Content originally posted in LPCWare by Italia on Wed Sep 03 03:00:15 MST 2014
Hi,
i'm programming my CPU LPC2468 and my program run really good in debug mode.
Now, when i compile in release mode, my program stop tu function correctly and fall
in an infinite loop in an "if" instruction. I look the disassembly code and in the if instruction
i have the following:
boolean I2CEngine(time_t timeout)
{
while (!done)
{
if (I2CMasterState == DATA_NACK)
{
//result = I2CStop();
done = true;
}
}
}
In this case the I2CMasterState is modified in the interrupt routine and the degug show
that the the if condition is sutisfacted.
DISASSEMBLY:
00002a00: bge 0x2a0c <I2CEngine+28>
442 I2CStop();
00002a04: bl 0x29a4 <I2CStop>
446 done = true;
00002a08: mov r3, #255 ; 0xff
451 if (I2CMasterState == DATA_NACK)
00002a0c: ldr r2, [pc, #32] ; 0x2a34 <I2CEngine+68>
449 while (!done)
00002a10: cmp r3, #0
451 if (I2CMasterState == DATA_NACK)
00002a14: Unable to retrieve disassembly data from backend.
00002a15: movs r0, #0
00002a17: b.n 0x25be <coreFlashROMWrite+158>
Looking the disassembly there is also a missing coerence of the logic flow of the portion of program that i don't understand.
Thank u for u attention.
