diff options
Diffstat (limited to '2.3-1/src/c/hardware/avr/timer')
-rw-r--r-- | 2.3-1/src/c/hardware/avr/timer/u8AVRGetTimerValues.c | 37 | ||||
-rw-r--r-- | 2.3-1/src/c/hardware/avr/timer/u8AVRTimerSetups.c | 42 |
2 files changed, 79 insertions, 0 deletions
diff --git a/2.3-1/src/c/hardware/avr/timer/u8AVRGetTimerValues.c b/2.3-1/src/c/hardware/avr/timer/u8AVRGetTimerValues.c new file mode 100644 index 00000000..c542c182 --- /dev/null +++ b/2.3-1/src/c/hardware/avr/timer/u8AVRGetTimerValues.c @@ -0,0 +1,37 @@ +// Function to get timer count +// +// Calling Sequence +// u8AVRGetTimerValues(timer) +// +// Parameters +// timer: timer whose current count is to be returned (0,1,2) +// ***Refer datasheet for more description about timer +// +// Description +// This function returns the count of timer specified +// +// +// Authors +// Siddhesh Wani +// + + +#include "AVRPeripheralTimer.h" + + +uint8 u8AVRGetTimerValues(uint8 timer) +{ + switch(timer) + { + case 0: + return TCNT0; + + case 1: + break; + case 2: + return TCNT2; + } + + return 0; +} + diff --git a/2.3-1/src/c/hardware/avr/timer/u8AVRTimerSetups.c b/2.3-1/src/c/hardware/avr/timer/u8AVRTimerSetups.c new file mode 100644 index 00000000..1d93429b --- /dev/null +++ b/2.3-1/src/c/hardware/avr/timer/u8AVRTimerSetups.c @@ -0,0 +1,42 @@ +// Function to setup timer on AVR +// +// Calling Sequence +// u8AVRTimerSetups(timer, prescalar) +// +// Parameters +// timer: timer to be set up (0,1,2) +// prescalar: prescalar to be used for timer (0-7) +// ***Refer datasheet for more description about timer +// +// Description +// This function sets prescalr for timers. 'timer' decides which of the +// three (0,1,2) timers available to be used. The 'prescalar' is needed for +// deciding timer clock. Select appropriate prescalar depending on MCU clock +// and requirement. +// +// +// Authors +// Siddhesh Wani +// + + +#include "AVRPeripheralTimer.h" + + +uint8 u8AVRTimerSetups(uint8 timer,uint8 prescalar) +{ + switch(timer) + { + case 0: + TCCR0|= (prescalar & 0x07); //Select clock source + break; + case 1: + break; + case 2: + TCCR2|= (prescalar & 0x07); //Select clock source + break; + } + + return 0; +} + |