Hi
We are making a project where we use Bluetooth mesh, which works fine, but we have a problem with TWI (slave), the problem is when we want to read what is on the slave where we would like to read 3 bytes , but when we read we only get first and last bytes
Here is our code snip uint8_t buftest[1];
uint8_t count = 0;
// Sen8d number of nodes
buftest[0] = 1; //bufNodeTX[0];
__LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "tx_buff nodecount %u \n", /*buftest[0+count], buftest[1+count],*/ bufNodeTX[0]); //,bufNodeTX[1+count],buftest[2+count]);
nrf_drv_twis_tx_prepare(&instance, buftest, sizeof(buftest));
do {
if ((count % 2) == 0) {
if (!nrf_drv_twis_is_waiting_tx_buff(&instance) && !nrf_drv_twis_is_busy(&instance) && !nrf_drv_twis_is_pending_tx(&instance)) {
int firstbyte[1];
firstbyte[0] = 0b00011011; // bufNodeTX[count+1];
//__LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "tx_buff firstnodedata %u \n",/*buftest[0+count], buftest[1+count],*/bufNodeTX[count+1]);//,bufNodeTX[1+count],buftest[2+count]);
__LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "tx_buff firstnodedata %u count: %u \n", firstbyte[0], count);
nrf_drv_twis_tx_prepare(&instance, firstbyte, sizeof(firstbyte));
count++;
//nrf_delay_us(500);
}
} else {
if (!nrf_drv_twis_is_waiting_tx_buff(&instance) && !nrf_drv_twis_is_busy(&instance) && !nrf_drv_twis_is_pending_tx(&instance)) {
int secondbyte[1];
secondbyte[0] = 0b00100000; // bufNodeTX[count+1];
//__LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "tx_buff secondnodedata %u \n",/*buftest[0+count], buftest[1+count],*/bufNodeTX[count+1]);//,bufNodeTX[1+count],buftest[2+count]);
__LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "tx_buff secondnodedata %u count: %u \n", secondbyte[0], count);
nrf_delay_us(500);
nrf_drv_twis_tx_prepare(&instance, secondbyte, sizeof(secondbyte));
count++;
}
}
} while (count != (m_configured_devices * 2));
where we have been inspire by this page http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v14.2.0%2Fhardware_driver_twis_slave.html&cp=4_0_0_2_17
but we have an idea that the middle byte will be overwritten before it is sent, we don't now if it is right , so we would hear if there is somebody has an idea of what to do to read all 3 bytes instead of the 2 bytes .
