Hi ,
I configured nordic as slave and it looks like the transactions been successful, but when 2 SPI transactions occurs consecutively slave was setting 0xAA in return to master transaction.
The time period between 2 consecutive transaction varies between 5 to 20ms. Can you please let know what can cause this behavior?
Thank you,
Raj
Hi Torbjørn,
Yes, I am using the DEF as 0xAA; I am using UART and soft device; I was able to fix this 0xAA issue by just adding delay between 2 consecutively spi transactions from master, But now I am facing different issue looks like the RX buffer is not updating the values fast enough:
when I logged the TX data it shows [0x80 0x00]; but the logic analyzer shows [0x00 0x00]; Is this caused due to delay in updating the TX pointer? do you have any suggestions.
Thank you,
Raj
Hi Torbjørn,
How can I verify if the semaphore released after transfer?
Here is the SPI configuration code:
Here is the SPI event handler code:
static void spi_slave_event_handle(nrf_drv_spis_event_t event)
{
uint32_t err_code;
if (event.evt_type == NRF_DRV_SPIS_XFER_DONE)
{
NRF_LOG_PRINTF("event handler rx buffer size is event.rx_amount = %d \n\r",event.rx_amount);
if(m_conn_handle == BLE_CONN_HANDLE_INVALID && event.rx_amount!=3){
build_set_value_4byte_message(ESP32_Communication, 0x5A, ESP_4byte_buffer);
write_buffer(ESP_4byte_buffer, sizeof(ESP_4byte_buffer));
}
nrf_delay_ms(100);
spi_slave_buffer_command_check(m_rx_buf,m_tx_buf,event.rx_amount,event.tx_amount);
err_code = nrf_drv_spis_buffers_set(&m_spis, m_tx_buf, sizeof(m_tx_buf), m_rx_buf, sizeof(m_rx_buf));
APP_ERROR_CHECK(err_code);
nrf_delay_ms(100);
if(m_conn_handle == BLE_CONN_HANDLE_INVALID && event.rx_amount!=3){
build_set_value_4byte_message(ESP32_Communication, 0xA5, ESP_4byte_buffer);
write_buffer(ESP_4byte_buffer, sizeof(ESP_4byte_buffer));
}
}
}
Please let me know your suggestions.
Thank you,
Raj
Thank you,
Raj
