mirror of
https://github.com/elua/elua.git
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More work on the configurator
- started on the docs - added the 'autoenable' attribute to some components - moved LM3S ADC-specific configuration data to the LM3S backend
This commit is contained in:
Bogdan Marinescu
parent
958f357257
commit
e5b64a46fe
@ -160,7 +160,7 @@ print( utils.col_blue( "[CONFIG] Found board description file at " .. bfname ) )
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local bdata, err = bconf.compile_board( bfname, comp.board )
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if not bdata then
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print( utils.col_red( "[CONFIG] Error compiling board description file: " .. err ) )
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do return end
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return
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end
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-- Check if the file has changed. If not, do not rewrite it. This keeps the compilation time sane.
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local bhname = utils.concat_path( { board_base_dir, "headers", "board_" .. comp.board:lower() .. ".h" } )
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@ -66,6 +66,8 @@ function init()
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}
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-- Shell
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components.shell = { macro = 'BUILD_SHELL' }
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-- Advanced shell
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components.advanced_shell = { macro = 'BUILD_ADVANCED_SHELL', autoenable = 'shell' }
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-- Term
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components.term = {
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macro = 'BUILD_TERM',
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@ -155,9 +157,7 @@ function init()
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components.adc = {
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macro = 'BUILD_ADC',
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attrs = {
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buf_size = at.make_optional( at.int_log2_attr( 'ADC_BUF_SIZE' ) ),
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first_timer = at.make_optional( at.int_attr( 'ADC_TIMER_FIRST_ID' ) ),
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num_timers = at.make_optional( at.int_attr( 'ADC_NUM_TIMERS' ) )
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buf_size = at.make_optional( at.int_log2_attr( 'ADC_BUF_SIZE' ) )
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}
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}
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-- DNS client
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@ -147,6 +147,10 @@ local sanity_code = [[
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#define CON_TIMER_ID PLATFORM_TIMER_SYS_ID
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#endif
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#ifndef RFS_FLOW_TYPE
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#define RFS_FLOW_TYPE PLATFORM_UART_FLOW_NONE
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#endif
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#ifdef ELUA_BOOT_RPC
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#ifndef RPC_UART_ID
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#define RPC_UART_ID CON_UART_ID
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@ -206,6 +210,9 @@ function compile_board( fname, boardname )
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-- Check CPU
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local cpulist = bd.get_all_cpus()
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if not utils.array_element_index( cpulist, desc.cpu:upper() ) then
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io.write( utils.col_red( "[CONFIG] Allowed CPUS: " ) )
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for i = 1, #cpulist do io.write( utils.col_red( cpu_list[ i ] .. " " ) ) end
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print ""
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return false, sf( "unknown cpu '%s'", desc.cpu )
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end
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@ -228,7 +228,7 @@ function gen_module_list( desc, plconf, platform, boardname )
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-- Not quite ready yet. We still need to generate the list of generic modules
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-- that can't be completely ROM'd by the LTR patch in a separate macro that will be
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-- handled by linit.c
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local noltr = "#define LUA_LIBS_NOLTR\\\n", found
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local noltr, found = "#define LUA_LIBS_NOLTR\\\n", false
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for m, _ in pairs( gen_list_generic ) do
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if get_map_name( m ) == "<none>" then
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noltr = noltr .. sf( " { %s, %s },\\\n", get_auxlib( m ), get_openf_name( m ) )
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@ -57,6 +57,15 @@ end
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function configure_section( section, sectname, data )
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conf, enabled, required = {}, {}, {}
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-- Check if any part of the section needs to be automatically enabled
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for elname, elval in pairs( data ) do
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if elval and section[ elname ] and section[ elname ].autoenable then
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local auto = section[ elname ].autoenable
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local t = type( auto ) == "table" and auto or { auto }
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for _, v in pairs( t ) do data[ v ] = true end
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end
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end
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-- Configure each element in turn, doing validation if required
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for elname, elval in pairs( data ) do
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if not section[ elname ] then return nil, sf( "unknown element '%s' in section '%s'", elname, sectname ) end
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@ -302,6 +302,10 @@ code{font-size:14px;}
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padding: 2px;
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}
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.grey-background {
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background: silver;
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}
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#interna_2 #article .section_conteudo{width:auto;float:left;margin:10px 10px 0px 0;padding:10px;text-align:normal;}
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#interna_2 #article .section_size{width:700px;}
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#interna_2 #article .section_conteudo h1{font-size:25px;font-family:'fonte_chamada', Helvetica, Arial, sans-serif;text-align:bold;margin-bottom:10px;}
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@ -153,6 +153,13 @@ local menu =
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},
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{ { "Building eLua", "Build de eLua" }, "building.html",
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{
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{ "Configuring the image", "configurator.html",
