bolderflight / sbus

Arduino and CMake library for communicating with SBUS receivers and servos.
MIT License
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Compile Error with Arduino #54

Closed martinglass closed 2 years ago

martinglass commented 2 years ago

Trying to use this repo with an Arduino (Mega).

However, Arduino IDE fails to compile successfully, because it says it cannot find these libraries:

include \

include \

include \

include \

The "array" library seems to be a major stumbling block

Can you advise?

martinglass commented 2 years ago

Running the sbus_example, in Arduino IDE with Arduino Mega 2560 gives this error:

_In file included from /Users/xxx/Documents/Arduino/libraries/sbus-main/examples/arduino/sbus_example/sbus_example.ino:36:0: /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:65:8: error: 'array' in namespace 'std' does not name a template type std::array<int16_t, NUM_SBUSCH> ch_; ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:79:15: error: 'array' in namespace 'std' does not name a template type inline std::array<int16_t, NUM_SBUSCH> ch() const {return ch_;} ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:105:8: error: 'array' in namespace 'std' does not name a template type std::array<int16_t, NUM_SBUSCH> ch_; ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:29: error: 'array' in namespace 'std' does not name a template type inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:34: error: expected ',' or '...' before '<' token inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:122:15: error: 'array' in namespace 'std' does not name a template type inline std::array<int16_t, NUM_SBUSCH> ch() const {return ch;} ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h: In member function 'void bfs::SbusTx::ch(int)': /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:65: error: 'ch' was not declared in this scope inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:65: note: suggested alternative: 'ch' inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^~~ ch /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:71: error: 'cmd' was not declared in this scope inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/src/sbus.h:121:71: note: suggested alternative: 'fmod' inline void ch(const std::array<int16_t, NUM_SBUSCH> &cmd) {ch_ = cmd;} ^~~ fmod /Users/xxx/Documents/Arduino/libraries/sbus-main/examples/arduino/sbus_example/sbus_example.ino: At global scope: sbus_example:43:6: error: 'array' in namespace 'std' does not name a template type std::array<int16_t, bfs::SbusRx::NUM_CH()> sbus_data; ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/examples/arduino/sbus_example/sbus_example.ino: In function 'void loop()': sbus_example:57:5: error: 'sbus_data' was not declared in this scope sbus_data = sbus_rx.ch(); ^~~~~ /Users/xxx/Documents/Arduino/libraries/sbus-main/examples/arduino/sbus_example/sbus_example.ino:57:5: note: suggested alternative: 'sbus_tx' sbus_data = sbus_rx.ch(); ^~~~~ sbus_tx sbus_example:57:25: error: 'class bfs::SbusRx' has no member named 'ch'; did you mean 'ch17'? sbus_data = sbusrx.ch(); ^~ ch17 exit status 1 'array' in namespace 'std' does not name a template type

flybrianfly commented 2 years ago

Please note from the installation instructions that AVR microcontrollers are not supported, mostly due to the use of std::array.

martinglass commented 2 years ago

Doh, Thanks. I see that now.

Would it be possible to use arrays in a way that works for AVR devices as well as ARM?

It would be useful to AVR users, if this code could run on such devices.

flybrianfly commented 2 years ago

There's some older versions older versions of this library that support AVR; check the checklog. Also, the Embedded Template Library can provide std::array support for AVR.