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Programming Raytac MDBT40 (nRF51822 based) for LED blinking

Dear Nordic family,

I tried programming Raytac MDBT40 with the LED blinking code (taken from the example project of SDK 8) which worked with nRF51822 Bluetooth Low Energy BLE 4 and 2.4GHz Wireless Communication Module (purchased from exploreembedded).

Its getting programmed, but the LED is not blinking.

It there any extra software or hardware settings required for programming MDBT40?

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  • The blank example puts your example at IROM1 address 0x00000 and the S110 example expect a S110 softdevice to be present on the IC and puts your example at IROM1 address 0x18000. See this and this thread. This is very important. BLE examples without a Softdevice present on the chip will program to your board without errors, but will not work.

    What does your Flash Download settings look like? It should look like this:

    image description

    My nRFgo Studio looks like that when the J-Link Lite is not correctly connected to the chip. If I make sure the chip is there and has power I can hit "Recover" and it works.

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  • The blank example puts your example at IROM1 address 0x00000 and the S110 example expect a S110 softdevice to be present on the IC and puts your example at IROM1 address 0x18000. See this and this thread. This is very important. BLE examples without a Softdevice present on the chip will program to your board without errors, but will not work.

    What does your Flash Download settings look like? It should look like this:

    image description

    My nRFgo Studio looks like that when the J-Link Lite is not correctly connected to the chip. If I make sure the chip is there and has power I can hit "Recover" and it works.

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