On Jul 5, 2007, at 9:36 AM, Jordi Casals wrote:
Hi,
I have a little problem. My program uses async events (from Uart0
on micaz, T2) and I change a variable into them. I know that it is
dangerous and I use the atomic statement when I want to change the
value in another function... My explanation is very bad, and I put
an example:
____________________________________________________
...
uint8_t byteRx;
...
async event void Uart.receivedByte(uint8_t byte){
byteRx = byte;
post uartReceivedByte();
}
task void uartReceivedByte(){
...
}
void anotherFunction(){
atomic anotherVariable = byteRx;
}
_______________________________________________________
Well, when I compile, there is a warning:
warning: non-atomic accesses to shared variable `byteRx'
refered to the declaration of the variable.
How can I solve this warning??
(I've tried to do this: atomic uint8_t byteRx; and there is an error)
Thank you!
Please read the TinyOS programming manual.
http://www.tinyos.net/tinyos-2.x/doc
Phil
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