How to interface 40x4 LCD with PSoC 5LP ?

[Erka_3237036]

Hello guys ,

         i am newbie on 40x4 LCD ,first time i am working on this  lcd .

         please suggest me: how can i interface with psoc 5lp ?

                                       : what is the example code for this?

Best Regards,

Seggi.

[odissey1]

Seggi,

It would be helpful if you specify what kind of LCD you have. Does it have parallel or I2C for communication?

/odissey1

[Erka_3237036]

Hello,

          i have a Character Liquid Crystal Display Module (NHD-0440WH-ATMI-JT#).

Best Regards,

Seggi.

[Aashita_R · Accepted solution]

Hi Erka_3237036​

I have shared the code example in which 2x16 LCD such as the one available with CY8CKIT-001 has been interfaced with PSoC 5LP. You can refer it for your understanding.

Also, You can use 4 line LCD modules as long as you are following Hitachi 44780 standard 4-bit interface.

Thanks and Regards,

Aashita

[Erka_3237036]

Hello Aashita,

                i know how to configure 2x16 or 2x20 lcd with psoc 5lp. But i dont know how to configure NHD-0440WH-ATMI-JT#

Character Liquid Crystal Display Module because it has 2 enable signal for on/off top half and bottom half of the display  amd in psoc 5lp we has already provided the specified pins for lcd that is the reason i dont know how to configure 2 enable signal 4x40 lcd.

Best Regards,

Seggi.

[Erka_3237036]

Hello,

                                i was interfaced 4x40 character display with the psoc 5lp by the help of Demultiplexer and control signal.

it is working the perfectly but one  problem i was faced and i don't know what is the solution for this problem.

The problem is i has print the upper half of display and lower half of display i.e. i am totally utilizing my 4x40 display but  whenever i am ejecting the USB or disconnects the power from supply and again inserting the USB or power i am showing it can only print either upper half of display or bottom half of display .

Note: Before ejecting USB or power supply it can print totally 4x40 character display.

so what is the solution for this problem? Please guide me .

Thanks,

Best Regards,

Seggi.