"Chip_GPIO_GetPinState" not working

sagarpatil — Tue, 27 Dec 2016 15:04:44 GMT

Hi All and lpcware,

I am using LPC43S67 EVM board,

in my project i have to read sensor digital input,

so i am using following code to test GPIO functionality :-

#include <board_api.h>
#include <chip.h>
#include <chip_lpc43xx.h>
#include <gpio_18xx_43xx.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>

int main(void)
{
SystemCoreClockUpdate();
Board_Init(); //Chip_GPIO_init does nothing

// Chip_SCU_PinMuxSet(0x1,0x13,SCU_MODE_INBUFF_EN); //P1_13==GPIO1[6] from UM10503
// Chip_SCU_PinMux(0x1,0x13,SCU_MODE_INBUFF_EN,SCU_MODE_FUNC0);

Chip_GPIO_SetPinDIR(LPC_GPIO_PORT,0x1,0x6,false);                   //input   GPIO1[6]
   while(1)
   {
       if(Chip_GPIO_GetPinState(LPC_GPIO_PORT,0x1,0x6))
       {
           Chip_GPIO_SetPinState(LPC_GPIO_PORT,0x0,0x7,false);                                 //set GREEN led
       }
       else
       {
           Chip_GPIO_SetPinState(LPC_GPIO_PORT,0x3,0x7,false);                                  //set RED led
       }
   }
return 0;
}

but Chip_GPIO_GetPinState always returns "false",

i have connected 3.3v also on P1_13 also but still returns "false",

any help?

thanks and regards,

sagar

Re: "Chip_GPIO_GetPinState" not working

sagarpatil — Wed, 28 Dec 2016 06:21:45 GMT

Hi all,

below code is working for me,

#include <board_api.h>
#include <chip.h>
#include <chip_lpc43xx.h>
#include <gpio_18xx_43xx.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
int main(void)
{
SystemCoreClockUpdate();
Board_Init(); //Chip_GPIO_init does nothing

Chip_SCU_PinMuxSet(1,13,SCU_MODE_INBUFF_EN); //for SCU functionality use P1_13

   while(1)
   {
       if(Chip_GPIO_GetPinState(LPC_GPIO_PORT,1,6))        for GPIO functionality use GPIO1[6]
       {
           Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,7,false);
       }
       else
       {
           Chip_GPIO_SetPinState(LPC_GPIO_PORT,3,7,false);
       }
   }
}

Thanks for the help,

sagar

LPC Microcontrollers中的主题 Re: "Chip_GPIO_GetPinState" not working

"Chip_GPIO_GetPinState" not working

Re: "Chip_GPIO_GetPinState" not working