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9. Board   Verification  
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The ? On ? Board ? Diagnostic ? Scan ? (OBDS) ? tool ? used ? by ? the ? factory ? acceptance ? test ? tools ? is ? included ? on ? the ?
MicroSD ? card ? image ? that ? is ? shipped ? with ? the ? i.MX53 ? Quick ? Start ? board. ? If ? the ? original ? image ? is ? corrupted ?
or ? over ‐ written ? by ? the ? software ? developer, ? a ? fresh ? image ? can ? be ? downloaded ? from ? the ?
freescale.com/imxquickstart ? web ? site. ?
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To ? access ? the ? OBDS ? tool, ? a ? serial ? cable ? and ? a ? host ? PC ? running ? a ? terminal ? program ? (Tera ? Term, ?
HyperTerminal, ? etc) ? will ? be ? required. ? After ? connecting ? the ? host ? terminal ? to ? the ? Quick ? Start ? board, ? press ?
the ? power ? button ? on ? the ? board. ? Before ? U ‐ BOOT ? completes ? the ? Autoboot ? countdown ? (3 ? seconds) ? press ?
any ? key ? on ? the ? host ? computer. ? This ? will ? stop ? the ? Ubuntu ? Kernel ? from ? continuing ? the ? boot ? process ? and ?
allow ? the ? developer ? to ? access ? the ? code ? on ? the ? MicroSD ? card. ? On ? the ? host ? computer ? terminal ? window, ?
type ? the ? following ? line: ?
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Ext2load ? mmc ? 0:1 ? 0x70800000 ? /unit_tests/obds.bin ?
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After ? the ? prompt ? returns: ?
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Loading ? file ? “/unit_tests/obds.bin” ? from ? mmc ? device ? 0:1 ? (xxa1) ?
XXXXXX ? bytes ? read ?
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Type: ?
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go ? 70800000 ?
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This ? will ? begin ? the ? OBDS ? diagnostic ? tool. ? The ? tool ? has ? 16 ? tests ? that ? it ? can ? perform. ? They ? are ? as ? follows: ?
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MAC ? Address ? confirmation ?
Debug ? UART ? Test ?
DDR3 ? Test ?
USBH1 ? Enumeration ? Test ? (Upper ? Host ? Port) ?
Secure ? Real ? Time ? Clock ? Test ?
Dialog ? PMIC ? ID ? Test ?
SATA ? Test ?
I2C ? Device ? Test ?
GPIO ? Test ?
Ethernet ? Test ?
I2S ? Audio ? Test ?
LCD ? Daughter ? Card ? Test ?
LVDS ? Display ? Test ?
VGA ? Video ? Test ?
HDMI ? Daughter ? Card ? Test ?
MMC/SD ? Card ? Test ?
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Freescale Semiconductor
Hardware User Guide for i.MX53 Quick Start Board,
Preliminary Rev 0.91
88
PUBI – Public Use Business Information ?
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