AnsweredAssumed Answered

SPI2 MISO not working.

Question asked by matthew montoya on Sep 29, 2016
Latest reply on Oct 11, 2016 by matthew montoya

Im having some issues with the spi MISO. The MOSI, CLK, and Chip selects all seem to function correctly on the SPI2 (set up the same was as the blog entry) However to me it seems like something isnt being set properly for the MISO. Its almost like its being configured as an output instead of an input.

The issue is its pulling all output sources to 0, whether im running a loop back test or from an FPGA the outputs are all pulled to 0 when connected to the MISO. Is there perhaps a problem in the kernel configuration for the SPI2 interface?

Im using pins 5 6 7 8 on the LCD connecter as noted above. If i dont connect my MOSI to my MISO my output looks fine, as soon as i connect them my MOSI is only outputting 0x00

 

My entry from the device tree is: MX6QDL_PAD_DISP0_DAT17__ECSPI2_MISO 0x100b1

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