AVR32113 Configuration and Use of the Memory Management Unit Documentation
This is the documentation for the data structures, functions, variables, defines, enums, and typedefs in the software for application note AVR32113. It also gives an example of the usage of the MMU.
This software was written for the GNU GCC for AVR32 and IAR Systems compiler for AVR32. Other compilers may or may not work.
All AVR32 devices with a MMU can be used. This example has been tested with the following setup:
- STK1000 development kit
- AP7000 top board for STK1000 development kit
CPU speed: 20 MHz
This example uses the switches, LEDs and RGB LEDs on the STK1000 card. They must be connected by the following scheme for the example to work out of the box.
- The header LED must be connected with a flat ribbon cable to J3 on GPIO
- The header RGB must be connected with a flat ribbon cable to J6 on GPIO
- The header SWITCH must be connected with a flat ribbon cable to J1 on GPIO
The application note uses the GPIO peripheral and USART1 peripheral, these must be enabled on the daughter board and routed to the development kit.
For the STK1000 combined with STK1002 (AP7000) the switches on the daughter board need to be adjusted as followed:
- SW2 - set in PS2A/MMCI/USART1 position
- SW4 - set in GPIO/PS2B position
- SW6 - set in GPIO position
The USART1 have the following setup, and must be matched to see the output on the client side:
- bitrate: 57600
- parity: none
- data: 8 bit
- stopbit: 1
The device will start up and output data to the USART1, showing the user a menu to choose which demonstration that should be run.
The application is controlled using the switches on the STK1000 board. The switches have the following functions:
- SW1: run application demo with paging on and segmentation on
- SW0: run application demo with paging off and segmentation on
The LED above the switch will light while the application is running in that mode.
The RGB LEDs are used to give the user a status on the result of a demo run:
- Green - execution success
- Red - execution failed
For more info about Atmel AVR32 visit Atmel AVR32
AVR32 Application Notes
Support mail: avr32@atmel.com
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