I want to tranceive data to ADXL362 through SPI and refer to this program.
https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/spi
However, I can't get data.
I only modified tx_buffer value.
void spi_test_send(void)
{
int err;
u8_t tx_buffer[1] = {0x00}; // Modified here
u8_t rx_buffer[1];
const struct spi_buf tx_buf = {
.buf = tx_buffer,
.len = sizeof(tx_buffer)
};
const struct spi_buf_set tx = {
.buffers = &tx_buf,
.count = 1
};
struct spi_buf rx_buf = {
.buf = rx_buffer,
.len = sizeof(rx_buffer),
};
const struct spi_buf_set rx = {
.buffers = &rx_buf,
.count = 1
};
err = spi_transceive(accel_spi_dev, &spi_cfg, &tx, &rx);
if (err) {
printk("SPI error: %d\n", err);
} else {
/* Connect MISO to MOSI for loopback */
printk("TX sent: 0x%02x\n", tx_buffer[0]);
printk("RX recv: 0x%02x\n", rx_buffer[0]);
// tx_buffer[0]++;
}
}
Also, I added nrf9160_pca20035_v0_3_0.overlay file.
Any tip?
