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uC Atmega

Board set01_01

20130730www.electronics.cat



Picture

set01_01- CPU


Schematic

../data/cpu/set01_01_CPU_88v03small.png

Description


    This board has two 8-bit ports of inputs/outputs. One of them is ready to work with TWI protocol, also known as I2C. Connectivity to the input/output boards is done by set01_04_A cable.

    Serial communication can be done via USB (set01_05) or RS232 (set01_03) using set03_11 cable. These
communication boards can also supply voltage to this board.

    Each function has a different connector size to avoid connectivity mistakes.

    There are three jumpers. One is a test led and the other two allow TWI communication.

   
There is a quartz crystal. Internal fuses should be programmed properly before, or after, programming. Otherwise there would not be enough accuracy for serial communications.

    Programming of this chip is via a USB programmer (set03_09). This programmer has a jumper in order to make slow programming (to set the internal fuses jumper should be connected) or fast programming (without jumper for normal programming, except for the fuses configuration).

Document revision :

20130730 - 2nd version : Price updating

20101207 - 1st version : Original document of December 7th, 2010