QCT Rackgo X User manual
QCT Rackgo X
OCP Debug Card with LCD
2018/10/15
Agenda
•Overview
•High Level Features
•Mechanical View & Interconnection
•Why Needs This Product
•Key Part Placement
•UART Connection with Host
•LED Panel Content & Display
•Design Files Contribution
•OCP Tenets/Principles
•Summary
2
Overview
•Introduction
-‘’QCT Rackgo X OCP Debug Card with LCD’’ is to intend to ease the debug effort
and time consumed. It already has successfully approved the obvious improvement
of the service efficiency with various compatible systems, for instance, ‘’Tioga
Pass’’ & ‘’Yosemite V2’’.
•Contributions
- Design package
- Product submission to Marketplace
- Product Recognition: Accepted level
•Specification Reference
•Facebook_OCP_Debug_Card_with_LCD_Spec_v1p0
3
High Level Features
4
Prodcut Description Rackgo X OCP Debug Card with LCD
Dimension 70.55 mm(L)x48mm(W)x17.1mm(H)
Electrical Interface
1. USB 3.0 Connector with remapped proprietary singal pin, the USB3.0 connector will
downgrade to support USB2.0 speed only
--USB2.0
--I2C
--PRSNT
--UART
2. Micro USB
3. USB 2.0 type A connector
User interface
--Power/Reset/UART select button
--5‐way switch:
The 5 way switch allows the user to page up or page down through the debug
information on LED panel, for example, post code details/system information/BMC
critical SEL/critical sensor/user settings
--Bluetooth on/off switch:
Turn the battery power on/off to enable/disable Bluetooth module
LED Indicator
1. MCU Heartbeat
2. Bluetooth LED
3. Low Battery LED: red LED on when battery lower than 10%; it’s off otherwise
LCD panel 128x64 dots and can display 8 rows and 16 letters on each row
LED Indicator
LCD panel
DImension
Product Description
Electrical Interface
User interface
Mechanical View & Interconnection
•‘’Debug card with LCD’’ will be plugged
to remapped USB3.0 connector of the
baseboard by cable connection
5
Debug card
with LCD
Baseboard IO side
(Tioga Pass)
Why Needs This Product
➢What is the real situation we are facing now
- For data center user: No user friendly debug utility when
troubleshooting in their working environment
- For server baseboard designer: Hard to find enough IO space for the
debug-purpose I/O ports
•What this product intend to solve
-A text‐rich user interface with an LCD for data center user
- Reserve more I/O space of baseboard for features expansion
6
Key Part Placement
7
Source:Fcebook_OCP_Debug_Card_with_LCD_Spec_v1p0
Block Diagram
8
Source:Fcebook_OCP_Debug_Card_with_LCD_Spec_v1p0
UART Connection with Host
➢UART Connection between Server Board to host side
9
LED Panel Content & Display
•The display provide the information
below:
–POST Code Frame
–System Info Frame
–Critical SEL Frame
–Critical Sensor Frame
–GPIO Status Frame
•If any sensor is out of the threshold,
the whole screen should blink and
invert the color for the sensors which
out of the threshold
10
Source:Fcebook_OCP_Debug_Card_with_LCD_Spec_v1p0
Compatible Components List & User Guide
•‘’QCT Rackgo X OCP Debug Card with LCD’’ could be operated with
–Tioga Pass sled
–Yosemite V2 sled
1
1
QCT Rackgo X OCP
Debug Card with LCD
Rackgo X Yosemite V2 Sled
Rackgo X Tioga Pass Sled
Possibility Of Been Compatible With Previous Generation Platform
[Quanta]
Technically, it is doable to make the previous revision system with old debug interface to communicate with the new
revision debug card by adding one PCA9555 in the interposer card. But it is still a limited communication, it cannot
completely demonstrate the full function of the new debug card. The reason is as below:
We think the major key design of the new debug card is the serial I2C bus compare to old 14 pin debug card. The LCD
debug card is designed to get post code from PCA9555 I/O expander @MB by I2C and get BMC critical event logs from
BMC@MB through IPMB, An option is to design a PCA9555 I/O expander in the interposer card, so that the LCD debug
card can get post code from this PCA9555@interposer card. However, there is no IPMB in the 14-pin header, but still can’t
get BMC critical event log if your previous MB design already frozen. Please refer to diagram below, thanks.
12
Design Files Contribution-
01_Electricals
➢01_Full System Board Layout
13
➢02_Full System Schematic CAD
Design Files Contribution-
01_Electricals
➢03_Full System Component BOM
14
➢04_Manufacturing Files
Design Files Contribution-
02_Mechanicals
➢Mechanical files
15
Design Files Contribution-
03_Software
➢Software files
16
OCP Tenets/Principles
•Efficiency
- To Integrate debug utility & debug message into one small box without
separated utilities and extra effort
- Reserve more front end IO space for more critical IO expansion
•Scalability
- Comply with common debug protocol, like UART, USB
•Openness
- Derive from debug card V1 and with enhanced features
•Impact
- Readable LED & LCD to accelerate the progress of debugging
- Reserve more I/O space of baseboard by designing with serialized electric interface, like
UART/I2C/USB
17
Thanks!!!
19
Table of contents
Other QCT Computer Accessories manuals
