Summary of AVR Code Debugger using AVR microcontroller
This AVR Code Debugger is a lightweight tool that facilitates code debugging without consuming MCU resources. It operates using a single I/O pin connected to a host PC's serial port, capturing output via a VT100 terminal. The system supports frequencies from 1MHz to 20MHz without user configuration and allows developers to send debug statements like `debugXY` by integrating specific firmware commands.
Parts used in the AVR Code Debugger:
- AVR microcontroller
- Single I/O pin
- Serial port (host PC)
- VT100 terminal software
- Debug firmware
AVR Code Debugger is useful tool to help you debug code without require resource in the MCU you are debugging. It only use 1 I/O pin, and is connected to a serial port from the host PC.
Using a VT100 terminal to capture the output from the Debug tool, all of the debug information can be captured. By adding a simple command along with the debug firmware, you can send out debug statements like debugXY(x,y, “test”). The Debugger will adapt to any speed from 1Mhz to 20Mhz without configuration from the user.
For more detail: AVR Code Debugger using AVR microcontroller
- Does the debugger require MCU resources?
No, it helps debug code without requiring resources in the MCU you are debugging. - How many I/O pins does the tool use?
The tool only uses 1 I/O pin. - What connects to the serial port from the host PC?
The single I/O pin of the debugger is connected to a serial port from the host PC. - Can the debugger adapt to different speeds?
Yes, the debugger will adapt to any speed from 1Mhz to 20Mhz without configuration from the user. - What software is used to capture the output?
A VT100 terminal is used to capture the output from the Debug tool. - How do you send debug statements?
You add a simple command along with the debug firmware to send out statements like debugXY(x,y, “test”). - Is user configuration needed for frequency changes?
No, the debugger adapts to speeds between 1Mhz and 20Mhz without configuration from the user.

