[Flashforth-devel] mega2560 Serial port problems

[Phoenix R. <pho...@pl...>]

Hello,

I'm having a problem getting a character to be transmitted using USART1.

Here's what I've tried:

bit3 UCSR1B mset \ TXEN1 enabled

bit7 UCSR1C mclr \ set for Asynch mode

bit6 UCSR1C mclr \ set for Asynch mode

\ set for 9600 baud

0 UBRR1H c!

$67 UBRR1L c!

\ 8N1

bit5 UCSR1C mclr

bit4 UCSR1C mclr

Then I send a character to UDR1, expecting to see the data on my scope 
attached to TX1: $31 UDR1 c!

Nothing happens on the scope.  What am I missing?

Many thanks!