Add support for nRF52840

[tamberg]

Hi Sandeep,

is there a chance your library already works with the nRF52840?

Would love to use it with https://www.adafruit.com/product/4062

Kind regards, Thomas

[tamberg]

Adafruit writes:

Since the underlying API and peripherals are the same for the '832 and '840, you can supercharge your older nRF52832 projects with the same exact code, with a single recompile!

[melvyniandrag]

I'm not sure this qualifies as an issue, this is a question. I don't have this chip to experiment with, so I can't help you out. Were you able to use the library? Looks like it should work, right?

I'm new to this BLE stuff, maybe you are too?

[dsteinman]

Unfortunately it looks like this library does not work on the nRF52840. I receive this error while compiling:

Arduino: 1.8.9 (Mac OS X), Board: "SparkFun Pro nRF52840 Mini, s140 6.1.1 r0, Level 0 (Release)"

In file included from /Documents/Arduino/libraries/BLEPeripheral/src/utility/lib_aci.h:34:0,
                 from /Documents/Arduino/libraries/BLEPeripheral/src/nRF8001.h:9,
                 from /Documents/Arduino/libraries/BLEPeripheral/src/BLEPeripheral.h:26,
                 from /Documents/Arduino/NRF40-BLEtest/ble.ino:2:
/Documents/Arduino/libraries/BLEPeripheral/src/utility/hal_platform.h:75:6: error: #error "Unsupported platform"
     #error "Unsupported platform"

      ^
exit status 1
Error compiling for board SparkFun Pro nRF52840 Mini.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I thought it would be a worth a shot to edit hal_platform.h, thinking maybe just a few lines would needed:

#if defined (__AVR__) || defined(__SAM3X8E__) || defined(__SAMD21G18A__) || defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__)

I tried to edit out all of the #if defined statements and just run the first block without any if's but the resulting code halts the device.

Then I found this commit for when the nRF52832 was added, so perhaps something like that will be needed for the nRF52840:

https://github.com/sandeepmistry/arduino-BLEPeripheral/commit/1cea5d24a6218515f180811837784c1742e10e0c