Search found 2344 matches
- Fri Nov 08, 2019 11:26 am
- Forum: ESP-IDF
- Topic: Non-LWIP Compilation
- Replies: 6
- Views: 7041
Re: Non-LWIP Compilation
Hi cnlohr, 1: Re: Dependency on lwip: I still cannot seem to figure out how to build smartconfig_ack and components/mbedtls/port/net_sockets, or rather build without these components. My stack does not provided BSD-like functionality. What I mean is: build with all of the normal IDF components, incl...
- Fri Nov 08, 2019 7:59 am
- Forum: ESP-IDF
- Topic: Non-LWIP Compilation
- Replies: 6
- Views: 7041
Re: Non-LWIP Compilation
Hi cnlohr, Will try to give a more complete answer later, but if there are no symbol name conflicts between lwip and your new TCP/IP library then it may be possible to compile lwip but not link it. The only coupling between lwip and the wifi libraries should be via the tcpip_adapter component. If yo...
- Fri Nov 08, 2019 7:21 am
- Forum: ESP-IDF
- Topic: Allocate 2 buffers in specific address at different memory banks
- Replies: 38
- Views: 31312
Re: Allocate 2 buffers in specific address at different memory banks
In "esp32_technical_reference_manual_en", page 116 this is an explanation and a "figure 13: Linked List Structure". This structure(figure 13) stay all in hardware ? How many structure(figure 13) i2s0 have in hardware ? This is a DMA descriptor. They live in internal RAM (limited only by the amount ...
- Thu Nov 07, 2019 12:55 pm
- Forum: General Discussion
- Topic: How is it possible that the ESP32 is so cheap?
- Replies: 6
- Views: 18225
- Thu Nov 07, 2019 10:32 am
- Forum: General Discussion
- Topic: How is it possible that the ESP32 is so cheap?
- Replies: 6
- Views: 18225
Re: How is it possible that the ESP32 is so cheap?
Folks, discussing conspiracy theories is entirely off-topic for this forum and if necessary posts in this thread will be moderated. Even if the whole wireless functionality would be left out we’d still have a dual core 240mhz 32bit cpu that can run complex applications for a dollar (soc). I couldn’t...
- Thu Nov 07, 2019 7:34 am
- Forum: ESP-IDF
- Topic: ESP32 Signed App Verification
- Replies: 5
- Views: 6797
Re: ESP32 Signed App Verification
Hi Julien,
Yes, please take a look here: https://docs.espressif.com/projects/esp ... sions.html
Angus
- Thu Nov 07, 2019 3:36 am
- Forum: ESP-IDF
- Topic: Missing function definitions in IDF (and information in datasheet) ?
- Replies: 5
- Views: 5131
Re: Missing function definitions in IDF (and information in datasheet) ?
Ah I see. This is what I was thinking but wasn't sure given that I couldn't find it specified anywhere. A follow up question I guess would be what's the reason for this? I can't think of any good reasons. Some background information can be found in this GitHub issue: https://github.com/espressif/es...
- Thu Nov 07, 2019 2:56 am
- Forum: ESP-IDF
- Topic: [closed] moving to cmake/IDF V4.0 is causing problems
- Replies: 13
- Views: 9573
Re: moving to cmake/IDF V4.0 is causing problems
Thanks for the additional details. It's hard to tell what this could be without knowing what your project does. Can you do some differential testing by disabling parts of your app's startup code and seeing if the problem goes away? Or use a debugger or some additional printf statements (and flushing...
- Thu Nov 07, 2019 2:53 am
- Forum: General Discussion
- Topic: rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
- Replies: 2
- Views: 15626
Re: rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
By default, ESP-IDF does not enable C++ exceptions in the compiler. So if C++ code throws an exception, libstdc++ will immediately call abort(). That's what the stack trace is showing. In ESP-IDF you can enable C++ exceptions in the project config and recompile the ESP-IDF project (you may need to a...
- Thu Nov 07, 2019 2:50 am
- Forum: General Discussion
- Topic: Why does this endup in DRAM instead of flash?
- Replies: 1
- Views: 2336
Re: Why does this endup in DRAM instead of flash?
Hi greengnu, What is the library named? Could you please post the .map file from your project? This should give some clues about which linker rules, if any, were applied when linking these symbols. Also, if you dump the unlinked .a file contents then what sections do these symbols belong to before t...