Add support for Waveshare BLE400

[jeanmatthieud]

Description

• Type: Enhancement

Enhancement

Is it possible to add support for Waveshare BLE400 board ?
I tried to do it myself but without success.

The Pins should be edited in this way:

    P00  = p0,
    P01  = p1,
    P02  = p2,
    P03  = p3,
    P04  = p4,
    P05  = p5,
    P06  = p6,
    P07  = p7,

    P08  = p8,
    P09  = p9,
    P010 = p10,
    P11 = p11,
    P12 = p12,
    P13 = p13,
    P14 = p14,
    P15 = p15,

    P16 = p16,
    P17 = p17,
    P18 = p18,
    P19 = p19,
    P20 = p20,
    P21 = p21,
    P22 = p22,
    P23 = p23,

    P24 = p24,
    P25 = p25,
    P26 = p26,
    P27 = p27,
    P28 = p28,
    P29 = p29,
    P30 = p30,

    LED0    = p18,
    LED1    = p19,
    LED2    = p20,
    LED3    = p21,
    LED4    = p22,

    BUTTON1 = p16,
    BUTTON2 = p17,

    KEY1 = p16,
    KEY2 = p17,

I'm not sure for RX, TX and CTS, RDS, but if the changes are made, I could test it and correct the files.

[0xc0170]

Have you asked Waveshare if they are considering this addition ?

I tried to do it myself but without success.

You can always share your current work done (in case there is more work needed besides the pin names you shared above). Is there?

I'm not sure for RX, TX and CTS, RDS, but if the changes are made, I could test it and correct the files.

It seems there is Uart to usb converter on board, but not interface chip. No drag-n-drop programming?

[scttnlsn]

I've also tried running mBed on this board and I'm not sure why it doesn't work properly.

#include <mbed.h>

DigitalOut pin(P0_19);

int main() {
  while (true) {
    pin = 1;
    wait(0.5);
    pin = 0;
    wait(0.5);
  }

  return 0;
}

I flashed the above code with an ST-Link v2 but the LED did not blink. Haven't had a chance to debug it yet.

I was using this target: https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_RBLAB_BLENANO

[danielkucera]

You should try target BBC micro:bit. It worked for me.

[scttnlsn]

@danielkucera That worked for me as well. Thanks! Maybe it was just an issue w/ the board's configured clock speed?

[danielkucera]

@scttnlsn No problem, I spent hours on making it work so I'm glad it helped. I don't know where the problem is, you can compare configs for those targets to see.
Here's my comment on mbeds page btw: https://os.mbed.com/forum/platform-39-Nordic-nRF51822-community/topic/4982/?page=2#comment-55087

[ciarmcom]

ARM Internal Ref: MBOTRIAGE-134

[ashok-rao]

There are currently no plans to support this target in Mbed OS. Issue can be closed. Please reopen if required. Thanks.

[SoniaZotz]

So how does one develop embedded systems - where the board configuration does not follow any of Mbed standard defines boards?
here are currently no plans to support this target in Mbed OS BLE400 should not be a problem in this case.

[ashok-rao]

@SoniaZotz : You are definitely welcome to port Mbed OS to this new target (& we'd be happy to answer questions you may have in the porting process), however, the above comment was to mention that there are no plans to add this target to the list of officially supported platforms from Mbed side..

cc @0xc0170

[0xc0170]

@SoniaZotz If you have any questions , create a new issue with specific question regarding porting new target. Good starting point is https://os.mbed.com/docs/latest/reference/porting-targets.html

[danielkucera]

@SoniaZotz, I'm willing to help with porting and/or testing. Maybe we could start by forking BBC micro:bit which works for me and then just edit description, pin mapping etc.