If the firmware must be manually reinstalled for any reason, follow these steps to reinstall the firmware. Make sure the EVM is connected to the SCB.
- First, see if the GUI can program the firmware
manually.
- Plug in the SCB controller to the PC.
- Launch the GUI.
- It is possible that the MCU has already entered
Device Firmware Update (DFU) mode. If so, the GUI can provide a
notification and try to update the firmware to the latest version.
- If the GUI does not update automatically, go to
File > Program Device...
- If the Program Device button is grayed out,
make sure the device is connected in the bottom left corner before
programming.
- If Step 1 is unsuccessful (or if the Program Device button is
still grayed out), manually configure the MCU on the SCB Controller to be in DFU
Mode. This can be done through either of the below methods with the SCB
Controller powered on:
- Through software:
- Send the command
bsl on the USB Serial (COM) port of the
SCB.
- Though hardware:
- For safety, turn
off and disconnect all load sources and external
voltages.
- While shorting the two test points labeled
DFU (shown in Figure 3-3) with a pair of tweezers (or wire), press and release the
reset (RST) button.
- If the PAMB board is being used instead,
these test points are located near PK1 and PK2.
With the MCU in DFU mode, the firmware can now be uploaded through the method outlined in Step 1.