in ble send data period ,nrf 5340 CPU seem to be shared only by ble send
data ready and data read in ble not send period can equal ,this mean every data come from ecg chip can be read.
but when nrf5340 send data period ,data ready and can not be read .
i use below code read data and when data reach to 244 bytes ble send a time.
nrf5340 p0.13 falling edge mean data comes ,every 4 ms data comes a time
void ADS129XdataRdy(const struct device *dev, struct gpio_callback *cb,uint32_t pins)
{
if(!nrf_gpio_pin_read(13))
{
ADS129x_CS_L;
k_sem_give(&ADS129xdataRdy_sem);
LOG_INF("dataRdy at %" PRIu32 "", k_cycle_get_32());
}
}
for (;;) {
k_sem_take(&ADS129xdataRdy_sem, K_FOREVER);
ADS129x_Read_Data( ) ;
LOG_INF("read at %" PRIu32 "", k_cycle_get_32());
k_sem_reset(&ADS129xdataRdy_sem);
if(k_sem_take(&g_ble_send_ecg, K_MSEC(1))==0 )
{
if(current_conn)
{
bt_nus_send(current_conn, ECGbuf->data, 235);
}
LOG_INF("ble send %" PRIu32 "", k_cycle_get_32());
}
