DO NOT INSERT DEVICE YET!

To use this page you must first create a file  suitable for burning into your chip.  For most chips we will create a *.hex file from running an *.asm file through the XASM assembler.  The exception is the GAL16V8 which requires a JEDEC file.  The procedures for this can be found at http://www.princeton.edu/~mae412.

Follow red instructions if you are using the 2532 or the 2532A.
Follow green instructions if you are using the 27C64.
Follow blue instructions if you are using the 28C64.
Follow purple instructions if you are using the GAL16V8. 
Follow black instructions for all chips.
 

EMP-21 Programmer should automatically turn on when software is started, unlike the EMP-20 which has a switch in the back.  There is a power light next to the ZIF socket (Zero Insertion Force) and the ZIF’s handle should be straight up.

The power light has three colors:

GREEN for successful programming of a chip.  Also the default color.
YELLOW for a burn in progress.
RED for a failure during programming.  Light will cleared by the next successful programming.

In the MAE412 folder double click the EMP21 shortcut or from the Start menu, go to All Programs >> nei >> EMP Device Programming Software.

When the Device programmer search screen appears, press the OK after you match the settings with the figure above.

NOTE: As of Spring 2008, we are using USB vs Parallel Port.

The Programmer should now be displayed, click the  button.

After the software builds a devices list the Device Selection window should appear.

Please ensure that the Package selected is DIP (Dual In line Package).  Pincount & Data Width(bits) will be selected automatically.

Under Manufacturer click  TI , then TAB over to Device and select TMS2532 or the TMS2532A depending on your chip.
Under Manufacturer click  AMD, then TAB over to Device and select AM27C64 .
Under Manufacturer click  Atmel, then TAB over to Device and select AT28C64B .
Under Manufacturer click  Lattice , then TAB over to Device and select GAL16V8.

Press OK.

If your chip is UV eraseable(EPROM), then press "blank check" to ensure a blank chip. Not need for EEPROM or GAL.

In the Programmer window, click on the button.

In the Buffer Editor, we first need to fill the buffer so that all the locations are at the same erased state as the chip that will be programmed.  For our chips the erased value is 1111 1111 binary or FF hex. So a proper fill is done by pressing the button.

Now it's time to load your *.hex (*.jed) file.  Press the button and navigate to your file.

NOTE: on Windows 98 machines, your file should be under C:\My Documents\user.

Our XASM created file uses Intel Hex were as the file for the GAL16V8 needs JEDEC selected.

The Load file option window will appear.

Set the File range from 0000F000 to 0000FFFF.
Set the File range from 0000E000 to 0000FFFF.
Set the File range from 0000E000 to 0000FFFF.
Not needed for the GAL16V8.

Set the Buffer range from 00000000 to 00000FFF, then press OK.
Set the Buffer range from 00000000 to 00001FFF, then press OK.
Set the Buffer range from 00000000 to 00001FFF, then press OK.
Not needed for the GAL16V8.
 

Now that your buffer is loaded, check the end of the buffer to see that the last four bytes are no longer FF.

This is your "reset vector".

Now you can close the Buffer Editor and return to the Programmer.

In the Programmer window, click on thebutton only if you are using an UV erasable device (i.e. 2532A or 27C64).  Electrically erasable devices will "Patch" the new program  over top the old one.  UV erasable devices can not be erased by the programmer.  Therefore they have to be blank before programming.

Now look at the Programmer window to see if the Family Module matches what is physically in the EMP-21. 

Now you can insert your chip into the ZIF socket, following the picture on the case.

You are ready to program.  Press the button.

 Choose Yes and wait for the light to change from yellow to green.

If the light changes to red, then erase or replace the chip and try again.

If the default settings are in place the software should automatically verify that what is in the chip matches the buffer.

If it doesn't, press the button.

Remove your chip.  Programmer will automatically turn off when program is closed.