Search found 112 matches

by wevets
Wed Aug 28, 2019 5:23 am
Forum: ESP-IDF
Topic: Is there an ESP32 ULP emulator/simulator?
Replies: 6
Views: 13496

Is there an ESP32 ULP emulator/simulator?

Subject line says it all?

wevets
by wevets
Sun Aug 25, 2019 4:10 pm
Forum: ESP-IDF
Topic: Two questions on the ULP
Replies: 3
Views: 4322

Re: Two questions on the ULP

Thank you very much. This is very helpful. I was able to decipher the portions of what I found at the link you provided that were in Chinese with the help of google/translate. Again, thanks.

Still hanging is the question of whether the MSB of a shift left goes into the overflow flag.

wevets.
by wevets
Sun Aug 25, 2019 6:18 am
Forum: ESP-IDF
Topic: Two questions on the ULP
Replies: 3
Views: 4322

Two questions on the ULP

I have a couple of questions on the ULP. I want to do some bit-banging to read an HX711, an ADC device that interfaces to load cells. I have to clock the bits off the HX711, so want to output a single clock bit to one GPIO and input from another. I've got this working on the main CPUs, but want to d...
by wevets
Sat Aug 24, 2019 8:44 pm
Forum: ESP-IDF
Topic: When I was knee-high to Kernigan and Ritchie.......
Replies: 4
Views: 4711

Re: When I was knee-high to Kernigan and Ritchie.......

Jason,

Thank you. Your link put me on exactly the right path. Do you know off the top if all tasks created in app_main() will continue to run if app_main() returns? This was implied but not explicitly stated at the link you steered me to.
by wevets
Sat Aug 24, 2019 4:25 pm
Forum: ESP-IDF
Topic: When I was knee-high to Kernigan and Ritchie.......
Replies: 4
Views: 4711

When I was knee-high to Kernigan and Ritchie.......

When I first started coding decades ago, every program in C began with main(). Having gotten back in after decades off and working in the ESP IDF, all applications begin with app_main(). Is there a main() that calls app_main(), and if not, what calls app_main()? What does this caller do? I've greppe...
by wevets
Fri Aug 16, 2019 5:50 am
Forum: ESP IoT Solution
Topic: Ultra Low Power (ULP) Infrequent Bluetooth (BLE) Connection
Replies: 2
Views: 6780

Re: Ultra Low Power (ULP) Infrequent Bluetooth (BLE) Connection

Did you ever get an answer to your question or figure out how to do it? I'm coming up against a similar requirement. In my case, read a load sensor and when a threshold is exceeded, wake up and report.
by wevets
Wed Aug 14, 2019 2:50 pm
Forum: Sample Code
Topic: Simple ULP Blink Example
Replies: 6
Views: 13262

Re: Simple ULP Blink Example

Hi, Deouss,

Is your example on git? Can you provide a pointer to it?
I also want to do a project with GPIO from the ULP and am having a bit of trouble climbing the learning curve.

Thanks.
by wevets
Sat Jul 27, 2019 11:22 pm
Forum: ESP-IDF
Topic: Out of curiosity...
Replies: 1
Views: 2278

Out of curiosity...

What does the "t" in"_t" at the end of so many defined date types, structs and other items stand for? Is it "template", "tantrum".....what?
by wevets
Thu Jul 25, 2019 8:47 pm
Forum: ESP-IDF
Topic: How to produce a log of a mintty session on win10
Replies: 0
Views: 1507

How to produce a log of a mintty session on win10

I making all the usual mistakes and running up all the usual blind alleys in developing in ESP-IDF on Win10.
How do I get mintty to produce a log of a session?
by wevets
Sat Jul 20, 2019 8:55 pm
Forum: ESP32 Arduino
Topic: ULP wakes ESP32
Replies: 4
Views: 6026

Re: ULP wakes ESP32

Thanks, boarchuz. This is a great start. I'm not quite ready to digest it yet, having just starting on getting the HX711 up and working. But I wrote my post asking for this info as I know that's the direction my project is headed. I'll be into this before too long. wevets (stevew backwards. Hey, all...