Block diagram | Evaluation Board | Download | Buy MMsam7s

Features

AT91SAM7S microcontroller

• 32-bit ARM7TDMI core
• From 32 to 256kB in system programmable flash memory
• From 8 to 64kB RAM memory
• 3 timers with input capture, output compare and PWM functions 
• Periodic Interval timer
• Real-time Timer
• Four-channel 16-bit PWM controller
• 2 USART interfaces
• Debug Unit
• One Synchronous Serial Controller
• I2C interface
• SPI interface
• USB interface
• 8-channel 10-bit A/D converter 
• 5V tolerant  I/O ports
• Advanced Interrupt Controller
• Windowed Watchdog
• Power savings modes
• RTC clock
• Single power supply 3.3V (internal 1.8V regulator)
• JTAG interface

MMsam7s minimodule

• Complete, ready to use microprocessor system
• Fast ARM microcontroller AT91SAM7S with up to 55 MIPS throughput
• Serial DataFlash memory 32Mb (4MB)  
• Built-in crystal resonator 18.432MHz
• Built-in voltage regulator 3.3V 400mA
• Module supply voltage: 3.3V or 3.8 - 16V
• 2 x 26 terminals with 0.1" (2.54mm) pitch fitting every prototype board
• Small dimensions:36mm x 36mm (1400x1400mils)
• Available evaluation board and sample applications

Block diagram

A block diagram of MMstr71xf minimodule is shown on the image below:

All signals of the module are led to two 26-pin terminals with 0.1'' (2.54mm) pitch, which simplifies designing of base boards and allows use of module with prototype boards.

Evaluation Board 

In order to facilitate the design of equipment using the minimodule, an evaluation board has been developed EVBsam7s. It includes the following elements:

Socket for the MMsam7s module
Connector with all terminals of the MMsam7s module
Connectors of all peripherals accessible on board
+5V power supply
włącznik zasilania
Power switch
USB port
Two RS232 ports with LED diodes
1-Wire connecor
JTAG connector for in system programming and debugging
connector for 2x16 LCD display
8 LED diodes
4 push-buttons
2 potentiometers
Buzzer
Prototype design area

Download

MMsam7s

MMsam7s Schematics rev1 MMsam7s Schematics rev2 MMsam7s User Manual rev1 MMsam7s User Manual rev2

[90 kB] (1 page, 06/05) [90 kB] (1 page, 02/06) [1 MB]  ( pages, 06/05) [1 MB]  ( pages, 02/06)

AT91SAM7S

Atmel Site  AT91SAM7S Summary  AT91SAM7S Datasheet

[400kB]   (42 pages, 06/05) [3MB]      (495 pages, 04/05)

DataFlash

AT45DB321C Datasheet  Using Atmel's DataFlash

[250 kB]  (40 pages, 06/05) [190 kB]  (30 pages, 11/02)

Demonstration software 

The module and evaluation board are delivered with exemplary software, written in C language with use of Rowley CrossWorks environment. Exemplary software includes:

• LED: simple program showing light effect on the led diodes.
• USART: demonstrates configuring and writing to a UART
• LCD: shows text on LCD with use of 4-bit mode
• ADC: demonstrates use of AD converter,  program displays voltage value and oscilloscope-like effect on the lcd.
• 1-WIRE: program reads temperature from DS18B20 1-wire thermometer and displays it on the lcd.
• DATAFLASH: use of SPI bus and AT45DB321C DataFlash memory
• CLOCK: RTC clock
•  Software  v1.0

Additional examples can be found on: http://www.at91.com/

Buy MMsam7s

Minimodules can be ordered in different configurations with use of selector:
MMsam7sx-d, where:
f - flash size: 64 - 64kB; 128 - 128kB; 256 - 256kB
d - DataFlash size: 0 - not mouted; 1 - 16Mb; 2 - 32Mb
for example: MMsam7s64-2 - minimodule with AT91SAM7S64 (64kB flash), with 32Mb DataFlash. 

Minimodule is sold with CD-ROM, which contains documentations and software.

Note: Net prices