CC2541: ✮ Image Identify Message is not received correctly ✮

Chingun Khasar

Intellectual 615 points

Part Number: CC2541
Other Parts Discussed in Thread: BLE-STACK,

I am sending the Image identify/header message (message sent to 1st characteristics) in the following formats.

CRC0 VERSION LENGTH UID RESERVED

4 bytes 4 bytes 4 bytes 8 bytes 8 bytes

I sent an image header: f4d3000A392b4141414100000000

CRC0 CRC1 VERSION LENGTH UID RESERVED

I also sent this: f4d3ffff000A392b41414141ffffffff

However, when I printf("..",pValue[0] ,pValue[1] ,pValue[2]) on the oadWriteAttrCB the pValue it just prints "df36 df36 df36 ...." 16 times or " 0036 0036 0036 ...." 16 times. What can I do? Keep in mind I have not changed anything in oad_target.c.

Please don't just say read BLE Developer’s Guide, I have been reading. I need a solution to this ASAP. Thank you for the help!

over 8 years ago

0 Tom Kopriva over 8 years ago

TI__Mastermind 20480 points

You can give more context here? I don't really know what you're talking about. From the # tags, I'm seeing you're using BLE. That's all I really know at this point.

Are you using a specific BLE-Stack? Any particular examples and/or GATT profiles?

0 Chingun Khasar over 8 years ago in reply to Tom Kopriva

Intellectual 615 points

I am using BLE to od OAD on cc2541, right now I am in oad_target.c

0 Tom Kopriva over 8 years ago in reply to Chingun Khasar

TI__Mastermind 20480 points

In the callback, can you check if the uuid and len values are legit?
Also, looking at oadImgIdentifyWrite(), the version and len values are the first 2 bytes respectively.

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CC2541: ✮ Image Identify Message is not received correctly ✮