i.MX ProcessorsのトピックRe: How to test my spi interface?

How to test my spi interface?

mingmingyuan — Tue, 26 May 2015 00:16:00 GMT

board:sambaSD

system:linux 3.0.35

I want to test my spi interface and ensure my spi interface can send and receive data. Can you tell me how to test this?

igorpadykov — Tue, 26 May 2015 04:04:36 GMT

Hi mingming

one can look at imx-test-x.x.x package (included in ltib), attached

Best regards

igor

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mingmingyuan — Thu, 28 May 2015 23:46:25 GMT

hi sir:

thanks for your help.

can you tell me how to connect hardware?

igorpadykov — Fri, 29 May 2015 02:04:49 GMT

Hi mingming

I think you can set loopback mode:

ECSPIx_TESTREG bit LBC

~igor

mingmingyuan — Mon, 01 Jun 2015 07:54:04 GMT

dear sir:

I don't know how to set loopback, can you guide me or give me some documents?

thanks

mingmingyuan — Mon, 01 Jun 2015 08:00:46 GMT

dear sir:

whether I need to connect MISO to MOSI for test?

thanks

igorpadykov — Mon, 01 Jun 2015 12:14:09 GMT

please read Chapter 21

Enhanced Configurable SPI (ECSPI)

i.MX 6Dual/6Quad Applications Processor Reference Manual.

Yes one can connect MISO to MOSI.

~igor