Hello Unregistered ,
Thanks Richard. The new code: works OK with LCD Backlight On/Off works OK sending text over the serial port works OK sending commands to LCD over serial port On power up LCD shows...
a bit out of practice , forgot porta.4 is input only plus 1827 has bits and pieces in other banks so tested and working version ...
For a 1827 it would look like this [untested] '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' Name : 16F1827 LCD BACKPACK ...
maybe the chip? for my part I used 12F683, 16F690 old regular Pic. I tried richard code, and it's impressive asm code, that I can't do for sure. so I stick to basic.
Tried different baud rate but still only Backlight work. The rest is just irrelevant characters on screen. Then tried the new code of Richards, but have 1827 chip, so asm code is not compatible. ...
here's the revised baud rate test chart 9998
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...
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Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780
Thanks Richard.
Ioannis Today, 22:34The new code:
works OK with LCD Backlight On/Off
works OK sending text over the serial port
works OK sending commands to LCD over serial port
On power up LCD shows...