input go high. #define MICROPY_HW_USRSW_PIN (pin_I11) #define MICROPY_HW_USRSW_PULL (GPIO_NOPULL) #define MICROPY_HW_USRSW_EXTI_MODE (GPIO_MODE_IT_RISING) #define MICROPY_HW_USRSW_PRESSED (1) // LEDs #define MICROPY_HW_LED1 (pin_I1) // green #define MICROPY_HW_LED_ON(pin) (mp_hal_pin_high(pin)) #define MICROPY_HW_LED_OFF(pin) (mp_hal_pin_low(pin)) // SD card detect switch #define MICROPY_HW_SDCARD_DETECT_PIN (pin_C13) #define MICROPY_HW_SDCARD_DETECT_PULL (GPIO_PULLUP) #define MICROPY_HW_SDCARD_DETECT_PRESENT (GPIO_PIN_RESET) // USB config (CN13 - USB OTG FS) // The Hardware VBUS detect only works on pin PA9. The STM32F7 Discovery uses // PA9 for VCP_TX functionality and connects the VBUS to pin J12 (so software // only detect). So we don't define the VBUS detect pin since that requires PA9. #define MICROPY_HW_USB_FS (1) /*#define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_J12)*/ #define MICROPY_HW_USB_OTG_ID_PIN (pin_A10) // Ethernet via RMII #define MICROPY_HW_ETH_MDC (pin_C1) #define MICROPY_HW_ETH_MDIO (pin_A2) #define MICROPY_HW_ETH_RMII_REF_CLK (pin_A1) #define MICROPY_HW_ETH_RMII_CRS_DV (pin_A7) #define MICROPY_HW_ETH_RMII_RXD0 (pin_C4) #define MICROPY_HW_ETH_RMII_RXD1 (pin_C5) #define MICROPY_HW_ETH_RMII_RXER (pin_G2) #define MICROPY_HW_ETH_RMII_TX_EN (pin_G11) #define MICROPY_HW_ETH_RMII_TXD0 (pin_G13) #define MICROPY_HW_ETH_RMII_TXD1 (pin_G14) // SDRAM #define MICROPY_HW_SDRAM_SIZE (64 / 8 * 1024 * 1024) // 64 Mbit #define MICROPY_HW_SDRAM_STARTUP_TEST (1) #define MICROPY_HEAP_START sdram_start() #define MICROPY_HEAP_END sdram_end() // 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_BURST_LENGTH 1 #define MICROPY_HW_SDRAM_CAS_LATENCY 2 #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 0 #define MICROPY_HW_SDRAM_RBURST (1) #define MICROPY_HW_SDRAM_WRITE_PROTECTION (0) #define MICROPY_HW_SDRAM_AUTOREFRESH_NUM (8) #define MICROPY_HW_FMC_SDCKE0 (pin_C3) #define MICROPY_HW_FMC_SDNE0 (pin_H3) #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_H5) #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)