crystal-11 AVR Wizard
Generates peripheral init code for the ATmega32A from a settings form in VS Code.
Pick your settings for GPIO, USART, ADC, timers, SPI, I2C and external interrupts, click Generate, and you get a main.c that builds with avr-gcc. You can save the file, or create a project folder that's ready to build and flash.
Named after 11.0592 MHz, the crystal that gives 0% error at standard UART baud rates.
Features
- Wizard pages for GPIO, USART, ADC, Timer 0/1/2, SPI, I2C (TWI) and INT0/INT1/INT2
- Generates avr-gcc / avr-libc C code for the ATmega32A at any clock (default 11.0592 MHz)
- Create Project makes a folder with
main.c, C/C++ IntelliSense settings and a build task (Ctrl/Cmd+Shift+B builds main.hex)
- Flash a
.hex with avrdude (USBasp, AVRISP mkII, Arduino as ISP, STK500)
- Finds
avr-gcc and avrdude by itself: PATH, Homebrew, apt, Arduino IDE, Microchip Studio, WinAVR or Scoop. If you open a project on a different computer, it updates the project's toolchain paths for you.
Getting started
- Install the extension.
- Open the crystal-11 AVR Wizard view in the Activity Bar, or run crystal-11: Open AVR Code Wizard from the Command Palette.
- Turn on the peripherals you need, click Generate Code, then Create Project or Save main.c.
To flash, right-click a .hex file and choose crystal-11: Flash to Device, or run that command from the Command Palette.
Commands
| Command |
What it does |
crystal-11: Open AVR Code Wizard |
Opens the wizard |
crystal-11: Check avr-gcc Installation |
Shows where avr-gcc and avrdude were found, or how to install them |
crystal-11: Flash to Device |
Programs a .hex with avrdude |
Settings
All settings are optional. Leave the paths empty and the extension finds the tools itself.
| Setting |
Default |
Description |
crystal11.avrGccPath |
(empty) |
Path to avr-gcc |
crystal11.avrdudePath |
(empty) |
Path to avrdude |
crystal11.programmer |
usbasp |
ISP programmer type |
crystal11.avrdudePort |
usb |
avrdude port (usb, COM3, /dev/ttyUSB0, …) |
crystal11.avrdudeExtra |
(empty) |
Extra avrdude flags |
Requirements
- avr-gcc to build the generated code
- avrdude to flash
The easiest way to get both on Windows, macOS or Linux is to install the Arduino IDE. crystal-11 finds the tools it installs. crystal-11: Check avr-gcc Installation shows other options for your OS. The wizard can still generate code without these tools.
Limitations
- ATmega32A only.
- Compare and capture registers (OCR0, OCR1A/B, ICR1, OCR2) are set to 0. Set the values you need in your own code.
- Timer output pins (OC0, OC1A, OC1B, OC2) are left disconnected.
License
MIT
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