ADC + BLE problem

RE: ADC + BLE problem

ovrebekk — Fri, 08 Nov 2019 06:55:59 GMT

Do you have a scope available so you can check the state of the analog pin when you do the sampling?

Otherwise it is hard to know if the problem is external to the chip, or if it is a software issue.

Best regards
Torbjørn

RE: ADC + BLE problem

Nasib — Thu, 07 Nov 2019 09:50:28 GMT

i discover that the first reading of the ADC gives me wrong data... so i have to do at least a couple of readings before to enter in the while(1). Do you know why this could be happening?

RE: ADC + BLE problem

ovrebekk — Thu, 07 Nov 2019 08:14:45 GMT

Have you tried running the application in debugger mode to try to figure out why the example is disconnecting?

It is possible that some kind of assert or error occurs in the code, which might give you some idea regarding the cause of the issue.

[quote user=""][/quote]

This send some data:

nrf_gpio_pin_set(7);
read_ADC(lectura);

while(1){
send_data(lectura[0],lectura[1],lectura[2]);
}

but THIS SEND TOTALLY DIFFERENT DATA!!!

nrf_gpio_pin_set(7);

while(1){

read_ADC(lectura);
send_data(lectura[0],lectura[1],lectura[2]);
}

Isn't it natural that you get different data if you read the ADC for every iteration of the loop?

Or do you mean the data is drastically different in the range of values that you get?

Best regards
Torbjørn