E-Seek 200, Programming Manual, Page: 14 / 16

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Scanner upgrade
Description: To transfer and upgrade scanner software. Changes will be effective after
scanner ACK response.
Scanner Response: ACK / NAK
Example 1:
Host:
(ASCII value 01 „SOH‟)<A1CODE=Z>(ASCII value 04 „EOT‟)
Scanner: ACK
Host: switch to Zmodem protocol
Scanner: switch to Zmodem protocol
(After the file is being transferred)
Host: switch back to normal setting
Scanner: switch back to normal setting
Example 2:
Host: (ASCII valu
e 01 „SOH‟)<A1CODE=G>(ASCII value 04 „EOT‟)
Scanner: ACK
Start_Download
Host:
(ASCII value 02 „STX‟)
(CMDID)(DATALEN)(DATA)(CRC32)
(ASCII value 03 „ETX‟)
Scanner: ACK
Goto Start_Download until is done
Notes:
CMDID:
ASCII value 31 „1‟ = First block;
ASCII value 32 „2‟ = Mid block;
ASCII value 33 „3‟ = Last block; (1 Byte)
DATALEN: Length of Data Block (2 Bytes, LSB - MSB)
DATA: Data Block (Variable Length)
CRC32: Calculated CRC which includes CMDID, DATALEN and DATA (4 Bytes)
Description Field Values allowed
Application Code Upgrade Zmodem A1CODE=Z
Second App. Code Upgrade Zmodem A2CODE=Z
Application Code Upgrade VISA 1 A1CODE=V
Second App. Code Upgrade VISA 1 A2CODE=V
Application Code Upgrade Generic A1CODE=G
Second App. Code Upgrade Generic A2CODE=G
Table 2.13