diff options
Diffstat (limited to 'loragw_hal/test/test_loragw_spi.c')
| -rw-r--r-- | loragw_hal/test/test_loragw_spi.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/loragw_hal/test/test_loragw_spi.c b/loragw_hal/test/test_loragw_spi.c index c5ab45b..0eae55d 100644 --- a/loragw_hal/test/test_loragw_spi.c +++ b/loragw_hal/test/test_loragw_spi.c @@ -29,6 +29,7 @@ Description: /* --- PRIVATE CONSTANTS ---------------------------------------------------- */ #define BURST_TEST_SIZE 2500 /* >> LGW_BURST_CHUNK */ +#define TIMING_REPEAT 1 /* repeat transactions multiple times for timing characterisation */ /* -------------------------------------------------------------------------- */ /* --- MAIN FUNCTION -------------------------------------------------------- */ @@ -36,8 +37,8 @@ Description: int main(int argc, char **argv) { int i; - int spi_device; - uint8_t data; + void *spi_target = NULL; + uint8_t data = 0; uint8_t dataout[BURST_TEST_SIZE]; uint8_t datain[BURST_TEST_SIZE]; @@ -47,20 +48,31 @@ int main(int argc, char **argv) } printf("Beginning of test for loragw_spi.c\n"); - lgw_spi_open(&spi_device); + lgw_spi_open(&spi_target); /* normal R/W test */ - lgw_spi_w(spi_device, 0xAA, 0x96); - lgw_spi_r(spi_device, 0x55, &data); + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_w(spi_target, 0xAA, 0x96); + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_r(spi_target, 0x55, &data); - /* burst R/W test */ - lgw_spi_wb(spi_device, 0x55, dataout, ARRAY_SIZE(dataout)); - lgw_spi_rb(spi_device, 0x55, datain, ARRAY_SIZE(datain)); + /* burst R/W test, small bursts << LGW_BURST_CHUNK */ + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_wb(spi_target, 0x55, dataout, 16); + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_rb(spi_target, 0x55, datain, 16); - /* display results */ - printf("data received: %d\n",data); + /* burst R/W test, large bursts >> LGW_BURST_CHUNK */ + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_wb(spi_target, 0x5A, dataout, ARRAY_SIZE(dataout)); + for (i = 0; i < TIMING_REPEAT; ++i) + lgw_spi_rb(spi_target, 0x5A, datain, ARRAY_SIZE(datain)); - lgw_spi_close(spi_device); + /* last read (blocking), just to be sure no to quit before the FTDI buffer is flushed */ + lgw_spi_r(spi_target, 0x55, &data); + printf("data received (simple read): %d\n",data); + + lgw_spi_close(spi_target); printf("End of test for loragw_spi.c\n"); return 0; |