Unable to toggle GPIO P0.0 or P0.1 with Zephyr

[tscribne]

Working with nrf52832_mdk and using basic GPIO functionality, I am unable to toggle the GPIO pins P0.0 or P0.1.   The code I am using is quite simple and I am able to toggle the LED's on a nrf52840_pca10056 when compiled in that environment.  When compiling on with nrf52932_mdk, I expect to see some activity on the pins P0.0 or P0.01 when I specify pin 0 or 1, however, there appears to be no activity.  My code is below:

nt 
gpio_set( 
    int pin, 
    bool set )
{
    int err;
    struct device *dev;

    dev = device_get_binding("GPIO_0");


    gpio_pin_configure( dev, pin, GPIO_OUTPUT_ACTIVE );


    if( verbose == true ){
        if ( set == true ) {
            printk("Set GPIO Pin %d - %d", pin,set);
        }else{
            printk("Clear GPIO Pin %d - %d", pin,set );
        }
    }

    err = gpio_pin_set(dev, pin, set);


    if ( verbose == true ) {
        if (err == 0) {
            printk("SUCCESS\n");
        }else{
            printk("FAILED\n");
        }                      
    }

    return( err );
}

Any clues as to why my pins are not toggles would be greatly appreciated.
Tom

[Sigurd]

Looks to be some HW issue with the board then. Again, I do not have a nrf52832-mdk board. Since it's Makerdiary that created this board, I recommend asking about this issue in the Makerdiary community forum: https://community.makerdiary.com/ , or send them a message from this page: https://makerdiary.com/pages/faqs

[tscribne]

Siguard,

Thanks, I understand that you now have one of our modules.  I have included my test program here along with the board definitions that I am using.  The basic program is to just toggle pins 6,7 and 8.  I believe you have the schematic, however, let me assist you in the pinouts we have.  There are two headers on the board, the SerialWIreDebug/Program header which allows us to program the NRF chip via SWDIO.  I have used another nrf52dk board as my programmer accordingly.   The other header is the serial Lock interface J1, which has the pins for which we are looking at.  Those pins are at P0.06 - Wakeup, P0.07 Enable, and P0.08 Busy.   We also have P0.12 and P0.11 as UART TxD/RxD which allows me to have a console input/output.   

Along with the above connections, I have a Saleae Logic Analyzer on my three pins 6,7,8. 

Once you have programmed the chip with my test program, you'll notice that only pin 6 is toggled.  My understanding is that those three pins are simple GPIO and should all three be showing toggling.

Please feel free to either contact me via email [email protected] or skype iTomScribner anytime for assistance or questions.  

Again, thanks for your assistance!

Tom

test2.zip

nrf52_Wildcat.zip

   

[tscribne]

Just following up on this ticket to see if any progress has been made on your side.  

[Sigurd]

tscribne said:

Just following up on this ticket to see if any progress has been made on your side.  

Not yet, but Stian Røed Hafskjold will try to do some measurements on your module very soon.

[Stian Røed Hafskjold]

Hi, I ran the code you posted on the board I got here, and all three pins are toggling just fine.

I noticed that the pins are connected to the board header through ferrite beads, and on pin 8 the ferrite bead was missing, so I just soldered on a 0R resistor so that the pin is connected all the way out to the header.