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{
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{ "CPU", "configurator.html#config_cpu" },
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{ "Components", "configurator.html#config_components" },
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{ "Configuration", "configurator.html#config_config" },
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},
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},
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{ "Building eLua in Linux", "building_unix.html" },
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{ "Building eLua in Windows", "building_win.html" },
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},
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@ -22,6 +22,8 @@ monospacedwords=
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[tabledef-default]
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orange-style=tags="orange"
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graybg-style=tags="graybg"
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noboldgraybg-style=tags="noboldgraybg"
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bluebg-style=tags="bluebg"
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[tabletags-orange]
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bodydata=<td style="color: rgb(255, 102, 0)">|</td>
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@ -29,6 +31,12 @@ bodydata=<td style="color: rgb(255, 102, 0)">|</td>
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[tabletags-graybg]
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bodydata=<td style="background-color: silver; font-weight: bold;" align="center">|</td>
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[tabletags-noboldgraybg]
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bodydata=<td style="background-color: silver;" align="center">|</td>
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[tabletags-bluebg]
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bodydata=<td style="background-color: lightblue;" align="center">|</td>
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[replacements]
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# Status images
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_sok=image:images/stat_ok.png[Status: OK]
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@ -381,11 +381,12 @@ Your build target is specified by *board*. The other options are as follows:
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* **romfs_dir=<directory>**: the directory with the link:arch_romfs.html[romfs] files. The default is "romfs".
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* **board_config_file=<file>**: the configuration file for the board. This will ignore the configuration file generated by the Lua configurator and use the user-specified one instead. For more details
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* **board_config_file=<file>**: the configuration file for the board. The builder will not search the board configuration file in the standard paths, using the user-specified one instead. For more details
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about the configurator, see link:configurator.html[this link].
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* **skip_conf=true | false**: don't call the Lua configurator at all, use whatever configuration file is present in the system instead. This can be used for manually editing the configuration file: run
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the build normally (with skip_conf=false) once, edit the generated configuration header file, then run the build again with skip_conf=true.
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the build normally (with skip_conf=false) once, edit the generated configuration header file, then run the build again with skip_conf=true. For more details about the configurator, see
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link:configurator.html[this link].
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* **-E | -S**: see the link:#singlefile[single file compilation] section below.
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@ -436,7 +437,7 @@ $ lua build_elua.lua board=mbed -E src/main.c
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Preprocess src/main.c, using 'mbed' as the target board.
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---------------------------------------------
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$ lua build_elua.lua board=mbed -E src/main.c
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$ lua build_elua.lua board=mbed -S src/main.c
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---------------------------------------------
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Generate the assembler source file for src/main.c, using 'mbed' as the target board.
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251
doc/en/configurator.txt
Normal file
251
doc/en/configurator.txt
Normal file
@ -0,0 +1,251 @@
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// $$HEADER$$
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The eLua configurator
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---------------------
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*(new in 0.10)* The configurator is used to configure your eLua image by specifying the various modules and components that will be part of the eLua firmware image,
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as well as their specific parameters. It replaces the old configuration mechanism (based on editing platform_conf.h files) with a number of improvements:
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* the configuration is specified using Lua files, with a simple to understand syntax
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* configuration consistency checks are build in the configurator
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* better module selection system
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* easier customization
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The configurator works by reading a Lua based board configuration file and generating the corresponding C header file (which for the most part has the same role
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as the platform_conf.h file that was used before the configurator). The board name is given by the _board_ argument to build_elua (see link:building.html#buildoptions[this link]
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for more details about building your eLua image). The configurator looks for a file named _<board>.lua_ in two locations:
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* *boards/known* is searched first. It contains the configuration of the boards on which eLua is known to run properly. The files under this directory are part of
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the eLua source tree.
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* *boards/custom* is searched if _<board>.lua_ is not found in _boards/known_. The files under this directory are not part of the eLua source tree, so this is the place
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where you can add configuration files for your custom board or customize the configuration for one of the standard boards (see link:#changecustom[here] for more details
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about this).
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After finding _<board>.lua_ in one of these locations, the configurator runs and generates the corresponding header file in __boards/headers/board_<board>.h__. The files
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under _boards/headers_ are also not part of the eLua source tree, so they can be edited manually if needed (see link:#manualedit[here] for more details). After this, the
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configurator is done and the build process continues with the usual steps (compiling and linking the source files).
