This version (17 Nov 2022 13:56) was approved by Raluca Chis.The Previously approved version (02 Jan 2013 22:37) is available.
Table of Contents
AD-FMComms1-EBZ : Using the reference design
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This particular articl/edocument/design has been retired or deprecated, which means it is no longer maintained or actively updated, even though the devices themselves may be Recommended for New Designs or in Production. This page is here for historical/reference purposes only.
The reference design is a combination of hardware (the FMComms1 Card + the FPGA base platform), the HDL, and the software that is either running on the Microblaze, or ARM Cores.
In all the demos that we support, Linux is a large piece.
Linux Device Drivers
Booting Linux
Normally, when the Linux image is booted, it will search both the LPC and HPC FMC slots for 2 cards. (the same reference design supports MIMO, as a single card). You should see something like this in the kernel log message - which indicates that a single card is plugged into the LPC FMC connector.
# dmesg [snip] at24 0-0051: 256 byte 24c02 EEPROM, writable, 1 bytes/write spi-xcomm: probe of 1-0058 failed with error -5 at24 1-0050: 256 byte 24c02 EEPROM, writable, 1 bytes/write cf_axi_adc 7c820000.cf-ad9643-core-lpc: Device Tree Probing 'cf-ad9643-core-lpc' platform 7c820000.cf-ad9643-core-lpc: Driver cf_axi_adc requests probe deferral cf_axi_adc 7c800000.cf-ad9643-core-hpc: Device Tree Probing 'cf-ad9643-core-hpc' platform 7c800000.cf-ad9643-core-hpc: Driver cf_axi_adc requests probe deferral cf_axi_fft_core 7ee00000.axi-fft: Device Tree Probing 'axi-fft' cf_axi_fft_core 7ee00000.axi-fft: ADI-FFT (0x10061) at 0x7EE00000 mapped to 0xf0160000, DMA-1, DMA-0 probed ad9548 spi0.2: Rev. 0xC6 probed ad9523 spi0.3: probed ad9523-lpc cf_axi_dds 7a020000.cf-ad9122-core-lpc: Device Tree Probing 'cf-ad9122-core-lpc' platform 7a020000.cf-ad9122-core-lpc: Driver cf_axi_dds requests probe deferral cf_axi_dds 7a000000.cf-ad9122-core-hpc: Device Tree Probing 'cf-ad9122-core-hpc' platform 7a000000.cf-ad9122-core-hpc: Driver cf_axi_dds requests probe deferral TCP: cubic registered NET: Registered protocol family 17 cf_axi_adc 7c820000.cf-ad9643-core-lpc: Device Tree Probing 'cf-ad9643-core-lpc' ——-ooooooooooo|oooooooooo—- DCO 0x91 cf_axi_adc 7c820000.cf-ad9643-core-lpc: ADI AIM (0x10061) at 0x7C820000 mapped to 0xf0180000, DMA-0 probed ADC AD9643 as MASTER cf_axi_adc 7c800000.cf-ad9643-core-hpc: Device Tree Probing 'cf-ad9643-core-hpc' platform 7c800000.cf-ad9643-core-hpc: Driver cf_axi_adc requests probe deferral cf_axi_dds 7a020000.cf-ad9122-core-lpc: Device Tree Probing 'cf-ad9122-core-lpc' -o|o DCI 2 cf_axi_dds 7a020000.cf-ad9122-core-lpc: Analog Devices CF_AXI_DDS_DDS MASTER (0x10061) at 0x7A020000 mapped to 0xf01a0000, probed DDS AD9122 cf_axi_dds 7a000000.cf-ad9122-core-hpc: Device Tree Probing 'cf-ad9122-core-hpc' platform 7a000000.cf-ad9122-core-hpc: Driver cf_axi_dds requests probe deferral cf_axi_adc 7c800000.cf-ad9643-core-hpc: Device Tree Probing 'cf-ad9643-core-hpc' platform 7c800000.cf-ad9643-core-hpc: Driver cf_axi_adc requests probe deferral cf_axi_dds 7a000000.cf-ad9122-core-hpc: Device Tree Probing 'cf-ad9122-core-hpc' platform 7a000000.cf-ad9122-core-hpc: Driver cf_axi_dds requests probe deferral cf_axi_adc 7c800000.cf-ad9643-core-hpc: Device Tree Probing 'cf-ad9643-core-hpc' platform 7c800000.cf-ad9643-core-hpc: Driver cf_axi_adc requests probe deferral
You can also check the status of things with:
# cd /sys/bus/iio/devices/ # grep “” iio\:device*/name iio:device0/name:ad8366-lpc iio:device1/name:ad9523-lpc iio:device2/name:adf4351-rx-lpc iio:device3/name:adf4351-tx-lpc iio:device4/name:cf-ad9643-core-lpc iio:device5/name:cf-ad9122-core-lp
Those are the devices that the Linux kernel found.
