topic Re: Does LS1046 has SPI loop back option ? in Layerscape

Does LS1046 has SPI loop back option ?

TrinathK — Tue, 01 Nov 2022 08:50:57 GMT

Hi all,

I didn't found SPI loop back option in LS1046. Does it have a loop back option ? If not suggest me some other way to test its SPI.

Thanks.

Re: Does LS1046 has SPI loop back option ?

yipingwang — Fri, 04 Nov 2022 08:33:37 GMT

Are you looking for software loopback option?

You can connect MOSI and MISO pin in hardware.

Are you referring in any other layerscape device for loop back option?

Re: Does LS1046 has SPI loop back option ?

TrinathK — Fri, 04 Nov 2022 08:51:28 GMT

Hi @yipingwang,

Yes i am looking for software loop back option only. (I didn't find loop back enable bit in SPI control registers). I want to enable and disable loop back option whenever i want to test my SPI interface (BIST purpose).

Thanks.