The new LCD PIC firmware has the ability to return the cursor position
in the LCD character RAM and the state of the buttons. This commit
implements eLua module functions to make these available to users.
platform_pwm_op( id, op, data ) did four unrelated tasks, switching on the
"op" parameter:
op==PLATFORM_PWM_OP_SET_CLOCK took a frequency and returned a frequency
op==PLATFORM_PWM_OP_GET_CLOCK took nothing returned a frequency
op==PLATFORM_PWM_OP_START and _STOP both took nothing and returned nothing
this patch replaces it with:
clock = platform_pwm_set_clock( id, clock)
clock = platform_pwm_get_clock( id )
platform_pwm_start( id ) and
platform_pwm_stop( id )
with resulting clarity in the documentation and smaller, faster code.
This does not affect the Lau interface.
Previously, you called platform_adc_op(id, OPERATION, u32 arg) to achieve
six unrelated functions with different arg types and return values:
GET_MAXVAL takes nothing and returns an ADC conversion value
SET_SMOOTHING takes a power-of-two filter length and returns nothing
SET_BLOCKING takes a boolean and returns nothing
IS_DONE takes nothing and returns a boolean
SET_TIMER takes a timer ID and returns nothing
SET_CLOCK takes a frequency in Hz and returns a frequency in Hz.
This changes these to six independent functions, each with the right
parameters and return values.
This also makes the documentation more comprehensible, saves 26 bytes of
executable code and should be very slightly faster.
Needs more work and revision
SRT9 RTC Doc fixes
Introduced the field "ex" for examples on the doc, not yet treated by the doc builder
Examples added for STR9 RTC
Generic info/eLua interrupt handlers: using interrupt handlers from Lua and C
Platform interface/CPU: updated CPU platform interface
Platform interface/Timers: updated timers platform interface
Generic modules/cpu: updated CPU module documentation
Generic modules/tmr: updated timer module documentation
eLua internals/Overview/Implementing interrupts: interrupt handlers implementation guide
Also minor bugfixes in the interrupt implementation.
- added some more documentation (not yet done)
- alternate uarts can be selected (boot mode defaults to console uarts)
- renamed "remote" references to "rpc" (may as well keep the original name)
- switch default error handler to luaL_error (presumably wasn't available for
old 4.x LuaRPC)
- tweaks to exception handling to make things more consistent (hopefully)
