短接PB22時(shí)可以直接使用USB或者串口升級(jí)CH573，請(qǐng)問(wèn)一些這個(gè)內(nèi)置bootloader是固化在芯片獨(dú)立的flash空間嗎？

還是這個(gè)出廠內(nèi)置usb升級(jí)程序 就放在數(shù)據(jù)手冊(cè)上的 0x78000~0x7DFFF 系統(tǒng)引導(dǎo)程序存儲(chǔ)區(qū)Bootloader? ?24kB

我這邊自行開(kāi)發(fā)的 bootloader是否也可以放到這個(gè)24kB區(qū)域內(nèi)？會(huì)不會(huì)影響 內(nèi)置的出廠的usb升級(jí)功能

對(duì)是的，bootloader就在手冊(cè)中的這個(gè)區(qū)域，這個(gè)區(qū)域用戶是沒(méi)操作權(quán)限的。

Hello!

I am learning ch573/ch571 and I don't understand how to use it. So several questions:

1) How to force bootloader start?

2) Is it true that bootloader is preinstalled and user can't change it?

3) what is bootloader protocol? Are there any description of that protocol?

4) Are there some software for host pc running GNU/Linux that can neogotiate with bootloader and upload fw?

1. During power-on,PB22 pin is pulled down.

2. YES.

3. I'm sorry,we don't have an open protocol.

4. Email zhangj@wch.cn to obtain it.