New Problem with LCD and MM74C922 and Bs2p24 (Column #97 Nuts and Volts (Volume
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SRs...
I have new problem with my proyect... I use same diagram in the Column #97
The Nuts and Volts of Basic Stamp (Volume 4) publicate into this web site:
http://www.parallax.com/html_pages/downloads/nvcolumns/Nuts_Volts_Downloads_
V4.asp
LCD
DMC16230NY-LY-B
I use the same diagramto the page 63 but only chage P0 to P1.... And i
charge into the Bs2p24 the program LCDINIT (The same to the Basic Stamp
Book), I was two experiments
One of them, i turn on with the exactly diagram conected and i found the
LCD show me all square in the second line then it (LCD) turn off
Second, i turn on with the exactly diagram connected but i unconnected
Data Avaliable to the 10K resistor and i found the LCD show me the message
(Hello Wold¡ first line and How are you? second line)....
I don't understand because i proved the MM74C922, when i press any key,
Data avalianble change of 35mV to 4,95V.. I think the MM74C922 is right
I need your help abopu this new problem... I don't understand...
I appreciate your help and prompt response
Best Regards
Eng. Damian Trujillo.
Venezuela, Caracas
Best Regards
Eng. Damian Trujillo G
Venezuela, Caracas
I have new problem with my proyect... I use same diagram in the Column #97
The Nuts and Volts of Basic Stamp (Volume 4) publicate into this web site:
http://www.parallax.com/html_pages/downloads/nvcolumns/Nuts_Volts_Downloads_
V4.asp
LCD
DMC16230NY-LY-B
I use the same diagramto the page 63 but only chage P0 to P1.... And i
charge into the Bs2p24 the program LCDINIT (The same to the Basic Stamp
Book), I was two experiments
One of them, i turn on with the exactly diagram conected and i found the
LCD show me all square in the second line then it (LCD) turn off
Second, i turn on with the exactly diagram connected but i unconnected
Data Avaliable to the 10K resistor and i found the LCD show me the message
(Hello Wold¡ first line and How are you? second line)....
I don't understand because i proved the MM74C922, when i press any key,
Data avalianble change of 35mV to 4,95V.. I think the MM74C922 is right
I need your help abopu this new problem... I don't understand...
I appreciate your help and prompt response
Best Regards
Eng. Damian Trujillo.
Venezuela, Caracas
Best Regards
Eng. Damian Trujillo G
Venezuela, Caracas
Comments
I have new problem with my proyect... I use same diagram in the Column #97
The Nuts and Volts of Basic Stamp (Volume 4) publicate into this web site:
http://www.parallax.com/html_pages/downloads/nvcolumns/Nuts_Volts_Downloads_
V4.asp
LCD
DMC16230NY-LY-B
I use the same diagramto the page 63 but only chage P0 to P1.... And i
charge into the Bs2p24 the program LCDINIT (The same to the Basic Stamp
Book), I was two experiments
One of them, i turn on with the exactly diagram conected and i found the
LCD show me all square in the second line then it (LCD) turn off
Second, i turn on with the exactly diagram connected but i unconnected
Data Avaliable to the 10K resistor and i found the LCD show me the message
(Hello Wold¡ first line and How are you? second line)....
I don't understand because i proved the MM74C922, when i press any key,
Data avalianble change of 35mV to 4,95V.. I think the MM74C922 is right
I need your help abopu this new problem... I don't understand...
I appreciate your help and prompt response
Best Regards
Eng. Damian Trujillo.
Venezuela, Caracas
Best Regards
Eng. Damian Trujillo G
Venezuela, Caracas
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