User guide
Redpine Signals, Inc. Proprietary and Confidential. Page 75
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NOTE: Firmware upgrade need not be done every time the module is
powered up. It is only done when a new firmware is released for the
product.
5. The user can now power cycle or hard reset the module and not opt for
firmware upgrade when “Firmware upgrade (y/n)” comes in the screen, by
sending „n\n‟ (0x6E 0x0A) to the module immediately after the message
comes. In such a case, the following messages are sent from the module
<space>Loading…<space>\r\n
Byte sequence 0x20 0x4C 0x6F 0x61 0x64 0x69 0x6E 0x67 0x2E 0x2E 0x2E
0x20 0x0D 0x0A
<space>Loading Done\r\n
Byte sequence 0x20 0x4C 0x6F 0x61 0x64 0x69 0x6E 0x67 0x20 0x44 0x6F
0x6E 0x65 0x0D 0x0A
6. After this message, AT commands can be given as described
3.7.2 Firmware Upgrade Using UART Interface with wireless firmware
upgrade feature
1
1. Open Hyperterminal and power up the module. The module sends the
message – “Firmware upgrade (y/n)”. Send „y‟ to the module.
2. Send the files taim1, taim2, tadm1 and tadm2 from the location
RS.CN.xx.GENR.UT.4.7.x\Software\Wireless_Upgrade\Firstlevel_bootl
oader\ using the Kermit protocol. Follow the same process as
described in section Firmware Upgrade from a Lower Version to 4.7.x
Using UART Interface without wireless firmware upgrade feature to
load the file from the location
RS.CN.xx.GENR.UT.4.7.x\Software\Wireless_Upgrade\Firstlevel_bootl
oader\
3. Power cycle or hard reset the module. The module sends the message
– “Firmware upgrade (y/n)”. Send „n\n‟ to the module immediately.
The module displays the messages “Loading…” and then
“1st level boot-loader upgradation completed”
Hex stream:
20 31 73 74 20 4C 65 76 65 6C 20 42 6F 6F 74 4C 6F 61 64 65 72 20
55 70 67 72 61 64 61 74 69 6F 6E 20 43 6F 6D 70 6C 65 74 65 64
0D 0A
1
Wireless Firmware Upgrade Feature is available from 4.7.X onwards only.