Hatteland Display 26 inch - HD 26T21 MMC (Widescreen) - Manual (Page 21)

21
Serial/Ethernet Communication (SCOM) Interface
IND100084-14
"SWI" - Main Software Version Query
The SWI command is a legacy command which is backward compatible with already existing customer setups (i.e.
product ranges released before Series X). For newer systems and implementations, please use "FWV" command
when possible. Any future revisions, such as CMD additions or changes to the software will increment the software
version. The unit will reply to this command with an ACK attention code. The DATA field will be a ASCII text string
indicating the software version, e.g: "120801V1_M".
Byte Description Applies to Example reply as ASCII text after query
0x00 GEV (video chipset) firmware version MMD 120306V1
0x00 RAP (video chipset) firmware version STD RAP120106R0V01
0x00 VCOM (Virtual internal COM) firmware version MMC SW101010-0181
Example:
Command Software Version query:
0x07 0xFF 0x53 0x57 0x49 0x00 0x06
Acknowledge GEV software query: "120801V1_M"
0x06 0xFF 0x53 0x57 0x49 0x0A 0xFD 0x31 0x32 0x30 0x38 0x30 0x31 0x56 0x31 0x5F 0x4D 0xA0
"SWK" - Glass Display Control™ (GDC) software version Query
This command indicates the firmware (Cypress) version of the Glass Display Control™ (GDC) software. It applies for
all MMD, STD and MMC units.
Example:
Command Software Version query:
0x07 0xFF 0x53 0x57 0x4B 0x00 0x04
"TMP" - Temperature Sensor Query
The unit features a sensor that measures the temperature inside. The unit will reply to this command with an ASCII
string indication the temperature in Celcius degree (°C).
0x52 "R" = Read current temperature
0x48 "H" = Read Temperature Histogram
The histogram is a table for temperature -55 to 125 °C and be divided to 12 parts. The temperature range for each
part is 16 °C and each part use two bytes.
Example:
Command Read Current Temperature "R":
0x07 0xFF 0x54 0x4D 0x50 0x01 0x07 0x52 0xAD