I have an ESP01 connected to an FTDI232 board, the same as lots of tutorials recommend. I built a firmware at nodemcu-build.com and downloaded the integer and float files as well as esp_init_data_default.bin and have run the following command
esptool.py --port /dev/tty.usbserial-A50285BI write_flash 0x00000 nodemcu-master-10-modules-2016-11-09-21-20-59-float.bin 0x3fc000 esp_init_data_default.bin
It seems to transfer OK until it gets to the bit where it says Writing at 0x00080000. It always finished abruptly at the point with the message Exception: Failed to write to target Flash. For the integer file, this is always at 99% and for the float it is always at 97%
Does anyone have any idea what I'm doing wrong? I have tried changing the baud rate, the dio/qio setting, ect, to no avail.
Any suggestions welcome.
Thanks