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| == FAQ ==
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| == Downloads == | | == Downloads == |
| :* [[media:DHCOM_schematic_symbol_R01.zip|Download schematic symbols for DHCOM SODIMM-200 and display adaptor connector]] | | :* [[media:DHCOM_schematic_symbol_R01.zip|Download schematic symbols for DHCOM SODIMM-200 and display adaptor connector]] |
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| == Hardware Errata == | | == Available Documents from Freescale == |
| VCC_BAT errata:
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| Description: If VCC_BAT does not go down to 0V the processor may hang during power-on cycle.
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| Workaround: Don't connect a battery or a gold cap to the VCC_BAT pin (pin 200) on the SODIMM-200 connector. In addition to that you can't buffer the date and time information.
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| Affected serial numbers:
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| 1164AA KA11.0328 ... (DH HW Version 406-200)
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| 11641A KA11.0328 ... (DH HW Version 406-200)
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| SPI Flash errata:
| | [http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX255 Productoverview i.MX25 at Freescale Website] |
| Description: Boot from SPI Flash is not possible, because the wrong CS is connected to the serial flash memory.
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| Workaround: -
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| Affected serial numbers:
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| 1164AA KA11.0328 ... (DH HW Version 406-200)
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| 11641A KA11.0328 ... (DH HW Version 406-200)
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| UART1 CTS and RTS errata:
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| Description: DHCOM UART1_CTS and UART1_RTS inverted.
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| Workaround: Don't use hardware flow control.
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| Affected serial numbers:
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| 1164AA KA11.0328 ... (DH HW Version 406-200)
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| 11641A KA11.0328 ... (DH HW Version 406-200)
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| 51112... (DH HW Version 406-200)
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| 50112... (DH HW Version 406-200)
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| == SD interface wire length == | |
| The max. wire length from the SODIMM-200 connector to the SD Card Slot is 80mm (without buffer).
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| == Released MicroSD Cards ==
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| ATP AF128UDI141313M82LTAAS-10 128MB Industrial Card
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| Delkin SD128HSSD-S2047-B 128MB Industrial Card
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| ATP AF1GUDI261313M82LTAAS-10 1GB Industrial Card
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| Delkin SD01GHSSD-S2047-B 1GB Industrial Card
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| ATP AF2GUDI461313M82LTAAS-10 2GB Industrial Card
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| Transcend TS2GUSD 2GB No industrial Card
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