UARTE Driver Help

[NikTheNordicUser]

Good afternoon

i have built a small program for the uarte, using the example however im not managing to edit the event handler such that depending onthe text i recive i perform certain tasks.

Basically i would like to implement some function which include 3 chars and a termination bit ($) example ENA$ (enable bit ) .

may i please get some guidance or help

[Edvin]

So how far did you come?

Do you see the input bytes?

Do I understand correctly if this is the case?

If you receive the string "123" you should call one function, but if you receive the string "456" you should do another task?

What is it that you are stuck on? How to interpret the incoming string?

[NikTheNordicUser]

so far i have only managed to get the write to work, but i have a read function i just need some help with how to do the event handler part

but yes as you said if i read 123$ i would have a function called 123

if i read 456$ then i have a function called 456

[NikTheNordicUser]

i have adjusted the code to perform a loop back, my next step therefore is to see whats in the readbuffer and thus depending on whats in it persom different tasks. i.e if i recive 123$ then i call the function 123.

may i please get some help

[Edvin]

This is not a nordic related "issue", or an "issue" at all, really. 

If you know that the message will always end with "$", then you need to check the three bytes before that. I suggest you look at the ble_app_uart example for how to store the incoming data. You will get an event for each incoming byte, but this example checks if the last byte is a linefeed, or if the buffer is full. At that point, it will send the packet over BLE. Perhaps you can reuse some of the same logic to do what you want to do. 

Best regards,

Edvin

[NikTheNordicUser]

THank you will do