SPI in non-blocking mode ?

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 13:17:26 GMT

ok, thanks you.

RE: SPI in non-blocking mode ?

Petter Myhre — Thu, 11 May 2017 13:05:08 GMT

If an event handler was provided in the @ref nrf_drv_spi_init call, this function returns immediately and the handler is called when the transfer is done - This is non-blocking...

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 13:04:00 GMT

yes, I did, but as described in the documentation, nrf_drv_spi_transfer function perfoms transfer in blocking mode :

/**

@brief Function for starting the SPI data transfer.
If an event handler was provided in the @ref nrf_drv_spi_init call, this function
returns immediately and the handler is called when the transfer is done.
Otherwise, the transfer is performed in blocking mode, which means that this function
returns when the transfer is finished.

However, nrf_drv_spi_xfer is non-blocking, that's what is mentioned in the documentation.

RE: SPI in non-blocking mode ?

Petter Myhre — Thu, 11 May 2017 12:52:18 GMT

You can use nrf_drv_spi_transfer(). Have you looked at the SPI Master example? It is non-blocking. Other than that I recommend checking the returned error codes of nrf_drv_spi_init() and nrf_drv_spi_transfer(). Are the NRF_SUCCESS (0x00000000)?

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 12:20:20 GMT

I update, my code, i want just to be sure that writing data is made in non-blocking mode, it's the case with this configuration?

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 10:39:16 GMT

done! IRQ means the handler.

RE: SPI in non-blocking mode ?

Petter Myhre — Thu, 11 May 2017 10:36:57 GMT

That is what you are actually doing? What do you mean? Maybe you can edit your question and include the code you are actually using? What IRQ are you talking about?

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 10:35:09 GMT

That's what I am actually doing, in non-blocking mode, I use the function nrf_drv_spi_xfer , That's right? If it is, should I call it inside or outside the IRQ ?

RE: SPI in non-blocking mode ?

Petter Myhre — Thu, 11 May 2017 10:32:11 GMT

Why are you using the 5 wire implementation? This is usually used for serialization. Maybe you can try using the SPI driver instead? "nrf_drv_spi.h"?

RE: SPI in non-blocking mode ?

acha — Thu, 11 May 2017 08:49:36 GMT

SDK 12.2.0

RE: SPI in non-blocking mode ?

Petter Myhre — Thu, 11 May 2017 08:40:00 GMT

Which SDK version are you using?