Red Giant Serial Windows Not Working: Understanding the Issue

When using an Arduino as a WinUSB device, communicating with USB endpoints through winusb.sys can be challenging. In this article, we'll explore the issue of red giant serial windows not working and provide potential solutions.

The problem arises when resetting the Arduino Micro or power cycling it causes the PC to lose connection to the serial data stream. This is because the processor's built-in USB interface is reset along with the rest of the board, leading to the virtual COM port disappearing from the PC side.

To understand the issue better, let's take a closer look at how serial communication works in this setup. The PC application uses the Arduino as a WinUSB device and communicates with it using winusb.sys. When the processor resets, the USB interface goes away, causing the PC application to lose connection to the serial data stream.

One possible solution is to use a UART cable that includes a converter chip. This allows the USB virtual COM port to remain active even when the Arduino Micro resets. Another option is to close and re-open the app to reset the USB interface and restore communication.

However, if this issue persists, it's essential to identify the root cause of the problem. If resetting the Arduino Micro causes the PC application to lose connection, it may be due to a baudrate mismatch between the Arduino and the PC application. In such cases, setting a specific baudrate, like 1200 baud, can help establish communication.

In conclusion, understanding the issue with red giant serial windows not working requires knowledge of how WinUSB devices communicate with USB endpoints through winusb.sys. By exploring potential solutions, including using UART cables or closing and re-opening the app, users can troubleshoot and resolve this common problem.

* Resetting the Arduino Micro can cause the PC to lose connection to the serial data stream.

* Using a UART cable with a converter chip can help maintain communication even when the Arduino resets.

* Closing and re-opening the app can also reset the USB interface and restore communication.

* Identifying the root cause of the problem, such as a baudrate mismatch, is essential to resolving the issue.

Red giant serial windows not working