add button pin and clock init for USB support

Author: snkYmkrct

ports/stm/boards/daisy_seed_with_sdram/mpconfigboard.h

@@ -31,8 +31,6 @@
 
 #define MICROPY_HW_LED_STATUS (&pin_PC07)
 
-// #define FLASH_PAGE_SIZE             (0x4000) // 256B for this flash
-
 // H7 and F7 MPU definitions
 #define CPY_FLASH_REGION_SIZE   ARM_MPU_REGION_SIZE_8MB
 #define CPY_ITCM_REGION_SIZE    ARM_MPU_REGION_SIZE_64KB
@@ -42,9 +40,14 @@
 #define CPY_SRAM_START_ADDR     0x24000000
 
 #define HSE_VALUE ((uint32_t)16000000)
-#define LSE_VALUE ((uint32_t)32768)
 #define BOARD_HSE_SOURCE (RCC_HSE_ON) // use external oscillator
 #define BOARD_HAS_LOW_SPEED_CRYSTAL (0)
 
 #define CIRCUITPY_CONSOLE_UART_TX (&pin_PB09)
-#define CIRCUITPY_CONSOLE_UART_RX (&pin_PB08)
+#define CIRCUITPY_CONSOLE_UART_RX (&pin_PB08)
+
+// USB
+#define BOARD_NO_USB_OTG_ID_SENSE (1)
+
+// for RNG not audio
+#define CPY_CLK_USB_USES_AUDIOPLL (1)

ports/stm/boards/daisy_seed_with_sdram/pins.c

@@ -2,5 +2,6 @@
 
 static const mp_rom_map_elem_t board_module_globals_table[] = {
     {MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_PC07)},
+    {MP_ROM_QSTR(MP_QSTR_BOOT), MP_ROM_PTR(&pin_PG03)},
 };
 MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/stm/peripherals/stm32h7/clocks.c

@@ -92,8 +92,28 @@ void stm32_peripherals_clocks_init(void) {
     #else
     PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL;
     #endif
-    HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
-
+    #ifdef STM32H750xx
+    // USB
+    PeriphClkInitStruct.PLL3.PLL3M = 1;
+    PeriphClkInitStruct.PLL3.PLL3N = 12;
+    PeriphClkInitStruct.PLL3.PLL3P = 2;
+    PeriphClkInitStruct.PLL3.PLL3Q = 4;
+    PeriphClkInitStruct.PLL3.PLL3R = 2;
+    PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_3;
+    PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
+    PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
+    // RNG
+    PeriphClkInitStruct.PeriphClockSelection = PeriphClkInitStruct.PeriphClockSelection | RCC_PERIPHCLK_RNG;
+    PeriphClkInitStruct.RngClockSelection = RCC_RNGCLKSOURCE_HSI48;
+    // RTC
+    PeriphClkInitStruct.PeriphClockSelection = PeriphClkInitStruct.PeriphClockSelection | RCC_PERIPHCLK_RTC;
+    PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
+    #endif
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) {
+        while (1) {
+            ;
+        }
+    }
     // Enable USB Voltage detector
     HAL_PWREx_EnableUSBVoltageDetector();
 }