Archive for October, 2009

presented at weekly meeting Tues 10/27

DCtest

Eric

chippic1chippic2

higher res pictures should be taken later

…and it seems to be working

Eric

Latest Firmware

Latest PCB

-Larry Ruckman

The firmware is completely written.  Here’s the report from compiling it.

==============================================

This firmware includes:

-USB interface

-PLL CTRL

-PS_TDC_01 ASIC readout [3x RAMS]

-Chipscope [11x RAMS = 4096 samples deep by 43 bits wide]

-Basic CTRL_loop for (VG2P,VG2N) and (VCP,VCN) [2x RAMS]

==============================================

Here are some questions that I had while writing the firmware.

-What should “V_POL” be set to?

-Are we unable to monitor (VSW_P,VSW_N)?  If yes, what static voltages should I set these two pins to?

-What’s the frequency range for “CK_CV”?

==============================================

-Larry Ruckman