PRU-I2C_SPI_master
PRU-I2C_SPI_master copied to clipboard
chanakya-vc
Seems that transfer_one https://github.com/chanakya-vc/PRU-I2C_SPI_master/blob/master/SPI/Driver/pru0_spi-subsystem.c#L88 must call spi_finalize_current_transfer() per specs https://www.kernel.org/doc/Documentation/spi/spi-summary and https://manpages.debian.org/wheezy-backports/linux-manual-3.16/spi_finalize_current_transfer.9.en.html. See for example https://elixir.bootlin.com/linux/latest/source/drivers/spi/spi-bitbang.c#L291
I took some captures with my logic analyzer using the wip_on_spi branch at e08f02f4ab55667062c6e389a8e6a304d954075c. I tried all 4 clock modes, in each case sending the byte `0x60`. I added a...
