Zoltan Hudak
mbed support for STM32F103C8T6 (Blue Pill) boards
Dependents: STM32F103C8T6_nRF24L01P_Hello_World Serial_over_Ethernet STM32F103C8T6_LoRaWAN-lmic-app STM32F103C8T6_WebUSBDFU ... more
Demo program and additional info:
Import programSTM32F103C8T6_Hello
Using low cost Bluepill (STM32F103C8T6) boards with mbed.
Last commit 05 Feb 2019 by 
Zoltan Hudak
Revision 2:534793444c60, committed 2016-07-05
- Comitter:
- hudakz
- Date:
- Tue Jul 05 18:19:01 2016 +0000
- Parent:
- 1:0bf5385bbf21
- Child:
- 3:a92af4b1ffe1
- Commit message:
- Updated
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SysClockConf.cpp Tue Jul 05 18:19:01 2016 +0000
@@ -0,0 +1,69 @@
+#include "SysClockConf.h"
+#include "mbed.h"
+
+bool HSE_SystemClock_Config(int freq) {
+ RCC_OscInitTypeDef RCC_OscInitStruct;
+
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ switch(freq) {
+ case 36:
+ RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+ break;
+ case 48:
+ RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
+ break;
+ default:
+ RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+ }
+
+ if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+ return false;
+ }
+
+ RCC_ClkInitTypeDef RCC_ClkInitStruct;
+
+ 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_DIV2;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+ if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
+ return false;
+ }
+
+ RCC_PeriphCLKInitTypeDef PeriphClkInit;
+
+ PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB;
+ switch(freq) {
+ case 36:
+ PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+ break;
+ case 48:
+ PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV4;
+ break;
+ default:
+ PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+ }
+ PeriphClkInit.UsbClockSelection = RCC_USBPLLCLK_DIV1;
+ if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
+ return false;
+ }
+ return true;
+}
+
+bool configSysClock(int freq) {
+ HAL_RCC_DeInit();
+ if (!HSE_SystemClock_Config(freq)) {
+ return false;
+ }
+ SystemCoreClockUpdate();
+ return true;
+}
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SysClockConf.h Tue Jul 05 18:19:01 2016 +0000 @@ -0,0 +1,2 @@ +#pragma once +bool configSysClock(int freq = 36 /*MHz*/);
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/stm32f103c8t6.h Tue Jul 05 18:19:01 2016 +0000 @@ -0,0 +1,6 @@ +#pragma once +#include "PinNames.h" +#include "SysClockConf.h" + + +