Quote:
Originally Posted by dcb
The elm runs at 4.00 mhz.
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Actually, it has a 4x PLL in it, so it could also be running at 16MHz...
But also worth noting is that the PIC that the ELM uses (PIC16F2x80) has hardware PWM and CAN as well, so CPU speed may be a non-issue (it's just shuffling data between the serial port and hardware peripherals, with the exception of VPW, which isn't too difficult due to its very broad definition of "10.4kbps" (it could be significantly more or less, depending on how good your bit timings are).