topic Re: Embedded linux and i.mx books. in i.MX Processors

Embedded linux and i.mx books.

ssinfod — Fri, 07 Nov 2014 04:17:32 GMT

Hello,

I want to use embedded Linux (yocto) on the i.mx 6 processor. I already booted some dev kit with yocto on it.

Now, I'm looking for some text book that explains how to use the peripheral of the i.mx 6 with Linux. (For example: SPI, I2C, Timer, ATD, Timer, CAN, UART, etc.)

I'm coming from the microcontroller world (Freescale HCS08, HCS12, etc..) and I am a little lost regarding these subjects.

Can anyone suggest me some good text books or tutorial on how to use the i.mx peripheral inside Linux ?

Thanks

ssinfod

Re: Embedded linux and i.mx books.

jimmychan — Fri, 07 Nov 2014 04:44:13 GMT

I think the Linux reference manual and the porting guide in the Yocto BSP documentation are useful for you.

Re: Embedded linux and i.mx books.

igorpadykov — Fri, 07 Nov 2014 05:08:21 GMT

http://www.amazon.com/dp/1783282339

Re: Embedded linux and i.mx books.

ssinfod — Fri, 07 Nov 2014 15:18:52 GMT

Thanks, I ordered and read that book already. It gives a good overview of yocto but I would like more examples on how to use the feature of the i.mx processor.

ssinfod

Re: Embedded linux and i.mx books.

ssinfod — Fri, 07 Nov 2014 15:26:23 GMT

Thanks these documents seems to contains a lot of usefull information.

One last question..

Can you explain to me one last thing. With Freescale MCU, I'm used to write the driver code myself. For example, I could set and get the UART registers (SCI0BD, SCI0DR), baud rate, data bits, etc..

With the Linux (yocto), who is writing the driver for the i.mx ? Is it the Freescale team or the Linux team ?

Where can I see the code for the i.mx peripheral drivers ? (Timer, UART, SPI, I2C) ?

In fact, I would like to see the i.mx peripheral driver code and also example on how to use it.

ssinfod

Re: Embedded linux and i.mx books.

jimmychan — Mon, 10 Nov 2014 03:45:15 GMT

You can find the path of the driver source code in i.MX6 Linux Reference Manual.

For the example on how to use it, you can take the imx-test for reference. (<Yocto_BuildDir>/imx-test-"version")