robinkrens.nl - git repository - libsi24/blob - examples/send-with-ack.c

   1 #include <stdarg.h>
   2 #include <stdint.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 #include "libsi24.h"
   8
   9 int example_spi_write_read(unsigned char* data, size_t sz)
  10 {
  11         (void)data;
  12         (void)sz;
  13         return 0;
  14 }
  15
  16 void example_ce(unsigned val)
  17 {
  18         (void)val;
  19 }
  20
  21 void example_event_handler(si24_t* si, si24_event_t* e)
  22 {
  23         (void)si;
  24
  25         switch (e->type) {
  26         case EV_RX_COMPLETE:
  27                 break;
  28         case EV_TX_COMPLETE:
  29                 break;
  30         case EV_TX_FULL:
  31                 break;
  32         case EV_RX_EMPTY:
  33                 break;
  34         case EV_ERR_TIMEOUT:
  35                 break;
  36         case EV_ERR_BUS:
  37                 break;
  38         case EV_ERR_MAX_RETRIES:
  39                 break;
  40         case EV_ERR_CRC:
  41                 break;
  42         case EV_ERR_CONFIG:
  43                 break;
  44         default:
  45                 break;
  46         }
  47 }
  48
  49 int main(void)
  50 {
  51         const unsigned char buf[] = "SAMPLE TEST MESSAGE!";
  52
  53         si24_ioctl_t ctl = {
  54                 .write_and_read = example_spi_write_read,
  55                 .chip_enable = example_ce,
  56         };
  57
  58         const si24_opts_t opts = {
  59                 .mode = SEND_MODE,
  60                 .enable_ack = 1,
  61                 .non_blocking = 0,
  62                 .enable_crc = 1,
  63                 .enable_dynpd = 1,
  64                 .crc = TWO_BYTE,
  65                 .ioctl = &ctl,
  66                 .speed = MBPS2,
  67                 .txpwr = PLUS4DB,
  68                 .payload = 5,
  69                 .timeout = 5,
  70                 .retries = 5,
  71                 .mac_addr = { 0xAB, 0xCD, 0xEF, 0xFF, 0xFF }
  72         };
  73
  74         struct si24_t* si = si24_init(&opts, example_event_handler);
  75
  76         int bytes_sent = si24_send(si, buf, sizeof(buf));
  77         while (bytes_sent != sizeof(buf)) {
  78                 if (bytes_sent == -1)
  79                         break;
  80                 bytes_sent += si24_send(si, buf + bytes_sent, sizeof(buf) - bytes_sent);
  81         }
  82 }