IO8 Module


Posted on Feb 7, 2014

The bus is connected to the 2G—5 shrouded conenctor N9. The two CAN bus signals are fed into the PCP2551 CAN bus transceiver U2. The output of U2 is fed to the UART transmit and receive signals on the PIC16F688 microcontroller U1. 8-pins of the U1 are connected to 1×3; polarized. 1` male headers. Each pin is connected to one of the anlog inpu


IO8 Module
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ts on U1. A half size crystal oscillator (X1) is used to provide the reference 20MHz signal. A resonator could not be used since it requires pins 2 and 3 of U1, and pin 3 is needed for a analog input (AN3).




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