Inky Impressions 13 not updating

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1

Running sample code (stripes, image) on a PiZero W, things seem fine:

Detected Spectra 6 13.3 1600 x 1200 (EL133UF1)

is reported and the busy line seems to go high for a bit (busywaits work as expected) but the display itself never updates. The led program works and SPI is set up.

Any debug suggestions?

2

I forgot that the SPI config needs to be tweaked; I happened to try it on another pi where I had an older Inky Expressions and it works. On that one, I have

dtparam=spi=off
dtoverlay=spi0-1cs,cs0_pin=7,no_miso

in config.txt…

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