Hello Unregistered ,
ASM , very impressif code, thanks.
its always better to use the hardware than bit-banged routines and there is nothing better than a ring-buffer to overcome traffic snarls ...
there are some good ideas here https://www.romanblack.com/DTMF/DTMF_alg.htm
Plenty fast, I'd say. At 32MHz an instruction cycle is 125ns. That's ~1250 cycles between zero crossings. I'm not trying to interpret/decode the data, just demodulate the signal. Every other...
edited BaudR var word : baudr = 3313 and TRISA = 111110 1st receiving random characters 2nd normal what could be done to avoid the first thanks. 9997
Although it is a low frequency, still a zero cross happens every 156.2 usec for the 3.2KHz signal. Will the pic be fast enough to process that signal? I am sure ZCD and timers will be enough, but...
I have what looks to be a 1.6/3.2kHz FSK signal that I'd like to demodulate to a bitstream using a suitable PIC. It's a two wire system with bursts of the FSK signal riding on top of the DC supply,...
from my last edit, ' Jumpers ' J3 300 600 1200 2400 4800 9600 14400 19200 28800 38400 ' 1--2 RB7 On On On On On On ' 3--4 RA2 ...
when testing baud rate, usualy I start at 300 and up when it stopped working then I set pace = 1 and re-start from the last baud rate tested. 16F690 Xtal 20Mhz set pace to 1 sEROUT2...
I only tested at 19200 and the Backlight works OK. But text, could not send up to this moment. WIll try different Baud Rate. Though I test on a PIC16F1827 at 32MHz. Ioannis
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Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780
ASM , very impressif code,
jackberg1 Today, 08:17thanks.