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175 lines
5.8 KiB
175 lines
5.8 KiB
//////////////////////////////////////////////////////////////////////////
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/// COPYRIGHT NOTICE
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/// Copyright (c) 2015, 传控科技
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/// All rights reserved.
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///
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/// @file main.c
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/// @brief main app
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///
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///（本文件实现的功能的详述）
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///
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/// @version 1.1 CCsens technology
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/// @author CC
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/// @date 20150102
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///
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///
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/// 修订说明：最初版本
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/// Modified by:
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/// Modified date:
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/// Version:
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/// Descriptions:
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// 20160413 CC-ACC-VH02
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// 连接至 J22 RXD0 TXD0
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//P5_DIR &= ~BITN1; //p5.1输出TXD
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//P5_DIR |= BITN0; //p5.0输入RXD
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//P5_SEL0 &= ~(BITN0 +BITN1); //设置P5.0 P5.1为uart4 RXD TXD
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//P5_SEL1 |= BITN0 +BITN1;
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/*****************************************************************************
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update by cc @201700110
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针对多串口 和 单一串口 有区别 每个串口是独立的还是分开的有讲究 程序是复杂的还是软件应用简单是
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个需要平衡的事情.
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clib/clib.c:
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公用的函数 和硬件无关
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放置串行模式(串口等其他通讯总线类的输出)输出的函数,
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一些覆盖模式输出的(lcd等固屏输出的)的也可使用
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void Lc_print(void (*L0pf_send_uc)(char ww), char *dat,...)
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-----------------------------------------------------------------------------------------
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uartcom/Uprotocol2app
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协议到应用
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为了适应不同的通讯协议需要不同的uart口来对应 和应用相关
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typedef struct _ts_lcm_pro_; 应用协议包的定义? LCM的协议------------
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L3_UARTcom0_exp_protocol 解析应用协议
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-----------------------------------------------------------------------------------------
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uartcom/urec2protocol: 接收到的数据放入到指向特定协议的缓存中，和协议的格式有关 一般分为 标头式或者标尾式
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公用的串口通讯定义
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struct _s_uart_rec_ 的公共协议包(关键的结构体)的声明------struct _s_uart_rec_
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void L1_uart_2buf(struct _s_uart_rec_ *p)串行数据保存到指向特定协议的缓冲中
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--------------------------------------------------------------------------------------------
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msp/uartx.c 底层代码 和cpu相关 缓存发送也放在里面
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L0_uart4_Init
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uart4_IRQHandler
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L0_Usend_uc------UserDef
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-----------------------------------------------------------------------------------------
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********************************************************************************/
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#include "uart4.h"
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#include "../tpc/debug.h"
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//发送缓冲区
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static volatile Ts_uart_send_buf ts_uart_send_buf;
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//接收缓冲区最多存放16个字符，这个值尽量小，但要大于实际处理协议的缓冲区大小
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#define RECV_BUF_SIZE 32
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static U8 uart4_recv_buf[RECV_BUF_SIZE];
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Ts_uart_recv_buf ts_uart4_recv_buf;
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//#define FOSC 11059200L //系统频率
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//#define BAUD4 115200 //串口波特率
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void L0_uart4_init(void)//115200bps@11.0592MHz
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{
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#if(MainFre_11M == D_sys_MainFre)
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#if 0
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S4CON = 0x50; //8位可变波特率
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T4L = (65536 - (FOSC/4/BAUD4)); //设置波特率重装值
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T4H = (65536 - (FOSC/4/BAUD4))>>8;
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T4T3M |= 0x20; //定时器4为1T模式
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T4T3M |= 0x80; //定时器4开始计时
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#else
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S4CON = 0x10; //8位数据,可变波特率
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S4CON |= 0x40; //串口4选择定时器4为波特率发生器
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T4T3M |= 0x20; //定时器4时钟为Fosc,即1T
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T4L = 0xE8; //设定定时初值
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T4H = 0xFF; //设定定时初值
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T4T3M |= 0x80; //启动定时器4
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#endif
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#elif (MainFre_22M == D_sys_MainFre) //115200bps@22.1184MHz
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S4CON = 0x10; //8位数据,可变波特率
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S4CON |= 0x40; //串口4选择定时器4为波特率发生器
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T4T3M |= 0x20; //定时器4时钟为Fosc,即1T
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T4L = 0xD0; //设定定时初值
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T4H = 0xFF; //设定定时初值
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T4T3M |= 0x80; //启动定时器4
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#endif
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}
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void L0_uart4_buf_init(void)
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{
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//初始化协议发送缓冲区
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ts_uart[uNum4].p = &ts_uart_send_buf;
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ts_uart[uNum4].p->now = 0;
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ts_uart[uNum4].p->ok = D_ready;
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//初始化协议接收缓冲区
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ts_uart[uNum4].t = &ts_uart4_recv_buf;
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ts_uart[uNum4].t->buf = uart4_recv_buf;
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ts_uart[uNum4].t->head = 0;
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ts_uart[uNum4].t->ok = 0;
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//串口协议解析专用字段
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ts_uart[uNum4].t->head_0 = 0xAA;
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ts_uart[uNum4].t->head_1 = 0x55;
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ts_uart[uNum4].t->maxnum = RECV_BUF_SIZE;
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ts_uart[uNum4].tp_handler = L1_s2b_rs485;
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//串口初始化
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L0_uart4_init();
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D_uart4_ES_INT(1); //打开串口中断
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#if (D_UART4_485_TYPE != TYPE_485_NONE)
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D_UART4_485_RX() //默认处于接收状态
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#endif
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}
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void L0_uart4_sendArray(U8 * buf, U16 len)
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{
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#if (D_UART4_485_TYPE != TYPE_485_NONE)
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D_UART4_485_TX() //切换到输出状态
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#endif
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L0_uartN_sendArray(uNum4,buf,len);
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}
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/*************************************************
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UART 中断
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*************************************************/
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#define D_SERVE_uart4 interrupt 18
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void INTERRUPT_uart4(void) D_SERVE_uart4// using 2
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{
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#if 1
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//NOP(); NOP(); NOP();
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if(L0_uart4_IntRI()) //如果是U0接收中断
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{
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L0_uart4_IntRIClear(); //清除接收中断标志
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// ts_uart[uNum4].t->reg = L0_uartN_get(uNum4);
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ts_uart[uNum4].t->reg = S4BUF;
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if(ts_uart[uNum4].tp_handler != NULL){
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ts_uart[uNum4].tp_handler(ts_uart[uNum4].t);
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}
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}
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if(L0_uart4_IntTI()) //如果是U0发送中断
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{
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L0_uart4_IntTIClear(); //清除发送中断标志
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if(ts_uart[uNum4].p->max != ts_uart[uNum4].p->now)
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{
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// L0_uartN_set(uNum4,ts_uart[uNum4].p->p[ts_uart[uNum4].p->now]);
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S4BUF = ts_uart[uNum4].p->p[ts_uart[uNum4].p->now];
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ts_uart[uNum4].p->now ++;
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}
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else
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{
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ts_uart[uNum4].p->ok = D_ready;
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ts_uart[uNum4].p->max = 0;
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ts_uart[uNum4].p->now = 0;//可以发送下一个数据
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#if (D_UART4_485_TYPE != TYPE_485_NONE)
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D_UART4_485_RX() //切换到接收状态
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#endif
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}
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}
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//NOP(); NOP(); NOP();
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#endif
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}
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