CARMA DevKit

CARMA DevKit (SECOCQ7-MXM) is a development board from SECO accomodating a Qseven Module, such as the QuadMo747-X/T30 NVIDIA Tegra3 CPU module, as well as an MXM GPU module, power supplies and I/O connectors. User Manual (local copy).

Power Conditioning

The CARMA DevKit is supplied with 19VDC from an external supply via connector CN13 and then through 4A fuse M3.

The Qseven module (plugged into CN1) requires regulated +5VDC +/-5% on pins 211 through 230 (2 rows of 10 consecutive pins). This +5V supply is de-coupled to ground by dual 220uF caps C3 (+10V) and 4 ceramic caps C4, C5, C6 and C7.

The +5V is supplied by pins 5 - 8 of Q27 (Fairchild FDS6679AZ − -30V P-Channel PowerTrench® MOSFET, marked "PAFCP FDS 6679AZ"), and a further 4 decoupling capacitors are located near to this device (C125, C126, C127 and C128).

This +5V supply also supplies:

• the +5V to the 4-pin power connector (CN18) for the SATA drive
• pins 1 & 2 of CN21 ("Internal USB 2.0")
• pullups on pins 1 & 2 of CN14 ("Frontal")

Purchase

The MLitMCE module (s/n 12240757) was purchased from SECO on 2012-10-26, invoice #990000037

External links

• seco.com - SECO website