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ESP32 sha_parallel_engine.h troubleshooting #841

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revoxhere opened this issue Aug 19, 2021 · 4 comments
Open

ESP32 sha_parallel_engine.h troubleshooting #841

revoxhere opened this issue Aug 19, 2021 · 4 comments
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@revoxhere
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@revoxhere
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@revoxhere revoxhere commented Aug 19, 2021 •
edited

If you have an outdated ESP32 core, you will probably see the message like this while compiling the code:

ResolveLibrary(sha/sha_parallel_engine.h)
  -> candidates: []ESP32_Code:59:85: fatal error: sha/sha_parallel_engine.h: No such file or directory
 #include "sha/sha_parallel_engine.h" // Include hardware accelerated hashing library
                  ^
compilation terminated.

To solve that, you can either:

Update your ESP32 core (recommended for the future)

Open Arduino IDE > File > Preferences > In the Additional boards URL field put:
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json

After doing that, update your ESP32 core: Arduino IDE > Tools > Board > Boards Manager > Type esp32 > Install version 2.0.0 or higher

You should now be able to compile the code without any problems.

Or use the older library version

Go to line 59 of the ESP32_Code.ino that says

#include "sha/sha_parallel_engine.h" // Include hardware accelerated hashing library

Comment it:

//#include "sha/sha_parallel_engine.h" // Include hardware accelerated hashing library

And enable the old library (uncomment line 58):

#include "hwcrypto/sha.h"

You should now be able to compile the code.
@revoxhere revoxhere self-assigned this Aug 19, 2021
@revoxhere revoxhere pinned this issue Aug 19, 2021
@gsrbr gsrbr mentioned this issue Aug 29, 2021
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@Raabitco
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@Raabitco Raabitco commented Aug 29, 2021

Thank you very much, fix the issue I have, God bless you, keep it up.

@rolandbreedveld
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@rolandbreedveld rolandbreedveld commented Oct 27, 2021

It looks like replacing the "parallel" for "hwcrypto" library, will make the ESP32 run at 1 core.
with an ESP8266 it generates 10.2 kH/s, the ESP32 generates 22.5 kH/s
ESP8266 is single core runs at 80 MHz, ESP32 dual-core at 160MHz.
So I expect an ESP32 to generate more than 40 kH/s

@rolandbreedveld
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@rolandbreedveld rolandbreedveld commented Nov 6, 2021

To solve this I installed a newer ESP32 core, version 2.0.1, it is using both core's now. HashRate grows from 22 to 35kH/s
and it compiles fine with: sha/sha_parallel_engine.h
in preferences I now use:
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json,
http://arduino.esp8266.com/stable/package_esp8266com_index.json
after this install or update to the latest ESP32 in board manager.

@FernandoMeiraRocha
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@FernandoMeiraRocha FernandoMeiraRocha commented Feb 12, 2022

How can I make ESP32 core run Duino only on one core, for the others to perform its normal functions in an IoT network?

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@rolandbreedveld @FernandoMeiraRocha @revoxhere @Raabitco