ESP8266 Community Forum

- Fri Apr 03, 2015 2:01 pm #13395

Thanks for your reply but blank512k.bin wich seems to be a full erase doesn't work and I have already external 3.3v reg power supply, just ground connected together with CP1202 usb.

i have that problem and i solved with changing my powersupply. i changed ams1117 3,3v with new ams1117 3,3v so you can try. yes blank512k.bin

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- Fri Apr 03, 2015 3:26 pm #13404 Changed ams1117 3.3v and power it with 5V 1A but same problem...

I try to read the flash ID and esptool.py return some info so I think the flash is OK
---
python esptool.py --port com6 flash_id
Connecting...
Manufacturer: c8
Device: 4013
---


So after flashing I dump flash content
---
python esptool.py --port com6 read_flash 0x000000 0x7f000 dump.bin
Connecting...
Please wait...
---

The MD5 sums of 'nodemcu_512k_20141212.bin' and 'dump.bin' are exactly the same, so I can conclude that the SPI flash is good.



I'm stuck...

- Sat Apr 04, 2015 6:05 am #13438 Hi,

Today I flashed an ESP-06 module with 'esp8266_flasher.exe' and 'nodemcu_512k_20141212.bin'
Everything works well and I can see the LUA interpreter

---
NodeMcu 0.9.2 build 20141212 powered by Lua 5.1.4
lua: cannot open init.lua
>
---

I don't understand why my other module (an ESP-07), subject of this post refuse to work...

- Thu Apr 09, 2015 1:16 am #13933 Any ideas please ?