rpi2 support

[km4efp]

Email me at km4efp at yahoo Thank you

[km4efp]

People say this works flawless for wideband fm https://github.com/markondej/fm_transmitter

Apparently their solution is to get rid of using the dma controller for output. I have someone testing your code soon hopefully by just trying to replace 0x20000000 with 0x3F000000 in both instances but I am unsure if it will work. I think if you can port the github above to nbfm it will be a much more elagant cross platform solution.

Also this code is based on older version of markondej but with lots of comments to understand whats going on https://github.com/asmello/fm_transmitter

Another https://github.com/SandPox/fm_transmitter

Here is another source to check for solutions this is the original and simplest code for pi2 to the best of my knowledge translated as pdf http://yosemitefoothills.com/ACM_Workshop_Notes/TranslationOfNetBuffaloPaper.pdf

translated through google https://translate.googleusercontent.com/translate_c?depth=1&hl=en&nv=1&rurl=translate.google.com&sl=auto&tl=en&u=http://netbuffalo.doorblog.jp/archives/5064702.html&usg=ALkJrhiorbeAelQvNITOnajT5LPueck8ZA

I hope there is enough interest for you to port your code to rpi2. I have people wanting to use my foxhunt transmitter script on rpi2's and it uses your nbfm. I think a lot more people than you or me think are actually out there using it.

I appreciate all the work you've done so far. I'm still learning a little bit more everyday or I would try to tackle it. Thank you.

[km4efp]

Here is the results from kd0whb

Troubleshooting NBFM and Pifox

NBFM + Pifox Raspberry Pi 2 troubleshooting

•Downloaded NBFM and Pifox and put them in folders in home directory of the pi.

•Went to directory and opened the file. Replaced the two instances of 0x20000000

with 0x3F000000

then ran

gcc -o3 -lm -std=c99 -o nbfm nbfm.c

It returned

pi@raspberrypi ~/nbfm/NBFM-master $ sudo gcc -o3 -lm -std=c99 -o nbfm.c

/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../arm-linux-gnueabihf/crt1.o: In function `_start':

(.text+0x34): undefined reference to `main'

collect2: ld returned 1 exit status

And gave me the file.

Now went to the pifox directory and replaced the file the new NBFM

Now opened pifox and changed the settings to

Foxver=113

Callsign=KD0WHB

Message='Hello this is a test 1234567'

Foxtime=0

Autofox=0

Foxbutton=0

Vox=0

Voice=1

Packet=0

Frequency=146.565

Interval=10

Plays=0

ppM=-21

Deviation=5

Preemphasis=400

Tone=0

ToneFreq=110.9

Power=7

Ran sudo apt-get update

Ran sudo apt-get upgrade

Ran sudo-apt-get install git-core

Ran sudo apt-get install festival

Installed and build wiringpi

Rebooted the Pi

Ran pifox.sh under sudo

The pi seems to transmit random carriers, some lasting up to 30 seconds, some only a few seconds. There is no audio with the carriers other than a low pitch

After waiting a while for the random carriers to key up and unkey, there is a steady carrier that never unkeys

Pi now froze and can’t get in through SSH, have to Reboot.