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 Posted: Nov 15, 2009 - 05:44 PM |
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Joined: Aug 09, 2005
Posts: 30
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I hooked up a ATZB-24-A2 ZigBee module to a FTDI TTL-232R-3V3 USB->Serial cable. I have a 3.3v regulator supplying power to the module.
I am attempting to use SerialNet, the AT-command set that comes pre-programmed on the module. When I open the serial port in realterm or hyperterminal, I get no response. I am using 38400 baud 8N1, no flow control.
I see 3.3v on a few of the JTAG pins, so I believe the chip is getting power. Unfortunately, I do not have a JTAG programmer to peak in through JTAG.
I have checked and re-checked the solder connections and wiring.
Does anyone have any ideas about what might be wrong? Any ideas on how to further debug this?
Thanks,
Mike |
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Posted: Nov 15, 2009 - 08:10 PM |
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Joined: Apr 15, 2009
Posts: 4860
Location: San Jose, CA
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mknoll wrote:
I am attempting to use SerialNet, the AT-command set that comes pre-programmed on the module.
I don't really think that SerialNet comes preprogrammed. Modules come with bootloader preprogrammed and SerialNet SREC image is in SDK. Try to connect with PC-part of bootloader to the module and see if it can upload images. |
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Posted: Nov 15, 2009 - 09:23 PM |
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Joined: Aug 09, 2005
Posts: 30
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I couldn't find the serial bootloader EXE for download. I did find the specs for the bootloader:
http://www.meshnetics.com/netcat_files/ ... ide%29.pdf
I wrote a quick perl script to repeatedly output the HANDSHAKE_REQ and print out any reply. I plugged in the device, ran the script and pressed reset a few times. I did not receive any output.
It seems to be an issue with the serial communication. I tried swapping the TXD/RXD signals, and setting them to inverse RS232 in FDI's config utility. |
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Posted: Nov 16, 2009 - 02:52 AM |
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Joined: Aug 09, 2005
Posts: 30
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I found Atmel/Meshnetic's bootloader. The installer is in the BitCloud SDK, in the Bootloader directory, called BootloaderSetup_1.1.0.12.jar. The .jar extension threw me off.
SerialNet does not come on the module. Running the bootloader uploader with the SerialNet .srec included in the SDK worked.
Now to determine how my application that attempted to start the bootloader handshack was flawed. |
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Posted: Nov 16, 2009 - 06:50 AM |
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Joined: Apr 15, 2009
Posts: 4860
Location: San Jose, CA
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mknoll wrote:
called BootloaderSetup_1.1.0.12.jar. The .jar extension threw me off.
In new release it would be .exe, don't know why it's jar there 
mknoll wrote:
Now to determine how my application that attempted to start the bootloader handshack was flawed.
Unfortunately I can't give you the code for bootloader. |
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Posted: Nov 16, 2009 - 07:37 AM |
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Joined: Jun 17, 2008
Posts: 454
Location: Meissen, Germany
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Silly question, is the Atmel/Meshnetic's bootloader any derivate of a commonly used
bootloader like AVR109 or STK500v{1,2} ? In this case avrdude would be the tool of choice. |
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Posted: Nov 16, 2009 - 07:44 AM |
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Joined: Apr 15, 2009
Posts: 4860
Location: San Jose, CA
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uracolix wrote:
Silly question, is the Atmel/Meshnetic's bootloader any derivate of a commonly used
bootloader like AVR109 or STK500v{1,2} ? In this case avrdude would be the tool of choice.
I believe not, it can accept SREC-s (transformed into binary) and write eeprom and flash. No extended command set. |
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Posted: Nov 17, 2009 - 05:23 AM |
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Joined: Aug 09, 2005
Posts: 30
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Quote:
I don't really think that SerialNet comes preprogrammed. Modules come with bootloader preprogrammed and SerialNet SREC image is in SDK. Try to connect with PC-part of bootloader to the module and see if it can upload images.
I confirmed with Atmel support, the Meshnetic branded devices come with the bootloader and SerialNet, the Atmel branded devices only have the bootloader.
Quote:
Unfortunately I can't give you the code for bootloader.
Well, I'm not looking to write my own bootloader, I was only trying to send something to the module to get a response. Since I found I can use the bootloader application, I'm set.
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In new release it would be .exe, don't know why it's jar there
Do you know where I can obtain the .exe? the .jar does not seem to support uploading to the eeprom, does the .exe? |
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Posted: Nov 17, 2009 - 08:03 AM |
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Joined: Apr 15, 2009
Posts: 4860
Location: San Jose, CA
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mknoll wrote:
Do you know where I can obtain the .exe? the .jar does not seem to support uploading to the eeprom, does the .exe?
They both do but this is not separate function, just put EEPROM contents at address 0x00810000 in SREC file and it will be uploaded. |
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