Hi,
I am trying to set-up a GPIO4[8] interrupt for C6748.
I have followed gpio_Sample example code provided in biospsp_03_00_01_00\drivers\examples\evm6738\gpio\src\
following is my code:
Gpio_IntrCmdArg intrCmdArg;
Gpio_PinCmdArg pinCmdArg;
CSL_SyscfgRegsOvly sysCfgRegs = (CSL_SyscfgRegsOvly)CSL_SYSCFG_0_REGS;
params.instNum = 0;
params.BankParams[4].inUse = Gpio_InUse_No;
params.BankParams[4].hwiNum = 8u;
params.BankParams[4].PinConfInfo[8].inUse = Gpio_InUse_No;
if (status == IOM_COMPLETED)
{
module->gpioHandle = Gpio_open(¶ms);
status = (module->gpioHandle == NULL) ? IOM_EALLOC : status;
}
/* enable OTG_VBUS_nFLT, GP4[8] PINMUX9 [31:28], INPUT, interrupt falling edge active low */
if (status == IOM_COMPLETED)
{
sysCfgRegs->PINMUX9 &= ~CSL_SYSCFG_PINMUX9_PINMUX9_31_28_MASK;
sysCfgRegs->PINMUX9 |= (CSL_SYSCFG_PINMUX9_PINMUX9_31_28_GPIO4_8 <<
CSL_SYSCFG_PINMUX9_PINMUX9_31_28_SHIFT);
// status = configurePin(USB0_OTG_VBUS_nFLT_PIN, Gpio_Direction_Input, PinState_LOW);
/* Configure GPIO(GPIO4_8_PIN) as an input */
pinCmdArg.pin = USB0_OTG_VBUS_nFLT_PIN;
pinCmdArg.value = Gpio_Direction_Input;
status = Gpio_setPinDir(module->gpioHandle, &pinCmdArg);
/* Enable GPIO Bank interrupt for bank GPIO_BANK_4 */
status = Gpio_bankInterruptEnable(module->gpioHandle, GPIO_BANK_4);
/* Configure GPIO(OTG_VBUS_nFLT) to generate interrupt on falling edge */
status = Gpio_setFallingEdgeTrigger(module->gpioHandle, USB0_OTG_VBUS_nFLT_PIN);
/* Set the interrupt handler for OTG_VBUS_nFLT, GP4[8]. Since we cannot register *
* interrupts for individual pins in C6748, therefore register interrupt *
* for the associated bank(BANK4) as a whole */
intrCmdArg.value = GPIO_BANK_4;
intrCmdArg.bankOrPin = Gpio_BankOrPin_isBank;
intrCmdArg.isrHandler = (Gpio_Isr)gpioInputIsr;
status = Gpio_regIntHandler(module->gpioHandle, &intrCmdArg);
}
// in cfg file
ECM.eventGroupHwiNum[0] = 7; // USB HWI
ECM.eventGroupHwiNum[1] = 8; // SPI1 Int
ECM.eventGroupHwiNum[2] = 9; // CameraManager/PRU HWI
ECM.eventGroupHwiNum[3] = 10;
what could I be missing?
