- Thu Oct 27, 2016 2:19 pm
#57235
My reading of the documentation implied to me it doesn't, and could be used via a normal RX/TX only UART connection, however, I get "Failed to connect to ESP8266" no matter what I use it for, and am totally new to the device.
The context is that I have the ESP8266 (Sunfounder 8 pin breakout) connected to a headless Raspberry Pi, and I wanted to be able to use the ESP in normal mode on the UART and flash it remotely without rearranging anything. To that end I have CH_PD and GPIO0 connected to GPIOs on the Pi.
When the ESP is reset with GPIO0 high, I can see the boot log with minterm.py -b 74880, then reconnect at 115200 and test AT commands as described on the Sunfounder page. I can also find an AI_THINKER ESSID.
When I set GPIO0 low and reset, nothing happens. I was presuming at this point I should be able to use esptool.py to flash boot, but I get "Failure to connect". I compiled the firmware using the open SDK and toolchain on another machine, but I do not think it is the problem as all esptool.py commands fail the same way, e.g.
And so on. The python serial library obviously works well enough for miniterm.py to using the same port.
The context is that I have the ESP8266 (Sunfounder 8 pin breakout) connected to a headless Raspberry Pi, and I wanted to be able to use the ESP in normal mode on the UART and flash it remotely without rearranging anything. To that end I have CH_PD and GPIO0 connected to GPIOs on the Pi.
When the ESP is reset with GPIO0 high, I can see the boot log with minterm.py -b 74880, then reconnect at 115200 and test AT commands as described on the Sunfounder page. I can also find an AI_THINKER ESSID.
When I set GPIO0 low and reset, nothing happens. I was presuming at this point I should be able to use esptool.py to flash boot, but I get "Failure to connect". I compiled the firmware using the open SDK and toolchain on another machine, but I do not think it is the problem as all esptool.py commands fail the same way, e.g.
Code: Select all
esptool.py -p /dev/ttyAMA0 read_macAnd so on. The python serial library obviously works well enough for miniterm.py to using the same port.
