Tool/software: Linux
hello ,everyone:
I bought a BB-BLACK development board ——REV C, but when I tested it with the kernel's own SPI program-"spidev_test.c", I found no data was received。
when i use command "cat /sys/devices/platform/slots" ,i got
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln.
but other people solution I get from Internet is
- 0: 54:PF---
- 1: 55:PF---
- 2: 56:PF---
- 3: 57:PF---
- 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
- 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
- 6: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-UART1
also when i use command "ls /dev/spi*" ,i got
/dev/spidev1.0 /dev/spidev1.1 /dev/spidev2.0 /dev/spidev2.1
also when i use command "ls /lib/firmware/BB-SPI*" ,i got
/lib/firmware/BB-SPI0-MCP3008-00A0.dtbo /lib/firmware/BB-SPIDEV0-00A0.dtbo /lib/firmware/BB-SPIDEV1-00A0.dtbo /lib/firmware/BB-SPIDEV1A1-00A0.dtbo
can everyone help me?
thank you !
