Rainbow-electronics AT89C5132 Manuale Utente Scaricare il pdf (Pagina 2)

AT89C5132

4253A–USB–08/03

Active USB Bootloader Errata List

• No Active Errata

USB Bootloader Errata History

USB Bootloader Errata Description

1. Boot Process - Marginal SBV Value

When Bootloader is called from user’s application with SBV = F0h, the bootloader is never executed and execution

enters an infinite loop.

Workaround

Always set SBV value to FFh instead of F0h.

Version Number Errata List

V1.6.0 1

V1.6.2 None

1 2 3

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