mirror of
https://github.com/yoboujon/dumber.git
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106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
#include "Xbee.h"
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#include "common.h"
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#include "usart.h"
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#include <stdlib.h>
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#include <string.h>
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char xbee_compute_checksum(char *buffer, int length);
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static void xbee_debug_send(int address, char *str);
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int xbeeSend(int addr_destination, char *str)
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{
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int i;
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char buffer[TRAME_SIZE_SEND];
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#ifdef __DEBUG__
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//xbee_debug_send(addr_destination, str);
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#endif /* __DEBUG__ */
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/* Allocation d'un buffer suffisant */
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if ((addr_destination>0xFFFF) || (addr_destination<0)) return XBEE_INVALID_ADDRESS;
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/* Remplissage du buffer */
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buffer[0] = 0x7E;
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buffer[1] = 0;
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buffer[2] = 7;
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buffer[3] = 0x01;
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buffer[4] = 0; // frame id set to 0 to disable ack
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buffer[5] = addr_destination>>8;
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buffer[6] = addr_destination&0xFF;
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buffer[7] = 0x0;
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for (i=0; i<3; i++){
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if((str[i]== 0x7E) ||(str[i]== 0x11) ||(str[i]== 0x13)){
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buffer[8+i] = str[i] + 1;
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}
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else if(str[i] == 0x7D){
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buffer[8+i]=str[i] + 2;
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}
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else {
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buffer[8+i] = str[i];
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}
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}
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buffer[TRAME_SIZE_SEND - 1]=xbee_compute_checksum(buffer, TRAME_SIZE_SEND-1);
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//HAL_UART_Transmit_DMA(&huart1,(uint8_t *)buffer, TRAME_SIZE);
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HAL_UART_Transmit(&huart1,(uint8_t *)buffer, TRAME_SIZE_SEND,1000);
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return XBEE_SUCCESS;
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}
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char xbee_compute_checksum(char *buffer, int length){
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int i;
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unsigned char checksum=0;
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for (i =3; i<length; i++){
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checksum =checksum + (unsigned char)buffer[i];
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}
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return (0xFF-checksum);
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}
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#ifdef __DEBUG__
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//static void xbee_debug_receive(void)
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//{
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//char *string_out;
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//int i;
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//ST_XBEE_FRAME frame;
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//
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// string_out = malloc(200);
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//
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// if (string_out!=0)
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// {
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// if (xbee_unpack_frame(&frame)==XBEE_SUCCESS)
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// {
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// if (frame.apiCmd == 0x89) // TX ACK
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// {
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// if (frame.status == 0)
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// sprintf(string_out, "<= Xbee Transmit Status (0x89)\n\r\tStatus = Success\n\r");
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// else
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// sprintf(string_out, "<= Xbee Transmit Status (0x89)\n\r\tStatus = Fail (No Ack)\n\r");
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// }
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// else
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// sprintf (string_out, "<= Xbee Receive Packet (0x81)\n\r\tAddress = 0x%04X\n\r\tRssi = 0x%02X\n\r\tLength = %i\n\r\tData = %s\n\r", frame.address, frame.rssi, frame.data_length, frame.data);
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// }
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//
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// for (i=0; i<strlen(string_out); i++)
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// {
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// ITM_SendChar(string_out[i]);
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// }
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//
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// free (string_out);
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// }
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//}
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//void wait_untilData(ST_XBEE_FRAME * FRAME){
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// char TRAME[20];
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// char TRAME2[20];
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// uint8_t size;
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// while(get_whole_trame(TRAME,&size) != 0);
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// xbee_escape_chars_receipt(TRAME,TRAME2,size);
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// dmaRestart();
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// xbee_unpack_frame(TRAME2,FRAME);
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//}
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#endif /* __DEBUG__ */
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