ESP32 flashing issue

[sharbt]

Hi ,
I am facing issue when used on ESP32 on both master and checkin where ESP32 was "just" supported.

Commit Used:

Commits on Jan 25, 2016
Update readme to mention ESP32
edb9136

Setup:
Trying as if using esptool.py , connect Wroom-23 to Linux VM , connection seems to be fine with no issue.

Command:
sudo ./esptool -cp /dev/ttyUSB0 -cd ck -cc esp32 -ca 0x10000 -cf esp-at.bin -v 4

Output:
Seems some issue during (FLASH_DOWNLOAD_BEGIN) , no response seen from module and exiting.
Let me know if customization required or if it is known issue (could not find in issue section).
I assume this is C port of esptool.py and has equivalent features of same.

More info & logs:

https://www.esp32.com/viewtopic.php?f=13&t=2165&p=10449#p10449