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[DPRG] Serial woes 2
Subject: [DPRG] Serial woes 2
From: scott at lighthouse21.com
scott at lighthouse21.com
Date: Sun Feb 25 23:21:03 CST 2007
Hello all,
I'm trying to grab characters from a serial data stream coming into an
Atmega 88. If I just debug print them to the LCD I can see the value come
through that I'm looking for but if I try to capture it with an IF the IF
never runs. Here's the code snippet:
if (!(UCSR0A & (1 << RXC0))) // See if there's a character waiting
{
iFoo = ~iFoo; // do nothing if there's no char waiting
}
else
{
cFromUART = UDR0; // Get the character from the UART
if (cFromUART == 0xF1) // If its a time code message, catch it
{
sprintf (sTimeCode,"%cTIME%d",12,cFromUART);
LCDBug (sTimeCode);
while (1); // Show it on the LCD for ever and ever
}
This IF never actually comes through. If I just run the data straight to
the LCD you can see 0xF1 go by a couple of times.
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