BMS STM32 V4.0.0.0

2026-08-25 17:30:40 +08:00
commit 3ae7bcb054
313 changed files with 115734 additions and 0 deletions
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+/**
+  ******************************************************************************
+  * @file    tim.c 
+  * @author  Jerry
+  * @version V2.1
+  * @date    19-April-2022
+  * @brief   tim program body.
+  ******************************************************************************
+  * @attention
+  *
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+#include "global.h"
+
+//相对精确的ms延时，不使用中断
+//优化：防止和其他中断冲突，导致卡死
+void delay_ms(uint16_t ms)
+{
+	uint16_t i;
+	volatile uint32_t tempreg;
+	
+	uint32_t timeout; //等待时间
+	
+	for(i=0; i<ms; i++)
+	{
+		SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk;
+		SysTick->LOAD = 72000 - 1;
+		SysTick->VAL = 0;
+		SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
+		timeout = 72000;
+		do
+		{
+			tempreg = SysTick->CTRL;
+			
+			timeout--;
+			if(timeout == 0) 
+			{
+					break; //超时退出
+			}
+		}
+		while( (tempreg & SysTick_CTRL_COUNTFLAG_Msk) ==0); 
+		
+		SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
+		SysTick->VAL = 0;  
+	}
+}
+
+//相对精确的us延时，不使用中断
+//(没调用过)
+void delay_us(uint16_t us)
+{		
+	uint16_t i;
+	volatile uint32_t tempreg;
+	
+	for(i=0; i<us; i++)
+	{
+		SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk; 
+		SysTick->LOAD = 72;       
+		SysTick->VAL = 0;            
+		SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;    
+		do
+		{
+			tempreg = SysTick->CTRL;
+		}
+		while( (tempreg & SysTick_CTRL_COUNTFLAG_Msk) ==0); 
+		
+		SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
+		SysTick->VAL = 0;  
+	}	 
+}
+
+
+
+