Hey,
I'm new on uClinux/coldifre and I have a problem with the GPIO.
I found, on the Internet, that I just need to set up a pointer to the I/O
address to access to the I/O but when I run my application on uClinux the
error message "Memory Fault" appears and my application quit.
Here is my simple test code:
#define GPTADR (*(volatile unsigned char *)0x401a001d)
#define GPTADDR (*(volatile unsigned char *)0x401a001e)
int main(void){
GPTADDR = 0xFF;
return 0;
}
I'm working on the DNP/5280 board, Coldfire 5282.
I use this command to compile my code:
m68k-uclinux-gcc –Wall –m5307 –Wl,-elf2flt –Os –o hello hello.c –lc
Does anyone has an idea to solve my problem?
Thanks a lot!
Valentin.
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