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/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
©2013 Semtech-Cycleo
Description:
Minimum test program for the loragw_spi 'library'
License: Revised BSD License, see LICENSE.TXT file include in the project
Maintainer: Sylvain Miermont
*/
/* -------------------------------------------------------------------------- */
/* --- DEPENDANCIES --------------------------------------------------------- */
#include <stdint.h>
#include <stdio.h>
#include "loragw_reg.h"
/* -------------------------------------------------------------------------- */
/* --- MAIN FUNCTION -------------------------------------------------------- */
#define BURST_TEST_LENGTH 8192
int main()
{
int32_t read_value, test_value;
uint16_t lfsr;
uint8_t burst_buffout[BURST_TEST_LENGTH];
uint8_t burst_buffin[BURST_TEST_LENGTH];
int i;
printf("Beginning of test for loragw_reg.c\n");
lgw_connect();
/* 2 SPI transactions:
-> 0x80 0x00 <- 0x00 0x00 forcing page 0
-> 0x01 0x00 <- 0x00 0x64 checking version
*/
/* --- READ TEST --- */
lgw_reg_w(LGW_SOFT_RESET, 1);
lgw_reg_check(stdout);
/* --- READ/WRITE COHERENCY TEST --- */
/* 8b unsigned */
test_value = 197; /* 11000101b */
lgw_reg_w(LGW_IMPLICIT_PAYLOAD_LENGHT, test_value);
lgw_reg_r(LGW_IMPLICIT_PAYLOAD_LENGHT, &read_value);
printf("IMPLICIT_PAYLOAD_LENGHT = %d (should be %d)\n", read_value, test_value);
/* 8b signed */
/* NO SUCH REG AVAILABLE */
// /* RADIO_SELECT is normally unsigned, modify it manually in loragw_reg.c */
// test_value = -59; /* 11000101b */
// lgw_reg_w(LGW_RADIO_SELECT, test_value);
// lgw_reg_r(LGW_RADIO_SELECT, &read_value);
// printf("RADIO_SELECT = %d (should be %d)\n", read_value, test_value);
/* less than 8b, with offset, unsigned */
test_value = 11; /* 1011b */
lgw_reg_w(LGW_FRAME_SYNCH_PEAK2_POS, test_value);
lgw_reg_r(LGW_FRAME_SYNCH_PEAK2_POS, &read_value);
printf("FRAME_SYNCH_PEAK2_POS = %d (should be %d)\n", read_value, test_value);
/* less than 8b, with offset, signed */
/* NO SUCH REG AVAILABLE */
// /* MBWSSF_FRAME_SYNCH_PEAK2_POS is normally unsigned, modify it manually in loragw_reg.c */
// test_value = -5; /* 1011b */
// lgw_reg_w(LGW_MBWSSF_FRAME_SYNCH_PEAK2_POS, test_value);
// lgw_reg_r(LGW_MBWSSF_FRAME_SYNCH_PEAK2_POS, &read_value);
// printf("MBWSSF_FRAME_SYNCH_PEAK2_POS = %d (should be %d)\n", read_value, test_value);
/* 16b unsigned */
test_value = 49253; /* 11000000 01100101b */
lgw_reg_w(LGW_PREAMBLE_SYMB1_NB, test_value);
lgw_reg_r(LGW_PREAMBLE_SYMB1_NB, &read_value);
printf("PREAMBLE_SYMB1_NB = %d (should be %d)\n", read_value, test_value);
/* 16b signed */
/* NO SUCH REG AVAILABLE */
// /* CAPTURE_PERIOD is normally unsigned, modify it manually in loragw_reg.c */
// test_value = -16283; /* 11000000 01100101b */
// lgw_reg_w(LGW_CAPTURE_PERIOD, test_value);
// lgw_reg_r(LGW_CAPTURE_PERIOD, &read_value);
// printf("CAPTURE_PERIOD = %d (should be %d)\n", read_value, test_value);
/* between 8b and 16b, unsigned */
test_value = 3173; /* 1100 01100101b */
lgw_reg_w(LGW_ADJUST_MODEM_START_OFFSET_SF12_RDX4, test_value);
lgw_reg_r(LGW_ADJUST_MODEM_START_OFFSET_SF12_RDX4, &read_value);
printf("ADJUST_MODEM_START_OFFSET_SF12_RDX4 = %d (should be %d)\n", read_value, test_value);
/* between 8b and 16b, signed */
test_value = -1947; /* 11000 01100101b */
lgw_reg_w(LGW_IF_FREQ_1, test_value);
lgw_reg_r(LGW_IF_FREQ_1, &read_value);
printf("IF_FREQ_1 = %d (should be %d)\n", read_value, test_value);
/* --- BURST WRITE AND READ TEST --- */
/* initialize data for SPI test */
lfsr = 0xFFFF;
for(i=0; i<BURST_TEST_LENGTH; ++i) {
burst_buffout[i] = (uint8_t)(lfsr ^ (lfsr >> 4));
/* printf("%05d # 0x%04x 0x%02x\n", i, lfsr, burst_buffout[i]); */
lfsr = (lfsr & 1) ? ((lfsr >> 1) ^ 0x8679) : (lfsr >> 1);
}
lgw_reg_wb(LGW_TX_DATA_BUF_DATA, burst_buffout, 256);
lgw_reg_rb(LGW_RX_DATA_BUF_DATA, burst_buffin, 256);
/* impossible to check in software,
RX_DATA_BUF_DATA is read-only,
TX_DATA_BUF_DATA is write only,
use a logic analyser */
/* --- END OF TEST --- */
lgw_disconnect();
/* no SPI transaction */
printf("End of test for loragw_reg.c\n");
return 0;
}
/* --- EOF ------------------------------------------------------------------ */
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