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Greetings, I have been working on a project integrating Lua onto a Freescale Kinetis microcontroller. I have successfully created a simple shell that allows me to enter Lua statements (modeled
after the shell shown in Programming in Lua). I have written “C” functions to manage a Lua table that is to be used by a Lua script to pass parameters to a “C” function where the parameters are sent out a proprietary CAN stack.
The Lua table is created from a “C” function before the first lua_pcall is called. Initially the table is as follows: messagePayload =
One of the functions that can be called from “C” adds dimmer/level pairs to the Dimmers table. For example, if the LuaScript called the “C” function with
a dimmer number of 1 and a level of 128, the table would be modified as follows: messagePayload =
Additional dimmer/level pairs can be added. My question is this; I would like to be able to modify the values of members of the table from Lua, but I do not want Lua to be able to change the members or structure of the table,
only the “C” functions are allowed to do this. Is this possible? Thanks, Rick |