myriadrf/novena-rf

A 300 MHz to 3800 MHz RF module for the Novena Open Hardware Computing Platform

novena-rf's Issues

baseband corrections for fpga dsp

• dc removal
• iq imbalance

fpga - stream to/from BRAM blocks

For interfacing between EIM with the framer/deframer.

lms-suite fails to build with libi2c-dev installed

Failed to build while compiling driver/host

Work around is to remove libi2c-dev and then compiling
$sudo apt-get remove libi2c-dev

---

[ 4%] Building CXX object CMakeFiles/NovenaRF.dir/home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp.o
In file included from /home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp:26:0:
/usr/include/linux/i2c-dev.h:37:8: error: redefinition of ‘struct i2c_msg’
struct i2c_msg {
^
In file included from /home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp:25:0:
/usr/include/linux/i2c.h:68:8: error: previous definition of ‘struct i2c_msg’
struct i2c_msg {
^
In file included from /home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp:26:0:
/usr/include/linux/i2c-dev.h:89:7: error: redefinition of ‘union i2c_smbus_data’
union i2c_smbus_data {
^
In file included from /home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp:25:0:
/usr/include/linux/i2c.h:128:7: error: previous definition of ‘union i2c_smbus_data’
union i2c_smbus_data {
^
CMakeFiles/NovenaRF.dir/build.make:399: recipe for target 'CMakeFiles/NovenaRF.dir/home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp.o' failed
make[2]: *** [CMakeFiles/NovenaRF.dir/home/ret/Novena-RF/lms-suite/lms-suite/src/src/ConnectionSPI.cpp.o] Error 1
CMakeFiles/Makefile2:60: recipe for target 'CMakeFiles/NovenaRF.dir/all' failed
make[1]: *** [CMakeFiles/NovenaRF.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

need IRQ between FPGA and host

We need to be able to sleep with a timeout for read/writeStream when the stream is not ready. We can select()/poll() on a userspace GPIO from sysfs. Just need to figure out a possible GPIO candidate between the FPGA and the arm. Suggestions appreciated.

direct buffer access calls for RX and TX

The API is almost complete: pothosware/SoapySDR#8

This will give user's direct access to the DMA buffers, which will be a nice optimization when the FPGA sample format can be dealt with in the user's application --

TLDR: avoids data type conversion overhead.

adding mounting holes to pcb

The novena has 3 screw holes near the high-speed header. Would it be possible to add any of them to this daughter board for more secure long term mounting.

fpga - registers for config/readback/settings

• setting time
• getting time
• configuring addresses for BRAM to/from fifo
• lime resets/enables

cordic for FPGA dsp chains

Used for tuning corrections and to tune the LO away from the desired passband. A cordic may be desirable in the RX and TX DSP chains within the FPGA.

kernel - mmap for FPGA register space

mapping to read/write registers on the FPGA from userspace

udev rules for host driver

The rules would set permissions on

• /dev/spidev2.0
• /dev/novena_rf
• /sys/class/gpio/gpio135/* - reset
• /sys/class/gpio/gpio122/* - spi sen

The gpios also have to be exported.

fpga - automatic switching for LMS IOs based on RX/TX state

        --lms control signals
        lms_rxen : out std_logic;
        lms_txen : out std_logic;
        lms_lmsrst : out std_logic;
        mrf_gpio0 : out std_logic;
        mrf_gpio1 : out std_logic;
        mrf_gpio2 : out std_logic;

I dont know what the last three gpios are for, perhaps antenna switches. Currently, these IOs are controlled by a SPI-based state machine controlled by the ARM. It may be desirable to control these based on the ADC/DAC active signals coming from the framer/deframer; for the purposes of automatic antenna switching (if that is indeed their use case).

kernel - mapping for "DMA" space

• need an mmap for the memory space used to read/write stream data

fpga - integrate framer/deframer blocks

libusb is a dependency lms-suite

We don't need libusb1.0, but its a compilation requirement to use the lms-suite inside the NovenaRF module. It may be worth commenting out libusb with ifdefs to avoid this requirement.

