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Update Flashing the Production PCB via USB serial port

Ray Jones 2019-01-10 09:01:35 +00:00
parent 6119e0c2c3
commit 41012f91a1
1 changed files with 2 additions and 2 deletions
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Flashing-the-Production-PCB-via-USB-serial-port.md

@ -11,7 +11,7 @@ Only the GND, power, Tx & Rx pins are connected on the production PCB. <BR>
**Note that the ESP32 is a 3.3V processor, so ensure the board is set to 3.3V mode.** **Note that the ESP32 is a 3.3V processor, so ensure the board is set to 3.3V mode.**
## Bootload Process ## Bootload Process
###Prepare the ESP for bootload. ### Prepare the ESP for bootload.
The ESP32 processor needs to be prepared for bootloading by following the following sequence: <BR> The ESP32 processor needs to be prepared for bootloading by following the following sequence: <BR>
1. Press and HOLD the EN button. 1. Press and HOLD the EN button.
1. Press and HOLD the BOOT button. 1. Press and HOLD the BOOT button.
@ -29,7 +29,7 @@ ESPtool will be unable to use the occupied serial port.
Ensure the serial debug session is closed before the upload takes place. Ensure the serial debug session is closed before the upload takes place.
The above sequence can be performed at any time prior to the upload. It does not need to happen at the moment the upload is being attempted. The ESP32 will simply wait in the bootloader until triggered by ESPtool. The above sequence can be performed at any time prior to the upload. It does not need to happen at the moment the upload is being attempted. The ESP32 will simply wait in the bootloader until triggered by ESPtool.
###Upload ### Upload
After completion of compilation of the code, the Arduino environment automatically launches ESPtool.exe to upload the generated binary file to the ESP32. After completion of compilation of the code, the Arduino environment automatically launches ESPtool.exe to upload the generated binary file to the ESP32.
An example (automatic) sequence follows: An example (automatic) sequence follows:
``` ```