This is new arrival C8051F340 development board. The element and composition is compactly, and got standard circuit , onboard two LED and two buttons ,one is standard DB9 connection(Receptacle) ,the other is miniSD deck .
You can choose one of power supply from : 1)Power supply with USB port；2）External 5V power supply ; 3) Development board power supply by JTAG simulator .
Description:
Two rows of pin header is default installed on the top .Pin header welding upward can make expended experiment by dupont line .Pin header welding downwards can be inserted in peg board or PCB by yourself which is become one part of system.
Pin header about 2.54 distance lead to +5V,3.3V and GND, which is convenient for buyer to make expended experiment by normal dupont line.
Crystal oscillator is no-welding when delivery. C8051F has its own clock , all the testing (including USB testing )is made by crystal oscillator .
You can distinguish 2G and less than 2G miniSD memory card after testing . 4G or more than 4G maybe it is impossible to distinguish from testing temporarily .
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