Compatibility with Teensy 3.x

[ghost]

No description provided.

[TMRh20]

It compiles now for Teensy 2 & 3 boards, but I do not have a board for testing. Please let me know if there are any problems.

[ghost]

Now it compiles, but doesn't work. I don't know if this helps, but this fork works perfectly on teensy 3.x - https://github.com/sumotoyy/RF24 (edited link, earlier link was incorrect)

[TMRh20]

Yeah, that definitely helps, but also adds to my confusion somewhat. I took a good look through the code, and from what I can tell, the main issues with the Teensy would revolve around the printf stuff, but the radio should work otherwise unless I made a mistake somewhere.
Beyond that, the linked repo includes some additional printf related changes for the Due that don't all seem to be required from what I can tell, so unfortunatey I'm still not completely clear on what is specifically required for the Teensy vs the Due.
If you don't mind me asking, what happens if you don't include printf.h and remove printf_begin(), do you get any output from radio.printDetails(); on the Teensy with the current code? Does the radio not work at all? Without the hardware or a complete understanding of the differences, I'm kind of limited in what I can do, so can't promise much as far as getting this working soon.

[luizrrocha]

TMRh20, my 2 cents: the sumotoyy fork has a delayMicroseconds(10) in startWrite....

[TMRh20]

Ok, I think commit 1d18015 will address the issue.

I've added a delay to startWrite for non-Arduino and Teensy boards, and have modified the standard radio.write() to remove the need for a delay on all boards. It passes all my tests, so hopefully this will do the trick.

[ghost]

Hi , i tried to build Getting started example with arduino and teenseyduino on teensy 3.1 board. and the following errors occur:

any suggestions?

Arduino: 1.6.1 (Mac OS X), TD: 1.21-beta10, Board: "Teensy 3.1, Serial, 16 MHz (No USB), Italian"

Build options changed, rebuilding all
In file included from /Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/WProgram.h:11:0,
from /Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/Arduino.h:1,
from /Users/antdem/Documents/Arduino/libraries/RF24/arch/Teensy/RF24_arch_config.h:6,
from /Users/antdem/Documents/Arduino/libraries/RF24/RF24_config.h:58,
from /Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:10:
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp: In member function 'void RF24::print_byte_register(const char_, uint8_t, uint8_t)':
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:49: error: expected primary-expression before ')' token
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:436:3: note: in expansion of macro 'printf_P'
printf_P(PSTR("\r\n"));
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp: In member function 'void RF24::print_address_register(const char_, uint8_t, uint8_t)':
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:49: error: expected primary-expression before ')' token
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:456:5: note: in expansion of macro 'printf_P'
printf_P(PSTR(" 0x"));
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:49: error: expected primary-expression before ')' token
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:462:3: note: in expansion of macro 'printf_P'
printf_P(PSTR("\r\n"));
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp: In member function 'void RF24::printDetails()':
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:56:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned short *)(addr))
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:38: note: in definition of macro 'printf_P'
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:604:41: note: in expansion of macro 'pgm_read_word'
printf_P(PSTR("Data Rate\t = %s\r\n"),pgm_read_word(&rf24_datarate_e_str_P[getDataRate()]));
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:56:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned short )(addr))
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:38: note: in definition of macro 'printf_P'
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:605:39: note: in expansion of macro 'pgm_read_word'
printf_P(PSTR("Model\t\t = %s\r\n"),pgm_read_word(&rf24_model_e_str_P[isPVariant()]));
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:56:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned short )(addr))
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:38: note: in definition of macro 'printf_P'
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:606:42: note: in expansion of macro 'pgm_read_word'
printf_P(PSTR("CRC Length\t = %s\r\n"),pgm_read_word(&rf24_crclength_e_str_P[getCRCLength()]));
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:56:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned short *)(addr))
^
/Applications/Arduino.app/Contents/Java/hardware/teensy/avr/cores/teensy3/avr/pgmspace.h:49:38: note: in definition of macro 'printf_P'
#define printf_P(f, ...) printf((f), VA_ARGS)
^
/Users/antdem/Documents/Arduino/libraries/RF24/RF24.cpp:607:42: note: in expansion of macro 'pgm_read_word'
printf_P(PSTR("PA Power\t = %s\r\n"), pgm_read_word(&rf24_pa_dbm_e_str_P[getPALevel()]));
^
Error compiling.

This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

[TMRh20]

In your compile errors:

from /Users/antdem/Documents/Arduino/libraries/RF24/arch/Teensy/RF24_arch_config.h:6,

points to:

  #if ARDUINO < 100
    #include <WProgram.h>

Which seems to indicate you are using an old version of the Arduino IDE? Is this the case?
It seems to compile fine for me using IDE 1.0.6

[ghost]

i'm using arduino 1.6.1 in this case, but i can revert on 1.0.6 to solve.

[TMRh20]

Aha, I believe TeensyDuino for 1.6.1 is still beta, so if it works with 1.0.6 I would probably want to wait for an official release of 1.6.1 to address any issues.

[ghost]

OK thanks!