i.mx93 m33 core, issues with GPIO interrupt

Vitus — Mon, 17 Jun 2024 12:34:08 GMT

playing/debugging the imx93. I have a simple problem, maybe someone can point to what I do wrong here. I want to create an interrupt with a GPIO state change. I use the drivers from NXP, fsl_rpgio.c/h provided with the SDK for the i.MX93)

First I set the MUX:

IOMUXC_SetPinMux (IOMUXC_PAD_I2C1_SDA__GPIO1_IO01, 0U); IOMUXC_SetPinConfig (IOMUXC_PAD_I2C1_SDA__GPIO1_IO01, IOMUXC_PAD_DSE(15U) | IOMUXC_PAD_FSEL1(2U) | IOMUXC_PAD_PD_MASK);

Then I set up the port

rgpio_pin_config_t pin_config = { kRGPIO_DigitalInput, 0, }; GPIO1->PCNS = 0x0; /* Set PCNS register value to 0x0 to prepare the RGPIO initialization */ GPIO1->ICNS = 0x03; RGPIO_PinInit(GPIO1, 1, &pin_config); //sets PDDR RGPIO_SetPinInterruptConfig(GPIO1, 1, kRGPIO_InterruptOutput0, kRGPIO_InterruptRisingEdge); //rising edge interrupt NVIC_SetPriority(GPIO1_0_IRQn, 3 /*25*/ /*HAL_GPIO_ISR_PRIORITY*/); NVIC_EnableIRQ(GPIO1_0_IRQn);

for the interrupt handler I define (Reserved26 seems to be the General Purpose Input/Output 1 interrupt 0)

void Reserved26_IRQHandler() { RGPIO_ClearPinsInterruptFlags(GPIO1, 0, (1<<1)); }

But the interrupt never comes. Did I overlook sth. obvious?

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i.mx93 m33 core, issues with GPIO interrupt