LPC54608 M1-pin(1,20port) cannot onoff

実奥山 — Wed, 27 Feb 2019 02:01:19 GMT

I tried onoff test of IO port. It is M1-pin,(port1,20).

Other pins do on-off.

But M1 pin do not on-off.

Below is a sample program.

port(1,17) do on-off.

But port(1,20 M1 pin) do not on-off.

GPIO_Clken(1); /* GPIO1 CLK enable */

GPIO_PinInit(1,17, &output_config);

GPIO_PinInit(1,20, &output_config);

oPort_sub(1,17,1);
oPort_sub(1,17,0);

oPort_sub(1,20,1);
oPort_sub(1,20,0);

Re: LPC54608 M1-pin(1,20port) cannot onoff

xiangjun_rong — Wed, 27 Feb 2019 03:36:52 GMT

Dear Sir,

I have tested the P1_20 pin on LPC54608 board, no problem.

Pls use the code to have a try based on SDK.

XiangJun Rong

    //configure P1_20 pin as GPIO
    //enable clock of P1 and IOCON
    SYSCON->AHBCLKCTRLSET[0]|=1<<15|1<<13;
    //configure the pin P1_20 as GPIO
    IOCON->PIO[1][20]=0x100; //dogital GPIO mode
    //configure the P1_20 direction register as output mode
    GPIO->DIRSET[1]=1<<20;
    GPIO->NOT[1]=1<<20;
    GPIO->NOT[1]=1<<20;
    GPIO->NOT[1]=1<<20;
    //toggle the P1_20 pin

in the main loop

while(1)

{

GPIO->NOT[1]=1<<20;

delay();

}

LPC MicrocontrollersのトピックLPC54608 M1-pin(1,20port) cannot onoff

LPC54608 M1-pin(1,20port) cannot onoff

Re: LPC54608 M1-pin(1,20port) cannot onoff