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Start work on testing SPI interface, looks like the AT86RF215 might be dead

This commit is contained in:
Kelvin Ly 2022-04-17 09:18:21 -04:00
parent ad4621cb2e
commit e93f115c23
3 changed files with 35 additions and 18 deletions
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2
src/spi_parser.h
View File

@ -66,7 +66,9 @@ static void parse_and_execute_cmd(const uint8_t* s, int c_len) {
if (is_read) {
// we're good, time to execute
//puts("doing read\n");
spi_register_read(addr, buf, len);
//puts("read finish\n");
uint8_t output_str[3*sizeof(buf) + 1];
for (int i = 0; i < len; i++) {
output_str[3*i] = tohex[(buf[i] >> 4) & 0xf];

10
src/spi_parser_test.c
View File

@ -76,12 +76,12 @@ static void dump_expected(struct test_case* tc) {
}
int main() {
const uint8_t test0[] = "r0102 1\n";
const uint8_t test1[] = "r1234 1a\n";
const uint8_t test2[] = "wffe7 3 11 22 33\n";
const uint8_t test0[] = "r0102 1";
const uint8_t test1[] = "r1234 1a";
const uint8_t test2[] = "wffe7 3 11 22 33";
const uint8_t test2_buf[] = {0x11, 0x22, 0x33};
const uint8_t test3[] = "\n";
const uint8_t test4[] = "w1ae7 8 1122 3344 ffee e0 f5\n";
const uint8_t test3[] = "";
const uint8_t test4[] = "w1ae7 8 1122 3344 ffee e0 f5";
const uint8_t test4_buf[] = {0x11, 0x22, 0x33, 0x44, 0xff, 0xee, 0xe0, 0xf5};
struct test_case cases[] = {
{test0, sizeof(test0), 1, 0, 0x0102, 1, NULL},

41
src/spi_test.c
View File

@ -5,7 +5,9 @@
#include "spi_parser.h"
#define AT86_RSTN 7
#define AT86_RSTN 5
#define SPI spi0
static void cs_select() {
asm volatile("nop \n nop \n nop");
@ -22,28 +24,28 @@ static void cs_deselect() {
static void spi_register_write(uint16_t address, const uint8_t *buf, uint16_t len) {
uint8_t cmd[2] = { address >> 8, address };
cmd[0] &= ~(3 << 6); // mask out top two bits
cmd[0] |= (2 << 6);
// set MODE[0] to set to write
// to set MODE to read
cs_select();
spi_write_blocking(PICO_DEFAULT_SPI, cmd, 2);
spi_write_blocking(PICO_DEFAULT_SPI, buf, len);
spi_write_blocking(SPI, cmd, 2);
spi_write_blocking(SPI, buf, len);
cs_deselect();
}
static void spi_register_read(uint16_t address, uint8_t *buf, uint16_t len) {
uint8_t cmd[2] = { address >> 8, address };
cmd[0] &= ~(3 << 6); // mask out top two bits
cmd[0] |= (2 << 6);
// set MODE[0] to set to write
cs_select();
spi_write_blocking(PICO_DEFAULT_SPI, cmd, 2);
spi_read_blocking(PICO_DEFAULT_SPI, 0, buf, len);
spi_write_blocking(SPI, cmd, 2);
spi_read_blocking(SPI, 0, buf, len);
cs_deselect();
}
int main() {
stdio_init_all();
// 10 MHz
spi_init(PICO_DEFAULT_SPI, 10*1000*1000);
spi_init(SPI, 100*1000);
gpio_set_function(PICO_DEFAULT_SPI_RX_PIN, GPIO_FUNC_SPI);
gpio_set_function(PICO_DEFAULT_SPI_SCK_PIN, GPIO_FUNC_SPI);
gpio_set_function(PICO_DEFAULT_SPI_TX_PIN, GPIO_FUNC_SPI);
@ -62,18 +64,31 @@ int main() {
// UART parse loop
int maybe_ch = getchar_timeout_us(1000);
if (maybe_ch != PICO_ERROR_TIMEOUT) {
if (maybe_ch == 0x0a) {
cmd[cmd_idx] = 0;
if ((maybe_ch != 0x1b) && (maybe_ch != 0x0d)) {
putchar(maybe_ch);
}
//const char tohex[] = "0123456789abcdef";
//putchar(tohex[(maybe_ch >> 4) & 0xf]);
//putchar(tohex[maybe_ch & 0xf]);
if (maybe_ch == 0x0d) {
puts("\r\n");
cmd[cmd_idx] = 0;
++cmd_idx;
// process command
/*
puts("sending cmd ");
for (int i = 0; i < cmd_idx; i++) {
const char tohex[] = "0123456789abcdef";
putchar(tohex[(cmd[i] >> 4) & 0xf]);
putchar(tohex[cmd[i] & 0xf]);
}
*/
parse_and_execute_cmd(cmd, cmd_idx);
puts("cmd finished\n");
cmd_idx = 0;
} else if (maybe_ch == 0x1b) {
putchar('^');
putchar('\n');
cmd_idx = 0;
} else {
putchar(maybe_ch);
cmd[cmd_idx] = maybe_ch;
if (cmd_idx < sizeof(cmd)-1) {
++cmd_idx;