BLYST Nano Installation and example file

RE: BLYST Nano Installation and example file

Nguyen Hoan Hoang — Wed, 11 Dec 2019 16:42:57 GMT

1) Yes, there is only one Reset pin that is shared with P0.21

All the IO pin on the nRF52832 can use map to any periph with few exceptions such as reset, analog in and NCF are fixed. All others SPI, I2C,... can be mapped to any pins.

Pin map number usually refer 27 as P0.27. Direct mapping to nRF naming.

The BLYST Nano breakout board assign the UART RX to P0.08 and TX to P0.07. Which directly connected to the IDAP-Link USB-UART bridge.

2) Arduino is not at all recommended for BLE firmware. EHAL or the new IOsonata has BLE wrapper functions over the SDK to make it easy for you to write BLE firmware without the headache. Eclipse is open and free, that allows you to use any JTag you like. You can also use the Nordic way but you will be locked in with Segger only, no freedom of choices. SES has a extremely limited functionality, almost no support for C++.

RE: BLYST Nano Installation and example file

Matt74 — Wed, 11 Dec 2019 16:10:54 GMT

Thank you very much for your answers.

1) I did notice the warning "//custom boards may override default pin definitions with BLESerial(PIN_REQ, PIN_RDY, PIN_RST)" But I didn't see any actual hard-coded pin values, only a reference to "BLE_DEFAULT" in BLESerial.h :

BLESerial(unsigned char req = BLE_DEFAULT_REQ, unsigned char rdy = BLE_DEFAULT_RDY, unsigned char rst = BLE_DEFAULT_RST);

What would be the correct pin assignment ? RST seems to be pin 2 i.e. P0.21 but I am not sure about the other two.

(By the way what would be the proper way to refer to a pin for instance to set its behaviour: pinMode(P0.27, INPUT) ?)

2) In a nutshell you do not recommend using Arduino IDE but rather Eclipse (or other) + EHAL, am I right ?

Many thanks !

RE: BLYST Nano Installation and example file

Nguyen Hoan Hoang — Mon, 09 Dec 2019 23:28:17 GMT

1) The generic drive should be OK. You might want to change the pin assignment for the UART to match the BLYST Nano breakout board.

2) Your log showed that it is downloaded ok. But since it was downloaded in two phase. The second download might have erased the first one. If you are using the IDAP-Link for flashing, you can use the IDAPnRFProg as Mojo mentioned. Also the target config nrf52.cfg from OpenOCD is buggy, might not properly flashed. Use this one instead https://github.com/IOsonata/IOsonata/blob/master/ARM/DbgConfig/OpenOCD_nRF52.cfg

Arduino was based on a very old SDK, I think it was 6 or something like that and does not supports Bluetooth 5. The latest SDK 16. Follow the blogs link Mojo provided to work with SDK16 in a much simpler ways than directly using the SDK.

You can find in the SDK precompile hex of many examples. Try the HRS example for instance.

The precompiled hex of BleAdvertiser example from the Blog Post is available here https://sourceforge.net/projects/blyst-nano/files/fimrware/DemoFirmware/

It works with softdevice 7 from the SDK. To flash it, execute this command from the comandline shell

IDAPnRFProg s132_nrf52_7.0.1_softdevice.hex BleAdvertiser.hex

IDAPnRFPorg can be downloaded here sourceforge.net/.../

RE: BLYST Nano Installation and example file

Mojo — Mon, 09 Dec 2019 19:36:19 GMT

Are you downloading it from outside of Arduino IDE or by the Arduino IDE ? By doing a 2 phase flashing, the second write may have erase the first. Are you using the IDAP-Link with it ? if so, use the provided software IDAPnRFProg to flash both softdevice & firmware at once via command line :

IDAPnRFProg /Users/uoc/Library/Arduino15/packages/sandeepmistry/hardware/nRF5/0.6.0/cores/nRF5/SDK/components/softdevice/s132/hex/s132_nrf52_2.0.1_softdevice.hex /var/folders/_p/__54lf114_9cpwbvbrvm_q3m0000gr/T/arduino_build_754463/serial.ino.hex

Arduino is uses a very old SDK. I recommend follow this blog to work with it. It currently works with SDK16.

https://embeddedsoftdev.blogspot.com/2017/

https://embeddedsoftdev.blogspot.com/p/ehal-nrf51.html

RE: BLYST Nano Installation and example file

Matt74 — Mon, 09 Dec 2019 17:15:50 GMT

Thanks for your answer. I did also buy the nRF52 DK but it hasn’t arrived yet. In the meantime I thought I could give the BYST a go. I’ll check your list of softdevices. Cheers !

RE: BLYST Nano Installation and example file

Hung Bui — Mon, 09 Dec 2019 12:28:06 GMT

Hi Matt,

If you are getting started with Nordic IC, I would suggest to get hold of one of our nRF52 Development Kit. With that you can use our nRF5 SDK and follow our getting started guide.

I'm not familiar with the BLYST Nano Exploration kit and can't help you on that. Hope someone else here can help.

To download our softdevices, you can find the list for S132 here: https://www.nordicsemi.com/Software-and-tools/Software/S132/Download#infotabs

RE: BLYST Nano Installation and example file

Matt74 — Sun, 08 Dec 2019 14:45:36 GMT

Note: There is a newer version of the SoftDevice (s132_nrf52_6.1.1_softdevice.hex) available on SourceForge from yokotsuno but this one cannot be flashed. I get an error because Arduino IDE is looking specifically for the 2.0.1 version.