_cachedSampleRates not initialized

I ran into some problems with uhd and osmocom tools and also gqrx on the Novena.

turned out that getSampleRate() was being called without _cachedSampleRates having been initialized, resulting in errors like FATAL: map::at or std::out_of_range errors

I chose to add:

_cachedSampleRates[SOAPY_SDR_RX] = 0;
_cachedSampleRates[SOAPY_SDR_TX] = 0;

to the constructor, which solved it.

host - stream read/write activate/deactivate implementation

host - integrate lms-suite into soapysdr module

Mapping API calls in the lms-suite to function overloads of SoapySDR::Device.hpp:
https://github.com/pothosware/SoapySDR/blob/master/include/SoapySDR/Device.hpp

error while building lms-suite

Hi All,
while building lms-suite with this command :
'mkdir build && cd build && cmake .. && cmake --build .'
it outputs :

-- The C compiler identification is GNU 4.8.4
-- The CXX compiler identification is GNU 4.8.4
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found wxWidgets: TRUE
-- Configuring done
-- Generating done
-- Build files have been written to: /home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/build
Scanning dependencies of target lms-suite
[ 1%] Building CXX object CMakeFiles/lms-suite.dir/src/CommonUtilities.cpp.o
[ 3%] Building CXX object CMakeFiles/lms-suite.dir/src/ConnectionCOM.cpp.o
/home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/src/ConnectionCOM.cpp:332:2: warning: #warning Currently searching only for ACM connections [-Wcpp]
#warning Currently searching only for ACM connections
^
[ 4%] Building CXX object CMakeFiles/lms-suite.dir/src/ConnectionManager.cpp.o
[ 6%] Building CXX object CMakeFiles/lms-suite.dir/src/ConnectionSPI.cpp.o
/home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/src/ConnectionSPI.cpp: In function ‘bool IsNovenaBoard()’:
/home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/src/ConnectionSPI.cpp:40:30: error: elements of array ‘i2c_msg messages [2]’ have incomplete type
struct i2c_msg messages[2];
^
/home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/src/ConnectionSPI.cpp:40:30: error: storage size of ‘messages’ isn’t known
/home/gasser.alaaeldien/lms-suite-master/lms-suite-master/LMS6002D/lms-suite/src/src/ConnectionSPI.cpp:51:25: error: ‘I2C_M_RD’ was not declared in this scope
messages[1].flags = I2C_M_RD;
^
make[2]: *** [CMakeFiles/lms-suite.dir/src/ConnectionSPI.cpp.o] Error 1
make[1]: *** [CMakeFiles/lms-suite.dir/all] Error 2
make: *** [all] Error 2

i don't know what is wrong

kernel - ioctl for EIM config

Compiling issue at make step

hi,

I have an error compiling Novena-FR, at make step I have the following error:

$ make
Scanning dependencies of target NovenaRF
[  4%] Building CXX object CMakeFiles/NovenaRF.dir/Streaming.cpp.o
In file included from /usr/include/features.h:392:0,
                 from /usr/include/c++/5.3.1/arm-slackware-linux-gnueabi/bits/os_defines.h:39,
                 from /usr/include/c++/5.3.1/arm-slackware-linux-gnueabi/bits/c++config.h:482,
                 from /usr/include/c++/5.3.1/cstdint:38,
                 from /tmp/Novena-RF/driver/host/NovenaRegs.hpp:11,
                 from /tmp/Novena-RF/driver/host/NovenaRF.hpp:11,
                 from /tmp/Novena-RF/driver/host/Streaming.cpp:10:
/usr/include/gnu/stubs.h:10:29: fatal error: gnu/stubs-hard.h: No such file or directory
compilation terminated.
CMakeFiles/NovenaRF.dir/build.make:62: recipe for target          CMakeFiles/NovenaRF.dir/Streaming.cpp.o' failed
make[2]: *** [CMakeFiles/NovenaRF.dir/Streaming.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/NovenaRF.dir/all' failed
make[1]: *** [CMakeFiles/NovenaRF.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

Do you know how can I fix this ?

(I'm compiling natively on Novena).

decimation/interpolation chain improvements

I put in a chain of 4 half-bands for both interpolation and decimation by up to 1,2,4,8,or 16. Its not ideal:

• Every filter in the chain is identical (11 taps, clock rate/2), but we could save resources by allowing filters closer to baseband to work at lower rates, or have more taps for a better roll-off.
• The baseband samples could be scaled to compensate for filter gain/loss
• For a quick cheat to deal with output scaling, each filter's output is shifted up by 1. This factor of 2x matches the loss very closely, but large values could "clip" in a messy way.