Stair56E UART project

2026-08-05 19:07:52 +08:00
parent 7ca1af130d
commit f5654b70cc
2500 changed files with 619007 additions and 282610 deletions
@@ -0,0 +1,90 @@
+
+
+
+#include    "Includes.h"
+
+
+
+typedef 	     unsigned int 		uint32_t;
+#define     	__write_hw_reg32(reg,val)  ((*reg) = (val))
+#define CPR_CTLAPBCLKEN_GRCTL           ((volatile unsigned *)(0x40000000 + 0x070))
+#define CPR_RSTCTL_CTLAPB_SW            ((volatile unsigned *)(0x40000000 + 0x100))
+#define CPR_RSTCTL_WDTRST_MASK          ((volatile unsigned *)(0x40000000 + 0x114))
+#define	WDT_CR							((volatile unsigned *)(0x40004000 + 0x00))
+#define	WDT_TORR						((volatile unsigned *)(0x40004000 + 0x04))
+#define	WDT_CRR						  	((volatile unsigned *)(0x40004000 + 0x0C))
+/* ---------------------------------------------------------------------------------------------------
+//看门狗计数器对应的初值
+(0x0)0000：0x    FFFF
+(0x1)0001：0x   1FFFF
+(0x2)0010：0x   3FFFF
+(0x3)0011：0x   7FFFF
+(0x4)0100：0x   FFFFF
+(0x5)0101：0x  1FFFFF
+(0x6)0110：0x  3FFFFF
+(0x7)0111：0x  7FFFFF
+(0x8)1000：0x  FFFFFF----约2S
+(0x9)1001：0x 1FFFFFF----约5S
+(0xA)1010：0x 3FFFFFF----约10S
+(0xB)1011：0x 7FFFFFF----约20S
+(0xC)1100：0x FFFFFFF
+(0xD)1101：0x1FFFFFFF
+(0xE)1110：0x3FFFFFFF
+(0xF)1111：0x7FFFFFFF
+----------------------------------------------------------------------------------------------------*/
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: xc_wdog_init
+- 函数功能: 初始化看门狗
+- 函数形参：看门狗计数器重装值
+- 创建日期: 2019-04-22
+----------------------------------------------------------------------------------------------------*/
+void xc_wdog_init(uint32_t counter_value) 
+{	 
+	__write_hw_reg32(CPR_CTLAPBCLKEN_GRCTL,0x10001); //WDT_PCLK 时钟使能
+    __write_hw_reg32(CPR_RSTCTL_CTLAPB_SW,0x40000);  //WDT 模块软复位    
+	__write_hw_reg32(CPR_RSTCTL_CTLAPB_SW,0x40004);
+	__write_hw_reg32(CPR_RSTCTL_WDTRST_MASK,0x20);//屏蔽 WDT 引起的 M0 的软复位,不屏蔽 WDT 引起的系统的软复位
+	__write_hw_reg32(WDT_CR,0x7);// WDT 使能 ,M0 复位信号，维持4个 pclk 时钟周期,工作模式 0，直接产生复位信号送给 CPR
+	__write_hw_reg32(WDT_TORR,counter_value);
+	__write_hw_reg32(WDT_CRR,0x76);	//重启计数器	
+}
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: xc_wdog_feed
+- 函数功能: 喂看门狗
+- 函数形参：无
+- 创建日期: 2019-04-22
+----------------------------------------------------------------------------------------------------*/
+void xc_wdog_feed(void)
+{   
+     __write_hw_reg32(WDT_CRR,0x76);	//重启计数器	
+}
+
+
+
+extern  void   test_wdog(void) 
+{
+	uint8_t count=0;
+	xc_wdog_init(0xA);
+	//__write_hw_reg32(CPR_RSTCTL_WDTRST_MASK,0x3);//屏蔽看门狗复位
+	printf("wdog reset\n ");
+	while(1)
+	{
+		
+	    printf("WDT_CCVR=%d\n",*WDT_CCVR);
+		printf("WDT_STAT=%d\n",*WDT_STAT);
+		for(uint32_t i=0; i<0x120000; i++);
+		for(uint32_t i=0; i<0x120000; i++);
+		for(uint32_t i=0; i<0x120000; i++);
+		//不喂狗时可以测试几秒钟看门狗复位
+		if(5==count) 
+		{
+			//xc_wdog_init(0xA);
+			//xc_wdog_feed();//此处不喂狗会引起系统复位
+			count=0;
+		}
+		else
+		{
+			count++;
+		}
+	}
+}