DocID024513 Rev 1

19/32

UM1632

Function description

void Lite_timer_Interrupt(void)

This function is the main timer function servicing all timers. It:

•

Is a callback function that receives 1 ms timer ticks from the DALI I/O pin driver layer

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Runs in interrupt

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Updates the timer event flag used for updating the virtual timers (1 ms each)

u8 Process_Lite_timer_IT(void)

This function is called cyclically from the user main program loop in 1 ms intervals when the

timer event flag is signalled. It:

•

Services timer events (if necessary)

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Calls callbacks or updates virtual timer values

3.2.7

dali_config.c

These files contain the DALI stack module configurations. The user can change them

according to requirements, the final ballast hardware/software implementation, the light

element used, the type of light control, the STM8L pin out and the user/device description

information.

The most important variables and definitions in these files are given below in bold.

const u16 DALIP_ArcTable[]

This variable is the logarithmic table for light control. It:

•

Implements the logarithmic table according to the DALI specification

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Converts 8-bit linear values to 16-bit logarithmic output for direct light power control

(see the DALI specification).

const u32 DALIP_FadeTimeTable[]

This variable:

•

Implements the fade time table according to the DALI specification

const u16 DALIP_FadeRateTable[]

This variable:

•

Implements the fade rate table according to the DALI specification

const u8 DaliRegDefaults[]

This variable:

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Implements the default DALI register content according to the DALI specification