Matrix-orbital GLK240128-25 Manual de usuario descargar pdf (Pagina 24)

Command Summary 19

1.6 Turn

Software Flow

Control On

Dec

Hex

ASCII

254 58

FE 3A

■ :

Almost Full Almost Empty

v8.0

Enables simple flow control. The display will return a single, Xoff, byte to the host when the display buffer is

almost full and a different, Xon, byte when the buffer is almost empty. Full value should provide enough room for

the largest data packet to be received without buffer overflow. No data should be sent to the display between full

and empty responses to permit processing. Buffer size is 256* bytes. Not available in I

C. Default off.

Almost Full

Byte

Number of bytes remaining before buffer is completely full, 0 < Full < Empty < 256*.

Almost Empty

Byte

Number of bytes before buffer can be considered empty enough to accept data.

*Note: Buffer size was increased to 256 bytes from 128 bytes at firmware revision 8.3.

1.7 Turn

Software Flow

Control Off

Dec

Hex

ASCII

254 59

FE 3B

■ ;

v8.0

Disables flow control. Bytes sent to the display may be permitted to overflow the buffer resulting in data loss.

1.8 Set Software

Flow Control

Response

Dec

Hex

ASCII

254 60

FE 3C

■ <

Xon Xoff

v8.0

Sets the values returned for almost full and almost empty messages when in flow control mode. This command

permits the display to utilize standard flow control values of 0x11 and 0x13, note that defaults are 0xFF and 0xFE.

Xon

Byte

Value returned when display buffer is almost empty, permitting transmission to resume.

Xoff

Byte

Value returned when display buffer is almost full, signaling transmission to halt.

1.9 Echo

Dec

Hex

ASCII

254 255

FE FF

■

Length Data

v8.3

Send data to the display that it will echo. Useful to confirm communication or return information from scripts.

Length

Short

Length of data array to be echoed.

Data

Byte(s)

An arbitrary array of data that the module will return.

Response

Byte(s)

The same arbitrary array of data originally sent.

1.10 Delay

Dec

Hex

ASCII

254 251

FE FB

■ √

Time

v8.3

Pause command execution to and responses from the display for the specified length of time.

Time

Short

Length of delay in ms, maximum 2000.

1.11 Software

Reset

Dec

Hex

ASCII

254 253 77 79 117 110

FE FD 4D 4F 75 6E

■ ² M O u n

v8.4

Reset the display as if power had been cycled via a software command. No commands should be sent while the

unit is in the process of resetting; a response will be returned to indicate the unit has successfully been reset.

Response

Short

Successful reset response, 254 212.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 69 70

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Matrix-orbital GLK240128-25 Manual de usuario Pagina 24

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