init

2025-07-07 10:41:49 +08:00
commit 1bae677e06
88 changed files with 36686 additions and 0 deletions
@@ -0,0 +1,139 @@
+#ifndef _UART_C_
+#define _UART_C_
+#include "ca51f5_config.h"
+#include "../../includes/ca51f5sfr.h"
+#include "../../includes/ca51f5xsfr.h"
+#include "../../includes/gpiodef_f5.h"
+#include "../../includes/system.h"
+
+#include "../../Library/includes/uart.h"
+#include <intrins.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <absacc.h>
+/*********************************************************************************************************************/
+/*********************************************************************************************************************/
+#ifdef UART0_EN
+/*********************************************************************************************************************
+注意：以下波特率配置参数前提条件是系统时钟为16MHz，如果修改系统时钟频率，波特率配置参数须另行计算。
+***********************************************************************************************************************/
+void Uart0_Initial(unsigned long int baudrate)
+{
+	code unsigned long int BR_TAB[]=
+	{
+		1200,
+		2400,
+		4800,
+		9600,
+		19200,
+		38400,
+		57600,
+		115200,
+	};
+	code unsigned int BR_SET_TAB[][2]=
+	{
+		{416,31},
+		{208,31},
+		{104,31},
+		{52,31},
+		{26,31},
+		{13,31},
+		{10,27},
+		{5,27},
+	};
+	unsigned int value_temp;
+	unsigned char i;
+	
+	uart0_send.head = 0;
+	uart0_send.tail = 0;
+	uart0_rev.head = 0;
+	uart0_rev.tail = 0;
+	uart0_tx_flag = 0;
+	
+	GPIO_Init(P31F,P31_UART0_RX_SETTING);
+	GPIO_Init(P30F,P30_UART0_TX_SETTING);
+	
+	for(i=0;i<sizeof(BR_TAB)/4;i++)
+	{
+		if(baudrate == BR_TAB[i])
+		{
+			value_temp = 0x10000 - BR_SET_TAB[i][0];
+			UDCKS = 0x80 | BR_SET_TAB[i][1]; 
+			break;
+		}
+	}
+	if(i == sizeof(BR_TAB)/4) return;	//如果所设置的波特率不在表格中，可自行添加。
+	
+	T2CON = 	0x24;
+	T2CH  = 	(unsigned char)(value_temp>>8);
+	T2CL  = 	(unsigned char)(value_temp);
+	TH2   = 	(unsigned char)(value_temp>>8);
+	TL2   = 	(unsigned char)(value_temp);;	
+	TR2   = 	1;
+
+	S0CON = 0x50;	 
+	ES0 = 1;
+}
+void Uart0_PutChar(unsigned char bdat)
+{
+	unsigned char free_space;
+	unsigned char tail_tmp;
+	while(1)
+	{				
+		tail_tmp = uart0_send.tail;	
+		if(uart0_send.head < tail_tmp)
+		{
+			free_space = tail_tmp - uart0_send.head;
+		}
+		else
+		{
+			free_space = UART0_TX_BUF_SIZE + tail_tmp - uart0_send.head;
+		}		
+		if(free_space > 1)
+		{
+			ES0 = 0; 
+			uart0_send.head++;
+			uart0_send.head %= UART0_TX_BUF_SIZE;
+			uart0_tx_buf[uart0_send.head] = bdat;			
+			if(!uart0_tx_flag)
+			{
+				ES0 = 1;				
+				uart0_send.tail++;
+				uart0_send.tail %= UART0_TX_BUF_SIZE;		
+				S0BUF=uart0_tx_buf[uart0_send.tail];				
+				uart0_tx_flag = 1;		
+			}
+			else
+			{
+				ES0 = 1;	
+			}			
+			break;
+		}
+	}
+}
+void UART0_RX_ISR (void)
+{
+	RI0 = 0;
+	uart0_rev.head++;
+	uart0_rev.head %= UART0_RX_BUF_SIZE;
+	uart0_rx_buf[uart0_rev.head]=S0BUF;
+}
+void UART0_TX_ISR (void)
+{
+	TI0 = 0;		
+	if(uart0_send.head!=uart0_send.tail)
+	{
+		uart0_send.tail++;
+		uart0_send.tail %= UART0_TX_BUF_SIZE;
+		S0BUF=uart0_tx_buf[uart0_send.tail];				
+	}
+	else
+	{
+		uart0_tx_flag=0;
+	}		
+}
+#endif
+/*********************************************************************************************************************/
+#endif