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BLE MOD

ehubels

I've bought a couple of BLE MOD's for the AVNET Azure Sphere Developemnt Baord V2. I need to programm the BLE MOD, the Laird documentation tell me I need at least RTS, TXD, RXD, CTS,  and RTD exposed. I don't see a USB/TTL programmer that actually exposes all of those, any suggestions?

Erik

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  • Hi,

    If you mean DTR, then you could DIY one:

     Building a USB-C USB-UART Board 

    That one has RXD, TXD, RTS, CTS and DTR. The PCB files are at that link, and Farnell has the Cypress chip in-stock. There may be ready-made USB UART boards with that chip, but I don't know if they expose the pins, whereas that DIY board does. I use that board regularly, although I don't often need the additional flow control pins, and it has been reliable. 

    I don't know what voltage you need, but that board supports 5V and 3.3V, and 1.8V is possible too, although the 1.8V option needs a wire link patched on the board.

    However, perhaps you can use SWD (i.e. using any J-Link programmer, or alternatively use the Laird development kit for that BLE module, which contains an on-board J-Link). I've not used these Laird devices, but I think that SWD may work.

  • in reply to shabaz

    That is really helpfull, thank you, really appreciate.

    Erik

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