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A recovery boot is a multi-step boot operation:
Using Cypress firmware update tools with generation 2 modules does require a recovery boot, in order to force enumeration as Cypress generic USB device driver.
On the other side, using Cypress firmware update tools with generation 3 modules does not require a recovery boot. This is possible because the original Cypress generic USB device driver (in case of a recovery boot) and the Trenz Electronic USB FX2 device driver ( in case of a regular boot) are both Cypress driver. Trenz Electronic USB FX2 driver derives from the original Cypress generic USB device driver.
EEPROM switch shall always be on during EEPROM programming.
The firmware update procedure is similar for both generations. The following table summarizes the main differences.
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Further information is shown in the following video play lists.
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