I have developed a custom board using the XU316-1024-QF60B. The design is based/tested on the USB MULTICHANNEL AUDIO EVALUATION KIT which uses a XU316-1024-TQ128 and the firmware is based on the sw_usb_audio example. I used the eval kit to develop the firmware and determine which parts I would like to use.
The kit is configured to work as an Asynchronous USB stereo input/output, 48000 Hz, 32 bit with the I2S Codec as the master for the I2S line. This works on both boards. The problem I am encountering now is that the flash present on the circuit board can be flash using the XFLASH command from XTC. But when starting the device it is not starting using any firmware. I also verified that the boot procedure selection pins (X0D04, X0D05 and X0D06) are all in a low state at startup, thus selecting the QSPI flash I expect to use.
I know the flash is programmed correctly because the command:
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xflash --verbose --read-all --target-file {board file} -o temp.bin
Does anyone have any idea what is wrong? The following is the board configurtion file, the PCB schemtic file is attached to this message.
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<?xml version="1.0" encoding="UTF-8"?>
<Network xmlns="http://www.xmos.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.xmos.com http://www.xmos.com">
<Type>Board</Type>
<Name>XS3-UnA-1024-QF60B</Name>
<Declarations>
<Declaration>tileref tile[2]</Declaration>
</Declarations>
<Packages>
<Package id="0" Type="XS3-UnA-1024-QF60B">
<Nodes>
<Node Id="0" InPackageId="0" Type="XS3-L16A-1024" Oscillator="24MHz" SystemFrequency="600MHz" ReferenceFrequency="100MHz">
<Boot>
<Source Location="bootFlash"/>
</Boot>
<Tile Number="0" Reference="tile[0]">
<Port Location="XS1_PORT_1B" Name="PORT_SQI_CS"/>
<Port Location="XS1_PORT_1C" Name="PORT_SQI_SCLK"/>
<Port Location="XS1_PORT_4B" Name="PORT_SQI_SIO"/>
<!-- Various ctrl signals -->
<Port Location="XS1_PORT_8D" Name="PORT_CTRL"/>
<!-- I2C -->
<Port Location="XS1_PORT_1L" Name="PORT_I2C_SCL"/>
<Port Location="XS1_PORT_1M" Name="PORT_I2C_SDA"/>
<!-- Clocking -->
<Port Location="XS1_PORT_16B" Name="PORT_MCLK_COUNT"/>
<Port Location="XS1_PORT_1D" Name="PORT_MCLK_IN_USB"/>
<Port Location="XS1_PORT_1A" Name="PORT_PLL_REF"/>
</Tile>
<Tile Number="1" Reference="tile[1]">
<!-- Audio Ports: I2S -->
<Port Location="XS1_PORT_1D" Name="PORT_MCLK_IN"/>
<Port Location="XS1_PORT_1B" Name="PORT_I2S_LRCLK"/>
<Port Location="XS1_PORT_1C" Name="PORT_I2S_BCLK"/>
<Port Location="XS1_PORT_1G" Name="PORT_I2S_ADC0"/> <!-- 1G / 1I -->
<Port Location="XS1_PORT_1F" Name="PORT_I2S_DAC0"/> <!-- 1F / 1P -->
</Tile>
</Node>
</Nodes>
</Package>
</Packages>
<Nodes>
<Node Id="2" Type="device:" RoutingId="0x8000">
<Service Id="0" Proto="xscope_host_data(chanend c);">
<Chanend Identifier="c" end="3"/>
</Service>
</Node>
</Nodes>
<Links>
<Link Encoding="2wire" Delays="5clk" Flags="XSCOPE">
<LinkEndpoint NodeId="0" Link="XL0"/>
<LinkEndpoint NodeId="2" Chanend="1"/>
</Link>
</Links>
<ExternalDevices>
<Device NodeId="0" Tile="0" Class="SQIFlash" Name="bootFlash" PageSize="256" SectorSize="4096" NumPages="8192">
<Attribute Name="PORT_SQI_CS" Value="PORT_SQI_CS"/>
<Attribute Name="PORT_SQI_SCLK" Value="PORT_SQI_SCLK"/>
<Attribute Name="PORT_SQI_SIO" Value="PORT_SQI_SIO"/>
</Device>
</ExternalDevices>
<JTAGChain>
<JTAGDevice NodeId="0"/>
</JTAGChain>
</Network>
Thanks for you advice.
Bram