AM5706: GPIO interrupt configuration for AM5706

hardik rakesh kumar

Part Number: AM5706
Other Parts Discussed in Thread: SYSBIOS

Tool/software:

Hi, I'm using AM5706 processor and want to trigger and handle the interrupt coming at GPIO5_6 pin. I tried to use the GPIO APIs given in PDK folder(LED blink API) but not getting how to use those APIs, and also tried with accessing direct GPIO registers with this I'm also not getting the result.

Thanks

2 months ago

0 hardik rakesh kumar 2 months ago

Prodigy 10 points

I'm using SYS/BIOS RTOS in CCS environment.

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hello Hardik,

Are you using SYSBIOS only or also Linux on A15 core?

Please share the versions of SW you are using.

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi, I'm using only sysbios and SDK version processor_sdk_rtos_am57xx_08_01_00_09.

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Did you successfully build the Blink LED example from PDK?

0 Josue Zamitiz-Ayala 2 months ago in reply to Josue Zamitiz-Ayala

TI__Mastermind 24529 points

You can also learn more by reading Chapter 17 of the TRM.

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi, yes able to build it but when I'm copying code to my working project it is not working, gpio_init() function itself is crashing the code.

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

I read it, there I'm not finding the register which will take the address of my ISR

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hardik,

Just to make sure I understand I will reiterate the info you are telling me. You can build the example and successfully run it on your device, correct?

The issue arises from when you are trying to port the example into your own application? Could you share any logs of the error logs? No messages when building?

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi, actually I'm able to run the project for gpio led and able to trigger the interrupt, but what api they used for triggering the gpio interrupt is based on IRQ_STATUS_RAW0 register ( writing 1 to specific location triggered the interrupt for correspond pin of gpio), and I want to trigger the gpio interrupt whenever the gpio5_6 pin (DATA_IN register gets value 0 at the particular location correspond to specific pin of gpio) gets 0 as an data from external device.

I'll try to give you logs by tomorrow.

0 hardik rakesh kumar 2 months ago in reply to hardik rakesh kumar

Prodigy 10 points

Hi, the code attached below is based on GPIO port 5 (pin 6,7,8), I'm using this code to trigger the interrupt given by the TI led blink example code, they are using GPIOTriggerPinInt() for triggering the interrupt, I just don't want to use this API, and want to trigger the interrupt when some one is writing zero at the GPIO5_6,GPIO5_7,GPIO5_8, pins.

am i doing something wrong for configuring the GPIO interrupt, if yes please correct me.

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#include <ti/csl/csl_utils.h>
#include <ti/csl/soc/am571x/src/cslr_soc.h>
#include <ti/csl/csl_types.h>
#include <ti/drv/gpio/GPIO.h>
#include <ti/drv/gpio/soc/GPIO_soc.h>
#include <ti/drv/gpio/soc/GPIO_v1.h>
#include <ti/csl/soc/am571x/src/cslr_soc_mpu_baseaddress.h>
#include <ti/csl/hw_types.h>
#include <ti/csl/csl_clec.h>
/* Number of GPIO ports */
#define CSL_GPIO_PER_CNT    8U
/* GPIO Driver hardware attributes */
GPIO_v1_hwAttrs_list GPIO_v1_hwAttrs = {
                                        {
                                         CSL_MPU_GPIO1_REGS,
                                         61,
                                         0,
                                         55,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

#include <ti/csl/csl_utils.h>
#include <ti/csl/soc/am571x/src/cslr_soc.h>
#include <ti/csl/csl_types.h>
#include <ti/drv/gpio/GPIO.h>
#include <ti/drv/gpio/soc/GPIO_soc.h>
#include <ti/drv/gpio/soc/GPIO_v1.h>
#include <ti/csl/soc/am571x/src/cslr_soc_mpu_baseaddress.h>
#include <ti/csl/hw_types.h>
#include <ti/csl/csl_clec.h>

/* Number of GPIO ports */
#define CSL_GPIO_PER_CNT    8U

/* GPIO Driver hardware attributes */
GPIO_v1_hwAttrs_list GPIO_v1_hwAttrs = {
                                        {
                                         CSL_MPU_GPIO1_REGS,
                                         61,

