ESP8266 Community Forum

- Wed Feb 06, 2019 11:22 am #80461 Hi, I'm new here.
I've made my own ESP8266-12e development board to be used with the Arduino IDE, but I can't manage to upload anything to the board. I am using a FT232RL for UART communication (https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf).
I put the board into programming mode, my computer detects a new device as usbserial-A90J7PTX (I am using a Mac by the way) but when I try to upload the program via Arduino IDE, I get the error message: espcomm_upload_mem failed

Has anyone tried this before?

- Thu Feb 07, 2019 3:25 am #80468

I've made my own ESP8266-12e development board

We need a schematic (or at least a description) of your board to say something sensible.

How is the board putting the ESP into programming mode?
Does is actually have automatic flash- and reset-circuitry?
Can you put the board into programming mode manually?

ESPModes.png

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Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Sun Feb 10, 2019 10:25 am #80511

We need a schematic (or at least a description) of your board to say something sensible.

Here is the schematic:

sch2.png

How is the board putting the ESP into programming mode?
Does is actually have automatic flash- and reset-circuitry?
Can you put the board into programming mode manually?

I use a switch for the GPIO0 and keep the GPIO15 at GND and GPIO2 at VCC. To reset I unplug and plug the power. To put the ESP into programming mode I simply press the switch at the GPIO0 and power the board.

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- Tue Feb 12, 2019 3:36 pm #80540

We need a schematic (or at least a description) of your board to say something sensible.

Here is my schematic:

sch2.png

How is the board putting the ESP into programming mode?
Does is actually have automatic flash- and reset-circuitry?
Can you put the board into programming mode manually?

I put the board into programming mode by pushing the button on GPIO0 and connecting the board to power via USB.

You do not have the required permissions to view the files attached to this post.