add circuitpython code

1 files changed, 122 insertions, 0 deletions

diff --git a/circuitpython/lib/tinyusb/hw/bsp/stm32wb/boards/stm32wb55nucleo/board.h b/circuitpython/lib/tinyusb/hw/bsp/stm32wb/boards/stm32wb55nucleo/board.h
new file mode 100644
index 0000000..f42c7d6
--- /dev/null
+++ b/circuitpython/lib/tinyusb/hw/bsp/stm32wb/boards/stm32wb55nucleo/board.h
@@ -0,0 +1,122 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022, Jerzy Kasenberg
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+// LED
+#define LED_PORT              GPIOB
+#define LED_PIN               GPIO_PIN_5
+#define LED_STATE_ON          1
+
+// Button
+#define BUTTON_PORT           GPIOC
+#define BUTTON_PIN            GPIO_PIN_4
+#define BUTTON_STATE_ACTIVE   0
+
+// UART Enable for STLink VCOM
+#define UART_DEV              USART1
+#define UART_CLK_EN           __HAL_RCC_USART1_CLK_ENABLE
+#define UART_GPIO_PORT        GPIOB
+#define UART_GPIO_AF          GPIO_AF7_USART1
+#define UART_TX_PIN           GPIO_PIN_6
+#define UART_RX_PIN           GPIO_PIN_7
+
+
+//--------------------------------------------------------------------+
+// RCC Clock
+//--------------------------------------------------------------------+
+static inline void board_clock_init(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
+
+  // Initializes the CPU, AHB and APB busses clocks
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48 | RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState       = RCC_HSE_ON;
+  RCC_OscInitStruct.HSI48State     = RCC_HSI48_ON;
+  RCC_OscInitStruct.PLL.PLLState   = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource  = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM       = RCC_PLLM_DIV4;
+  RCC_OscInitStruct.PLL.PLLN       = 24;
+  RCC_OscInitStruct.PLL.PLLP       = RCC_PLLP_DIV4;
+  RCC_OscInitStruct.PLL.PLLQ       = RCC_PLLQ_DIV4;
+  RCC_OscInitStruct.PLL.PLLR       = RCC_PLLR_DIV3;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  // Initializes the CPU, AHB and APB busses clocks
+  RCC_ClkInitStruct.ClockType      = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
+
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
+  PeriphClkInit.UsbClockSelection    = RCC_USBCLKSOURCE_HSI48;
+  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) ;
+
+#if 0 // TODO need to check if USB clock is enabled
+  /* Enable HSI48 */
+  memset(&RCC_OscInitStruct, 0, sizeof(RCC_OscInitStruct));
+
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
+  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  /*Enable CRS Clock*/
+  RCC_CRSInitTypeDef RCC_CRSInitStruct= {0};
+  __HAL_RCC_CRS_CLK_ENABLE();
+
+  /* Default Synchro Signal division factor (not divided) */
+  RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
+
+  /* Set the SYNCSRC[1:0] bits according to CRS_Source value */
+  RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
+
+  /* HSI48 is synchronized with USB SOF at 1KHz rate */
+  RCC_CRSInitStruct.ReloadValue =  __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000);
+  RCC_CRSInitStruct.ErrorLimitValue = RCC_CRS_ERRORLIMIT_DEFAULT;
+
+  /* Set the TRIM[5:0] to the default value */
+  RCC_CRSInitStruct.HSI48CalibrationValue = RCC_CRS_HSI48CALIBRATION_DEFAULT;
+
+  /* Start automatic synchronization */
+  HAL_RCCEx_CRSConfig(&RCC_CRSInitStruct);
+#endif
+}
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */