Comments (5)
From @ivankravets on October 27, 2016 19:22
Interesting question. Are these board the same? NRF51_MICROBIT & NRF51_MICROBIT_B?
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Thanks Ivan.
I believe it has only one board so far. I bought two MicroBit boards six month apart, they should come from different production batches, both look the same and can run with S130 (ie NRF51_MICROBIT_B).
The closest thing I found is that few nRF51822 chips will not run on newer S130 version 2. As long as we use version 1, it will run on most chips. The library in PIO right now is using version 1.
[https://devzone.nordicsemi.com/question/93224/which-sdk11-gcc-examples-work-with-nrf51822/?comment=93336#comment-93336]
The two boards I have are using QFAAH0 chip and able to run version 1.
Looking at the targets.json, NRF51_MICROBIT and NRF51_MICROBIT_B share the same base MCU_NRF51_16K_BASE, only that NRF51_MICROBIT has extra inherit from MCU_NRF51_S110 which specify the S110 SoftDevice. So I think it is safe to use NRF51_MICROBIT_B.
S130 SoftDevice does use more space than S110 and provides BLE Central feature, which not many application will use, those may be the reason why the default is set to S110. As I am working on a project which requires BLE Central, I am trying to see if there any good or correct way to allow a project to specify which SoftDevice to be used.
Wonder, if it possible to set some variables in project's platformio.ini to change the target setting? Or have to create a new board for this?
Cheers,
Wilson
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From @ivankravets on October 28, 2016 17:22
We will create new board preset for MicrobitB. Please move this issue to this repo https://github.com/platformio/platform-nordicnrf51/issues
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That's great. Thanks!
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Please use board = bbcmicrobit_b
.
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