From 448e16db1aaadf2ae321af8a7955aba2b610b12e Mon Sep 17 00:00:00 2001
From: chen <15335560115@163.com>
Date: 星期三, 16 七月 2025 18:25:55 +0800
Subject: [PATCH] 增加防撞基站修改485和读取指令，修改showbuffer距离修改为g_com表设置距离
---
keil/include/drivers/serial_at_cmd_app.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 92 insertions(+), 1 deletions(-)
diff --git a/keil/include/drivers/serial_at_cmd_app.c b/keil/include/drivers/serial_at_cmd_app.c
index 60f1ee5..051466a 100644
--- a/keil/include/drivers/serial_at_cmd_app.c
+++ b/keil/include/drivers/serial_at_cmd_app.c
@@ -81,9 +81,10 @@
sum = ~sum;
return sum;
}
+
void SendComMap0(uint8_t data_length, uint8_t index)//表示成功读取的回应包
{
- static uint8_t send_frame[EUART0_RX_BUF_SIZE];
+ static uint8_t send_frame[EUART0_RX_BUF_SIZE];
uint16_t checksum = 0;
send_frame[0] = 0x55;
send_frame[1] = 0xAA;
@@ -282,6 +283,96 @@
extern uint8_t bind_flag;
void Usart0ParseDataHandler(uint8_t data)
{
+if(state5V_prase_flag&&!g_com_map[MODBUS_MODE])
+ { //升级程序
+ static UsartRecvPackState usart_receive_state = UsartReceiveWaitHead0;
+ uint16_t checksum = 0;
+ static uint8_t pack_datalen = 0,pack_length = 0,pack_index = 0,pack_msgtype = 0,pack_cmd = CMD_READ;
+ static uint8_t index = 0;
+ if(usart_receive_state == UsartReceiveWaitChecksum)
+ { //若收到校验和包
+ checksum = 0;
+ for(int i = 0; i<pack_length-5; i++) {
+ checksum += mUsart2ReceivePack[i];
+ }
+ checksum += pack_cmd;
+ checksum += pack_length;
+ checksum += pack_index;
+ checksum += pack_datalen;
+ checksum += pack_msgtype;
+ if(((data + checksum)&0xff) == 0xFF) //校验通过
+ {
+ switch(pack_cmd)
+ {
+ case CMD_WRITE:
+// if(pack_index==MODBUS_MODE*2)
+// {
+// Uart1GpsRecDebugSend();
+// g_com_map[MODBUS_MODE] = 1;
+// return;
+// }
+ //从mUsartReceivePack中读取pack_length长度的字节，放到全局变量中,赋值保存的参数并且存入flash
+ memcpy((uint8_t*)&g_com_map + pack_index, mUsart2ReceivePack, pack_datalen);
+ if(mUsart2ReceivePack[0]==1)
+ UpdateProcess(pack_index);
+ //返回一个error状态
+ //SendComMap(pack_datalen,pack_index);
+ save_com_map_to_flash();
+ //delay_ms(100);
+ NVIC_SystemReset();
+ break;
+ case CMD_READ:
+ //read包中data字节，即mUsart2ReceivePack[0]表示数据长度；
+ //从g_com_data结构体中的第index位置读取长度为mUsart2ReceivePack[0]的字节，发送出来
+ SendComMap0(pack_datalen,pack_index>>1);
+ break;
+ default:
+ break;
+ }
+ }
+ usart_receive_state = UsartReceiveWaitHead0;
+ pack_index = 0;
+ pack_length = 0;
+ index=0;
+ } else if((usart_receive_state == UsartReceiveWaitData) ) { //若果收到的是正常通讯包
+ mUsart2ReceivePack[index] = data;
+ index++;
+ if(index == pack_length-5) { //如果收到的index与长度相等
+ usart_receive_state = UsartReceiveWaitChecksum;
+ }
+ } else if(usart_receive_state == UsartReceiveWaitDataLen) { //收到指令类型字节
+ pack_datalen = data;
+ usart_receive_state = UsartReceiveWaitData;
+ } else if(usart_receive_state == UsartReceiveWaitIndex) { //收到指令类型字节
+ pack_index = data;
+ usart_receive_state = UsartReceiveWaitDataLen;
+ } else if(usart_receive_state == UsartReceiveWaitCMD) { //收到指令类型字节
+ pack_cmd = data;
+ usart_receive_state = UsartReceiveWaitIndex;
+ } else if(usart_receive_state == UsartReceiveWaitLength) { //收到长度字节
+
+ pack_length = data;
+ pack_index = 0;
+ usart_receive_state = UsartReceiveWaitCMD;
+
+ } else if((usart_receive_state == UsartReceiveWaitHead0) && (data == 0x55)) { //收到第一个包头
+ usart_receive_state = UsartReceiveWaitHead1;
+ } else if((usart_receive_state == UsartReceiveWaitHead1) && (data == 0xAA)) { //收到第二个包头
+ usart_receive_state = UsartReceiveWaitMsgType;
+ } else if ((usart_receive_state == UsartReceiveWaitMsgType) && (data == 0x3)) {
+ usart_receive_state = UsartReceiveWaitLength;
+ pack_msgtype = data;
+ }
+
+ else {
+ usart_receive_state = UsartReceiveWaitHead0;
+ pack_index = 0;
+ pack_length = 0;
+ }
+ }
+}
+void Usart3ParseDataHandler(uint8_t data)
+{
// 全局变量
static Usart0ReceiveState usart0_receive_state = Usart0ReceiveWaitHead0;
--
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