stm32单片机57步进电机测试程序可控制pwm频率 -

/************************************************************
************************************************************/
#include "bsp_TB6600_TIM.h"
#include "stm32f10x.h"
#include "stm32f10x_usart.h"
#include <stdio.h>
char RX=0;
extern __IO uint16_t prescaler;//这个参数控制pwm频率
/////////////////////////串口函数///////////////////////////////
void Printf_Configuration(void);
void Usart_GPIO_Configuration(void);
////////////////////////////////////////////////////////////////
void RCC_Configuration(void);
void Limit(uint16_t F);//速度限制
////////////////////////////////////////////////////////////////
//////////////////////printf函数////////////////////////////////
int fputc(int ch,FILE*f)
{
while(USART_GetFlagStatus( USART1, USART_FLAG_TC)==RESET);//等待发送完毕
USART_SendData(USART1,ch);//将ch送给usart1
return(ch);//返回ch
}
//因为printf()之类的函数，使用了半主机模式。使用标准库会导致程序无法运行。有两种解决方法
//1.使用微库。魔术棒——Target——Code Generation选择使用Use MicroLIB
//2.添加如下程序代码
struct __FILE
{
int handle;
/* Whatever you require here. If the only file you are using is */
/* standard output using printf() for debugging, no file handling */
/* is required. */
};
FILE __stdout; // FILE is typedefed in stdio.h.
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
int main(void)
{
RCC_Configuration();
TB6600_TIMx_PWM_Init();
Usart_GPIO_Configuration();
Printf_Configuration();
printf("start");
while(1) //必须有while（1）否侧程序就会跑飞
{
while(USART_GetFlagStatus( USART1, USART_FLAG_RXNE)==RESET);
RX=USART_ReceiveData(USART1);
if(RX=='Z')//原速300r/s
{
prescaler=125;
printf("speed:300r/s\n\r");
}
if(RX=='A')//加速600r/s
{
prescaler=62;
printf("speed:600/s\n\r");
}
if(RX=='E')//减速150r/s
{
prescaler=250;
printf("speed:150/s\n\r");
}
}
}
void RCC_Configuration(void)
{
RCC_DeInit(); //初始化缺省值
RCC_HSEConfig(RCC_HSE_ON);//使能外部高速时钟
while(RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET);
FLASH_SetLatency(FLASH_Latency_2);
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
RCC_HCLKConfig(RCC_SYSCLK_Div1); //HCLK=SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //PCLK2=HCLK
RCC_PCLK1Config(RCC_HCLK_Div2); //PCLK1=HCLK/2
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){};
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource()!= 0x08);
/* Enable GPIOB, GPIOC and AFIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);
}
void Usart_GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure USARTX_TX as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure USARTX_RX as input floating */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOA, ENABLE);
}
void Printf_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 , ENABLE);
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
}
void USART2_IRQHandler(void)
{
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET)//判断中断来源标志
{
USART_ClearFlag(USART2,USART_IT_RXNE);//清除中断标志
while(USART_GetFlagStatus( USART2,USART_FLAG_RXNE)==RESET);//判断接收标志，否则数据会丢失
…………限于本文篇幅余下代码请从51黑下载附件…………

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