jamesp6000/picw

Raspberry Pi CW Transmitter

picw's Issues

test-tone option not working

@JamesP6000 Is there a reason, why the --test-tone feature does not work with the current code base?

Error at make

pi@raspberrypi:~/PiCW $ make
cc -Wall -c mailbox.c
g++ -D_GLIBCXX_DEBUG -std=c++11 -Wall -Werror -fmax-errors=5 -Wno-psabi -latomic -lm -DRPI1 mailbox.o PiCW.cpp -pthread -oPiCW
/usr/bin/ld: /tmp/ccdL6y88.o: in function allocMemPool(unsigned int)': PiCW.cpp:(.text+0x138): undefined reference to mem_alloc(int, unsigned int, unsigned int, unsigned int)'
/usr/bin/ld: PiCW.cpp:(.text+0x160): undefined reference to mem_lock(int, unsigned int)' /usr/bin/ld: PiCW.cpp:(.text+0x18c): undefined reference to mapmem(unsigned int, unsigned int)'
/usr/bin/ld: /tmp/ccdL6y88.o: in function deallocMemPool()': PiCW.cpp:(.text+0x2c4): undefined reference to unmapmem(void*, unsigned int)'
/usr/bin/ld: PiCW.cpp:(.text+0x2f0): undefined reference to mem_unlock(int, unsigned int)' /usr/bin/ld: PiCW.cpp:(.text+0x30c): undefined reference to mem_free(int, unsigned int)'
/usr/bin/ld: /tmp/ccdL6y88.o: in function open_mbox()': PiCW.cpp:(.text+0x3c78): undefined reference to mbox_open()'
collect2: error: ld returned 1 exit status
make: *** [makefile:23: PiCW] Error 1

How to add txt file source?

Hello, how to add txt file source or input from other program to PiCW?

Best Regard Kriss

Does not work

@JamesP6000 Does not work
Please tell me what to do?

pi@raspberrypi:~/PiCW $ sudo ./PiCW --freq 10.140e6 --test-tone
Detected Raspberry Pi version 1
PiCW parsed command line options:
TX frequency: 10.140000 MHz
NTP will be used to periodically calibrate the transmission frequency
Will transmit continuous tone on requested frequency. CTRL-C to exit.
Unable to open / create kernel mbox device file, abort!

Unable to compile (Rpi3+ Raspbian)

pi@raspberrypi:~/PiCW $ make
g++ -c -Wall -lm mailbox.c
mailbox.c: In function ‘int mbox_open()’:
mailbox.c:256:52: error: ‘makedev’ was not declared in this scope
if(mknod(LOCAL_DEVICE_FILE_NAME, S_IFCHR|0600, makedev(MAJOR_NUM_A, 0)) >= 0 &&
^~~~~~~
mailbox.c:263:52: error: ‘makedev’ was not declared in this scope
if(mknod(LOCAL_DEVICE_FILE_NAME, S_IFCHR|0600, makedev(MAJOR_NUM_B, 0)) >= 0 &&
^~~~~~~
make: *** [makefile:9: mailbox.o] Error 1

transmission doesn't work

hi! i've compiling with 4.9.
the program works.
It writes "TRASMITTING E E E E" (for example) but on oscilloscope i don't see nothing.
i try also with cw receiver and it's the same.
have u got some idea?
Raspberry PI 3
73's IU5FRT

Wrong frequency

Hi!
I think i've found a bug...
If i specify -f 702300 it transmit on 7.023Mhz ...is it right or wrong?

Cannot compile...any help (dependencies installed!!!)

g++-4.7 -D_GLIBCXX_DEBUG -std=c++11 -Wall -Werror -fmax-errors=5 -lm PiCW.cpp -pthread -oPiCW
PiCW.cpp: In function 'void send_dit_dah(std::atomic&, const char&, const double&, std::mt19937&)':
PiCW.cpp:887:3: error: 'sleep_until' is not a member of 'std::this_thread'
PiCW.cpp:893:5: error: 'sleep_until' is not a member of 'std::this_thread'
PiCW.cpp:901:3: error: 'sleep_until' is not a member of 'std::this_thread'
PiCW.cpp:907:5: error: 'sleep_until' is not a member of 'std::this_thread'
PiCW.cpp: In function 'void am_main(std::atomic&, std::__debug::deque&, std::mutex&, std::condition_variable&, std::__debug::map<char, std::basic_string >&, std::atomic&, std::atomic&, const bool&, const bool&)':
PiCW.cpp:933:7: error: 'sleep_for' is not a member of 'std::this_thread'
compilation terminated due to -fmax-errors=5.
makefile:6: set di istruzioni per l'obiettivo "PiCW" non riuscito
make: *** [PiCW] Errore 1

Compile errors on Raspbian buster (armhf) image from 2020-05-27

Attempting to build under Raspbian buster (armhf) image from 2020-05-27 results in these errors:

pi@raspberrypi:~/hamradio/PiCW $ make
g++ -c -Wall -lm mailbox.c
mailbox.c: In function ‘int mbox_open()’:
mailbox.c:256:52: error: ‘makedev’ was not declared in this scope
if(mknod(LOCAL_DEVICE_FILE_NAME, S_IFCHR|0600, makedev(MAJOR_NUM_A, 0)) >= 0 &&
^~~~~~~
mailbox.c:263:52: error: ‘makedev’ was not declared in this scope
if(mknod(LOCAL_DEVICE_FILE_NAME, S_IFCHR|0600, makedev(MAJOR_NUM_B, 0)) >= 0 &&
^~~~~~~
make: *** [makefile:9: mailbox.o] Error 1

Error: peri_base_virt mmap error!

Hello, just installed on Raspberry Pi 3 Model B Plus Rev 1.3, with os:
Linux raspberrypi 5.15.76-v8+ #1597 SMP PREEMPT Fri Nov 4 12:16:41 GMT 2022 aarch64 GNU/Linux
(lite version, no GUI).

I had some errors during compilation:
error: ‘makedev’ was not declared in this scope
cast to pointer from integer of different size
cast from ‘unsigned char*’ to ‘unsigned int’ loses precision

so I had to change in mailbox.c and PiCW.cpp as follows:
#include <sys/sysmacros.h>
#include
(unsigned) -> (intptr_t) in various places.

Now, after compiling, giving
sudo PiCW --freq 10.140e6 TEST DE N9NNN
issues:

Detected Raspberry Pi version 1
PiCW parsed command line options:
TX frequency: 10.140000 MHz
WPM: 20
NTP will be used to periodically calibrate the transmission frequency
Message to be sent:
"TEST DE N9NNN"
Error: peri_base_virt mmap error!
Exiting with error; caught signal: 11
Segmentation fault

Any idea?
Thanks
Giorgio IU7RAW

Why not a full-blown CW TRX?

Now that this code is done, why not extend it to be a full-blown CW TRX? I can imagine something like:

Connect a straight key to GPIO X.

If GPIO X
  send tone
end if

Or even:

Connect iambic keyer to GPIO X and Y.

Case GPIO
  X
    send dit
    sleep
  Y
    send dah
    sleep
  X+Y
    send dit
    sleep
    send dah
    sleep
End case

SDR can be used to listen for response.