Search found 6 matches

by jaybnair
Tue Jun 27, 2017 6:47 am
Forum: ESP-IDF
Topic: ESP32 possibly crashes ; python reports error
Replies: 2
Views: 11502

Re: ESP32 possibly crashes ; python reports error

Thank you very much. That was indeed a great help. Following your recommendation, I saw the host (linux m/c) log and saw that USB was getting disconnected and re-attached. And based on your cue on current draw, I connected the USB hub to a powersupply ( It was always connected, but the *blasted* swi...
by jaybnair
Tue Jun 27, 2017 4:25 am
Forum: ESP-IDF
Topic: ESP32 possibly crashes ; python reports error
Replies: 2
Views: 11502

ESP32 possibly crashes ; python reports error

when I do make monitor, after some logs from my program, I am getting the following crash log. May be ESP32 crashed or has become unresponsive. Any idea what might have happened and if there is any crash, how to debug it? This is with my linux based ESP32 tool chain. --- exit --- Exception in thread...
by jaybnair
Tue Jun 27, 2017 4:17 am
Forum: ESP-IDF
Topic: ESP32 Flashing app alone
Replies: 5
Views: 8884

Re: ESP32 Flashing app alone

Thank you very much..
Increasing the baud rate helped ..
by jaybnair
Sat Jun 24, 2017 7:57 am
Forum: ESP-IDF
Topic: ESP SPI transfer Max Size
Replies: 2
Views: 7473

ESP SPI transfer Max Size

Hi,

I have a need to transfer 4096 bytes over SPI in one transfer.
However, I see that ESP32 SPI transfer accepts only a max of 2048 bytes. Anything more than that is discarded.
Any idea where this limitation comes from or any input on how to increase the limit atleast to 4096 bytes?

Thanks
Jay
by jaybnair
Sat Jun 24, 2017 7:53 am
Forum: ESP-IDF
Topic: ESP32 Flashing app alone
Replies: 5
Views: 8884

Re: ESP32 Flashing app alone

It takes the same time in both cases( make flash and make app-flash) 1.: make app-flash Flashing app to serial port /dev/ttyUSB0, offset 0x10000... esptool.py v2.0-beta1 ......................... Auto-detected Flash size: 4MB Compressed 1139632 bytes to 578369... Wrote 1139632 bytes (578369 compress...
by jaybnair
Fri Jun 23, 2017 8:27 am
Forum: ESP-IDF
Topic: ESP32 Flashing app alone
Replies: 5
Views: 8884

ESP32 Flashing app alone

Hi,

The ESP32 web page (https://esp-idf.readthedocs.io/en/v2.0/ ... oject.html) says that we can flash app alone using make app-flash. But but when I do that it flashes the entire image every time.
May I know if there is any other mechanism to flash the app alone?

Thanks
jay