Development Board Physical Reference
56 Development Kit User’s Manual
4.7 Other Headers
4.7.1 H8 Programming Headers
The microcontroller firmware for system management/keyboard/mouse control can be
upgraded in two ways. The user can either use a special DOS* utility (in-circuit) or
use an external computer connected (remote) to the system via the serial port on the
board.
If the user chooses to use an external computer connected to the system via the serial
port, there are four jumpers that must be set correctly first. Please refer to
2Table 22
for a summary of these jumpers and refer to Figure 7 for the location of each jumper.
Required Hardware: One Nul
l Modem Cable and a Host Unit with a serial COM port
(System used to flash the SUT).
Here is the sequence of events necessary to program the H8.
1. Extract all files (keep them in the same folder) to a single directory of your choice
on the host machine or on a floppy disk.
2. Connect a NULL modem cable to the serial ports of each platform (host and unit to
be flashed).
3. With the board powered off, move the following jumpers to the programming
stuffing option.
4. J9G2 (remove) (default: 1-2), Sets SMC_INIT_CLK high.
5. J7A1 (2-3) (default: 1-2), link the Host Unit to On Board H8.
6. J8B2 (2-3) (default: 1-2), link the Host Unit to On Board H8.
7. J9H1 (1-2) (default: 1-X), disable 1 Hz Clock.
8. Attach an AC brick or an ATX power supply to the system and power up the board.
9. From the directory where you extracted the files, run the “kscflash ksc.bin /
remote” command to program the H8 via the serial port.
10. Follow the instructions the flash utility provides.
11. With the board powered off, return the jumpers to their default setting.
Note: Make sure the board is not powered on, and the power supply is disconnected before
moving any of the jumpers.
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