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spi test: set first 4096 bytes to 0

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This commit is contained in:
Joey Castillo 2022-01-27 14:28:37 -05:00
parent 3801ee6b19
commit 45aa04f4ac
2 changed files with 35 additions and 11 deletions
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44
apps/spi-test/app.c
View file

@ -6,15 +6,30 @@
// this is a very basic app to confirm that SPI is working, tested with board OSO-MISC-21-017 and a GD25Q16C Flash chip.
static bool wait_for_flash_ready(void) {
watch_set_pin_level(A3, false);
bool ok = true;
uint8_t read_status_response[1] = {0x00};
do {
ok = spi_flash_read_command(CMD_READ_STATUS, read_status_response, 1);
} while (ok && (read_status_response[0] & 0x3) != 0);
watch_set_pin_level(A3, true);
return ok;
}
void app_init(void) {
spi_flash_init();
delay_ms(5000);
uint8_t buf[3] = {1, 2, 3};
watch_set_pin_level(A3, false);
spi_flash_command(CMD_ENABLE_WRITE);
watch_set_pin_level(A3, true);
// note that you will need to erase the sector to write different values later
spi_flash_write_data(0, buf, 3);
uint8_t buf[256] = {0};
for(int i = 1; i < 16; i++) {
wait_for_flash_ready();
watch_set_pin_level(A3, false);
spi_flash_command(CMD_ENABLE_WRITE);
watch_set_pin_level(A3, true);
wait_for_flash_ready();
spi_flash_write_data(i * 256, buf, 256);
}
}
void app_wake_from_backup(void) {
@ -31,13 +46,20 @@ void app_wake_from_standby(void) {
bool app_loop(void) {
uint8_t buf[3] = {0};
uint8_t buf[4100] = {0};
printf("loop\n");
// should print 1, 2, 3
spi_flash_read_data(0, buf, 3);
printf("data: %x, %x, %x\n", buf[0], buf[1], buf[2]);
wait_for_flash_ready();
spi_flash_read_data(0, buf, 4100);
for(int i = 0; i < 4100; i++) {
if (buf[i] > 0) {
// should break at "byte 4096 is 255"
printf(" byte %d is %d!\n", i, buf[i]);
break;
}
}
delay_ms(100);
delay_ms(10000);
return false;
}

2
watch-library/shared/driver/spiflash.c
View file

@ -88,7 +88,9 @@ bool spi_flash_write_data(uint32_t address, uint8_t *data, uint32_t data_length)
address_to_bytes(address, request + 1);
flash_enable();
bool status = watch_spi_write(request, 4);
printf("status? ");
if (status) {
printf("status! Writing %d bytes to %02x %02x %02x\n", data_length, request[1], request[2], request[3]);
status = watch_spi_write(data, data_length);
}
flash_disable();