ktktkt

Displaying Characters

To display character, you need to define the font pattern in an array and have some supporting function to write the data out. There are quite a lot of samples on the Internet and the code are a bit lengthy. Please try to search and learn from them.

palm3tong

ktktk,

Thank you for your detail information and I will read, digest and try. Thank you again for your time and effort in helping us.

dino_lo

原帖由 palm3tong 於 2007-6-27 13:59 發表
ktktk,

Thank you for your detail information and I will read, digest and try. Thank you again for your time and effort in helping us.

真係要認真做.才會學到嘢.

ps:
pin31(/EA,VPP)tie-high(vcc), 選用內部rom. 如果只pull-high或者是空接,有可能唔work.
132564.hex 的demo 是用了port 0 做data,  port 3 做control pin 的.

[ 本帖最後由 dino_lo 於 2007-6-27 14:46 編輯 ]

ktktkt

原帖由 dino_lo 於 2007-6-27 14:33 發表


真係要認真做.才會學到嘢.

ps:
pin31(/EA,VPP)tie-high(vcc), 選用內部rom. 如果只pull-high或者是空接,有可能唔work.
132564.hex 的demo 是用了port 0 做data,  port 3 做cont ...

DELETED

[ 本帖最後由 ktktkt 於 2007-7-5 11:25 編輯 ]

dino_lo

在 lcdinfo 的 Forum 走了幾轉, 相信可以用 sed1565 的 driver, 和 接線方式,
有時間會試玩,初步估計如下
1, vss
2, vdd
3  ps

vdd,>> 3.3v!! 又有話3.3~5v 都係用3aa電池盒,串,一,兩支diode,做降壓.
vss>>>gnd
ps >>>tie gnd


4.~11 db7~db0,>>> lpt 的9~2
12/RD >>> lpt.16
13 /WR>>>LPT.14
14 RS>>>> LPT.1
15 /RESET>>>LPT.17
16 /CS>>>> GND  ( 要check data sheet 先.)
17,18,>>>背光.3aa電池盒(是否加電阻? )自己決定!

ks0713=s6b1713

[ 本帖最後由 dino_lo 於 2007-6-27 16:51 編輯 ]

dino_lo

原帖由 palm3tong 於 2007-6-22 21:32 發表
hi hktvro ,

I bought this one as well but can't make it work. I connected it to 89s51 (not 52) and burn the demo program and it didn't work. I only got the hex file of the demo program and can't ...

你check j1 是tie-vdd,定tie-gnd select 6800/8080

ktktkt

原帖由 dino_lo 於 2007-6-27 16:24 發表
在 lcdinfo 的 Forum 走了幾轉, 相信可以用 sed1565 的 driver, 和 接線方式,
有時間會試玩,初步估計如下
1, vss
2, vdd
3  ps

vdd,>> 3.3v!! 又有話3.3~5v 都係用3aa電池盒,串,一,兩支diode,做降壓 ...

I just read the datasheet of SED1565 and I think the instruction set is compatible, your idea might work! But for pin 3, I think it is C86 (to select 6800/8080 interface), as PS is used to select parallel or serial mode. Also, the LCD can be driven by 5V, as I use 5V for the whole system. Hope to see your experiment result!

Cheers!

ktktkt

原帖由 ktktkt 於 2007-6-27 18:20 發表


I just read the datasheet of SED1565 and I think the instruction set is compatible, your idea might work! But for pin 3, I think it is C86 (to select 6800/8080 interface), as PS is used to sele ...

If you try 5V, make sure to have a limiting resistor.

dino_lo

info 真係推到, sed1565  beta driver, serial mode,
pin 3 gnd>>>serial mode
J1 jumber >>> GND>>> 8080 MODE

dino_lo

Checked:
[attach]541789[/attach]
J1 on PCB side need to change to GND(near C7)
PS,PIN 3 connect to GND :set serial mode

connection as below
printer port      lt_13264b
lpt.2---------- #5  DB6(SCLK)
lpt.3---------- #4  DB7(SDA)
lpt.4---------- #15 /RES
lpt.5---------- #16 /CS
lpt.6---------- #14 RS
lpt.7---------- #2  VDD, printer port 供電,或者用背光的電源.

背光,用了usb,過兩支1n4001 ,有3.39v ok 夠光.



lcd _info driver select SED1656 ,need dl from lcd_info forum
>Driver page.

[ 本帖最後由 dino_lo 於 2007-6-28 16:05 編輯 ]