Add sensors, actuators, PWM code

[matches/MCTX3420.git] / BBB code / PWM_real / pwm.h

diff --git a/BBB code/PWM_real/pwm.h b/BBB code/PWM_real/pwm.h
new file mode 100644 (file)
index 0000000..9c95373
--- /dev/null
+++ b/BBB code/PWM_real/pwm.h
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <sched.h>
+#include <stdint.h>
+
+#define START    0x44e00000    // see datasheet of AM335x
+#define LENGTH   1024
+#define OFFSET_1 0xcc          // offset of PWM1 clock (see datasheet of AM335x p.1018)
+
+void pwm_init(void);
+void pwm_start(void);
+void pwm_stop(void);
+void pwm_set_duty(int duty_percent);
+void pwm_set_period(int freq);
\ No newline at end of file