Posted on May 17, 2011 at 09:35Hello everyone!!
I have an IAR STR912-SK with J-Link and I’m trying to use the EMI in multiplexed mode, 16-bit Data, 18-bit Address, CS0, wait states >=10 for all. I used CAPS for generating the pin assignment. And I read every post in this forum related to EMI, accepting all the given recommendations, like enabling both __EMI and __EMI_MEM_CLK in the clock gating control 0 register. I also add this line of code:
GPIO_EMIConfig( ENABLE ); which was not generated by CAPS.
I connected two latches for the address bus and made counter with a big delay so I can see that the address lines work fine. I placed leds at the address lines:
while(1)
{
fvar = 0;
*(u16*)(0x3C000000 + i) = (u16)i;
while(fvar < 10000)
fvar++;
i++;
if(i>0xffff) i = 0;
}
But, the only lines doing the right sequence are P9.0~P9.3. Port8 is weird (strange sequence), but repetitive. P9.4~P9.7 count ok but the leds blink randomly. It isn’t a hardware problem, because I checked this by hand.
I placed comment bars before the debug(); sentence. I don’t know if that is enough to disable this directive and if that is causing the strange behavior, but even after that, the sequence is not normal.
My simple … simple question is: How can I generate a code (with EWARM in this case) with DEBUG disable so I can download it to the processor using a tool like the JTag Programmer. I want to try this to be sure that the debugger is not the problem.
Thanks to all.
