MAC Address write Guide
MAC Address write overview
The MAC address is stored in different memory address from the firmware area of the W55RP20-S2E.
Therefore, reflashing the W55RP20-S2E firmware will not erase the MAC address input if only the firmware area is overwritten.
Required Hardware and Software
Hardware
- Devices with W55RP20-S2E firmware downloaded
- Cables (Ethernet / Serial)
Software
How to write MAC Address
There are two ways to write MAC Address
Using WIZMacTool
Step 1: Connect UART1 of W55RP20-S2E to PC
At this step, you will need a separate UART to USB module.
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Step 2: Run WIZMacTool
Run WIZMacTool and connect the COM port to which the W55RP20-S2E is connected.
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Step 3: Check INPUT MAC
After connecting the COM port of the W55RP20-S2E to WIZMacTool, reset the W55RP20-S2E and verify that "INPUT MAC" is displayed in WIZMacTool.
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Step 4: Write MAC Address
Set up WIZMacTool as shown in the picture, enter the MAC address you wish to input, and click Write.
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If the MAC address is successfully written, the W55RP20-S2E will respond with the letter R and the MAC address you entered.
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For convenience when entering consecutive MAC addresses, WIZMacTool increments the MAC address by 1 after clicking Write MAC.
Step 5: Done
You can verify the changed MAC address by searching with the config-tool
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or checking it via AT commands.
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Using Serial Command
Step 1: Connect UART1 of W55RP20-S2E to PC
At this step, you will need a separate UART to USB module.
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Step 2: Run serial program
Open the COM port connected to the W55RP20-S2E using a serial monitor program. In this manual, we used an open-source tool named Hercules.
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Step 3: Check INPUT MAC
After the COM port of the W55RP20-S2E is opened in the serial program, reset the W55RP20-S2E and verify that "INPUT MAC" is displayed.
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Step 4: Write MAC Address
Send the character 'S' followed by the MAC address you wish to input. The W55RP20-S2E will respond with the character 'R' and the MAC address you sent, indicating that the MAC address has been successfully written.
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Step 5: Done
You can verify the changed MAC address by searching with the config-tool
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or checking it via AT commands.
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