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[[config_overview]]
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Configuring the build
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~~~~~~~~~~~~~~~~~~~~~
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The build is configured using a Lua file. The Lua file contains code that must return the board configuration as a regular Lua table. An example for the
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_mbed board is given below:
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[source,lua]
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-----------------------------------------------------------
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-- MBED build configuration
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return {
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cpu = 'lpc1768',
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components = {
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sercon = { uart = 0, speed = 115200 },
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romfs = true,
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shell = true,
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term = { lines = 25, cols = 80 },
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linenoise = { shell_lines = 10, lua_lines = 50 },
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rpc = { uart = 0, speed = 115200 },
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adc = { buf_size = 4, first_timer = 0, num_timers = 4 },
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xmodem = true,
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lpc17xx_semifs = true
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},
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config = {
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egc = { mode = "alloc" },
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ram = { internal_rams = 2 }
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},
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modules = {
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generic = { 'all', "-spi", "-can", "-i2c", "-net" },
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platform = 'all',
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}
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}
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-----------------------------------------------------------
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As can be seen, a configuration for a board contains a number of sections:
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* **cpu**: the CPU of the board
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* **components**: the components and their configuration
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* **config**: other configuration items
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* **modules**: list of Lua modules that will be part of the build
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The next section will explain each of the above items (and some that are not present in the above _mbed configuration file) in detail. Please keep in mind that the best way to understand
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the configurator (besides reading this document) is to look at the existing configurations in *board/known*.
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[[config_cpu]]
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Configuring the CPU
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~~~~~~~~~~~~~~~~~~~
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The CPU is given by the *cpu* key in the configuration table. The CPU must be already known to the build system. A list of the known CPUs can be found in the *build_data.lua* file in the
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__platform_list__ table.
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[[config_components]]
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Configuring the components
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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The various components that will be part of the eLua firmware image are given as a table under the *components* section in the main configurator table. The list of components known to the configurator,
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as well as their configuration parameters are listed in the table below. Some parameters have default values; if this is the case, the default values are written in *bold*. Also, some parameters are
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required, others are optional. Optional parameters are written over a [grey-background]#grey background#. All the required timer ID attributes that are not specified in the configuration default to the
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link:arch_platform_timers.html#the_system_timer[system timer ID].
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.Generic components
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[width="99%", cols="<3,<5,<10", options="header"]
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|===================================================================
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^|Key ^|Parameters ^|Meaning
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|romfs |None (true or false) |Enable the link:arch_romfs.html[ROMFS] file system
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|wofs |None (true or false) |Enable the link:arch_wofs.html[WOFS] file system
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|shell |None (true or false) |Enable link:simple_shell.html[the simple shell]
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|advanced_shell |None (true or false) |Enable link:advanced_shell.html[the advanced shell]
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.6+^.^|sercon 2+|*link:using.html#uart[Serial console] (console over UART)*
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|uart |Serial console UART ID
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|speed |Serial port speed
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n|timer (*systimer*) |ID of the timer used by the serial console subsystem
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n|flow (*none*,rts,cts,rtscts) |Flow control on the console UART
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n|buf_size |Buffer size of the console UART. Must be a power of 2.
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.6+^.^|xmodem 2+|*link:simple_shell.html#cmd_recv[XMODEM support]*
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|uart |XMODEM UART ID (*same as sercon.uart*)
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|speed |XMODEM UART speed (*same as sercon.speed*)
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n|timer (*systimer*) |XMODEM timer ID (*same as sercon.timer*)
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n|flow (*none*,rts,cts,rtscts) |Flow control on the XMODEM UART (*same as sercon.flow*)
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n|buf_size |Buffer size of the XMODEM UART (*same as sercon.buf_size*)
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.8+^.^|term 2+|*link:arch_con_term.html[ANSI terminal support]*
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|uart |Term UART ID (*same as sercon.uart*)
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|speed |Term UART speed (*same as sercon.speed*)
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n|timer (*systimer*) |Term timer ID (*same as sercon.timer*)
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n|flow (*none*,rts,cts,rtscts) |Flow control on the term UART (*same as sercon.flow*)
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n|buf_size |Buffer size of the term UART (*same as sercon.buf_size*)
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|lines |Number of lines in the terminal
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|cols |Number of columns in the terminal
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|cints |None (true or false) |Enable support for link:inthandlers.html[eLua generic interrupts] in C
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.2+^.^|luaints 2+|*Enable support for link:inthandlers.html[eLua generic interrupts] in Lua*
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n|queue_size (*32*) |Size of Lua interrupt queue. Must be a power of 2.
