Strange issue uploading code using UPDI megaTinyCore

spiralbrain · January 11, 2022, 3:24pm

I am using the SpenceKonde / megaTinyCore to program the ATtiny404 using CH340 serial UPDI.

When I click upload, It says

Compilation complete.
Upload error: A programmer is required to upload

But when I select Upload using programmer, it uploads.

Compilation complete.
SerialUPDI
UPDI programming for Arduino using a serial adapter
Based on pymcuprog, with significant modifications
By Quentin Bolsee and Spence Konde
Version 1.2.0 - June 2021
Using serial port COM4 at 460800 baud.
Target: attiny404
Set fuses: ['2:0x02', '6:0x04', '8:0x00']
Action: write

ptillisch · January 12, 2022, 5:54am

Hi @spiralbrain. Thanks for giving the Arduino IDE 2.0.0 release candidate a try!

This is a known defect, which is being tracked by the Arduino IDE developers here:

github.com/arduino/arduino-ide

Upload button don't works when using a programmer

opened 02:04PM - 24 Aug 20 UTC

sstaub

topic: code type: imperfection

### Describe the problem There are two Upload-related operations: - Upload… - Upload Using Programmer In addition to the menu items (**Sketch > Upload** / **Sketch > Upload Using Programmer**) and keyboard shortcuts (<kbd>**Ctrl**</kbd>+<kbd>**U**</kbd> / <kbd>**Ctrl**</kbd>+<kbd>**Shift**</kbd>+<kbd>**U**</kbd>), an upload operation can be triggered by clicking the button on the Arduino IDE toolbar. Some Arduino boards do not support standard "Upload", so the platform author configured their board definition to do an "**Upload Using Programmer**" operation when the "Upload" button is clicked. This makes the frequent task of uploading to these boards more convenient for the user than having to use the less accessible menu item. 🐛 Arduino IDE does an "**Upload**" operation when the button is clicked even when the board is configured for it to trigger an "**Upload Using Programmer**" operation. ### Expected behavior Arduino IDE does an "**Upload Using Programmer**" operation on "Upload" button click when the board is configured for that behavior. ### Arduino IDE version 7c86f1f ### Operating system All ### Operating system version Any ### Additional context Additional reports: - https://github.com/arduino/arduino-ide/issues/1640 - https://github.com/arduino/arduino-ide/issues/1323 - arduino/arduino-pro-ide#306 - https://github.com/MCUdude/MiniCore/issues/233 - https://forum.arduino.cc/t/strange-issue-uploading-code-using-updi-megatinycore/945896 - https://forum.arduino.cc/t/attiny85-wont-program/1043246 - https://forum.arduino.cc/t/cant-program-attiny85-with-attinycore-v1-5-2/701346 - https://forum.arduino.cc/t/uploading-to-attiny85-gives-error-a-programmer-is-required-to-upload/1065582 - https://forum.arduino.cc/t/usbasp-works-well-on-ide-1-8-19-but-it-does-not-work-on-ide-2-0-3/1085285 ### Issue checklist - [X] I searched for previous reports in [the issue tracker](https://github.com/arduino/arduino-ide/issues?q=) - [X] I verified the problem still occurs when using the latest [nightly build](https://www.arduino.cc/en/software#nightly-builds) - [X] My report contains all necessary details

See this comment for an explanation:

https://github.com/arduino/arduino-ide/issues/103#issuecomment-679467849

If you have a GitHub account, you can subscribe to that issue to get notifications of any new developments related to this subject.

spiralbrain · January 31, 2022, 5:01pm

Thank you!

ptillisch · February 1, 2022, 4:46am

You're welcome. I am glad if I was able to be of assistance.
Regards, Per

system · July 31, 2022, 4:47am

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