SPI CS not toggled during transfer

[Jorge]

Hello,

I want to connect one board trough SPI to my nRF51-DK. Using SDK11 and SD130, the nRF51-DK is the SPI master, I call the function nrf_drv_spi_transfer() but the CS Pin is never toggled. To solve this I changed it manually before and after the transfer, but this is not a good solution. I dug into the functions and discovered that this should be done automatically by this part of the code (from what I understood):

    if (p_cb->ss_pin != NRF_DRV_SPI_PIN_NOT_USED)
    {
        nrf_gpio_pin_clear(p_cb->ss_pin);
    }

and after the transfer

    if (p_cb->ss_pin != NRF_DRV_SPI_PIN_NOT_USED)
    {
       nrf_gpio_pin_set(p_cb->ss_pin);
    }

The NRF_DRV_SPI_PIN_NOT_USEDis defined as 0xFF, do I need to change it? Is there any other way to do this?

Thank you for the help,

Jorge Costa

[RK]

Where is this code you're seeing, because I'm looking at the driver in my directory and it correctly clears the pin

if (p_cb->ss_pin != NRF_DRV_SPI_PIN_NOT_USED)
{
    nrf_gpio_pin_clear(p_cb->ss_pin);
}

I don't see a line like you have above, it looks to me like the clear, which is correct, was commented out and replaced with a set.

So what exact line of what file are you looking at and you might want to redownload the SDK and check the code didn't get changed by mistake.