I am working with "Xilinx Spartan-6 FPGA LX9 MicroBoard" and I have installed a uClinux with microblaze 3.12.0 kernel.
DS18B20 is connected to IP-Core xps-gpio.
The UCF configuration for DS18B20 is the next.
# 1-wire interface.# External pull-up is 680 Ohms requiring approximately 5mA to drive the line Low.NET axi_gpio_0_GPIO_IO_pin LOC = "E18" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 8;
In the kernel configuration I have added the driver for "1-wire Bus Masters -> GPIO 1-wire busmaster" and I get the next message in the console output:
"Driver for 1-wire Dallas network protocol."
The problem is that i can't find my device in sysfs? Any suggestion why i can't detect my device? How can I link the sensor with the GPIO or initialize the sistem to detect it?
The driver should check connection every 10 seconds but I dont see any signal in the GPIO pin.
Thank you in advance and best regards,