Mindeo MP168, Руководство пользователя

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8
3-3 Operate the platform by receiving command via UART
Note:
1-
The information in this chapter is provided for the platform with RS232 cable or USB cable.
2- If the platform is with USB cable, the setting of USB device type must be set as “USB virtual COM”.
Please refer to
3-7 USB interface .
3- Please read 3-8 Scan mode & some global settings about the setting of Scanning mode in details.
UART parameter should be set as below:
(1)
Baud rate: 9600 bps;
(2) Data bits: 8 bits;
(3) Stop bit: 1 bit;
(4) Parity check bit: None;
(5) Flow control: None.
Guide of control command: all commands are sent by UART
1) Start command: “0x54” (T)
When the platform received the above command, it will start barcode scanning following the setting of
Scanning mode. If the platform is in the mode of “Auto-detection”, the platform will have a single scan,
then returns to “Auto-detection” mode.
2) Stop command: “0x50” (P)
If the Scanning mode is set as “Alternate continue” or “Continue”, and the platform received the above
command, it will stop barcode scanning and act as in an idle mode.
3) Restart command: “0x35” (R)
Once the platform received the above command, it will restart.
Returning message from the platform
1) A successful decode
Once the platform successfully decoded a barcode, the platform will stop scanning and returns the
barcode data to the Host.
2) Not a successful decode
Once the platform failed to decode a barcode before stopping scanning, the platform will return a
message to the Host. The message is set as “0x25, 0x25, 0x4E, 0x6F, 0x52, 0x65, 0x61, 0x64”
(%%NoRead).