If the firmware must be manually reinstalled for
any reason, then 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
- A possibility is the MCU
has already entered Device Firmware Update (DFU) mode. If so, then the
GUI can notify and try to update the firmware to the latest
version.
- If the GUI does not update
automatically, then go to File > Program Device....
- If step 1 is unsuccessful (or if the
Program Device button is grayed out), then 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.
- Through hardware:
- For safety, turn
off and disconnect all load sources and external voltages.
- While shorting the
two test points labeled DFU (shown in Figure 4-1) with a pair of tweezers (or wire), press and release the
RESET button.
- If using the PAMB
board instead, then these test points are placed near PK1 and
PK2.
With the MCU in DFU mode, the firmware can now be
uploaded through the method outlined in Step 1.