Quote:
Originally Posted by Cyril
Someone can discuss about the minimal frequence necessary for the mcu ? I code a rdm responder fully fonctionnal but I have to work in 16 MHz but I don't understand why it don't work with 8MHz ...
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The only hard requirement is that whatever clocking architecture you use, it must be able to run the UART at 250 Kbits/second. UARTs vary, but typically need a clock at 16x or 32x the baud rate.
Beyond that, it depends on the CPU, and how efficient your software is. MHz is really meaningless as an indicator of processor performance.
January 11th, 2016
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