ESP8266 Community Forum

- Tue Jan 17, 2017 8:49 am #61129 Hi!

I'm programming a ESP-01 1M module via the Arduino IDE (1.6.12 and esp8266 2.3.0) with default settings of the Generic ESP8622 Module and selected as flash size 1M (512K SPIFFS).
After about 6 times uploading a sketch the chip crashes and now each time if I execute a program, also after reflashing it (flashing still seems to work), I get a continues output on the serial monitor like this:

Code: Select all>>>stack>>>
3fffeef0:  40105381 4010537e 4b895d03 f6bb84f2 
3fffef00:  400005e1 00812818 91905317 14f2c144 
3fffef10:  4021c778 00000033 00000020 a6bd04ac 
3fffef20:  40105387 04000102 00000000 00000001 
3fffef30:  fbf8ffff 04000002 3feffe00 00000100 
3fffef40:  0000001e 00000018 04000102 40105368 
.....
3fffff80:  ffffffff ffffffff ffffffff ffffffff 
3fffff90:  ffffffff 093d3d14 935b5579 fe921118 
3fffffa0:  200201e9 20f6729f ffffff00 55aa55aa 
<<<stack<<<

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld

Exception (0):
epc1=0x4021c778 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: sys
sp: 3ffff740 end: 3fffffb0 offset: 01a0

>>>stack>>>
3ffff8e0:  40105381 4010537e 2e88feb3 6b493976 


This is my second ESP-01 module because the first one had the same problem after a while; I guess I'm doing something wrong..??

To flash the module I'm using a CP2102 based USB to TTL converter which has a RTS and DTR connection:


Can someone tell me what I'm doing wrong or what the problem is?
Can I fix (the memory of) my ESP modules?

Thank you in advance!!

Stefan