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

   1 /**
   2  * File              : recv-with-ack.c
   3  * Author            : Robin Krens <robin@robinkrens.nl>
   4  * Date              : 23.01.2023
   5  * Last Modified Date: 23.01.2023
   6  * Last Modified By  : Robin Krens <robin@robinkrens.nl>
   7  */
   8 #include <stdarg.h>
   9 #include <stdint.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13
  14 #include "libsi24.h"
  15
  16 #define MSG_SIZE 32
  17
  18 int example_spi_write_read(unsigned char* data, size_t sz)
  19 {
  20         (void)data;
  21         (void)sz;
  22         return 0;
  23 }
  24
  25 void example_ce(unsigned val)
  26 {
  27         (void)val;
  28 }
  29
  30 void example_event_handler(si24_t* si, si24_event_t* e)
  31 {
  32         (void)si;
  33
  34         switch (e->type) {
  35         case EV_RX_COMPLETE:
  36                 break;
  37         case EV_TX_COMPLETE:
  38                 break;
  39         case EV_TX_FULL:
  40                 break;
  41         case EV_RX_EMPTY:
  42                 break;
  43         case EV_ERR_TIMEOUT:
  44                 break;
  45         case EV_ERR_BUS:
  46                 break;
  47         case EV_ERR_MAX_RETRIES:
  48                 break;
  49         case EV_ERR_CRC:
  50                 break;
  51         case EV_ERR_CONFIG:
  52                 break;
  53         default:
  54                 break;
  55         }
  56 }
  57
  58 int main(void)
  59 {
  60         unsigned char recv_buf[MSG_SIZE];
  61
  62         si24_ioctl_t ctl = {
  63                 .write_and_read = example_spi_write_read,
  64                 .chip_enable = example_ce,
  65         };
  66
  67         const si24_opts_t opts = {
  68                 .mode = RECV_MODE,
  69                 .enable_ack = 1,
  70                 .non_blocking = 0,
  71                 .enable_crc = 1,
  72                 .enable_dynpd = 1,
  73                 .crc = TWO_BYTE,
  74                 .ioctl = &ctl,
  75                 .speed = MBPS2,
  76                 .txpwr = PLUS4DB,
  77                 .payload = 5,
  78                 .timeout = 1,
  79                 .retries = 5,
  80                 .mac_addr = { 0xAB, 0xCD, 0xEF, 0xFF, 0xFF }
  81         };
  82
  83         struct si24_t* si = si24_init(&opts, example_event_handler);
  84
  85         while (1) {
  86                 int read = si24_recv(si, recv_buf, 32);
  87                 for (int i = 0; i < read; ++i) {
  88                         printf("%c", recv_buf[i]);
  89                 }
  90                 sleep(1);
  91         }
  92 }