Running the demo
It's a simple matter of configuring the ethernet on the FPGA platform:
# ifconfig eth0 192.168.1.2 up
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:0A:35:69:1C:00
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:11 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3506 (3.4 KiB) TX bytes:322 (322.0 B)
Interrupt:10 Memory:40e00000-40e0ffff
(or by running the udhcpc client)
and then ensuring that the your host PC is attached to the same subnet as the FPGA platform.
From here you can look at things in the time domain, frequency domain, and control the various “knobs” in the platform.
To find the various “knobs”, they are in the sysfs directory.
# cd /sys/devices/axi.0/40800000.i2c/i2c-0/0-0059/spi_master/spi0/spi0.3/iio:device2 # ls dev name out_altvoltage0_ZD_OUTPUT_frequency out_altvoltage0_ZD_OUTPUT_phase out_altvoltage0_ZD_OUTPUT_raw out_altvoltage0_clk_src_vcxo_en out_altvoltage1_DAC_CLK_frequency out_altvoltage1_DAC_CLK_phase out_altvoltage1_DAC_CLK_raw out_altvoltage1_clk_src_vcxo_en out_altvoltage2_ADC_CLK_frequency out_altvoltage2_ADC_CLK_phase out_altvoltage2_ADC_CLK_raw out_altvoltage2_clk_src_vcxo_en out_altvoltage3_clk_src_vcxo_en out_altvoltage4_DAC_REF_CLK_frequency out_altvoltage4_DAC_REF_CLK_phase out_altvoltage4_DAC_REF_CLK_raw out_altvoltage4_clk_src_vco2_en out_altvoltage5_TX_LO_REF_CLK_frequency out_altvoltage5_TX_LO_REF_CLK_phase out_altvoltage5_TX_LO_REF_CLK_raw out_altvoltage5_clk_src_vco2_en out_altvoltage6_DAC_DCO_CLK_frequency out_altvoltage6_DAC_DCO_CLK_phase out_altvoltage6_DAC_DCO_CLK_raw out_altvoltage6_clk_src_vco2_en out_altvoltage7_clk_src_vco2_en out_altvoltage8_ADC_SYNC_CLK_frequency out_altvoltage8_ADC_SYNC_CLK_phase out_altvoltage8_ADC_SYNC_CLK_raw out_altvoltage8_clk_src_vco2_en out_altvoltage9_RX_LO_REF_CLK_frequency out_altvoltage9_RX_LO_REF_CLK_phase out_altvoltage9_RX_LO_REF_CLK_raw out_altvoltage9_clk_src_vco2_en status store_eeprom subsystem sync uevent vco1_frequency vco2_frequency vco_frequency_available
You can echo or cat into these files to change the various options.
# cat out_altvoltage1_DAC_CLK_frequency 491520000 # echo 500000000 > out_altvoltage1_DAC_CLK_frequency # cat out_altvoltage1_DAC_CLK_frequency 983040000 # echo 400000000 > out_altvoltage1_DAC_CLK_frequency # cat out_altvoltage1_DAC_CLK_frequency 491520000
Just like if you were trying to program the part with specific frequencies, there are only so many options you can pick, so it attempts to pick the “closest” option.
