Imx6 - Configuring SPI in Application Level

narreddiprakash — Wed, 23 May 2018 10:41:37 GMT

Hello,

I am using IMX6-duallite-A9 SOC for accessing a tuner via SPI-3 in that SOC.

My query is regarding to use SPI in user level application like configuring SPI in application itself and then exchanging data.

1. What are the dependencies to use SPI_3.? (I had done PIN Muxing, Clock enabled (CCM_CCGR1 register) I also enabled GPIO2_IO6 pin as an interrupt pin to transmit data from SPI_3).

2. Is it necessary to enable the SPI_3 in DTS for application level use.?

The code is attached at attachments, please refer.

Please respond as soon as possible

Re: Imx6 - Configuring SPI in Application Level

Carlos_Musich — Mon, 28 May 2018 19:41:12 GMT

Hi,

In the following document, I explain the way in which I developed a SPI driver in Application Level. You will find it helpful, you just need to adapt the read and write functions to communicated with your device.

Interfacing FXLS8471Q with i.MX6Q

On the other hand, in the following thread I explain how to enable the spidev driver including the device tree and how to test it. This will be helpful too.

How to check if SPI is working?

Regards,
Carlos
NXP Technical Support
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

topic Imx6 - Configuring SPI in Application Level in i.MX Processors

Imx6 - Configuring SPI in Application Level

Re: Imx6 - Configuring SPI in Application Level