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Original question:

AM623: Security in Factory Production Process

AM623: Keywriter application drive GPIO failed

Andy Yu
Prodigy 175 points

Part Number: AM623

Hi TI-expert,

In out design, we need pull GPIO high to drive Vpp for Keywriter.

We use GPIO1_49 to verify the ability of "Keywriter drive GPIO".

However it didn't work, could you help to check this problem?

#define GPIO_LED_BASE_ADDR CSL_GPIO1_BASE
#define GPIO_LED_PIN 49
    gpioBaseAddr = (uint32_t) AddrTranslateP_getLocalAddr(GPIO_LED_BASE_ADDR);
    gpioPinNum = GPIO_LED_PIN;
    GPIO_setDirMode(gpioBaseAddr, gpioPinNum, GPIO_DIRECTION_OUTPUT);
    while(i++<10)
    {
        DebugP_log("gpio1_49 high\r\n");
        GPIO_pinWriteHigh(gpioBaseAddr, gpioPinNum);
        ClockP_sleep(2);
        DebugP_log("gpio1_49 low\r\n");
        GPIO_pinWriteLow(gpioBaseAddr, gpioPinNum);
        ClockP_sleep(2);
    }

Best regards,

Andy

  • +1
    Prodigy 175 points

    After add pinmux setting in example.syscfg, this problem solved.

    const gpio        = scripting.addModule("/drivers/gpio/gpio", {}, false);
const gpio1       = gpio.addInstance();
gpio1.pinDir                   = "OUTPUT";
gpio1.$name                    = "GPIO_LED";
gpio1.GPIO.$assign            = "GPIO1";
gpio1.GPIO.gpioPin.$assign    = "ball.C17";