FMC FRU EEPROM Utility
The FRU EEPROM responds to I2C Slave address 0x51.
Dump FRU Board Information
This specifies any shell prompt running on the target
# fru_dump -i /sys/bus/i2c/devices/0-0051/eeprom -b read 256 bytes from /sys/bus/i2c/devices/0-0051/eeprom Date of Man : Tue Sep 18 16:30:00 2012 Manufacture : Analog Devices Product Name : FMC Comms 1 Serial Number: D836081 Part Number : AD-FMCOMMS1-EBZ Board Rev : B
Dump FRU Power Information
This specifies any shell prompt running on the target
# fru_dump -i /sys/bus/i2c/devices/0-0051/eeprom -p read 256 bytes from /sys/bus/i2c/devices/0-0051/eeprom DC Load Output number: 0 (P1 VADJ) Nominal Volts: 2500 (mV) minimum voltage: 1800 (mV) maximum voltage: 2500 (mV) Ripple and Noise pk-pk 0000 (mV) Minimum current load 0000 (mA) Maximum current load 0000 (mA) DC Load Output number: 1 (P1 3P3V) Nominal Volts: 3300 (mV) minimum voltage: 2970 (mV) maximum voltage: 3630 (mV) Ripple and Noise pk-pk 0000 (mV) Minimum current load 0000 (mA) Maximum current load 3000 (mA) DC Load Output number: 2 (P1 12P0V) Nominal Volts: 12000 (mV) minimum voltage: 10800 (mV) maximum voltage: 13200 (mV) Ripple and Noise pk-pk 0000 (mV) Minimum current load 0000 (mA) Maximum current load 1000 (mA) DC Output Output Number: 3 (P1 VIO_B_M2C) Nominal volts: 0 (mV) Maximum negative deviation: 0 (mV) Maximum positive deviation: 0 (mV) Ripple and Noise pk-pk: 0 (mV) Minimum current draw: 0 (mA) Maximum current draw: 0 (mA) DC Output Output Number: 4 (P1 VREF_A_M2C) Nominal volts: 0 (mV) Maximum negative deviation: 0 (mV) Maximum positive deviation: 0 (mV) Ripple and Noise pk-pk: 0 (mV) Minimum current draw: 0 (mA) Maximum current draw: 0 (mA) DC Output Output Number: 5 (P1 VREF_B_M2C) Nominal volts: 0 (mV) Maximum negative deviation: 0 (mV) Maximum positive deviation: 0 (mV) Ripple and Noise pk-pk: 0 (mV) Minimum current draw: 0 (mA) Maximum current draw: 0 (mA)
Dump FRU Connector Information
This specifies any shell prompt running on the target
# fru_dump -i /sys/bus/i2c/devices/0-0051/eeprom -c read 256 bytes from /sys/bus/i2c/devices/0-0051/eeprom Single Width Card P1 is LPC P1 Bank A Signals needed 68 P1 Bank B Signals needed 0 P1 GBT Transceivers needed 0 Max JTAG Clock 0
AD-FMCOMMS1-EBZ Calibration EEPROM Utility
The Calibration EEPROM responds to I2C Slave address 0x55.
Query best match calibration set for a given Frequency
This specifies any shell prompt running on the target
# xcomm_cal -f 2400 -s /sys/bus/i2c/devices/0-0055/eeprom --- Best match ENTRY 1 --- Calibration Frequency: 2400 MHz DAC I Phase Adjust: 357 DAC Q Phase Adjust: 0 DAC I Offset: 214 DAC Q Offset: 25 DAC I Full Scale Adj: 401 DAC Q Full Scale Adj: 401 ADC I Offset: -2 ADC Q Offset: -34 ADC I Gain Adj: 32853 ADC Q Gain Adj: 32768
resources/fpga/xilinx/fmc/ad-fmcomms1-ebz/reference_design.txt · Last modified: 15 Nov 2022 16:17 by Raluca Chis