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macOS Catalina で M5StickCに書き込みできない

1. Connecting........_____....を繰り返し、M5StickCへ書き込みできない。

esptool.py v2.8-dev
Serial port /dev/cu.usbserial-xxxxxxx
Connecting........_____....._____....._____....._____....._____....._____....._____

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

【暫定回避】
G0とGNDをジャンパーでつないで強制的に書き込みモードにする。

【解決策】
- CP210x USB - UART ブリッジ VCP ドライバーをインストールすることで解決しました!(2019/11/28)
Macintosh OSX (v5.2.2) 用ダウンロード
https://jp.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

2. Arduino-ESP32でコンパイルが通らない。

macOS Catalinaは64bitのアプリしか動作しないのでArduinoのコンパイルが通りません。

【暫定回避】
Arduino IDEのbeta版1.9.0をインストールすると解決します。
安定版とbeta版では、Arduino IDEのアイコンの色が異なります。
https://www.arduino.cc/download_handler.php?f=/ide_beta/arduino-1.9.0-beta-macosx.zip

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