CCS/TM4C1230H6PM: TM4C1230H6PM

Arka Sadhu

Part Number: TM4C1230H6PM

Tool/software: Code Composer Studio

I want to know the steps required to enable the GPIO Interrupt. As every time the input in the GPIO goes high, I want to read some data on another GPIO pin type. I am using TM4C123gxl. I want to specifically know how to configure the GPIO, so as to start the interrupt as soon as high signal is detected.

Any help will be appreciated.

over 8 years ago

0 Charles Tsai over 8 years ago

TI__Guru**** 191156 points

Let's say you want to use PB0 to generate an interrupt upon a rise edge then below is a typical code sequence.

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
IntEnable(INT_GPIOB);
GPIOPinIntClear(GPIO_PORTB_BASE, GPIO_PIN_0);
GPIOPinTypeGPIOInput(GPIO_PORTB_BASE, GPIO_PIN_0);
GPIOIntTypeSet(GPIO_PORTB_BASE, GPIO_PIN_0, GPIO_RISING_EDGE);
GPIOPinIntEnable(GPIO_PORTB_BASE, GPIO_PIN_0);

0 Arka Sadhu over 8 years ago in reply to Charles Tsai

Prodigy 50 points

This works! Thanks

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CCS/TM4C1230H6PM: TM4C1230H6PM