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whitecatboard / Lua-RTOS-ESP32

Lua RTOS for ESP32
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Bit module #72

Closed gjongenelen closed 7 years ago

gjongenelen commented 7 years ago

I'm trying to receive messages via 868MHz. The only problem I'm facing is the checksum of the package.

To verify the checksum, I need to use bitwise operators (BXOR) which can be found in the bit(32) module. As far as I can see this is not included at this moment.

Am I wrong or is there a possibility to compile with bit(32)-module?

jolivepetrus commented 7 years ago

No, no!!

Lua RTOS includes a Lua 5.3.4 interpreter. Since Lua 5.3 bitwise are supported directly by Lua without the bit32 module.

Please see:

https://www.lua.org/manual/5.3/manual.html#3.4.2

Lua code is nice Now!! For example you can do:

a = (b & 0xff00) >> 8

gjongenelen commented 7 years ago

Alright, got it working. It was a bit misleading because my IDE threw errors about bad characters.

Thnx