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akidder
1519 Posts |
 Posted - 18 Dec 2006 : 15:58:13
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Sphere II User's Manual (rev 1,  PDF 1 MB)
The Sphere II is a full-featured single board computer driven by the highly integrated Cirrus Logic EP9315 ARM system-on-chip processor. Among other features, the EP9315 supports Ethernet, USB, EIDE, LCD displays and includes a floating point math engine optimized for digital music compression and decompression.
The Sphere II is the successor to the ADS Sphere product. The Sphere II adds a battery for the real-time clock and surface mount headers, which slightly increased the size of the Sphere II over the original Sphere.
The Sphere is designed to meet the needs of embedded and graphical systems developers whose applications require low power, a small form factor and an aggressive price point.
Changes, updates and errata for this document will appear as replies to this topic as they become available.
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grenierm
133 Posts |
Posted - 11 Oct 2007 : 13:35:54
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Erratum: J12 (USB, I2C, SSP, CAN, IrDA)
MISO/MOSI pin connections are incorrect in rev 1 of the Sphere II user manual. They should be flipped and therefore the pin connections are:
J12.31 = MISO
J12.32 = MOSI
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jjoseph
47 Posts |
Posted - 11 Mar 2008 : 11:38:49
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Addendum: Sphere II Changes from Rev A to Rev B
Reduced EMI (filtering and routing of pixel clock and SDRAM clock signals)
Improved temperature stability of memory clock signals
Changed CompactFlash connector (J9) from EOL part.
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ljoy
22 Posts |
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cbadr
154 Posts |
Posted - 03 Oct 2008 : 18:10:39
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Addendum: JP6 and JP7 for EIA-485/422
While section 3.3.6 in the manual describes the setting of jumpers JP6 and JP7 for EIA-485, those settings should work for EIA-422. EIA-485 is currently not supported on Sphere II. |
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cbadr
154 Posts |
Posted - 13 Oct 2008 : 15:39:29
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Note: SLA[1:0] Not Available as GPIOs
Sections 3.4.12 and 4.5.1 of the manual mention that pins J12.33 and J12.34 or SLA[1:0] can be used as GPIO pins. However, this is not currently supported in Sphere CE software. You can find a listing of the GPIO bit to signal map for Sphere on topic 1788. |
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grenierm
133 Posts |
Posted - 17 Dec 2009 : 12:38:54
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Addendum: Sphere Inrush Current
The Sphere II draws a 3.3V inrush current of 1.75 to 2.25 amps at boot.
Eurotech recommends to use a power supply than can provide 3.3V at 3A for at least 2ms to ensure reliable boot of the Sphere board. If you have a 3.3V LCD display connected, increase the power supply capacity accordingly.
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twhite
133 Posts |
Posted - 22 Jul 2010 : 17:01:16
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Erratum: Page 18, J4 Pin 29
On page 18 of the user manual, J4 pin 29 should be named "HP_IN" and being an Input. Description should be, "Control of headphone/speaker mode (4.3.2)".
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akidder
1519 Posts |
Posted - 04 Apr 2011 : 17:15:55
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Clarification: Sphere Production Options, LVDS
The Sphere II can be built with a a number of production options, which are outlined in the Sphere user manual. Development systems ship with most features supported (e.g. RTC, CAN bus, four-wire touch panel, and EIA-232 serial ports).
LVDS support is a production option, and requires different CPLD code to sequence the display. It is not included in standard Sphere configurations. Please discuss any LVDS requirements with your sales representative before ordering. |
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