Updating the Firmware of NT Modules
All NT modules can be updated with a new firmware using the procedures below.
Since firmware version v2.xx it is possible to upgrade an individual NT module with the module being installed in the gimbal. No disconnecting, no other hassles. Furthermore, no additional hardware such as a USB-TTL adapter is needed; one simply connects the STorM32 board to the GUI. Very convenient. This "in-situ" upgrading procedure is called "Upgrade via STorM32 USB port".
The older procedure of using an USB-TTL adapter connected to the NT bus plug, which may be useful whenever a separate NT module shall be upgraded, is available as "Upgrade via System Bootloader @ UART1".
Comment: Updating implies that the module has a NT firmware running. If the module has never been flashed with a NT firmware before, or runs a different firmware, you must first do a "First-Time Flashing". Please consult the respective wiki pages.
Upgrading via STorM32 USB Port
1. Connect the STorM32 board via its USB port to a computer, open the GUI, and go to the [GUI:Flash Firmware] tab.
2. Select the correct port in the [GUI:Port] field (it's the same port you choose when connecting to the GUI).
3. Choose the NT module in the [GUI:Board] combo box. Select the firmware via the [GUI:Firmware Version] field, or via the [GUI:Selected Firmware Hex File] text field. Select "Upgrade via STorM32 USB port" in the [GUI:STM32 Programmer] field. Importantly, choose which NT module shall be upgraded in the field [GUI:Module Id].
4. Hit the [GUI:Flash Firmware] button. A confirmation message box will open i.e. looking like the following:
5. If you are sure the selected module type and firmware to be flashed are correct 'okay' the message box and a DOS box will open. Within the new DOS box the firmware will be flashed.
Upgrading via System Bootloader
1. You need a USB-TTL adapter with a FTDI chip set, CH340 chip set, or properly configured CP2102 (not PL2303). Ensure that it is working (drivers installed, etc.).
Comment: To avoid confusion about which USB-TTL adapter work, please read FAQ: Which USB-TTL should I use?.
2. Connect the USB-TTL adapter to the NT bus connector.
- GND -> connect it to GND of the USB-TTL adapter
- Tx -> connect it to Rx of the USB-TTL adapter
- Rx -> connect it to Tx of the USB-TTL adapter
- VCC -> connect it to power from the USB-TTL adapter
The connections between USB-TTL adapter and NT module are shown in the scheme below.
Comment: For the CC3D Atom this power scheme often doesn't work. Please use an external power supply, or power it via its USB connector.
3. Connect the USB-TTL adapter to the computer and open the GUI.
4. Go to the [GUI:Flash Firmware] tab as seen below. Choose the NT module in the [GUI:Board] combo box. Select the firmware via the [GUI:Firmware Version] field, or via the [GUI:Selected Firmware Hex File] text field. Select "Upgrade via System Bootloader @ UART1" in the [GUI:STM32 Programmer] field, and the [GUI:Com Port] associated with your USB-TTL adapter.
5. Hit the [GUI:Flash Firmware] button. A DOS box will open, and the firmware will be flashed.