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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Mark_M
@HilmarSt I don't think it is possible to simultaneously communicate with multiple baud rates on same UART. I tried to switch the port to all documented baud rates, all works, though not stable above 57K.
The chip has 2 UART ports, may be CASIC is on the UART1 while NMEA is on UART0?