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CC1310: WMBUS T1 Patch

MJn
Prodigy 120 points
Part Number: CC1310
Other Parts Discussed in Thread: WMBUS

Hello,

I'm currently trying to receive wireless mbus T1 frames using CC1310. I've followed the instructions in SWRA522E and successfully received frames. My issue is that, the length in the first byte is used which excludes CRC so i do not get the full frame. 

I have not really understood how to implement the suggestion in the application note:

Pseudo Code:
Use the following steps for pseudo code: 1. Enter RX and wait for the Rx_N_Data_Written interrupt.
2. When interrupt is received, read RxPacketType (see Table 6) to determine if the packet is T-Mode or C-Mode.
3. If T-Mode, interpret the first byte in the entry as the length byte.
4. If C-Mode, interpret the second byte as the length byte.
5. Use the length information to set the proper length using CMD_PROP_SET_LEN.

Is there any examples i can follow that would help me with this?

Thanks!

Best regards,
MJn

  • 0
    TI__Guru 56590 points

    Hello,

    I will try to find a subject matter expert for you.

  • 0
    Prodigy 120 points

    I've set up for partial entry, now i'm currently stuck at reading RxPacketType, this register always return 0.

    BR,
    MJn

  • 0 in reply to MJn
    TI__Guru* 79151 points

    Please take a look at the following post:

    It will show you an example of how to use partial read entries and the CMD_PROP_SET_LEN.

    I recommend that you try to get this example up and running before you try to implement the same for your wmbus packets.

    BR

    Siri

  • 0 in reply to Siri
    Prodigy 120 points

    Hi Siri,

    Thank you for your answer! I found the post you refer to and got it up and running successfully, however I'm having some trouble getting it to wrok with the wmbus settings from the application note. When i change to those settings the interrupt triggers constantly. I will accept this answer now and try to figure out what I'm doing wrong!

    Thanks again for the information!

    BR,
    MJn