Infineon GPT12 Timer Concatenation 1 Manual page 5

Timer concatenation of gpt12, aurix tc2xx microcontroller training

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Implementation

Configuration of the GPT12 module

The function init_GPT12_module() is used to configure the two timers T5 and T6 of

GPT2 for concatenated 32-bit operation. It contains the following steps:

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The GPT12 module is enabled by calling the function IfxGpt12_enableModule().

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GPT2 prescaler is set to IfxGpt12_Gpt2BlockPrescaler_2 to get the highest possible

frequency by calling IfxGpt12_setGpt2BlockPrescaler().

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The functions IfxGpt12_T6_setMode() and IfxGpt12_T5_setMode() are used to

configure the modes of both timers. The core timer T6 is set to IfxGpt12_Mode_timer

and the auxiliary timer T5 is set to IfxGpt12_Mode_counter.

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Both the rising and falling edge of the Output Toggle Latch of timer T6 are selected as

active transition with the function IfxGpt12_T5_setCounterInputMode().

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The function IfxGpt12_T5_setRemoteControl() configures the timer T5 to be

activated by the run bit of core timer T6. IfxGpt12_T6_run() function starts timer T6

and implicitly timer T5, because the overflow of T6 is used as clock for T5.

The functions above are provided by the iLLD header IfxGpt12.h.

2019-10-17