From 60699af63f92f43cc4b4b9e3050fcdd2a8468281 Mon Sep 17 00:00:00 2001 From: Andrew Opalach Date: Wed, 10 Apr 2019 15:14:00 -0400 Subject: add opengl fronend, remove sdl frontend, refactor build system --- .../CEdev/examples/second_counter2/src/main.c | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 frontends/calculator/CEdev/examples/second_counter2/src/main.c (limited to 'frontends/calculator/CEdev/examples/second_counter2/src') diff --git a/frontends/calculator/CEdev/examples/second_counter2/src/main.c b/frontends/calculator/CEdev/examples/second_counter2/src/main.c new file mode 100644 index 0000000..dff02f2 --- /dev/null +++ b/frontends/calculator/CEdev/examples/second_counter2/src/main.c @@ -0,0 +1,57 @@ +#include +#include +#include +#include + +#include +#include +#include + +#define ONE_SECOND 32768/1 +#define HALF_SECOND 32768/2 +#define QUARTER_SECOND 32768/4 + +/* Function Prototypes */ +void reset_counter(void); + +void main(void) { + unsigned int count = 0; + char str[10]; + + timer_1_MatchValue_1 = ONE_SECOND; + + /* Clear the homescreen */ + os_ClrHome(); + + /* Reset the counter */ + reset_counter(); + + do { + + /* Poll until we reach the match value */ + if (timer_IntStatus & TIMER1_MATCH1) { + /* Print the count */ + sprintf(str, "%u", count++); + os_SetCursorPos(0, 0); + os_PutStrFull(str); + + /* Reset the count */ + reset_counter(); + + /* Acknowledge the interrupt */ + timer_IntStatus = TIMER1_MATCH1; + } + + } while (count < 5); +} + +void reset_counter(void) { + /* Disable the timer so it doesn't run when we don't want it to be running */ + timer_Control = TIMER1_DISABLE; + + /* By using the 32768 kHz clock, we can count for exactly 1 second here, or a different interval of time */ + timer_1_Counter = 0; + + /* Enable the timer, set it to the 32768 kHz clock, enable an interrupt once it reaches 0, and make it count down */ + timer_Control = TIMER1_ENABLE | TIMER1_32K | TIMER1_NOINT | TIMER1_UP; +} -- cgit v1.2.3-101-g0448