how to program serial LCD using pic16f84

[jeraa]

hi,

anyone pls help me to program serial LCD using basic compiler,
i already try this but not work

pause 1000
serout 1, n2400, (254,1)
pause 2
serout 1, n2400, ("testing 123.")

hope anyone can help me

[ober]

Hi, what type of serial LCD? Some details on the LCD and connection should be helpful.

Also have you tested whether the program is loaded into PIC and it is running?

[jeraa]

im using Serial LCD (2x16)
Product Code : DS-LCD-SRL162

i think the program running. i use led to test when the program start and before program end..

[ober]

Are you sure the command of serial out in SPI format? Because the LCD you get is in SPI format, but the code you wrote seem to be UART format.

How is the connection from serial LCD to PIC pin?

[jeraa]

im not sure about the format, what the difference between SPI and UART format?

i refer the connection from serial LCD to PIC pin from user manual
(http://www.cytron.com.my/viewProduct.ph ... CD%20(2x16))

pin1 (vss) - GND(0V)
PIN2(VDD)- VCC(5V)
PIN3 (V0)-5K PRESET
PIN4(E)-RB0
PIN5(S/D)-RB1
PIN6(CLK)-NOT CONNECTED

[ober]

im not sure about the format, what the difference between SPI and UART format?

i refer the connection from serial LCD to PIC pin from user manual
(http://www.cytron.com.my/viewProduct.ph ... CD%20(2x16))

pin1 (vss) - GND(0V)
PIN2(VDD)- VCC(5V)
PIN3 (V0)-5K PRESET
PIN4(E)-RB0
PIN5(S/D)-RB1
PIN6(CLK)-NOT CONNECTED

Well, there is huge different between SPI and UART, though both are under serial communication
My advise is to study first the UART and SPI, else you can try to use the sample source code given under the serial LCD product page. I think the User's Manual should have shown the sample connection.

The hardware connection and software are totally different between SPI and UART.

Cytron do not carry any UART LCD yet.

[jeraa]

ok thanks for the advise...