Microchip Atmega

ATMega128

This port of NuttX to the Amber Web Server from SoC Robotics is partially completed. The Amber Web Server is based on an Microchip ATMega128.

Atmega1284P

The Atmega1284P is a chip from Microchip ("inherited" from Atmel) with the following features:

• 16MHz 8bit AVR RISC Processor
• 128Kbyte Flash
• 16Kbyte RAM
• 4Kbyte EEPROM
• 2 High Speed Serial Ports
• 2 8-bit Timer/Counters
• 2 16-bit Timer/Counter
• 1 Master/Slave SPI
• 1 I2C controller (aka Two-Wire interface)
• 8Ch 10bit Analog Input port
• up to 32 GPIOs
• Watchdog timer
• Real Time Clock
• JTAG/OCD Interface

AVR ATMega2560

Extension of the AVR architecture to support the ATMega2560 and specifi support for the Arduion MEGA2560 board were contributed by Dimitry Kloper and first released in NuttX-7.14.

Clock Configuration

System Timer

Peripheral Support

The following list indicates peripherals supported in NuttX:

Peripheral Support Notes

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GPIO PWM ADC RTC WTD I2C SPI TIMER UART Yes No No No No No No Yes Yes

UART

UART is implemented using interrupts. The chip doesn't support DMA.

TIMER

The TIMER peripheral is exposed as standard timer.

Supported Boards

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