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ADUC842/843 BAUD RATE & SUPPLY

I am using ADUC842/ADUC843 controller.Baud rate i need is 460800.

How to achieve this baud rate?

Also i want to know the difference between ADUC842/ADUC843 5V AND ADUC842/ADUC843 3V ....

Regards,
Mayuri

Parents
  • ADUC842/843 are single clock devices.
    Given that timers on a standard 8052 are increment by 1 with each machine
    cycle, but on the ADuC841/ADuC842/ADuC843, one machine cycle is equal to one
    clock cycle means therefore the timers are increment at the same rate as the
    core clock.
    So, with a crystal of 29.4912 MHz, SMOD as 0 and TH1 reload as 0xFE the baudrate
    for mode 1 as 8-Bit UART with variable baud rate, equals to 460800 as desired.
    This document describes everything in detail.
    www.analog.com/.../ADUC841_842_843.pdf

Reply
  • ADUC842/843 are single clock devices.
    Given that timers on a standard 8052 are increment by 1 with each machine
    cycle, but on the ADuC841/ADuC842/ADuC843, one machine cycle is equal to one
    clock cycle means therefore the timers are increment at the same rate as the
    core clock.
    So, with a crystal of 29.4912 MHz, SMOD as 0 and TH1 reload as 0xFE the baudrate
    for mode 1 as 8-Bit UART with variable baud rate, equals to 460800 as desired.
    This document describes everything in detail.
    www.analog.com/.../ADUC841_842_843.pdf

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