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 +1,144 @@
+
+/*----------------------------------------------------------------------------------------------------
+	INCLUDE HEADE FILES
+----------------------------------------------------------------------------------------------------*/
+
+#include    "Includes.h"
+
+
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: Init_uart
+- 函数功能: UART初始化
+- 输入参数: 初始化串口号(0:uart0 1:uart1); 波特率
+- 创建日期: 2016-05-26
+----------------------------------------------------------------------------------------------------*/
+extern	void	Init_uart(uint32_t	ch , uint32_t	baud)
+{
+			uint32_t	val;
+			
+			__write_hw_reg32(CPR_RSTCTL_SUBRST_SW , (1<<(16+ch)));	//复位uart模块
+			__write_hw_reg32(CPR_RSTCTL_SUBRST_SW , ((1<<(16+ch))|(1<<ch)));//解复位uart模块		
+			
+			__read_hw_reg32(CPR_LP_CTL , val);
+			val &= ~(1<<(1-ch));
+			__write_hw_reg32(CPR_LP_CTL , val);						//关闭uartx时钟保护
+			
+			val = (1<<(16+ch+4)) | (1<<(ch+4));
+			__write_hw_reg32(CPR_CTLAPBCLKEN_GRCTL , val); 			//打开uartx pclk
+			__write_hw_reg32(CPR_UARTx_CLK_GRCTL(ch), 0x110018);
+			//__write_hw_reg32(CPR_UARTx_CLK_CTL(ch), 0x480271);
+            __write_hw_reg32(CPR_UARTx_CLK_CTL(ch), baud>>4);	
+    
+			__write_hw_reg32(UARTx_TCR(ch) , 0x80);                	//使能DLAB位
+			//__write_hw_reg32(UARTx_DLL(ch) , baud);
+            __write_hw_reg32(UARTx_DLL(ch) , baud&0x0F);
+			__write_hw_reg32(UARTx_DLH(ch) , 0);                 		
+
+			__write_hw_reg32(UARTx_TCR(ch) , 0x03);                	//清零DLAB位,8个BIT位
+			__write_hw_reg32(UARTx_FCR(ch) , 0xb7);                	//接收FIFO半满报中断, 并使能FIFO中断
+            __write_hw_reg32(UARTx_IER(ch) , 0x01);                	//打开接收中断
+			val = UART0_IRQn + ch;
+			NVIC_EnableIRQ((IRQn_Type)val);
+}
+
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: UART0_Handler
+- 函数功能: UART0中断处理函数
+- 输入参数: 无
+- 创建日期: 2016-05-26
+----------------------------------------------------------------------------------------------------*/
+extern	void	UART0_Handler(void)
+{
+		uint32_t	iWK = 0 ;
+		uint8_t		tWK = 0 ;
+
+		__read_hw_reg32(UART0_IIR , iWK);
+		iWK &= 0x0F;
+        
+		if((iWK != 0x04) && (iWK != 0x0c)) return;
+		
+		__read_hw_reg32(UART0_RBR , tWK);
+	
+}
+
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: UART1_Handler
+- 函数功能: UART1中断处理函数
+- 输入参数: 无
+- 创建日期: 2016-05-26
+----------------------------------------------------------------------------------------------------*/
+extern	void	UART1_Handler(void)
+{
+		uint32_t	iWK = 0 ;
+		uint8_t		tWK = 0 ;
+
+		__read_hw_reg32(UART1_IIR , iWK);
+		iWK &= 0x0F;
+    
+		if((iWK != 0x04) && (iWK != 0x0c)) return;
+		
+		__read_hw_reg32(UART1_RBR , tWK);
+#if 1	
+	   Uart_Send_Char(1,'R');
+	   Uart_Send_Char(1,'e');
+	   Uart_Send_Char(1,'v');
+	   Uart_Send_Char(1,':');
+	   Uart_Send_Char(1,tWK);
+	   Uart_Send_Char(1,'\n');
+#endif	    
+
+}
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: Uart_Send_Char
+- 函数功能: Uart发送一个字符
+- 输入参数: 串口号; 要发送的字符
+- 创建日期: 2016-05-26
+----------------------------------------------------------------------------------------------------*/
+extern	void	Uart_Send_Char(uint32_t	ch, uint8_t	c)
+{
+		unsigned	int	status;
+		for(; ;)
+		{			
+				__read_hw_reg32(UARTx_TSR(ch), status);
+				status &= 0x20;
+				if(status == 0x20) break;
+		}
+		__write_hw_reg32(UARTx_THR(ch), c);
+}
+
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: Uart_Send_String
+- 函数功能: Uart发送一个字符串
+- 输入参数: 串口号; 要发送的字符串
+- 创建日期: 2016-05-26
+----------------------------------------------------------------------------------------------------*/
+extern	void	Uart_Send_String(uint32_t	ch, uint8_t	*s)
+{
+		while(*s != '\0')				
+		{	
+				Uart_Send_Char(ch, *s++);
+		}
+}
+/* ---------------------------------------------------------------------------------------------------
+- 函数名称: Uart_Send_Buf
+- 函数功能: Uart发送一个长度为length的uint8_t类型的数组
+- 输入参数: 串口号; 要发送的数组，数组长度
+- 创建日期: 2019-04-02
+- 作    者：陈俊伟
+----------------------------------------------------------------------------------------------------*/
+extern	void	Uart_Send_Buf(uint32_t	ch, uint8_t	*s,uint32_t length)
+{
+		while(length--)				
+		{	
+				Uart_Send_Char(ch, *s++);
+		}
+}
+
+ 
+extern  void    test_uart(void) 
+{
+ 	gpio_mux_ctl(0,0);gpio_fun_inter(0,0);gpio_fun_sel(0,UART1_RX);
+	gpio_mux_ctl(1,0);gpio_fun_inter(1,0);gpio_fun_sel(1,UART1_TX);
+    Init_uart(1, BAUD_57600);
+	Uart_Send_String(1,"I am uart1...\n");
+}