Forum : ST7/STM8
Original Post
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October 5, 2009 - 1:28pm
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Hello, How to put jumpers to use usart on test programs "CAN_receive" and "CAN_send" ? How to use these programs ? Thank you |
Hi,
You do not need any specific jumpers apart from the LED0-7 jumpers (if you want to see the byte values displayed on the REva LEDs) and the POT jumper (to speed up/slow down the messages flow rate).
You need a precise clock: Either solder a 12MHz oscillator on your board, or alternatively you can use the 12MHz signal from the REva board, which is available through a pin named "ICC_12MHz_EN"), this signal shoul dbe connected to the oscillator pin of your processor.
You need one sender and one receiver: That is, 2 interconnected REva boards, or a STM8A Primer+REva.
Interconnection of the REva boards should be done with a twisted pair between the "CAN/SER2" DB-15 male connectors (pins 2 and 9 cross-connected).
You can then play with the program at will.
Note that there are plenty of useful comments in the main.c file, which explains how to use the example.
Regards,
Bruno