Evaluation Board User Guide
UPDATING/REPAIRING THE ISEB FIRMWARE
In the event that the ISEB firmware becomes corrupted or must be updated, the CD contains the necessary programming utility to flash the ISEB microcontroller. Also available on the CD is the version of firmware available at the time of release of the EVAL-
To flash the ISEB microcontroller, follow these steps.
1.Ensure that the ISEB is connected to and detected by the PC. The COM port that the device is recognized on must also be obtained, as mentioned in the previous sections.
2.Run the ARMWSD.exe program located in the /Drivers/FW/ folder, which displays information about the downloader, as shown in Figure 7.
Figure 7. ISEB ARMWSD Firmware Downloader
3.Click Browse… and select the ADI_ISEB_FW_1_3.hex file located in the /Drivers/FW/ folder or the most recent firmware obtained from the Analog Devices website (www.analog.com).
4.Click Configure to display the screen shown in Figure 8.
The downloader file should come configured for the ADuC7026 microcontroller on the ISEB. The only option that may need to be changed is to select the correct COM port from the Serial Port menu on the Comms tab (see Figure 8). When the COM port is selected, click OK to accept the changes and go back to the main screen.
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Figure 8. Selecting the Correct COM Port for the Downloader
When the ISEB is connected, the correct firmware is selected, and the downloader is fully configured, follow these steps to flash the firmware.
1.Click Start, as shown in Figure 7, to initiate the flashing process. After clicking Start, the two buttons on the ISEB shown in Figure 9 must be pressed, in a specific order, to flash the firmware.
ADuC7026
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Figure 9. ISEB Switch Locations for Flashing the Microcontroller
2.Press and hold down SW1.
3.With SW1 held down, press and release SW2.
4.Release SW1.
The download then begins and is automatically verified by
the downloader. If the downloading process fails, which will be indicated in the Monitor Status box (see Figure 7), attempt the download again by clicking Start and then the appropriate switch combination. It may take a few attempts to reprogram the board successfully.
After the download is completed successfully, click Run, as shown in Figure 7, to reset the ISEB and to begin running the new firm- ware. When this step is complete, the board is updated correctly.
Updating the firmware may require that a new evaluation GUI be obtained. If the firmware on the CD is used to flash the ISEB, the evaluation GUI on the corresponding CD is sufficient. If the firmware used is obtained from the Analog Devices website (www.analog.com), the most recent version of the evaluation GUI, which is also located on the website, should be used.
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