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.5+^.^|tcip 2+|*link:arch_tcpip.html[TCP/IP support]*
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|ip |IP of the board (for static IP configuration)
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|netmask |Network mask (for static IP configuration)
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|gw |Default gateway (for static IP configuration)
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|dns |Name server address (for static IP configuration)
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|dns |None (true or false) |DNS resolver support
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|dhcp |None (true or false) |Enable the DHCP client (dynamic IP configuration)
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|tcpipcon |None (true or false) |Enable the link:arch_using.html#tcpip[telnet client]
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.4+^.^|linenoise 2+|*link:linenoise.html[Lua and command line history]*
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|shell_lines |Number of lines from shell kept in history
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|lua_lines |Number of lines from Lua kept in history
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n|autosave_file |After the Lua shell exits, the Lua history buffer will be automatically saved in the file with this name
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.7+^.^|rfs 2+|*Enable the link:arch_rfs.html[remote file system].*
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|uart |RFS UART ID
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|speed |RFS UART speed
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n|timer (*systimer*) |ID of the timer used by the RFS implementation
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n|flow (*none*,rts,cts,rtscts) |Flow control on the RFS UART
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|buf_size |Buffer size of the RFS UART. Must be a power of 2.
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n|timeout (usecs,*100000*) |Timeout for RFS operations
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.4+^.^|mmcfs 2+|*Enable the link:arch_fatfs.html[MMC file system].*
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|spi |ID of the SPI interface used by the SD card
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|cs_port |Port number of the SD card /CS line
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|cs_pin |Pin number of the SD card /CS line
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.4+^.^|rpc 2+|*Enable the link:using.html#rpc[remote procedure call] subsystem.* The parameters are only required when booting in RPC server mode.
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|uart |RPC UART ID
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|speed |RPC UART speed
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n|timer (*systimer*) |ID of the timer used by the RPC implementation
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.5+^.^|sermux 2+|*Enable the link:sermux.html[serial multiplexer]*
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|uart |ID of the serial multiplexer physical UART
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|speed |Speed of the serial multiplexer physical UART
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|flow |Flow control on the serial multiplexer physical UART
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|buf_sizes (array) |Buffer sizes for virtual UARTs. Each size must be a power of 2.
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.2+^.^|adc 2+|*Enable link:refman_gen_adc.html[ADC] support in eLua*
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n|buf_size |ADC sample buffer size. Must be a power of 2.
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|===================================================================
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As can be seen in the table above, some of the parameters are common to more than one component. For example, *CON_UART_ID* is shared between
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*sercon*, *xmodem* and *term*. It is enough to define a shared attribute only once (in one of the components). For example:
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[source,lua]
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-------------------------------------
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sercon = { uart = 0, speed = 115200 }
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term = { lines = 25, cols = 80 }
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xmodem = true
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-------------------------------------
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If you were to redefine a shared attribute to a different value:
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[source,lua]
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-------------------------------------
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sercon = { uart = 0, speed = 115200 }
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term = { lines = 25, cols = 80, uart = 1 }
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xmodem = true
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-------------------------------------
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you'd get a warning from the configurator:
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----------------------------------
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[CONFIG] WARNING: overriding value of attribute 'uart' in element 'term' from '0' to '1' in section 'components'
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----------------------------------
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Besides the generic components in the table above, each platform can specify its own list of platform-specific components:
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.LM3S specific components
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[width="99%", cols="<3,<5,<10", options="header"]
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|===================================================================
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^|Key ^|Parameters ^|Meaning
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|cdc |None (true or false) |Enable UART over CDC (USB to serial)
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|lm3s_pio |None (true or false) |Enable the LM3S platform specific PIO support
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|lm3s_disp |None (true or false) |Enable support for the LCD display on _EK-LM3S1968, _EK-LM3S6965 or _EK-LM3S8962
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|===================================================================
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.STM32 specific components
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[width="99%", cols="<3,<5,<10", options="header"]
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|===================================================================
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^|Key ^|Parameters ^|Meaning
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|stm32_enc |None (true or false) |Enable support for the STM32 timer encoder module
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|===================================================================
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.LPC17xx specific components
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[width="99%", cols="<3,<5,<10", options="header"]
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|===================================================================
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^|Key ^|Parameters ^|Meaning
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|lpc17xx_semifs |None (true or false) |Enable support for the semifs file system (_mbed only)
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|===================================================================
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.AVR32 specific components
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[width="99%", cols="<3,<5,<10", options="header"]
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|===================================================================
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^|Key ^|Parameters ^|Meaning
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|cdc |None (true or false) |Enable UART over CDC (USB to serial)
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|avr32_rtc |None (true or false) |Enable the AVR32 platform specific RTC module
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|avr32_lcd |None (true or false) |Enable the AVR32 character display module (_Mizar32)
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|===================================================================
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||||
[[config_config]]
|
||||
Configuration data
|
||||
~~~~~~~~~~~~~~~~~~
|
||||
The *config* section contains various build time configuration data. The list of the known configuration data items, as well as their parameters are listed in the table below.
