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Low Power RF & Wireless Connectivity

Welcome to the Low Power RF & Wireless Connectivity Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

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Bit Coding
  • Byte Coding
  • Miller
  • NFC
  • TRF7970A
Related Posts
  • Forum Post: SUTIL in Microreader Mode

    Colin Watson Colin Watson
    Hi, If I write 0000000000000009, tags RI-TRP-W9QL confirm successful programming of 64 bit data space. If however i write 000000000000000A, I get a locked memory message however the 64 bits ID section does change to 000000000000000A. The least significant nibble will not accept higher than 9. I am...
    on Aug 13, 2012
  • Forum Post: Re: TRF7970A 106k end of communication indicator

    Marco Marco
    Hello Josh, Kostas asked me to provide further information for this problem, in special the register settings before I send the direct command for TX. You can find the register settings at the end of this post. Additionally I recognized that there are 2 types of "end of communication"...
    on Mar 28, 2012
  • Forum Post: Re: TRF7970A 106k end of communication indicator

    Marco Marco
    Hello, in the meantime I made one step closer to the solution: The NFC106 standard frame enforces one parity bit per byte. Thus the last bit is not a part of "end of communication", it is the parity bit for the byte. So it changes depending on the even or odd amount of ones in the byte...
    on Apr 11, 2012
  • Forum Post: TRF7970A 106k end of communication indicator

    Marco Marco
    Hello, I tried to reproduce the bit coding for NFC 106k as described in the ecma 340 standard document Near Field Communication Interface and Protocol. Therefore I transmitted one byte with the content 0x0F and had a look at the modulation pulses of the modified miller coding and the additional...
    on Mar 26, 2012
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