diff libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/main.c @ 0:c59513fd84fb

Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/main.c	Mon Oct 03 21:19:15 2011 +1030
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+/**
+  ******************************************************************************
+  * @file    TIM/TIM10_PWMOutput/main.c 
+  * @author  MCD Application Team
+  * @version V3.5.0
+  * @date    08-April-2011
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup TIM10_PWMOutput
+  * @{
+  */ 
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
+TIM_OCInitTypeDef  TIM_OCInitStructure;
+uint16_t CCR1Val = 249;
+uint16_t PrescalerValue = 0;
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief   Main program
+  * @param  None
+  * @retval None
+  */
+int main(void)
+{
+  /*!< At this stage the microcontroller clock setting is already configured, 
+       this is done through SystemInit() function which is called from startup
+       file (startup_stm32f10x_xx.s) before to branch to application main.
+       To reconfigure the default setting of SystemInit() function, refer to
+       system_stm32f10x.c file
+     */     
+       
+  /* GPIO Configuration */
+  GPIO_Configuration();
+
+  /* -----------------------------------------------------------------------
+    TIM10 Configuration: generate 1 PWM signal.
+    The TIM10CLK frequency is set to SystemCoreClock (72 MHz), to get TIM10 counter
+    clock at 24 MHz the Prescaler is computed as following:
+     - Prescaler = (TIM10CLK / TIM10 counter clock) - 1
+
+    The TIM10 is running at 36 KHz: TIM10 Frequency = TIM10 counter clock/(ARR + 1)
+                                                  = 24 MHz / 666 = 36 KHz
+    TIM10 Channel1 duty cycle = (TIM10_CCR1/ TIM10_ARR)* 100 = 37.5%
+  ----------------------------------------------------------------------- */
+  /* Compute the prescaler value */
+  PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
+  /* Time base configuration */
+  TIM_TimeBaseStructure.TIM_Period = 665;
+  TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;
+  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
+  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
+
+  TIM_TimeBaseInit(TIM10, &TIM_TimeBaseStructure);
+
+  /* PWM1 Mode configuration: Channel1 */
+  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
+  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
+  TIM_OCInitStructure.TIM_Pulse = CCR1Val;
+  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
+
+  TIM_OC1Init(TIM10, &TIM_OCInitStructure);
+
+  TIM_OC1PreloadConfig(TIM10, TIM_OCPreload_Enable);
+
+  TIM_ARRPreloadConfig(TIM10, ENABLE);
+
+  /* TIM10 enable counter */
+  TIM_Cmd(TIM10, ENABLE);
+
+  while (1)
+  {}
+}
+
+/**
+  * @brief  Configure TIM10 pin.
+  * @param  None
+  * @retval None
+  */
+void GPIO_Configuration(void)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+  /* Enable TIM10 and GPIOF clock */
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM10 | RCC_APB2Periph_GPIOF |
+                         RCC_APB2Periph_AFIO, ENABLE);
+
+  /* Remap TIM10_CH1 on PF6 pin */
+  GPIO_PinRemapConfig(GPIO_Remap_TIM10, ENABLE);	
+  
+  /* GPIOF Configuration: TIM10 Channel1 as alternate function push-pull */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+
+  GPIO_Init(GPIOF, &GPIO_InitStructure);
+}
+
+#ifdef  USE_FULL_ASSERT
+
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(uint8_t* file, uint32_t line)
+{
+  /* User can add his own implementation to report the file name and line number,
+     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+
+  while (1)
+  {}
+}
+
+#endif
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/