User's Manual

User manual Version 1.2

ABLELink

Ethernet-Serial Server

GW21W-MAXI

51 / 56

B.2 Critical Issues of Upgrading

1. You can always abort the upgrading process by pressing the <Esc> key from host PC during the

upgrading process. GW21W-MAXI will restart automatically and the system remains intact.

2. If GW21W-MAXI does not receive any upgrading data within 30 seconds, GW21W-MAXI will restart

automatically and the system remains intact.

3. After the upgrading process finishes, GW21W-MAXI will program the flash memory and buzzer beeps

6 times then restarts. Normally, it takes around 10 seconds to complete the programming process. If

an error occurs during the programming process, GW21W-MAXI will clear the corresponding memory

and the system remains intact of what it was.

B.3 Error Messages

Firmware upgrade may not be successful if errors occur during the process.

Error Cause Message Comments

Illegal Hex file format

Hex File Text Error

Hex File Check-Sum Error

Hex File Format Error

Hex File End of Record Error

GW21W-MAXI handshaking problem GW21W-MAXI ACK Start Address Error

GW21W-MAXI ACK Length Error

GW21W-MAXI Response Command Error

Configuration file Remote IP not found

Open configuration file failure