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solution for serial cable replacement over BLE

Hello,

I need to implement a simple and minimal serial cable replacement using BLE SoC and external MCU host interfaced by 2-wire UART (without flow control). Is it feasible for Nordic SoCs? What's the best option for this purpose?

thanks in advance,

gaston

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  • People do use serial bootloaders to load the code via uart (eg, from an MCU).  However, if this is a one time only design then you may find it easier to just make the SWD for the nRF available on your design and just program the flash on the nRF that way. It's less complicated. Look in the SDK for the for bootloader_secure_serial if you want to do serial dfu bootloader. If you base your design on nRF52840 then it has a usb transceiver and you can look at the usb dfu bootloader.

    With regard to the BLE stack, people often use ESB (enhanced shock burst), 802.15.4, and Gazelle protocols to accomplish the same thing. There is even an 802.15.4 uart example in the SDK.

    If you search the devzone I'm sure you will find plenty of example code for wireless uart.

  • Great! Thank you for the given support.

    regards,

    gaston

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