Mirrors/hackrf
2
0
Fork 0
mirror of https://github.com/greatscottgadgets/hackrf.git synced 2026-03-06 23:39:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add FPGA SPI test

Browse Source
This commit is contained in:
mndza
2025-12-11 13:01:07 +01:00
parent c7cf262486
commit d8fa93dcda
5 changed files with 35 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
firmware/common/fpga.c
View File

@@ -137,6 +137,31 @@ static int rx_samples(const unsigned int num_samples, uint32_t max_cycles)
return rc;
}
bool fpga_spi_selftest()
{
// Skip if FPGA configuration failed.
if (selftest.fpga_image_load != PASSED) {
selftest.fpga_spi = SKIPPED;
return false;
}
// Test writing a register and reading it back.
uint8_t reg = 5;
uint8_t write_value = 0xA5;
ssp1_set_mode_ice40();
ice40_spi_write(&ice40, reg, write_value);
uint8_t read_value = ice40_spi_read(&ice40, reg);
ssp1_set_mode_max283x();
// Update selftest result.
selftest.fpga_spi = (read_value == write_value) ? PASSED : FAILED;
if (selftest.fpga_spi != PASSED) {
selftest.report.pass = false;
}
return selftest.fpga_spi == PASSED;
}
static uint8_t lfsr_advance(uint8_t v)
{
const uint8_t feedback = ((v >> 3) ^ (v >> 4) ^ (v >> 5) ^ (v >> 7)) & 1;
@@ -145,15 +170,10 @@ static uint8_t lfsr_advance(uint8_t v)
bool fpga_sgpio_selftest()
{
#if defined(DFU_MODE) || defined(RAM_MODE)
selftest.sgpio_rx = SKIPPED;
return false;
#endif
bool timeout = false;
// Skip if FPGA configuration failed.
if (selftest.fpga_image_load != PASSED) {
// Skip if FPGA configuration failed or its SPI bus is not working.
if ((selftest.fpga_image_load != PASSED) || (selftest.fpga_spi != PASSED)) {
selftest.sgpio_rx = SKIPPED;
return false;
}
@@ -241,15 +261,10 @@ static bool in_range(int value, int expected, int error)
bool fpga_if_xcvr_selftest()
{
#if defined(DFU_MODE) || defined(RAM_MODE)
selftest.xcvr_loopback = SKIPPED;
return false;
#endif
bool timeout = false;
// Skip if FPGA configuration failed.
if (selftest.fpga_image_load != PASSED) {
// Skip if FPGA configuration failed or its SPI bus is not working.
if ((selftest.fpga_image_load != PASSED) || (selftest.fpga_spi != PASSED)) {
selftest.xcvr_loopback = SKIPPED;
return false;
}

1
firmware/common/fpga.h
View File

@@ -25,6 +25,7 @@
#include <stdbool.h>
bool fpga_image_load(unsigned int index);
bool fpga_spi_selftest();
bool fpga_sgpio_selftest();
bool fpga_if_xcvr_selftest();

1
firmware/common/selftest.h
View File

@@ -51,6 +51,7 @@ typedef struct {
bool si5351_readback_ok;
#ifdef PRALINE
test_result_t fpga_image_load;
test_result_t fpga_spi;
test_result_t sgpio_rx;
test_result_t xcvr_loopback;

1
firmware/hackrf_usb/hackrf_usb.c
View File

@@ -290,6 +290,7 @@ int main(void)
#else
fpga_image_load(0);
delay_us_at_mhz(100, 204);
fpga_spi_selftest();
fpga_sgpio_selftest();
#endif

3
firmware/hackrf_usb/usb_api_selftest.c
View File

@@ -116,6 +116,9 @@ void generate_selftest_report(void)
append(&s, &c, "FPGA configuration: ");
append(&s, &c, test_result_to_str(selftest.fpga_image_load));
append(&s, &c, "\n");
append(&s, &c, "FPGA SPI: ");
append(&s, &c, test_result_to_str(selftest.fpga_spi));
append(&s, &c, "\n");
append(&s, &c, "SGPIO RX test: ");
append(&s, &c, test_result_to_str(selftest.sgpio_rx));
append(&s, &c, "\n");