Can't boot ESP8266 Wemos D1 R2

[horhan]

After compiling the "Hello world" example and uploading to the ESP8266 module.
I can't boot the ESP8266 module, I get an error:
Fatal exception (0):
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
all the time.
What is the reason of this error?

[dkinzer]

What is the reason of this error?

You haven't given much detail so it is difficult to speculate as to what when wrong. Offhand, I'd guess that the Wemos has more Flash memory than the default (512K) and you didn't specify the actual amount of Flash that the Wemos has.

Another possibility is that the Wemos is using a later version of the OS that isn't compatible with the original ESP8266 OS in some way.

[horhan]

I have set the right flash memory and right flash mode.
But I have still the same problems

Here the first part of the error codes:

Code: Select all

load 0x40100000, len 20760, room 16 
tail 8
chksum 0xc8
load 0x3ffe8000, len 848, room 0 
tail 0
chksum 0xa6
load 0x3ffe8358, len 176, room 8 
tail 8
chksum 0xfa
csum 0xfa
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0): 
epc1=0x40215430, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000

In a loop I get the error messages