                                         0,
                                         55,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO2_REGS,
                                         62,

                                         0,
                                         56,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO3_REGS,
                                         63,

                                         0,
                                         57,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO4_REGS,
                                         64,

                                         0,
                                         58,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO5_REGS,
                                         65,

                                         0,
                                         59,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO6_REGS,
                                         66,

                                         0,
                                         60,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO7_REGS,
                                         67,

                                         0,
                                         61,
                                         0
                                        },
                                        {

                                         CSL_MPU_GPIO8_REGS,
                                         153,

                                         0,
                                         0,
                                         0
                                        },
};

/* GPIO configuration structure */
CSL_PUBLIC_CONST GPIOConfigList GPIO_config =
{
 {
  &GPIO_FxnTable_v1,
  NULL,
  NULL
 },
 /* "pad to full predefined length of array" */
 {
  NULL,
  NULL,
  NULL
 },
 {
  NULL,
  NULL,
  NULL
 }
};

/* Callback function */
void AppGpioCallbackFxn1(void);
void AppGpioCallbackFxn2(void);
void AppGpioCallbackFxn3(void);
void AppGPIOInit(void);

/**********************************************************************
 ************************** Global Variables **************************
 **********************************************************************/

uint32_t gpioBaseAddr;
uint32_t gpioPin;

/* GPIO pin number connected to the green LED */
#define GPIO_6_PIN_NUM      (0x6)

/* GPIO port number connected to the green LED */
#define GPIO_PORT_NUM       (0x5)

/* GPIO pin number connected to the yellow LED */
#define GPIO_7_PIN_NUM      (0x7)

/* GPIO pin number connected to the yellow LED */
#define GPIO_8_PIN_NUM      (0x8)


/* GPIO Driver board specific pin configuration structure */
GPIO_PinConfig gpioPinConfigs[] = {
                                   /* Input pin with interrupt enabled */
                                   GPIO_DEVICE_CONFIG(GPIO_PORT_NUM, GPIO_6_PIN_NUM) |
                                   GPIO_CFG_IN_INT_FALLING | GPIO_CFG_INPUT,
								   
                                   /* Input pin with interrupt enabled */
                                   GPIO_DEVICE_CONFIG(GPIO_PORT_NUM, GPIO_7_PIN_NUM) |
                                   GPIO_CFG_IN_INT_FALLING | GPIO_CFG_INPUT,

                                   /* Input pin with interrupt enabled */
                                   GPIO_DEVICE_CONFIG(GPIO_PORT_NUM, GPIO_8_PIN_NUM) |
                                   GPIO_CFG_IN_INT_FALLING | GPIO_CFG_INPUT

};

/* GPIO Driver call back functions */
GPIO_CallbackFxn gpioCallbackFunctions[] = {
                                            &AppGpioCallbackFxn1,
                                            &AppGpioCallbackFxn2,
                                            &AppGpioCallbackFxn3
                                            //                                            NULL,
                                            //                                            NULL,
                                            //                                            NULL
};

/* GPIO Driver configuration structure */
GPIO_v1_Config GPIO_v1_config = {
                                 gpioPinConfigs,
                                 gpioCallbackFunctions,
                                 sizeof(gpioPinConfigs) / sizeof(GPIO_PinConfig),
                                 sizeof(gpioCallbackFunctions) / sizeof(GPIO_CallbackFxn),
                                 0x20,
};


/*
 *  ======== AppGPIOInit ========
 */
void AppGPIOInit(void)
{
    /* GPIO5 Clock Enable */
    *(unsigned int*)0x4A009778 = (unsigned int)(0x00000102);

    /* Pinmux for GPIO5_6 */
    *(unsigned int*)0x4A0036C4 = (unsigned int)(0x0000000EU);

    /* Pinmux for GPIO5_7 */
    *(unsigned int*)0x4A0036C8 = (unsigned int)(0x0000000EU);

    /* Pinmux for GPIO5_7 */
    *(unsigned int*)0x4A0036CC = (unsigned int)(0x0000000EU);
}
unsigned int ret_val;


void gpio_test(UArg arg0, UArg arg1)
{
    uint32_t testOutput = 0;


