How to connect serial and TTL converter and The usb-boot pin

Xiangfu Liu xiangfu at
Fri Aug 7 01:24:15 EDT 2009

Hi Zhang
ZhangJieJing wrote:
> Hi xiangfu,
> I welded the two pin of USB-boot  together with persistence, is that OK?
what is the persistence mean? it that * 坚持, 持续?
you need release the two pin when you do normal boot.( boot from nand)*

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