UART input interrupt

RE: UART input interrupt

Ole Bauck — Mon, 16 Jan 2017 12:10:18 GMT

Click the grey check mark below the arrows on the left side of the answer ;)

RE: UART input interrupt

Switchfeet — Sat, 14 Jan 2017 01:17:57 GMT

How to mark the answer as correct? I can't find this kind of option :|

RE: UART input interrupt

Ole Bauck — Fri, 13 Jan 2017 12:41:20 GMT

No problem! Could you mark the answer as correct so others can see that it was useful?

RE: UART input interrupt

Switchfeet — Wed, 11 Jan 2017 03:16:29 GMT

@Ole Bauck

Thank you for your reply! It's very useful!

RE: UART input interrupt

Ole Bauck — Tue, 10 Jan 2017 15:06:15 GMT

You need to set index to 0 after doing the string compares or else the index will increase indefinitely and eventually corrupt your RAM:

if (data_array[index - 1] == '\r') {
    data_array[index - 1] = '\0';
    if (strcmp((const char *)data_array, ":0200FA") == 0) {
		printf("\r\nCMD 1 Received\r\n");
    }
	if (strcmp((const char *)data_array, ":100456g011") == 0) {
        printf("\r\nCMD 2 Received\r\n");
    }
    index = 0;
}

You should check out this for explanation of what the static keyword means in this situation (static uint8_t index = 0).

RE: UART input interrupt

Switchfeet — Tue, 10 Jan 2017 09:19:32 GMT

Temporarily solve first problem by clearing data_array after printf.