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Longan-Labs / Arduino_CAN_BUS_MCP2515

Arduino CAN Bus library, MCP2515/MCP2551
https://www.longan-labs.cc/
MIT License
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error compiling for ESP32 dev module #31

Closed protttoy closed 9 months ago

protttoy commented 1 year ago

Error compiling for ESP32 board. ESP32 Arduino core 2.0.6. Windows 11 64bit. Arduino IDE 1.8.19

Error massage from Arduino:

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp: In member function 'byte MCP_CAN::setMsg(long unsigned int, byte, byte, byte, byte*)':

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:751:47: error: no matching function for call to 'min(byte&, int)'

 dta_len     = min(len, MAX_CHAR_IN_MESSAGE);

                                           ^

In file included from c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\algorithm:62,

             from C:\Users\CredoSense Desktop 2\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.6\cores\esp32/Arduino.h:162,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can_dfs.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:47:

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algo.h:3456:5: note: candidate: 'template<class _Tp, class _Compare> _Tp std::min(std::initializer_list<_Tp>, _Compare)'

 min(initializer_list<_Tp> __l, _Compare __comp)

 ^~~

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algo.h:3456:5: note: template argument deduction/substitution failed:

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:751:47: note: mismatched types 'std::initializer_list<_Tp>' and 'unsigned char'

 dta_len     = min(len, MAX_CHAR_IN_MESSAGE);

                                           ^

In file included from c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\algorithm:62,

             from C:\Users\CredoSense Desktop 2\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.6\cores\esp32/Arduino.h:162,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can_dfs.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:47:

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algo.h:3450:5: note: candidate: 'template _Tp std::min(std::initializer_list<_Tp>)'

 min(initializer_list<_Tp> __l)

 ^~~

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algo.h:3450:5: note: template argument deduction/substitution failed:

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:751:47: note: mismatched types 'std::initializer_list<_Tp>' and 'unsigned char'

 dta_len     = min(len, MAX_CHAR_IN_MESSAGE);

                                           ^

In file included from c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\algorithm:61,

             from C:\Users\CredoSense Desktop 2\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.6\cores\esp32/Arduino.h:162,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can_dfs.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:47:

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algobase.h:243:5: note: candidate: 'template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'

 min(const _Tp& __a, const _Tp& __b, _Compare __comp)

 ^~~

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algobase.h:243:5: note: template argument deduction/substitution failed:

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:751:47: note: deduced conflicting types for parameter 'const _Tp' ('unsigned char' and 'int')

 dta_len     = min(len, MAX_CHAR_IN_MESSAGE);

                                           ^

In file included from c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\algorithm:61,

             from C:\Users\CredoSense Desktop 2\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.6\cores\esp32/Arduino.h:162,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can_dfs.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.h:27,

             from C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:47:

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algobase.h:195:5: note: candidate: 'template const _Tp& std::min(const _Tp&, const _Tp&)'

 min(const _Tp& __a, const _Tp& __b)

 ^~~

c:\users\credosense desktop 2\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch5\xtensa-esp32-elf\include\c++\8.4.0\bits\stl_algobase.h:195:5: note: template argument deduction/substitution failed:

C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master\mcp_can.cpp:751:47: note: deduced conflicting types for parameter 'const _Tp' ('unsigned char' and 'int')

 dta_len     = min(len, MAX_CHAR_IN_MESSAGE);

                                           ^

Using library SPI at version 2.0.0 in folder: C:\Users\CredoSense Desktop 2\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.6\libraries\SPI

Using library Aruino_CAN_BUS_MCP2515-master at version 1.0.0 in folder: C:\Users\CredoSense Desktop 2\Documents\Arduino\libraries\Aruino_CAN_BUS_MCP2515-master

exit status 1

Error compiling for board ESP32 Dev Module.

juliandower commented 1 year ago

I managed to fix it using a suggestion from ChatGPT:

The error message says that the function "min" cannot be used with a parameter of type 'byte' and a parameter of type 'int'. This function is used in "mcp_can.cpp" line 751. The issue seems to be caused by the fact that the "min" function is being passed a "byte" and an "int". To resolve this issue, you could cast the "int" to a "byte". Try changing this line:

dta_len = min(len, MAX_CHAR_IN_MESSAGE);

to this:

dta_len = min(len, (byte)MAX_CHAR_IN_MESSAGE);

sidney2007 commented 9 months ago

Already fixed in https://github.com/Longan-Labs/Arduino_CAN_BUS_MCP2515/commit/b62f62065506a30f6eb3aa0f2c7b0757f8d57db9