Search found 382 matches

by permal
Mon Jun 10, 2019 4:55 pm
Forum: General Discussion
Topic: Troubleshooting SSL_ERROR_BAD_MAC_ALERT
Replies: 2
Views: 943

Re: Troubleshooting SSL_ERROR_BAD_MAC_ALERT

Anyone?

I'm not getting anywhere so even crazy are ideas welcome ;)
by permal
Sun Jun 09, 2019 5:38 pm
Forum: General Discussion
Topic: Troubleshooting SSL_ERROR_BAD_MAC_ALERT
Replies: 2
Views: 943

Troubleshooting SSL_ERROR_BAD_MAC_ALERT

Now that I've finally found the issue with MPI acceleration causing my task to hang I can move on to my other issue; namely Message Authentication Code failure. The setup is the same as previously; code works fine on native Linux, but as soon as it is brought over to ESP32, I get this: mbedtls_ssl_h...
by permal
Sun Jun 09, 2019 11:39 am
Forum: General Discussion
Topic: mbedTLS on ESP32 vs Native Linux
Replies: 1
Views: 592

Re: mbedTLS on ESP32 vs Native Linux

After further digging, I've found that when MPI (bignum) hardware acceleration is enabled this hang occurs.

When MPI (bignum) acceleration is enabled, the hang also happens in the ESP-IDF https_server example.

Edit: GitHub issue: https://github.com/espressif/esp-idf/issues/3603
by permal
Sat Jun 08, 2019 6:47 pm
Forum: General Discussion
Topic: mbedTLS on ESP32 vs Native Linux
Replies: 1
Views: 592

mbedTLS on ESP32 vs Native Linux

I'm debugging two issues with mbedTLS that only happens when running the code on ESP32, i.e. only the mbedTLS adjusted for ESP has this issue. The first issue is that I get this error when connecting with curl/FireFox: mbedtls_ssl_handshake returned -29056: SSL - Verification of the message MAC fail...
by permal
Fri Jun 07, 2019 7:56 pm
Forum: ESP32 IDF
Topic: CAN License
Replies: 19
Views: 3083

Re: CAN License

snahmad75 wrote: So, the final verdict is CAN hardware module/driver is free for commercial use as well.
Personally I wouldn't draw that conclusion. Even Espressif says to obtain a license, as by the first post in this thread. Ask a lawyer.
by permal
Fri Jun 07, 2019 7:02 am
Forum: ESP32 IDF
Topic: CAN License
Replies: 19
Views: 3083

Re: CAN License

Note that the ESP32 implements the "classic" CAN, not CAN FD. Still, the document clearly states a license is required for both of them, does it not? Important Notice The CAN Protocol and CAN FD Protocol are developed by the Robert Bosch GmbH and protected by intellectual property rights. The CAN P...
by permal
Thu Jun 06, 2019 7:18 am
Forum: ESP32 IDF
Topic: CAN License
Replies: 19
Views: 3083

Re: CAN License

I am not a lawyer, but http://www.bosch-semiconductors.com/ip-modules/can-ip-modules/can-protocol/ states the following: The CAN FD Protocol is developed by Robert Bosch GmbH and is patented. In addition to the CAN IP modules offered by Bosch, a CAN FD Protocol License is required. The CAN FD Protoc...
by permal
Sun Jun 02, 2019 8:53 am
Forum: ESP32 IDF
Topic: Compatibility between "normal CMake" and ESP-IDF
Replies: 80
Views: 22834

Re: Compatibility between "normal CMake" and ESP-IDF

Ok, I've reproduced the problem using a minimal project based off the official IDF-examples and filed an issue for it.
by permal
Sat Jun 01, 2019 11:12 am
Forum: ESP32 IDF
Topic: Compatibility between "normal CMake" and ESP-IDF
Replies: 80
Views: 22834

Re: Compatibility between "normal CMake" and ESP-IDF

idf_build_component, that seems to work. However, I'm now stuck in a situation that I think we were in when the CMake build system first was introduced - the final executable/elf isn't linked against the pre-built libraries shipped with IDF (such as libnet80211.a). I can't remember what was done abo...

Go to advanced search