Ivan Grokhotkov

When OS does this happen on?

I came to the same conclusion. I'm able to disable DTR/RTS manipulation on OS X, but on Linux the driver handles things a bit differently.

Does it happen with esptool 0.4.8 or 0.4.7? Initially 2.1.0 version of esp8266 core was distributed with 0.4.7, but a bug in esptool was fixed later on, now it ships...

I think adding an argument and a corresponding arg_parse handler would be a good option. At some point i was thinking about adding support for "scripts" which define how reset...

I think esptool doesn't (shouldn't) care what kind of binary (compiled with Arduino of IoT SDK) it flashes. If you are using `-cd none`, it will not manipulate DTR and...

Failure at FLASH_DOWNLOAD_BEGIN stage usually has to do with flash erase time exceeding the 10 second timeout. This happens when you try to upload a large (3M) spiffs binary. If...

Thanks, should be fixed by 36e2fd9.

Whoops sorry, looks like I was testing an old version before commiting. Will fix.

Based on some feedback from windows users, this seems to be fixed now. @CHERTS can you verify? Here's a win32 binary: http://download.igrr.me/esptool.exe.

@JeroenBeemster could you please try the latest build at: https://ci.appveyor.com/project/igrr/esptool-ck/build/artifacts this time with -vv argument, and if it doesn't work, post the full output here?