Hi, 

 

How i can find information for set the fex file, kernel, etc. etc.

for use the spi in userspace?

i don't see in /dev any spidevx.0 device

 

 

The spipart in fex should look like this:

[spi0_para]
spi_used = 1
spi_cs_bitmap = 3
spi_cs0 = port:PI10<2><default><default><default>
spi_cs1 = port:PI14<2><default><default><default>
spi_sclk = port:PI11<2><default><default><default>
spi_mosi = port:PI12<2><default><default><default>
spi_miso = port:PI13<2><default><default><default>

[spi1_para]
spi_used = 0
spi_cs_bitmap = 1
spi_cs0 = port:PA00<3><default><default><default>
spi_cs1 = port:PA04<3><default><default><default>
spi_sclk = port:PA01<3><default><default><default>
spi_mosi = port:PA02<3><default><default><default>
spi_miso = port:PA03<3><default><default><default>

[spi2_para]
spi_used = 0
spi_cs_bitmap = 1
spi_cs0 = port:PC19<3><default><default><default>
spi_cs1 = port:PB13<2><default><default><default>
spi_sclk = port:PC20<3><default><default><default>
spi_mosi = port:PC21<3><default><default><default>
spi_miso = port:PC22<3><default><default><default>

[spi3_para]
spi_used = 0
spi_cs_bitmap = 1
spi_cs0 = port:PA05<3><default><default><default>
spi_cs1 = port:PA09<3><default><default><default>
spi_sclk = port:PA06<3><default><default><default>
spi_mosi = port:PA07<3><default><default><default>
spi_miso = port:PA08<3><default><default><default>

[spi_devices]
spi_dev_num = 1

[spi_board0]
modalias = "spidev"
max_speed_hz = 12000000
bus_num = 0
chip_select = 0
mode = 3
full_duplex = 0
manual_cs = 0

[spi_board1]
modalias = "spidev"
max_speed_hz = 12000000
bus_num = 0
chip_select = 1
mode = 3
full_duplex = 0
manual_cs = 0

Driver is built into kernel, so you only need to alter fex file.

 

Further you might need to check / alter port numbers - they are not exactly from Micro configuration.

I have attached the corect micro.fex for Olinuxino A20 Micro.

 

On UEXT1:

/dev/spidev2.0

/dev/ttyS1

/dev/i2c_2

 

On UEXT2:

/dev/spidev1.0

/dev/ttyS2

/dev/i2c_1

 

 

micro.fex.tar.gz

Wow Thanks !