HCI ACK format

[tni]

I like to implement transfer layer on UART communication, since data error is possible on UART.

I read this "UART HCI protocol" document on Nordic SDK.

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v13.0.0%2Fser_phy_uart_hci_page.html

But I cannot find byte array of ACK.

Do you have sample byte array of ACK:2 ?

If RFC document define this SEQ - ACK protocol, I like to know RFC number.

Thanks,

[Emil Lenngren]

This protocol is defined in the Bluetooth Core specification, Vol 4 Part D (Three-wire UART transport layer). You should look there for the exact byte format.

An acknowledgement can either be a pure ack packet without any payload, or piggybacked on a normal data packet. All packets use the same header format and optionally a crc.

[tni]

Thanks. I read part of Bluetooth Core specification.

I like to make sure how Sequence number and ACK works.

I like to see actual log of HCI with SLIP and Packet header.

Is there sample capture file, or Nordic has sample for HCI SLIP and Packet header?

[ovrebekk]

Hi 

I don't think we have such a sample, no. 

You could run one of the hci samples (hci_uart or hci_usb for instance) on a Nordic DK, and log the HCI messages. You just need a HCI host to communicate with it. 

Do you have any Nordic DK's available? If so, which ones?

Best regards
Torbjørn