ESP-PICO-D4 doesn't see internal flash

Gordon01
Posts: 3
Joined: Mon Aug 06, 2018 4:33 pm

ESP-PICO-D4 doesn't see internal flash

Postby Gordon01 » Mon Aug 06, 2018 4:43 pm

What is also strange: there is no voltage on pin 26.
I have MTDI pulled low by 10k resistor.
Programmer does see ESP32 but can't flash it.

Any ideas what could go wrong?

WiFive
Posts: 1911
Joined: Tue Dec 01, 2015 7:35 am

Re: ESP-PICO-D4 doesn't see internal flash

Postby WiFive » Mon Aug 06, 2018 7:46 pm

Do you have anything connected to gpio 6,7,8,11,16,17?

Gordon01
Posts: 3
Joined: Mon Aug 06, 2018 4:33 pm

Re: ESP-PICO-D4 doesn't see internal flash

Postby Gordon01 » Tue Aug 07, 2018 5:49 am

No, this pins are not connected
esp32.PNG
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Gordon01
Posts: 3
Joined: Mon Aug 06, 2018 4:33 pm

Re: ESP-PICO-D4 doesn't see internal flash

Postby Gordon01 » Tue Aug 07, 2018 6:33 am

Code: Select all

sergey@Ubuntu1:~/esp/esp-idf/examples/wifi/simple_wifi$ make -j16 flash monitor
Flashing binaries to serial port /dev/ttyUSB4 (app at offset 0x10000 )...
esptool.py v2.5.0
Serial port /dev/ttyUSB4
Connecting....
Chip is ESP32-PICO-D4 (revision 0)
Features: WiFi, BT, Dual Core, Embedded Flash
MAC: d8:a0:1d:40:f0:24
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Warning: Could not auto-detect Flash size (FlashID=0x0, SizeID=0x0), defaulting to 4MB
Compressed 24864 bytes to 14117...
Wrote 24864 bytes (14117 compressed) at 0x00001000 in 1.2 seconds (effective 159.5 kbit/s)...

A fatal error occurred: Timed out waiting for packet header
/home/sergey/esp/esp-idf/components/esptool_py/Makefile.projbuild:62: recipe for target 'flash' failed
make: *** [flash] Error 2
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