BIOS/Flash Setting & Programming
Programming the BIOS on Willem enhanced programmer is easy, as long as we select the right chip type and right jumper. Here is an example for programming on a N82802AB of Intel845 mother board (3.3V) Note: when programming N82802AB chip, a 12V programming voltage is needed. So, to prevent chip damaged by hi-voltage, please enable the Safety Protection Jumper. |
Select chip type and software setting
Now you can see following setting:
DIP position shown above: OFF, ON, ON, OFF, ON, ON, OFF, ON, OFF, ON, OFF, ON
Chip's parameter is shown below the Chip Select Button. Normally, there is no need to adjust these parameters, use the default value. Size & Checksum: shows chip's capacity and data buffer's checksum. Shift & Pattern address: shows chip's address line to be used and highest address bit. tWP/WC: shows programming pulse width and delay time.
Check chip's position After setting the DIP switches, check the chip's position. For a BIOS chip, it should be placed in the 32 pins ZIF socket. For N82802AB chip, the program will prompt the user for a FWH/LPC adaptor (Note PCB4.5 has one on-board).
Note: Please make sure of the pin one position on the FWH/LPC adapter. Note also that PCB4.5C has the FWH/LPC on-board. |
Note: 1 - Displayed chip's parameter does not require adjustment. 2 - DIP is set differently when programming a different chip. 3 - For EPROM chip, we need resetting the DIP, special chip and special voltage follow the software prompts.
Reading from a chip After selecting the chip, we can click on the "Read" button. All data will be put into the buffer. When reading the chip, the yellow LED will be light up, indicating that the voltage has been applied on the chip.
Programming After inserting the chip, click on "Open file" to open your data file. Then click on "Program Chip" button. Note, some of chips need to be erased before write. When programming, the yellow LED will be on. If the chip needs a Vpp programming voltage, the red LED will be on.
C opy a chip: 1) Select the chip type and then put in the original chip. 2) "read" the data into buffer. 3) Put in the target chip and then click "Program Chip".
Note: the chip may be damaged if wrong chip type selected or chip is inserted in the wrong direction into the socket.
The following parameters are for advanced users only.
R/C delay time: programming pulse delay. If your computer is too fast, you may need increase the delay. Skip Write 0xFF: Enable this setting will skip the 0xFF when programming. Fast Programming: For a fast programming mode if it is enabled. Printer Port: LPT1(0X378), printer port selected. Offset: set to start programming at offset address. Check Type: You can select the way to check either 32 bit CRC or 16 bit add.

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