Hi Customer,
This question, we already discuss it in the eefocus forum: http://www.nxpic.org/module/forum/thread-605837-1-1.html
Your configuration code is correct to change PTA0 to the GPIO function.
I think it is relate to your project, please check it, after this configuration, whether you configure the SIM_SOPT again?
Because I have test it on my frmd-ke04 board, it works ok on my side.
My main function is like this, which is modified from the KExx driver.
int main (void)
{
unsigned int i,j;
uint8_t u8Ch;
ICS_ConfigType sICSConfig;
UART_ConfigType sConfig;
/* Perform processor initialization */
sysinit();
printf("\nRunning the platinum project.\n");
LED0_Init();
LED2_Init();
//disable the SWD_CLK pin
PORT->PUEL |= 0X01;
SIM->SOPT&= ~SIM_SOPT_SWDE_MASK; //0x8u
SIM->SCGC&= ~SIM_SCGC_SWD_MASK; //0x2000u
GPIOA->PIDR|= 0x01;
GPIOA->PDDR|= 0x01;
GPIOA->PSOR|= 0x01;
printf("\nIt is in FEE mode now,");
while(1)
{
printf("\nsim sopt= %x", SIM->SOPT);
for(i=0;i<10;i++) for(j=0;j<65535;j++);
GPIOA->PTOR|= 0x01;
}
}
After this, I can get that the sopt is 0x04, the SWD pin function is the PTA0 function.
I can make the PTA0 toggle on my side.
So, please check your code carefully, whether you configure the SOPT again, or enbale the other module's in the PTA0 pin:
I also attach my test project for your reference.
Wish it helps you!
Have a great day,
Jingjing
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