#include "serial_at_cmd_app.h"
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#include "global_param.h"
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#include <string.h>
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#include <stdio.h>
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#include "dw_app.h"
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#define CMD_READ 1
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#define CMD_WRITE 2
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#define CMD_REPLY 3
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#define EUART_RX_BUF_SIZE 100
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typedef enum{ UsartReceiveWaitHead0,
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UsartReceiveWaitHead1,
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UsartReceiveWaitMsgType,
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UsartReceiveWaitLength,
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UsartReceiveWaitCMD,
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UsartReceiveWaitIndex,
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UsartReceiveWaitDataLen,
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UsartReceiveWaitData,
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UsartReceiveWaitChecksum
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}UsartRecvPackState;
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uint8_t mUsartReceivePack[100] = {0};
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void SendComMap(uint8_t data_length, uint8_t index)
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{
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static uint8_t send_frame[EUART_RX_BUF_SIZE];
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uint16_t checksum = 0;
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send_frame[0] = 0x55;
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send_frame[1] = 0xAA;
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send_frame[2] = 0x03;
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send_frame[3] = data_length+5;
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send_frame[4] = CMD_REPLY;
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send_frame[5] = index;
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send_frame[6] = data_length;
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memcpy(&send_frame[7], &g_com_map[index], data_length);
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for(int i = 0; i<(data_length+5); i++)
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{
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checksum += send_frame[2+i];
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}
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checksum = Checksum_u16(&send_frame[2],5+data_length);
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memcpy(&send_frame[7+data_length],&checksum,2);
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UART_PushFrame(send_frame, data_length+9);
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}
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void UpdateProcess(uint8_t index)
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{
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if(index == 2*CNT_UPDATE)
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{
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uint32_t result = 0;
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uint16_t tmp = 0xCCCC;
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__disable_irq();
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result = FLASH_Prepare(0x8004A38, 128);
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while(!result)
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{
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result = FLASH_Prepare(0x8004A38, 128);
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delay_ms(200);
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}
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if(result)
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result = FLASH_Write(0x8004A38, (const uint8_t*)&tmp, 2);
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__enable_irq();
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// printf("½øÈëÉý¼¶Ä£Ê½\r\n");
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g_com_map[CNT_UPDATE]=0;
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save_com_map_to_flash();
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delay_ms(100);
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// STMFLASH_Write_NoCheck(0x8004A38,0xAAAA);
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// Delay_ms(100);
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SCB->AIRCR = 0X05FA0000|(unsigned int)0x04; //Èí¸´Î»»Øµ½bootloader
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}
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if(index == 2*CNT_REBOOT)
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{
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g_com_map[CNT_REBOOT]=0;
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g_com_map[MAP_SIGN_INDEX]=0;
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save_com_map_to_flash();
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delay_ms(100);
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SCB->AIRCR = 0X05FA0000|(unsigned int)0x04; //Èí¸´Î»»Øµ½bootloader
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}
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if(index == 2*CNT_RESTART)
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{
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g_com_map[CNT_RESTART]=0;
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save_com_map_to_flash();
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delay_ms(100);
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SCB->AIRCR = 0X05FA0000|(unsigned int)0x04; //Èí¸´Î»»Øµ½bootloader
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}
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}
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void UsartParseDataHandler(uint8_t data)
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{
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static UsartRecvPackState usart_receive_state = UsartReceiveWaitHead0;
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uint16_t checksum = 0;
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static uint8_t pack_datalen = 0,pack_length = 0,pack_index = 0,pack_msgtype = 0,pack_cmd = CMD_READ;
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static uint8_t index = 0;
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if(usart_receive_state == UsartReceiveWaitChecksum) { //ÈôÊÕµ½Ð£ÑéºÍ°ü
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checksum = 0;
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for(int i = 0; i<pack_length-5; i++) {
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checksum += mUsartReceivePack[i];
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}
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checksum += pack_cmd;
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checksum += pack_length;
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checksum += pack_index;
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checksum += pack_datalen;
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checksum += pack_msgtype;
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if((data + checksum)&0xff == 0xFF) //УÑéͨ¹ý
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{
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switch(pack_cmd)
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{
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case CMD_WRITE:
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//´ÓmUsartReceivePackÖжÁÈ¡pack_length³¤¶ÈµÄ×Ö½Ú£¬·Åµ½È«¾Ö±äÁ¿ÖÐ
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if(mUsartReceivePack[0]==1)
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UpdateProcess(pack_index);
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memcpy((uint8_t*)&g_com_map + pack_index, mUsartReceivePack, pack_datalen);
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//·µ»ØÒ»¸öerror״̬
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//SendComMap(pack_datalen,pack_index);
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save_com_map_to_flash();
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delay_ms(100);
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NVIC_SystemReset();
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break;
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case CMD_READ:
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//read°üÖÐdata×Ö½Ú£¬¼´mUsartReceivePack[0]±íʾÊý¾Ý³¤¶È£»
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//´Óg_com_data½á¹¹ÌåÖеĵÚindexλÖöÁÈ¡³¤¶ÈΪmUsartReceivePack[0]µÄ×Ö½Ú£¬·¢ËͳöÀ´
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SendComMap(pack_datalen,pack_index>>1);
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break;
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default:
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break;
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}
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}
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usart_receive_state = UsartReceiveWaitHead0;
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pack_index = 0;
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pack_length = 0;
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index=0;
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} else if((usart_receive_state == UsartReceiveWaitData) ) { //Èô¹ûÊÕµ½µÄÊÇÕý³£Í¨Ñ¶°ü
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mUsartReceivePack[index] = data;
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index++;
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if(index == pack_length-5) { //Èç¹ûÊÕµ½µÄindexÓ볤¶ÈÏàµÈ
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usart_receive_state = UsartReceiveWaitChecksum;
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}
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} else if(usart_receive_state == UsartReceiveWaitDataLen) { //ÊÕµ½Ö¸ÁîÀàÐÍ×Ö½Ú
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pack_datalen = data;
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usart_receive_state = UsartReceiveWaitData;
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}else if(usart_receive_state == UsartReceiveWaitIndex) { //ÊÕµ½Ö¸ÁîÀàÐÍ×Ö½Ú
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pack_index = data;
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usart_receive_state = UsartReceiveWaitDataLen;
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} else if(usart_receive_state == UsartReceiveWaitCMD) { //ÊÕµ½Ö¸ÁîÀàÐÍ×Ö½Ú
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pack_cmd = data;
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usart_receive_state = UsartReceiveWaitIndex;
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} else if(usart_receive_state == UsartReceiveWaitLength) { //ÊÕµ½³¤¶È×Ö½Ú
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pack_length = data;
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pack_index = 0;
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usart_receive_state = UsartReceiveWaitCMD;
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} else if((usart_receive_state == UsartReceiveWaitHead0) && (data == 0x55)) { //ÊÕµ½µÚÒ»¸ö°üÍ·
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usart_receive_state = UsartReceiveWaitHead1;
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} else if((usart_receive_state == UsartReceiveWaitHead1) && (data == 0xAA)) { //ÊÕµ½µÚ¶þ¸ö°üÍ·
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usart_receive_state = UsartReceiveWaitMsgType;
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}else if ((usart_receive_state == UsartReceiveWaitMsgType) && (data == 0x3)) {
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usart_receive_state = UsartReceiveWaitLength;
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pack_msgtype = data;
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}
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else {
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usart_receive_state = UsartReceiveWaitHead0;
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pack_index = 0;
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pack_length = 0;
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}
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}
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