Adapter from 4bit-Bus to Seriell-LCD-Display!!!!!
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Posts: 46,084
Hi Adrian :-)
Your translation is perfect !!!
The original display is wired as follows:
_____ ________________
! ! ! !
! !-D0--->
RS-! !-Vcc
! !-D1--->--R/W(/WR)-! !-Brightnes
! !-D2--->----E(/RD)-! !-GND
! !-D0- ! !
! !-D1- ! 4x20 Character !
! uC !-D2- ! Dot Matrix !
! !-D3- ! Display !
! !-D3--->
D4-! !
! !-D4--->
D5-! !
! !-D5--->
D6-! !
! !-D6--->
D7-! !
!_____! !________________!
The serial display wiring diagram:
____ ______ _________
! ! ! ! ! !
! !-D0->
RS---D0-! PIC !-RXD--->---TXD-! Serial !
! !-D1->-R/W(/WR)--D1-! (or !-CTS--->----MB-! VFD !
! !-D2->---E(/RD)--D2-! UART)! ! Display !
! !-D3->
D4--D3-! ! ! Module !
! !-D4->
D5--D4-! ! !_________!
! uC !-D5->
D6--D5-! !
! !-D6->
D7--D6-! !
!____! !______!
The timing diagrams can found here:
http://www.noritake-itron.com/EPages/Log.asp?
PCode=3DSpecs/GU7000/GU140x32F-7806-04&PType=3Dpdf=20
In the 4-bit modus the data should be clocked first with the high=20
nibble (bits 4-7 (D4-D7)) followed by the low nibble (bits 0-3 (D0-
D3)).
Thanx
luemmel
--- In basicstamps@yahoogroups.com, "Adrian Schneider"
<adrian.schneider@t...> wrote:
> Hi everybody
>
> If I got this right you want to replace your original LCD (which
> is hooked up by a 4bit bus) by a 4x20 serial LCD (the ones we
> all know here). So you need some circuitry and software to convert
> signals and protocol. I think this is feasible with a stamp or
> PIC. But you need to be more specific on that 4bit bus (kind of
> parallel or serial?)
>
> And in german:
>
> Wenn ich das recht verstanden habe, willst du das originale LCD
> (angeschlossen
Your translation is perfect !!!
The original display is wired as follows:
_____ ________________
! ! ! !
! !-D0--->
RS-! !-Vcc
! !-D1--->--R/W(/WR)-! !-Brightnes
! !-D2--->----E(/RD)-! !-GND
! !-D0- ! !
! !-D1- ! 4x20 Character !
! uC !-D2- ! Dot Matrix !
! !-D3- ! Display !
! !-D3--->
D4-! !
! !-D4--->
D5-! !
! !-D5--->
D6-! !
! !-D6--->
D7-! !
!_____! !________________!
The serial display wiring diagram:
____ ______ _________
! ! ! ! ! !
! !-D0->
RS---D0-! PIC !-RXD--->---TXD-! Serial !
! !-D1->-R/W(/WR)--D1-! (or !-CTS--->----MB-! VFD !
! !-D2->---E(/RD)--D2-! UART)! ! Display !
! !-D3->
D4--D3-! ! ! Module !
! !-D4->
D5--D4-! ! !_________!
! uC !-D5->
D6--D5-! !
! !-D6->
D7--D6-! !
!____! !______!
The timing diagrams can found here:
http://www.noritake-itron.com/EPages/Log.asp?
PCode=3DSpecs/GU7000/GU140x32F-7806-04&PType=3Dpdf=20
In the 4-bit modus the data should be clocked first with the high=20
nibble (bits 4-7 (D4-D7)) followed by the low nibble (bits 0-3 (D0-
D3)).
Thanx
luemmel
--- In basicstamps@yahoogroups.com, "Adrian Schneider"
<adrian.schneider@t...> wrote:
> Hi everybody
>
> If I got this right you want to replace your original LCD (which
> is hooked up by a 4bit bus) by a 4x20 serial LCD (the ones we
> all know here). So you need some circuitry and software to convert
> signals and protocol. I think this is feasible with a stamp or
> PIC. But you need to be more specific on that 4bit bus (kind of
> parallel or serial?)
>
> And in german:
>
> Wenn ich das recht verstanden habe, willst du das originale LCD
> (angeschlossen
Comments
Your translation is perfect !!!
The original display is wired as follows:
_____ ________________
! ! ! !
! !-D0--->
RS-! !-Vcc
! !-D1--->--R/W(/WR)-! !-Brightnes
! !-D2--->----E(/RD)-! !-GND
! !-D0- ! !
! !-D1- ! 4x20 Character !
! uC !-D2- ! Dot Matrix !
! !-D3- ! Display !
! !-D3--->
D4-! !
! !-D4--->
D5-! !
! !-D5--->
D6-! !
! !-D6--->
D7-! !
!_____! !________________!
The serial display wiring diagram:
____ ______ _________
! ! ! ! ! !
! !-D0->
RS---D0-! PIC !-RXD--->---TXD-! Serial !
! !-D1->-R/W(/WR)--D1-! (or !-CTS--->----MB-! VFD !
! !-D2->---E(/RD)--D2-! UART)! ! Display !
! !-D3->
D4--D3-! ! ! Module !
! !-D4->
D5--D4-! ! !_________!
! uC !-D5->
D6--D5-! !
! !-D6->
D7--D6-! !
!____! !______!
The timing diagrams can found here:
http://www.noritake-itron.com/EPages/Log.asp?
PCode=3DSpecs/GU7000/GU140x32F-7806-04&PType=3Dpdf=20
In the 4-bit modus the data should be clocked first with the high=20
nibble (bits 4-7 (D4-D7)) followed by the low nibble (bits 0-3 (D0-
D3)).
Thanx
luemmel
--- In basicstamps@yahoogroups.com, "Adrian Schneider"
<adrian.schneider@t...> wrote:
> Hi everybody
>
> If I got this right you want to replace your original LCD (which
> is hooked up by a 4bit bus) by a 4x20 serial LCD (the ones we
> all know here). So you need some circuitry and software to convert
> signals and protocol. I think this is feasible with a stamp or
> PIC. But you need to be more specific on that 4bit bus (kind of
> parallel or serial?)
>
> And in german:
>
> Wenn ich das recht verstanden habe, willst du das originale LCD
> (angeschlossen