Hi,
Having problems getting this to program up without error. Can anyone advise?
I'm using an FDTI board, the blink example , and the upload seems to work but comes up with a CRC error and no flashing LED.
Board type generic "8266 module" Arduino 1.8
This is the error:
esptool.py v3.0
Serial port COM9
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: 48:3f:da:6c:eb:68
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Warning: Could not auto-detect Flash size (FlashID=0xa2a2a2, SizeID=0xa2), defaulting to 4MB
Flash params set to 0x0340
Compressed 265616 bytes to 195728...
Writing at 0x00000000... (8 %)
Writing at 0x00004000... (16 %)
Writing at 0x00008000... (25 %)
Writing at 0x0000c000... (33 %)
Writing at 0x00010000... (41 %)
Writing at 0x00014000... (50 %)
Writing at 0x00018000... (58 %)
Writing at 0x0001c000... (66 %)
Writing at 0x00020000... (75 %)
Writing at 0x00024000... (83 %)
Writing at 0x00028000... (91 %)
Writing at 0x0002c000... (100 %)
Wrote 265616 bytes (195728 compressed) at 0x00000000 in 17.6 seconds (effective 120.8 kbit/s)...
File md5: fed8516c4bff08caf0dc4dd8f922e616
Flash md5: 9b7b73121de79a5f2bb7fc8cf130cfc4
MD5 of 0xFF is c704b076e4cb648170fddd7872d50a4a
A fatal esptool.py error occurred: MD5 of file does not match data in flash!