|
||||
Some parameters have default values; if this is the case, the default values are written in *bold*. Also, some parameters are required, others are optional. Optional parameters
|
||||
are written over a [grey-background]#grey background#.
|
||||
|
||||
.Generic configuration data
|
||||
[width="99%", cols="<3,<5,<10", options="header"]
|
||||
|===================================================================
|
||||
^|Key ^|Parameters ^|Meaning
|
||||
.3+^.^|vtmr 2+|*Enable support for link:arch_platform_timers.html#virtual_timers[virtual timers]*
|
||||
|num (*0*) |Number of virtual timers
|
||||
|freq (Hz, *1*) |Virtual timer frequency
|
||||
.3+^.^|egc 2+|Configure the link:elua_egc.html[emergency garbage collector]
|
||||
|mode (*disable*, alloc, limit, always) |EGC activation mode
|
||||
|limit (bytes) |EGC activation memory limit
|
||||
.4+^.^|ram 2+|Memory allocator configuration (RAM data)
|
||||
n|internal_rams (*1*) |Number of MCU non-contiguous RAM areas
|
||||
n|ext_start (array of integers) |Array of starting addresses for external RAM areas
|
||||
n|ext_size (array of integers) |Array of sizes sof external RAM areas
|
||||
|===================================================================
|
||||
|
||||
Besides the generic configuration items in the table above, each platform can specify its own list of platform-specific configuration items:
|
||||
|
||||
.LM3S specific configuration data
|
||||
[width="99%", cols="<3,<5,<10", options="header"]
|
||||
|===================================================================
|
||||
^|Key ^|Parameters ^|Meaning
|
||||
.3+^.^|lm3s_adc_timers 2+|Timer configuration for the link:refman_gen_adc.html[ADC subsystem].
|
||||
|first_timer (*0*) |ID of the first timer used by the ADC subsystem
|
||||
|num_timers (*NUM_TIMER*) |Total number of timers used by the ADC subsystem
|
||||
|===================================================================
|
||||
|
||||
TODO: manualedit
|
||||
|
||||
TODO: changecustom
|
||||
|
||||
TODO: add support for multiple SD cards (as in master)
|
||||
|
||||
// $$FOOTER$$
|
||||
|
||||
@ -58,7 +58,7 @@ The eLua shell
|
||||
--------------
|
||||
No matter what's your physical connection (serial, TCP/IP or you PC's monitor after booting eLua), after you setup the
|
||||
PC-eLua board connection and press the "RESET" button on your board or simply press ENTER if you're using the serial connection,
|
||||
you should see the eLua< shell prompt (if you enabled the shell in your build, as described link:building.html[here]). The shell
|
||||
you should see the eLua shell prompt (if you enabled the shell in your build, as described link:building.html[here]). The shell
|
||||
is a simple interactive command interpreter that allows you to:
|
||||
|
||||
- get help on shell usage with the help command,
|
||||
|
||||
@ -3,6 +3,7 @@
|
||||
|
||||
module( ..., package.seeall )
|
||||
local comps = require "components"
|
||||
local at = require "attributes"
|
||||
|
||||
-- Add specific components to the 'components' table
|
||||
function add_platform_components( t, board, cpu )
|
||||
@ -16,6 +17,13 @@ end
|
||||
|
||||
-- Add specific configuration to the 'configs' table
|
||||
function add_platform_configs( t, board, cpu )
|
||||
t.lm3s_adc_timers = {
|
||||
attrs = {
|
||||
first_timer = at.int_attr( 'ADC_TIMER_FIRST_ID', 0 ),
|
||||
num_timers = at.int_attr( 'ADC_NUM_TIMERS', 0 )
|
||||
},
|
||||
required = { first_timer = 0, num_timers = "NUM_TIMER" }
|
||||
}
|
||||
end
|
||||
|
||||
-- Return an array of all the available platform modules for the given cpu
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user