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参数资料
型号： GLK12232-25-SM-VPT
厂商： Matrix Orbital
文件页数： 46/70页
文件大小： 686K
描述： LCD GRAPHIC DISPL 122X32 WHT BLU
标准包装： 1
显示器类型： LCD - 彩色
显示模式： 可传导的
可视范围： 60.20mm L x 18.00mm W
背光： LED - 白
点象素： 122 x 32
接口： I²C，RS232，TTL
点尺寸： 0.40mm W x 0.40mm H
点间距： 0.44mm x 0.44mm
NOTES
?
The GLK12232-25-SM has watch dog timer, set to 2.1 seconds in
between transmis-
sions, in order prevent the display module from staying in a waiting state.
?
Once the timeout has been reached the timer will reset the display and issue a 0xFE
0xD4 response to the host to signal that this has happened.
12.1.2 XModem Upload Protocol
In addition to its original simple upload format, Matrix Orbital has added an XModem based protocol.
This facilitates much faster download speeds by increasing
the packet size from 1 byte to 128 bytes greatly
increasing throughput. A two byte CRC check is preformed at the end of each packet in place of the byte
echo system seen in the original protocol. However, the overall protocol remains much the same as the
original, but much faster.
To begin the upload, a series of command bytes are sent, much like the original protocol. However, no
distinction is made between bitmap and font as the XModem protocol is used to upload bin or ebin ?les that
contain all the bitmaps and fonts required for the unit. Once
the command bytes are sent, the size of the ?le
is sent in two bytes, least signifcant byte ?rst. Then two add
itional bytes are sent of the value zero.
At this point the display will respond with an ACK if the ?le ?t
s, or a NAK otherwise. Please note that
these values are different than those of the orignal protocol as seen in the table below. If a NAK is seen at
any point by the host, the upload is to be aborted in the same fashion as the regular protocol.
If the ?le will ?t, the start of header byte will be sent by the h
ost, follwed by a block count representing
the number of 128 byte blocks remaing to upload in regular and
inverted forms. The display will then check
to make sure the block count value matches its own before ACKing. The host can then send a 128 byte
block of data followed by that blocks high and low CRC16 bytes. The display then preforms a CRC check
on the data receive and ACKs if it matches that which was sent.
Transfer continues with a block count and
continues in this way until the end of ?le is reached.
Once the end of the upload ?le is reached, the host should tran
smit a single end of transmission byte. If
the end of ?le is expected, the display will ACK one last time.
This EOT byte along with the other special
characters mentioned above is listed in the table below.
Character
Byte
Description
ACK
0x06
Acknowledged; successful data transmission
NAK
0x21
Not Acknowledged; transmission unsuccessful, abort upload
SOH
0x01
Start of Header; begin upload process
EOT
0x04
End of Transmission; ?le upload complete
Below is an example of uploading a bin or ebin ?le using the XMo
dem protocol.
12.2 Wipe Filesystem
Matrix Orbital GLK12232-25-SM
45
相关PDF资料
PDF描述
GLK240128-25-FGW-V LCD GRAPHIC DISPL 240X128 WH BLU
GLK240128-25-V LCD GRAPHIC DISPL 240X128 Y/G BK
GLK24064-25-FGW-V LCD GRAPHIC DISPL 240X64 WHT BLU
GLK24064-25-V LCD GRAPHIC DISPL 240X64 Y/G BK
SS-5T PIN PLUNGER SPDT 5.3OZ/5AMP
相关代理商/技术参数
参数描述
GLK12232-25-SM-WB 功能描述:LCD 图形显示模块和配件 Blue Background White Text RoHS:否 制造商:ELECTRONIC ASSEMBLY 产品: 分辨率:128 x 64 流体类型:FSTN Positive 接口: 背光: 背景色:White 工作温度范围:- 20 C to + 70 C 封装:Bulk
GLK12232-25-SM-WB-E 功能描述:LCD 图形显示模块和配件 122x32 Wht Txt Blu B/G Ext Temp RoHS:否 制造商:ELECTRONIC ASSEMBLY 产品: 分辨率:128 x 64 流体类型:FSTN Positive 接口: 背光: 背景色:White 工作温度范围:- 20 C to + 70 C 封装:Bulk
GLK12232-25-SM-WB-USB 功能描述:LCD 图形显示模块和配件 122x32 Wht Txt Blu B/G 25 key RoHS:否 制造商:ELECTRONIC ASSEMBLY 产品: 分辨率:128 x 64 流体类型:FSTN Positive 接口: 背光: 背景色:White 工作温度范围:- 20 C to + 70 C 封装:Bulk
GLK12232-25-SM-WB-USB-E 功能描述:LCD 图形显示模块和配件 122x32 Wht Txt Blu B/G Ext Temp RoHS:否 制造商:ELECTRONIC ASSEMBLY 产品: 分辨率:128 x 64 流体类型:FSTN Positive 接口: 背光: 背景色:White 工作温度范围:- 20 C to + 70 C 封装:Bulk
GLK12232-25-SM-WB-V 功能描述:LCD 图形显示模块和配件 122x32 Black Wide Voltage RoHS:否 制造商:ELECTRONIC ASSEMBLY 产品: 分辨率:128 x 64 流体类型:FSTN Positive 接口: 背光: 背景色:White 工作温度范围:- 20 C to + 70 C 封装:Bulk
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