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mk10 UART modbus

Question asked by mrandreas on May 15, 2013
Latest reply on Jul 2, 2013 by Pedro Augusto Panecatl Salas

Hi,


My goal is to get an modbus Server running with an RS485 Uart on a MK10FN1M0VLQ12. So far I haven't found a suitable driver or newb example to get started on the low level stuff. Any Ideas for where to find Driver example for mk10?

 

If I where to setup this from scratch and I want to set the pheripheral driver to handle silent interval max and min in characters (1 ch = 10 bit with stop bit) and clear to send intervall.

silent intervall

- If there is an space inbetween >1,5ch(min) and <3,5ch(max) the serial driver shall discard the incomming buffer.

- If the silent space is >3,5ch the incomming buffer shall be handled by the modbus rtu driver.

- If silent space is >4,5 outgoing buffer can be sent.

 

What would be the proper solution, timer baud polled IO and/or with interrupt and/ with DMA?

 

thanks!

 

regards

 

Andreas

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