    AppGPIOInit();
	
    /* GPIO initialization */
    GPIO_init();

    GPIO_setCallback(0, AppGpioCallbackFxn1);

    /* Enable GPIO interrupt on the specific gpio pin */
    GPIO_enableInt(0);

    /* Set the callback function */
    GPIO_setCallback(1, AppGpioCallbackFxn2);

    /* Enable GPIO interrupt on the specific gpio pin */
    GPIO_enableInt(1);

    /* Set the callback function */
    GPIO_setCallback(2, AppGpioCallbackFxn3);

    /* Enable GPIO interrupt on the specific gpio pin */
    GPIO_enableInt(2);



    GPIOTriggerPinInt(0x4805B000, 0, 6);

    GPIOTriggerPinInt(0x4805B000, 0, 7);

    GPIOTriggerPinInt(0x4805B000, 0, 8);

    }


// *  ======== Callback function ========
void AppGpioCallbackFxn1(void)
{
	UART_printf("interrupt triggered for GPIO5-6------------------------------------- \n");
    ret_val = GPIOPinRead(0x4805B000, 6);
    UART_printf("in  GPIO 6 0x%x\n",ret_val);
}

void AppGpioCallbackFxn2(void)
{
    UART_printf("interrupt triggered for GPIO5-7------------------------------------- \n");
    ret_val = GPIOPinRead(0x4805B000, 7);
    UART_printf("in  GPIO 7 0x%x\n",ret_val);
}

void AppGpioCallbackFxn3(void)
{
    UART_printf("interrupt triggered for GPIO5-8------------------------------------- \n");
    ret_val = GPIOPinRead(0x4805B000, 8);
    UART_printf("in  GPIO 8 0x%x\n",ret_val);
}

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hi Hardik,

Could you please tell me what core are you building this for?

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi, for A15 core 0 I'm building this code.

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Thanks! I will try to take a look at this by the end of this week, might not get back to you until next week.

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Okay, I'll also try more from my side.

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Thank you!

Check these threads out for Ideas:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/653796/rtos-am5728-vector-number-in-pcie-example

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/573071/rtos-am5728-gpio-interrupt-response-is-slow

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi josue, I'll explain my connection of ti processor, I have connected the arinc chip(HI- 3220) through spi interface to the ti processor, and the int pin of arinc chip is connected to the gpio5_6 pin of the ti processor, as soon as arinc will receive the data it will trigger the interrupt and make the int pin low, this should generate the interrupt at gpio5_6 of the ti processor.

Apart from this I want to ask if there is any register for the ti am5706 to which I have to assigned my ISR address, if it is there, can you please send me the small snippet of assigning isr to the register for interrupt?

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hello Hardik,

I am out of the office until 1/22. Please expect delays in reply.

-Josue

0 hardik rakesh kumar 2 months ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Okay Josue, no problem.

0 Josue Zamitiz-Ayala 2 months ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Thanks!

0 hardik rakesh kumar 1 month ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi Josue, any update from your side?

0 Josue Zamitiz-Ayala 1 month ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hardik,

Unfortunately no. I have very low bandwidth and dealing with some internal escalations so I probably will not have time to try anything out for the next 2 weeks.

I apologize for the delay. For now, you will have to experiment on your own.

Please pay close attention to

Josue Zamitiz-Ayala said:
Chapter 17 of the TRM

and you can also look at SYS/BIOS (TI-RTOS Kernel) User's Guide (Rev. V) for SYS/BIOS reference

and also look at https://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_device_drv.html#gpio

best,

Josue

0 hardik rakesh kumar 29 days ago in reply to Josue Zamitiz-Ayala

Prodigy 10 points

Hi Josue, I tried from my side but not getting how to handle the hardware interrupt, any update from your side?

0 Josue Zamitiz-Ayala 28 days ago in reply to hardik rakesh kumar

TI__Mastermind 24529 points

Hi Hardik,

I have not had time to re-visit this. I apologize.

Hopefully I can look at it by next week.

-Josue

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AM5706: GPIO interrupt configuration for AM5706