Hello! Just a quick question: I am planning on using RS-232 ACIAs to send serial data to a 65c02 computer. Any (older) RS-232 chip supports no more than 2 MHz clock speeds per serial pulse and the newest chips only support up to 14MHz. In this instance, should I use a PWM pin to simulate the 1MHz cl…

The Arduino can send serial data at any standard speed, from 300 to 115200 Baud (serial bits per second), using its built in ACIA (called a UART). The 16 MHz clock is for the Arduino CPU. What you described before, apparently reading a port pin on your 65C22 VIA, is called "bit banged RS232" and i…

Arduino Nano - simulate 1MHz pulse

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SteveMann November 5, 2021, 2:36pm 2

How about using the analog port to look at the PWM?

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Arduino Nano - simulate 1MHz pulse

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