Support AT86RF233

[KwonTae-young]

Is your feature request related to a problem? Please describe.
I'm trying to use AT86RF233 for wireless communication.
My first goal is a 2.4GHz RF wireless keyboard.
SAM R21 was supported in #13494, but currently AT86RF233 support is missing.

Describe the solution you'd like
I want a driver to support AT86RF233.
I want to operate the wireless keyboard with 2.4GHz communication(2Mbps) of AT86RF233.

Describe alternatives you've considered
I have tested two ESB(Enhanced Shock Burst) communications with two nRF52840-PCA10056 boards.(#15607)
test video: https://youtu.be/8rfX-1xxlSI
But it must use nordic MCU.

Additional context
I have no experience dealing with this type of wireless chip.
Sources that use Arduino and AT86RF233 exist in other sites.(arduino-at86rf233)

I connected ST STM32F4DISCOVERY and REB233-XPRO as follows.
The REB233-XPRO is an AT86RF233 module.

pin	AT86RF233(REB X-Pro Extension Header)	STM32F4-DISCO
Reset	7	PB0
Interrupt	9	PB1
Sleep	10	PB2
CS	15	PA4
MOSI	16	PA7
MISO	17	PA6
SCK	18	PA5
Ground	19	GND
Power	20	VDD (3V)

And I read the part number, version, and main id through SPI communication.

west init zephyrproject -m https://github.com/KwonTae-young/zephyr/ --mr at86rf233
cd zephyrproject/zephyr
source zephyr-env.sh
mkdir samples/drivers/rf/spi_at86rf2xx/build
cd samples/drivers/rf/spi_at86rf2xx/build
cmake -DBOARD=stm32f4_disco ..
make -j8 flash

console output

***** Booting Zephyr OS zephyr-v1.13.0-6846-gf3409e84cf63 *****
AT86RF2XX(2.4GHz Transceiver) example application

PART_NUM:0xb
VERSION_NUM:0x1
MAIN_ID:0x1f

I would like help from people who are interested in AT86RF233.

[tbursztyka]

My first goal is a 2.4GHz RF wireless keyboard.

Do you know the protocol used by the keyboard?
Zephyr provides support for IEEE 802.15.4 + 6LoWPAN, but nothing for Zigbee (which is kind of proprietary I believe. Correct me if I am wrong).

Since it is an Atmel chip, ASF should provide support for it. It would require to import the necessary bits from ASF into ext/hal/atmel/asf.

If and only if you are interested in 802.15.4:
It is "just" a matter of implementing a zephyr driver using this HAL and implementing this interface include/net/ieee802154_radio.h , see drivers/ieee802154/ for some examples

[KwonTae-young]

@tbursztyka

Do you know the protocol used by the keyboard?

I want to wirelessly receive the data and output it to the HID keyboard.
I have tried HID keyboard.

It would require to import the necessary bits from ASF into ext/hal/atmel/asf.

Later, I'm trying to reference the ASF.
But I am still immature at the use of Atmel.:sweat_smile:

If and only if you are interested in 802.15.4

I have not planned to use IEEE 802.15.4 yet.
In some cases, i can send a string, but IEEE 802.15.4 has a slower bit rate (250kbps).

I'm sorry I do not have enough English. :)
Thank you.

[KwonTae-young]

I have done a very basic Tx/Rx communication test of the AT86RF233.
The source worked much with msolters/arduino-at86rf233.
I tested it in Extended Operating Mode instead of IEEE 802.15.4 mode.

The main communication settings are as follows.

SFD(Start-Of-Frame Delimiter): 0x12
Data Rate: 2000kb/s

The program is designed to operate in one-sided Tx/Rx mode.
You can switch Tx/Rx mode by using #define WRITE comment processing.

I have prepared two stm32f4_disco and AT86RF233 modules for testing.
One works as Tx and the other works as Rx.

The Tx board sends 23 bytes at 1 second intervals.

Build as follows.

west init zephyrproject -m https://github.com/KwonTae-young/zephyr/ --mr at86rf233
cd zephyrproject/zephyr
source zephyr-env.sh
mkdir samples/drivers/rf/spi_at86rf2xx/build
cd samples/drivers/rf/spi_at86rf2xx/build
cmake -DBOARD=stm32f4_disco ..
make -j8 flash

Below is the log.

Tx

***** Booting Zephyr OS zephyr-v1.13.0-6847-g552ae3411921 *****
AT86RF2XX(2.4GHz Transceiver) example application

PART_NUM: 0xb
VERSION_NUM: 0x1
MAN_ID: 0x1f
sfd: 0x12
DATA RATE: 2000kb/s
tx_power: 4[dBm]

setting end

Rx

***** Booting Zephyr OS zephyr-v1.13.0-6847-g552ae3411921 *****
AT86RF2XX(2.4GHz Transceiver) example application

PART_NUM: 0xb
VERSION_NUM: 0x1
MAN_ID: 0x1f
sfd: 0x12
DATA RATE: 2000kb/s
tx_power: 4[dBm]

setting end
[at86rf2xx] EVT - RX_START
[at86rf2xx] EVT - RX_END
read 23byte
data[23]: 0x12 0x34 0x56 0x78 0x9a 0xbc 0xde 0xff 0x11 0x22 0x33 0x44 0x55 0x66 0x77 0x88 0x99 0xaa 0xbb 0xcc 0xdd 0xee 0xff

[at86rf2xx] EVT - RX_START
[at86rf2xx] EVT - RX_END
read 23byte
data[23]: 0x12 0x34 0x56 0x78 0x9a 0xbc 0xde 0xff 0x11 0x22 0x33 0x44 0x55 0x66 0x77 0x88 0x99 0xaa 0xbb 0xcc 0xdd 0xee 0xff

As advised by @tbursztyka, i need to get the necessary information from the ASF to the BIT information of AT86RF233.
At first, the basic operation was aimed, and yet this source is a mess.

[nandojve]

Hi @KwonTae-young, if you are interested yet on RF2xx driver please take a look at #20296. We merged a full functional 2.4GHz driver. It was tested by Tridonic for Openthread compatibility too.
I hope it can help you!

[p0we7]

Hello, @KwonTae-young , from your description it seems that you have completed a prototype of the NRF52840 using ESB in Zephyr, can you provide more information on this?

[KwonTae-young]

Hello, @KwonTae-young , from your description it seems that you have completed a prototype of the NRF52840 using ESB in Zephyr, can you provide more information on this?

@p0we7 ESB-related examples were located in other repositories.(#15607)
https://github.com/NordicPlayground/fw-nrfconnect-nrf/tree/master/samples/esb