identifier "Serial1" is undefined C/C++(20) #1299
Comments
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Hi Guy! In your code, you writed wrong. |
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I actually did not ! Arduino Leonardo has 'Serial1' . 'Serial' is the cable port. I am using the TX/RX pins for streaming through another device. Thank you for your answer. |
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@wbadry I have the same issue with the Mega board (need to access Serial Serial1 and Serial2) |
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I am having this same issue with "MightyCore" and Serial1. I don't much like the quick-fix provided above. Hoping adding traffic to this issue will lead to a better solution. EDIT: So, the linked solution above didn't actually solve my problem but a little lower down was this which after I added the "-mcu=atmega324" to my compilerargs intellisense was fine. |
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I have same problem. My Env is: |
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This was driving me insane, but I found a solution that would survive intellisense config rebuild by adding the following option inside your {
...
"buildPreferences": [["build.extra_flags", "-D__AVR_ATmega2560__"]]
}You can find macros for your board here. EditSwapped |
Another logI have the same problem with these specs SpecsVS Code - 1.64.0 CodeErroridentifier "Serial2" is undefined |
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@JakePorter05 Did you try using my solution? |
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@h3xcat Yes your fix worked, but since this is a very mainstream board it would be nice to have it fixed as it still is a bug that shouldn't need a manual modification by the developer. |
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@h3xcat Thank you. Adding the "buildPreferences" line to arduino.json fixed my many reported errors in intellisense as well. |
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@h3xcat Thx so much. That buildPreferences trick worked beautifully!! |
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i am using the @h3xcat trick, which used to work fine. |
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i've eliminated the error now like this: That seems to make intellisense ignore individual lines. Everything compiles and works fine. |
OS: Windows 10 Version 21H1 (OS Build: 19.043.1081) / UBUNTU 20.04 LTS
VS Code: 1.57.1
Arduino IDE: 1.8.15
Arduino Extension: 0.4.3
Problem:
The
Serial1is undefined. The code compiles with no issues though.arduino.json
{ "sketch": "emulate_data_transfer.ino", "board": "arduino:avr:leonardo", "output": "../build_emulator_data_transfer" }c_cpp_properties.json
{ "version": 4, "configurations": [ { "name": "Arduino", "compilerPath": "C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr\\bin\\avr-g++", "compilerArgs": [ "-w", "-std=gnu++11", "-fpermissive", "-fno-exceptions", "-ffunction-sections", "-fdata-sections", "-fno-threadsafe-statics", "-Wno-error=narrowing" ], "intelliSenseMode": "gcc-x64", "includePath": [ "C:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino", "C:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\leonardo", "C:\\Users\\WALEED ELBADRY\\Documents\\Arduino\\libraries\\TimerOne", "c:\\program files (x86)\\arduino\\hardware\\tools\\avr\\lib\\gcc\\avr\\7.3.0\\include", "c:\\program files (x86)\\arduino\\hardware\\tools\\avr\\lib\\gcc\\avr\\7.3.0\\include-fixed", "c:\\program files (x86)\\arduino\\hardware\\tools\\avr\\avr\\include" ], "forcedInclude": [ "C:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino\\Arduino.h" ], "cStandard": "c11", "cppStandard": "c++11", "defines": [ "F_CPU=16000000L", "ARDUINO=10815", "ARDUINO_AVR_LEONARDO", "ARDUINO_ARCH_AVR", "USB_VID=0x2341", "USB_PID=0x8036", "USB_MANUFACTURER=\"Unknown\"", "USB_PRODUCT=\"Arduino Leonardo\"", "__DBL_MIN_EXP__=(-125)", "__HQ_FBIT__=15", "__cpp_attributes=200809", "__UINT_LEAST16_MAX__=0xffffU", "__ATOMIC_ACQUIRE=2", "__SFRACT_IBIT__=0", "__FLT_MIN__=1.17549435e-38F", "__GCC_IEC_559_COMPLEX=0", "__BUILTIN_AVR_SLEEP=1", "__BUILTIN_AVR_COUNTLSULLK=1", "__cpp_aggregate_nsdmi=201304", "__BUILTIN_AVR_COUNTLSULLR=1", "__UFRACT_MAX__=0XFFFFP-16UR", "__UINT_LEAST8_TYPE__=unsigned char", "__DQ_FBIT__=63", "__INTMAX_C(c)=c ## 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Serial1remains undefined.The text was updated successfully, but these errors were encountered: