Search found 1320 matches

by kolban
Thu Apr 19, 2018 12:25 am
Forum: ESP32 SDK
Topic: use (swap) static IRAM for static DRAM
Replies: 3
Views: 62

Re: use (swap) static IRAM for static DRAM

If we look at table 3 in the ESP32 Technical Reference Manual we see that there appears to be 128K pre-allocated to instruction ram (IRAM) between address range 0x4008 0000 and 0x4009 FFFF ... known as SRAM 0. If I were to guess, I'd say that this 128K is fixed for the purpose of instruction RAM wit...
by kolban
Thu Apr 19, 2018 12:15 am
Forum: ESP32 SDK
Topic: Scan BLE devices and send data via http post request
Replies: 1
Views: 33

Re: Scan BLE devices and send data via http post request

Howdy and welcome to the community. It feels like this is quite a specialized task so you might not get a response on the complete solution. However, if we break it into parts it may be easier. The first is getting the BLE scan data you are looking for. There are a number of API libraries available ...
by kolban
Thu Apr 19, 2018 12:08 am
Forum: General Discussion
Topic: How to reinitialize BLE?
Replies: 1
Views: 53

Re: How to reinitialize BLE?

I may be completely off target here ... but a thought strikes me. Some of those commands may be asynchronous meaning that when you request something to be done, it is not immediately performed before return but instead you are notified by an event by callback when it is complete. Could it be that yo...
by kolban
Wed Apr 18, 2018 3:40 am
Forum: General Discussion
Topic: I need an IDE for my development
Replies: 12
Views: 683

Re: I need an IDE for my development

My experience has been very mixed. Prior to a859564.zip I couldn't get very far at all. Since then I've made more progress but have taken steps backwards too. My gut is telling me that there are multiple state machines and timing considerations at play here and without understanding all of those, we...
by kolban
Wed Apr 18, 2018 1:42 am
Forum: General Discussion
Topic: ESP-32 mesh function
Replies: 16
Views: 7197

Re: ESP-32 mesh function

I see there are released APIs for Mesh support and wish to study these and write up some guides. Reading the API references is good but I'm wondering if there is an architectural overview? I'd like to understand and appreciate the high level theory of operation before experimenting with the APIs.
by kolban
Tue Apr 17, 2018 1:52 pm
Forum: ESP32 SDK
Topic: Assembler for Mac
Replies: 1
Views: 48

Re: Assembler for Mac

See the following:

http://esp-idf.readthedocs.io/en/latest ... setup.html

This seems to say that you can download and install the toolchain for the ESP32 on macOS. This gives you the GNU compiler suite which includes an assembler.
by kolban
Tue Apr 17, 2018 1:28 am
Forum: ESP32 SDK
Topic: Precompile ESP32 core
Replies: 3
Views: 85

Re: Precompile ESP32 core

For a project I'm working on at the moment, I am doing something similar. I have the following: /build/esp-idf <--- The ESP-IDF /build/esp-idf-template <--- A normal template app that I run "make" within that results in a hello world app. This owns "sdkconfig" /build/source <--- ...
by kolban
Mon Apr 16, 2018 10:21 pm
Forum: ESP32 Arduino
Topic: scanned BLEAdvertisedDevice to BLEBeacon
Replies: 8
Views: 293

Re: scanned BLEAdvertisedDevice to BLEBeacon

Apparently the user is working in Arduino land and has explicitly chosen not to use threading/tasks. However, your thinking appears solid to my eyes.
by kolban
Mon Apr 16, 2018 10:18 pm
Forum: ESP32 SDK
Topic: handling GPIO interrupts
Replies: 15
Views: 416

Re: handling GPIO interrupts

I've got this horrible feeling we are both over thinking it :-) Lets imagine that an event hits the queue when the button is down ... we should also imagine that there is a debounce time ... lets call it for the sake of a number 500ms during which we might get multiple bounces. I'm thinking ... whil...
by kolban
Mon Apr 16, 2018 1:56 pm
Forum: ESP32 Arduino
Topic: scanned BLEAdvertisedDevice to BLEBeacon
Replies: 8
Views: 293

Re: scanned BLEAdvertisedDevice to BLEBeacon

@chegewara I think what the original poster wants is to make a call to BLEScan::start(0) and have that call return immediately while continuing to scan in the background. My understanding is that if we call BLEScan::start() today, it will block until the scan interval expires or otherwise the scanni...

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