Search found 24 matches

by ginodecock
Wed Nov 13, 2019 5:52 pm
Forum: ESP32 IDF
Topic: Large ULP project build problem IDF V4.0 beta1
Replies: 4
Views: 780

Re: Large ULP project build problem IDF V4.0 beta1

Hi,

Yes the esp32ulp toolchain was configured twice in PATH.

I builds now using CMake.

Thanks
by ginodecock
Tue Nov 12, 2019 5:32 pm
Forum: ESP32 IDF
Topic: Large ULP project build problem IDF V4.0 beta1
Replies: 4
Views: 780

Re: Large ULP project build problem IDF V4.0 beta1

When using the cmake idf v4.0 the ulp toolchain is embedded. If you have already set up ESP-IDF with CMake build system according to the Getting Started Guide, then the ULP toolchain is already installed. Building using legacy GNU make build is older and works. Any idea how to use multiple assembler...
by ginodecock
Mon Nov 11, 2019 1:48 pm
Forum: ESP32 IDF
Topic: Large ULP project build problem IDF V4.0 beta1
Replies: 4
Views: 780

Large ULP project build problem IDF V4.0 beta1

Hi, I have a project that compiles fine under IDF V3.3. When building under IDF V4.0 beta 1 I got the following error: e/GitHub/esp-idf-v4.0-beta1/components/unity/include -IY:/VM/Share/GitHub/esp-idf-v4.0-beta1/components/ulp/cmake/-IY:/VM/Share/GitHub/esp-idf-v4.0-beta1/components/unity/unity/src ...
by ginodecock
Sun Nov 10, 2019 5:16 pm
Forum: ESP32 IDF
Topic: Error CMake building ULP projects in IDF V4.0 beta 2
Replies: 0
Views: 383

Error CMake building ULP projects in IDF V4.0 beta 2

Hi, Projects that I can build in IDF V4.0 beta 1 I cannot build in IDF V4.0 beta 2. With several projects I get the following error: n/include -IY:/VM/eclipse-workspace/PIR_mailbox/build/config -IY:/VM/Share/GitHub/esp-idf-v4.0-beta2/components/json/cJSON -IY:/VM/eclipse-workspace/PIR_mailbox/build/...
by ginodecock
Sat Jul 21, 2018 11:48 am
Forum: General Discussion
Topic: Fundamental questions about ULP and wake up
Replies: 1
Views: 1128

Re: Fundamental questions about ULP and wake up

Hi,

It is my understanding that the ulp runs independently of the main cpu.

However I found that an ulp wakeup can interfere with the deepsleep wakeup timer.
by ginodecock
Mon Jul 16, 2018 8:37 pm
Forum: ESP32 IDF
Topic: Deepsleep is counting up
Replies: 0
Views: 720

Deepsleep is counting up

Hi, I am combining ULP wakeup and deepsleep timer wakeup. When the RTC memory is full the ULP CPU triggers a wakeup and the RTC memory is written to flash. When it's time to offload the data the main CPU wil be triggerd by the deepsleep timer wakeup. This way of working seems to work ok. However som...
by ginodecock
Tue Jul 10, 2018 10:46 am
Forum: ESP32 IDF
Topic: cjson error handling
Replies: 3
Views: 2220

Re: cjson error handling

Hi,

@ESP_igrr your guess is right.
checking if the returns is NULL before dereferencing makes the json parsing robust.
by ginodecock
Mon Jul 09, 2018 6:31 pm
Forum: ESP32 IDF
Topic: cjson error handling
Replies: 3
Views: 2220

cjson error handling

Hi, I am using the buildin cjson component to parse json data. When the data is not well formed the esp32 crashes: Guru Meditation Error: Core 0 panic'ed (LoadProhibited) . Exception was unhandled. Register dump: PC : 0x4010ad64 PS : 0x00060e30 A0 : 0x8013e2fd A1 : 0x3fff0510 0x4010ad64: cc_callback...
by ginodecock
Sat Jul 07, 2018 7:08 pm
Forum: ESP32 IDF
Topic: Rf based positioning using phase differences
Replies: 5
Views: 2262

Re: Rf based positioning using phase differences

It seems that the ESP32 can not transmit unmodulated carriers and is therefore not supported for phase-based ranging. :cry:
by ginodecock
Sun Jun 24, 2018 7:26 pm
Forum: ESP32 IDF
Topic: Rf based positioning using phase differences
Replies: 5
Views: 2262

Re: Rf based positioning using phase differences

I don't see anything in this documentation that gives access to i/q signals.

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