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nRF51822 doesn't advertise

I have bought a Tayio Yuden EYSGJNZWY Bluetooth module, which is in fact just a Nordic's nRF51822 (256KB Flash and 32KB RAM) with added antenna. Tayio's files say that the module is factory preflashed with S120 V2.1.0 SoftDevice firmware EYSGJNZWY datareport - check p.6, s. This is my wiring schematic: image description

On module power up there is no bluetooth advertising at all. I have tried sending AT commands via UART to see if it will return anything, but there was no response. Then I flashed it via SWD (OpenOCD) with S110 ble_beacon .hex precompiled example from Nordic's website - still no advertising or any sign of life AT ALL.

What am I doing wrong?

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  • S110 is not the application firmware, it is the BLE protocol stack. You need to program an application using the SoftDevice as well. Please have a look at the Getting Started section here, especially the section "Running examples that use a SoftDevice"

    I also recommend to try some simple firmware (without the SoftDevice) first, to see that your board is actually operational. On the nRF51 DK blinky is used to blink som LEDs, but that is not compatible with your board out of the box, and I don't know if you have LEDs on your board.

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  • S110 is not the application firmware, it is the BLE protocol stack. You need to program an application using the SoftDevice as well. Please have a look at the Getting Started section here, especially the section "Running examples that use a SoftDevice"

    I also recommend to try some simple firmware (without the SoftDevice) first, to see that your board is actually operational. On the nRF51 DK blinky is used to blink som LEDs, but that is not compatible with your board out of the box, and I don't know if you have LEDs on your board.

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