Hello, using Ride 7 (7.01.0002 / RKit 1.03.0004) on a Win XP Pro system, i got a strange bug while compiling the following code :

--- start ----
#include "71x_lib.h"
u32 T;

int main()
{
// PLL Config
RCCU_Div2Config (DISABLE); // enable input divider
RCCU_PLL1Config (RCCU_PLL1_Mul_16,RCCU_Div_1); // 64MHz(1) //32MHz(2)
while(RCCU_FlagStatus(RCCU_PLL1_LOCK) == RESET)
{
/* Wait for PLL to lock */
}
RCCU_RCLKSourceConfig (RCCU_PLL1_Output); // select PLL1 clock
RCCU_MCLKConfig (RCCU_Div_1); // disable divider
RCCU_PCLK1Config (RCCU_Div_2); // Serial interfaces clock
RCCU_PCLK2Config (RCCU_Div_2); // IO,ADC,Timer,Watchdog clock

// GPIO Config
GPIO_Config(GPIO1,(1<<8),GPIO_OUT_OD); // PORT 1 pin 8

while(1)
{
GPIO_BitWrite (GPIO1,8,1);
for(T=0;T<100;T++);

GPIO_BitWrite (GPIO1,8,0);
for(T=0;T<100;T++);

}
}
--- end ---

Compile and run OK when optimization is disabled, but as soon as i enable optimisation (any level), the code still compile, but won't run properly.

Let me explain : when optimization is enable, the software won't enter the FOR loops, and the GPIO is toggling way too fast. I know for sure, as i checked the GPIO with an oscilloscope, and i also checked with NOICE, and the FOR loops are never entered.

Once again, disabling optimisation (with ALL other settings being the same) instantly makes the code run properly.

Any ideas ?

Regards,
Dave