I’m using the Barebox bootloader on Beaglebone black and I have a script using the SPI interface (spi0: spi@48030000) to communicate with a hardware chip.
When executing the script I get the following output:
SPI error: full duplex unsupported
wolfTPM2_Init failed 0xffffffea: Unknown
Does the Beaglebone Black not support full duplex SPI or do I need to configure something to enable full duplex?
Simple communication on MOSI works (sending 0x1 0x2 …).
Thanks and kind regards,