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USB Superspeed Peripherals

NaMo_1534561
Contributor II

Hello,

According to the FX3s data sheet:

(1) Errata's 2. USB enumeration failure in USBboot mode when FX3S is self-powered

Does this Errata have no effect on EEPROM boot?

(2) Errata's 8. USB data corruption when operating on hosts with poor link quality.

Errata says that it is USB 3.0, but can it be considered as having no effect when used with USB 2.0?

Best Regards,

Naoaki Morimoto

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3 Replies
alamandaa_16
Moderator
Moderator

Hi,

1.Does this Errata-2 have no effect on EEPROM boot?

No,USB enumeration failure in EEPROM mode when FX3S is self-powered.If no firmware in EEPROM that mode should be act as USB boot only.

2.Errata-8 says that it is USB 3.0, but can it be considered as having no effect when used with USB 2.0?

USB data not corrupted when the USB2.0 link signal quality is very poor.

Regards,

Anil Srinivas.

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NaMo_1534561
Contributor II

Hello Anil-san,

Thank you for reply.

The trigger condition for this errata is

・ FX3S is self-powerd

・ FX3S is started in USB boot mode

Does your point out that if the firmware is not written in the EEPROM, the FX3S will boot in USB boot mode and meet the above trigger conditions?

Best Regards,

Naoaki Morimoto

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NaMo_1534561
Contributor II

This case is closed until a new question comes.

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