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 |
|---|---|---|
GPIO |
Yes |
|
PWM |
No |
|
ADC |
No |
|
RTC |
No |
|
WTD |
No |
|
I2C |
No |
|
SPI |
No |
|
TIMER |
Yes |
|
UART |
Yes |
UART
UART is implemented using interrupts. The chip doesn’t support DMA.
TIMER
The TIMER peripheral is exposed as standard timer.