Thanks @ESP_igrr!
Works great from both main program (using rtc_gpio_hold_en / dis) and from ULP (using individual registers and bits).
EDIT:
A short description how to use hold enable / disable functionality together with an ULP program is available under https://github.com/krzychb/ulp-loop
Search found 398 matches
- Fri May 26, 2017 6:23 am
- Forum: ESP-IDF
- Topic: [Solved] Can RTC IO output state be retained in hibernation mode?
- Replies: 4
- Views: 10163
- Thu May 25, 2017 8:42 pm
- Forum: ESP-IDF
- Topic: [Solved] Can RTC IO output state be retained in hibernation mode?
- Replies: 4
- Views: 10163
[Solved] Can RTC IO output state be retained in hibernation mode?
Hey everybody, According to ESP32 Datasheet V1.3 on page 22, in hibernation mode "some RTC GPIOs are active". I understand they can be used as "ext0" or "ext1" wakeup sources after configuring them as inputs. What if they are configured as outputs? Can they retain output state (high or low) that has...
- Wed May 24, 2017 8:28 am
- Forum: General Discussion
- Topic: Setting up Development Toolchain for ESP32
- Replies: 17
- Views: 23124
Re: Setting up Development Toolchain for ESP32
I don`t know...maybe I should start installation at the beginning? Remove all and then start again? Yes, this is advisable to start from scratch but following step by step http://esp-idf.readthedocs.io/en/latest/get-started/index.html. If you diverge from this procedure it takes extra time and effo...
- Tue May 23, 2017 7:40 pm
- Forum: General Discussion
- Topic: HSPI and VSPI, meaning thereof?
- Replies: 19
- Views: 98135
- Thu Apr 20, 2017 12:08 pm
- Forum: General Discussion
- Topic: Hi , is there any sample code for uart in esp32..??
- Replies: 5
- Views: 18515
- Wed Apr 19, 2017 7:49 am
- Forum: General Discussion
- Topic: Hi , can anyone say , is there any example code for how to set the duty cycle and pwm frequency in esp32..??
- Replies: 3
- Views: 6039
- Fri Apr 07, 2017 4:33 am
- Forum: General Discussion
- Topic: Cannot Download to ESP-WROVER-KIT
- Replies: 8
- Views: 13632
Re: Cannot Download to ESP-WROVER-KIT
@WiFiveDid you try ttyUSB1
Snap
Using /dev/ttyUSB1 resolves the issue.
(ESP-WROVER-KIT shows up under two USB ports - /dev/ttyUSB0 and /dev/ttyUSB1.)
This should be added to the "getting started" guide.
Thank you for a hand!
- Thu Apr 06, 2017 5:03 pm
- Forum: General Discussion
- Topic: Cannot Download to ESP-WROVER-KIT
- Replies: 8
- Views: 13632
Re: Cannot Download to ESP-WROVER-KIT
I see the following issue with ESP-WROVER-KIT black on Ubuntu 16.04 LTS with latest master from GitHub. Flashing binaries to serial port /dev/ttyUSB0 (app at offset 0x10000)... esptool.py v2.0-beta2 Connecting........_____....._____....._____....._____....._____....._____....._____....._____.....___...
- Wed Apr 05, 2017 8:53 am
- Forum: General Discussion
- Topic: [solved]: freertos: c-example blink and cpp-example blink - invalid conversion error in cpp
- Replies: 4
- Views: 19395
Re: [solved]: freertos: c-example blink and cpp-example blink - invalid conversion error in cpp
Hi @DL88AI88,
I think this is a nice example to help people get started with ESP32 and C++.
Please consider creating a pull request in esp-idf to add cppblink.cpp to examples/get-started.
I think this is a nice example to help people get started with ESP32 and C++.
Please consider creating a pull request in esp-idf to add cppblink.cpp to examples/get-started.
- Wed Apr 05, 2017 7:48 am
- Forum: General Discussion
- Topic: Hi , can anyone say , how to configure the digital input and output in esp32 and how to read the digital input..?
- Replies: 4
- Views: 10562
Re: Hi , can anyone say , how to configure the digital input and output in esp32 and how to read the digital input..?
Many would prefer to avoid arduino IDE. @dotthree, Instead of Arduino IDE you can use esp-idf and program in plain C and/or C++. I personally would really love to see a comprehensive GPIO example which shows multiple pins set up and working simultaneously. Esp-idf provides example with four GIPO pi...