Bluetooth Xpress Firmware Release Notes

Silicon Labs Bluetooth Xpress devices BGX13S and BGX13P contain firmware that can be updated. These signed and encrypted firmware updates can be pulled from Silicon Labs' server using the BGX Commander mobile app. More information about BGX Commander can be found at the following link:

https://docs.silabs.com/gecko-os/1/bgxhost/framework/latest/bgx-commander-overview

Your own mobile apps can also pull updates using the BGXpress framework, which is described at:

https://docs.silabs.com/gecko-os/1/bgxhost/framework/latest/index.

The following tables shows the production firmware version per part number:

BGX13P22GA-V21/R

Date CodeVersionBoot loaderDescription
before 18411.0.880.1880Initial production
1841 and later1.0.927.2927Production update (PCN link)
1909 and later1.0.927.21261Security update (PCN link)

BGX13S22GA-V21/R

Date CodeVersionBoot loaderDescription
before 19091.0.927.1927Initial production
1909 and later1.0.927.21261Security update (PCN link)

The list below provides a summary of changes between firmware versions.


1.1.1524.1 (2019-04-03)

Bug fixes and improvements

IDDescription
2217Previously received UART data is now flushed when switching modes.
2221Fixed issue where device briefly (~30 ms) advertised after closing an active BLE connection due to a request to enter deep sleep mode.
2229Console no longer accepts invalid characters as variable values and command parameters.
2243Fixed issue where "scan" command response header could report an incorrect response data length.
2244Fixed issue where UART could transmit an invalid character after reception of the "reboot" command.
2304Fixed issue where acknowledged writes in the Central-to-Peripheral direction took twice as long to complete as acknowledged writes in the Peripheral-to-Central direction.
2320Connect, advertise, and scan commands can be issued while device is in deep sleep mode.
2327Fixed issue where con_status_led pin did not blink when device was in deep sleep mode.
2343Fixed issue where under certain very high throughput data scenarios (2Mbps UART baud rate, 2M or 1M BLE PHY), the BLE connection could hang.
2357Fixed issue where device would advertise while connected if the connection was established while it was in sleep mode.

1.1.1229.0 (2019-01-14)

New Features

IDDescription
1967Add support for LE Coded PHY.
2012Add new variable "bl p m" BLE Phy Multiplex. Enables advertising on both 1m and Coded PHY's.
2117Add new variable "bl v p" BLE adVertising Preference. Selects default mode when automatically starting advertising.
2137Add options to "clrb" command to allow deletion of selected bonds.
2139Add new option "off" to "bl e p" BLE Encryption Pairing. Disables all pairing.
2160"gdis" command automatically reconfigures pins configured as "none" to "stdio".
2214Add new command "rssi". Returns RSSI value during an active connection.

Bug fixes and improvements

IDDescription
1995Fixed issue where advertising did not start automatically when scanning stopped.
1996Fixed issue where "str_select" input did not switch out of "remote bus mode".
2007Updated "con" command to close the connection and return "security mismatch" error for all pairing failures.
2036"gdis" command verifies that the specified configuration is valid for all pins before re-configuring any pins.
2040Updated "scan" command to display all device names including shortened names.
2096Fixed issue where notification of bus mode was not sent if "str_select" was assigned to a pin.
2113Request for preferred PHY is now made from the central device.
2124Changed default system product info string (sy i p) from "Blue Gecko Xpress" to "Bluetooth Xpress"
2138Changed peripheral to accept all pairing requests, even when a bond already exists.
2152Changed default BLE Encryption Pairing (bl e p) from "secure" to "any".
2162Updated "con" command to not retry after "Timeout" error.
2174Fixed issue where central BGX did not return to sleep mode after disconnecting if it was sleeping before connecting.
2182Updated "con" command to always set scan timing for 100% duty cycle. Updated "scan" command to scale scan timing 3X for the Coded PHY.
2185Fixed issue where scan low and high durations were swapped.
2189Fixed issue where "con" command could hang after several failed attempts.
2196Fixed issue where "str_active" and "str_active_n" pin functions did not work correctly when "str_select" was also assigned.
2202Fixed issue where device would stay in "remote bus mode" on disconnect if "str_select" was assigned.
2203Fixed issue where certain GATT procedure errors would cause an active connection to drop.
2204Fixed issue where data could be dropped when using UART flow control and acknowledged (Indication/Write With Response) BLE writes.
2207Fixed issue where RTS would come out of reset de-asserted for baud rates less than or equal to 9600 bps.
2212Fixed issue with UART driver that could result in data corruption at high speeds.
2215Fixed issue where CTS never asserts if a connection drops while CTS is de-asserted. This had the effect of hanging the UART interface.
2218Fixed issue where UART flow control stopped working when switching from a baud rate above 9600 bps to a baud rate less than or equal to 9600 bps.
2219Fixed issue where BGX could stop receiving UART data once its receive buffer filled up at low (<= 9600 bps) baud rates.
N/A"rbmode" command now returns error if changing the mode on the remote device failed.
N/A"adv" and "scan" commands now fail if run while a connection is active.
N/AFixed issue where "dtm tx start" with packet type "pn9" would always fail.

1.0.927.2 (2018-08-03)

Bug fixes and improvements

IDDescription
1933Updated "save" command to correctly store the "uf u" variable.
1943Removed NULL character from output of "gges" command.
1957Fixed issue where "set" command crashed if parameters were longer than 16 characters.

1.0.880.1 (2018-06-21)

Initial production release.