Evaluation Board User Guide
UG-061
Rev. 0 | Page 19 of
SERIAL DOWNLOADER
The ADE71xx/ADE75xx and ADE51xx/ADE55xx standalone
serial downloaders can be used to download Intel® hexadecimal
files to the 16 kB of on-chip flash memory. Data transfer takes
places through the UART serial interface. The serial download-
ers can also be used to configure read and write protection on
the ADE71xx/ADE75xx and ADE51xx/ADE55xx families of parts.
Note that there are two downloader programs, one targeted at
the ADE71xx/ADE75xx and another for the ADE51xx/ADE55xx.
There are two different software programs because the two families
have different flash protection schemes. The commands used to
initiate the serial download are an extension of the commands
listed in the uC004 Technical Note,
Understanding the Serial
Download Protocol,
available at
www.analog.com
.
Prior to using the serial downloader, the evaluation board
should be powered by the 9 V dc supply. Connect the USB-to-
UART board to the P2 header and the USB connection on the
PC. If using the USB-to-UART board for the first time, install
the USB-to-UART drivers. See the Installing the Drivers section
for details.
Figure 32 shows the interface for the ADE71xx/ADE75xx
serial downloader. A similar program allows downloading to
the ADE51xx/ADE55xx. To download code to the flash mem-
ory, locate the required hexadecimal file using the
Browse
button and then place the part in serial download mode. This is
achieved by pressing and holding the SDEN push-button, S2,
while issuing a reset by pressing and releasing the RESET push-
button, S3. The SDEN
08600-
033
push-button, S2, should then be released.
Once in serial download mode, click the
Find Device and
Reset
button on the serial downloader interface. The message
shown in Figure 32 then displays on the serial downloader
interface.
Figure 31. Serial Downloader—Reset
When communication is established, click the
Download
button to initiate the download. When the download is
complete, the message shown in Figure 32 appears.
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034
Figure 32. Serial Downloader—Complete
Note that the download time varies depending on the size of the
hexadecimal file that is being downloaded.
After the code has been downloaded properly, press the RESET
DEBUGGING SERIAL DOWNLOAD
push-button, S3, to begin the code execution.
If the part cannot be found by the serial downloader, the
message shown in Figure 33 appears.
08600-
035
Figure 33. Serial Downloader—Part Not Found
The part cannot be found if the ADE71xx/ADE75xx is not
correctly powered or if the serial downloader cannot communi-
cate with the EVAL-ADE7169EBZ-2/ADE5169EBZ-2. Another
possible cause of this failure is that the ADE71xx/ADE75xx is
not in serial download mode. Ensure that the ADE71xx/ADE75xx
is receiving 3.3 V from the 9 V dc power supply. This can be
verified using an oscilloscope or voltmeter to probe both the
VDD and VINTD test pins. Ensure that the USB-to-UART
board is connected to the P2 header and that the necessary
drivers have been installed (see the Installing the Drivers section).
Use the procedure outlined in the HyperTerminal Communication
section to verify that communication has been established.
Place the part in serial download mode once again by pressing the
push-button sequence described in the Serial Downloader section.
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