I have the esp01 connected the serial port using a usb to ttl serial cable and also using the Arduino UNO as suggested in some tutorials. I can execute AT commands. But loading a sketch from Arduino IDE results in error messages show below. If anyone can help, it would be greatly appreciated. Note the error message:
serialport_receive_C0: F0 instead of C0
Build options changed, rebuilding all
Sketch uses 219,211 bytes (50%) of program storage space. Maximum is 434,160 bytes. Global variables use 31,416 bytes (38%) of dynamic memory, leaving 50,504 bytes for local variables. Maximum is 81,920 bytes.
/Users/syedtariq/Library/Arduino15/packages/esp8266/tools/esptool/0.4.8/esptool -vv -cd ck -cb 115200 -cp /dev/cu.usbmodem14221 -ca 0x00000 -cf /var/folders/hx/m49nxmvn0799w816ct3tgsjm0000gp/T/build10f6b721887f9efd16f05460daf22810.tmp/Blink.ino.bin
esptool v0.4.8 - (c) 2014 Ch. Klippel <[email protected]>
setting board to ck
setting baudrate from 115200 to 115200
setting port from /dev/tty.usbserial to /dev/cu.usbmodem14221
setting address from 0x00000000 to 0x00000000
espcomm_upload_file
espcomm_upload_mem
opening port /dev/cu.usbmodem14221 at 115200
tcgetattr
tcsetattr
serial open
opening bootloader
resetting board
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: F0 instead of C0
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: F0 instead of C0
resetting board
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: FF instead of C0
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: F0 instead of C0
resetting board
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: F0 instead of C0
trying to connect
setting character timeout 0
done
setting character timeout 1
done
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
serialport_receive_C0: F0 instead of C0
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
