Hello, I am trying a simple btle application where one mcu will send a "help" message and another will respond with its address. The mcu that asks for stores the address of the responder and sets the dev match readio. like so
void setdevmatch0(uint32_t least_sig, uint16_t most_sig)
{
disable_radio(); /* set dev match address */
NRF_RADIO->DAB[0] = least_sig; // 0x4ae67dbe 32 least significant NRF_RADIO->DAP[0] = most_sig; // 0x1172 16 most significant NRF_RADIO->DACNF |= (0x1) | (0x100); //enable addrress0 and keep any other dev match settigns
hal_radio_set_rcv_mode(); hal_radio_rcv();
}
essentially I deactivate the radio set the registers and then put the mcu to listen. it then goes into a while loop waiting for only messages from the other mcu.
while(1)
{
__nop();
if (NRF_RADIO -> EVENTS_DEVMATCH == 1)
{
NRF_RADIO -> EVENTS_DEVMATCH = 0; // clear our devmatch
parse_message((void *) NRF_RADIO->PACKETPTR);
NRF_RADIO->PACKETPTR = (uint32_t)&bootloader_packetptr; //update packetpointer
NRF_RADIO->TASKS_START = 1;
}
// need to create aomething to parse data... similiar to interrupt but interrupts are turned off
//toggle_led();
//its pressed, new fw
//wait_for_firmware();
}
this is just a simple wait for a devmatch and do something with the received packet. Problem I am having is that I can not get this to run in real time. If I set a breakpoint in the if statement I reach it and parse the data correctly. If I do not set a breakpoint at this location I never enter my parse data function.
Is there anything special, hints tips or tricks to using this dev amtch feature? I have the sender transmitting a packet a fll power every 250ms. So it is plenty of time for the receiver to parse the data and enter back into receive state.
I am using nrf52 btw
Thank you,
Eric Micallef
