hw_pwm.c
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#include "c_def.h"
#include "debug.h"
#include "regmap.h"
#include "hw_misc.h"
#include "hw_pwm.h"
#include "hw_gpio.h"
#include "app_gpio.h"
#define PWM_OUT
//#define PWM1_OUT
//#define PWM2_OUT
//#define PWM4_OUT
#define PWM_OUT_PIN GPIO0_00_INDEX
#define PWM1_OUT_PIN GPIO0_01_INDEX
#define PWM2_OUT_PIN 0//GPIO0_09_INDEX
//#define PWM3_OUT_PIN GPIO2_04_INDEX
#define PWM4_OUT_PIN GPIO2_04_INDEX
void pwm_init(void)
{
hw_pwm_init();
#ifdef PWM_OUT
hw_pwm_open();
hw_pwm_clk_set(PWM_CLK_DIV4);
hw_pwm_duty_set(PWM_DUTY_1,PWM_PERIOD_1);
#endif
#if defined PWM1_OUT
//hw_pwm_init();
hw_pwm1_open();
hw_pwm1_clk_set(PWM_CLK_DIV4);
hw_pwm1_duty_set(PWM_DUTY_2,PWM_PERIOD_2);
#endif
#if defined PWM2_OUT
//hw_pwm_init();
hw_pwm2_open();
hw_pwm2_clk_set(PWM_CLK_DIV4);
hw_pwm2_duty_set(PWM_DUTY_3,PWM_PERIOD_3);
#endif
#if defined PWM4_OUT
//hw_pwm_init();
hw_pwm4_open();
hw_pwm4_clk_set(PWM_CLK_DIV4);
hw_pwm4_duty_set(PWM_DUTY_4,PWM_PERIOD_4);
#endif
}
void hw_pwm_init (void)
{
#if 0
gpio0_SetFunction(PWM_OUT_PIN, TRUE);
gpio0_SetOutputEnable(PWM_OUT_PIN);
while (1)
{
gpio0_SetOutput(PWM_OUT_PIN);
delayms(1);
gpio0_ClrOutput(PWM_OUT_PIN);
delayms(1);
}
#endif
#ifdef PWM_OUT
app_gpio_MUXfunction_select(PWM_OUT_PIN, MUX_SEL_FUNCTION2);
//miscClock_gate_set(REG_CLKGATE_PWM);
#endif
#if defined PWM1_OUT
app_gpio_MUXfunction_select(PWM1_OUT_PIN, MUX_SEL_FUNCTION2);
//miscClock_gate_set(REG_CLKGATE_PWM);
#endif
#if defined PWM2_OUT
app_gpio_MUXfunction_select(PWM2_OUT_PIN, MUX_SEL_FUNCTION2);
//miscClock_gate_set(REG_CLKGATE_PWM);
#endif
#if defined PWM4_OUT
app_gpio_MUXfunction_select(PWM4_OUT_PIN, MUX_SEL_FUNCTION2);
#endif
miscClock_gate_set(REG_CLKGATE_PWM);
}
#if 1//PWM
void hw_pwm_open (void)
{
// volatile U32 tmp = REG_PWM_VERSION;
//disable
REG_PWM_CTL = 0x0;
//APB CLK/div
REG_PWM_CLK = PWM_CLK_DIV8;
REG_PWM_DUTY = (900 << 16) | 600;
// REG_PWM_DUTY = (900 << 16) | 0;
//enable
REG_PWM_CTL = 0x1;
}
void hw_pwm_clk_set(U8 div)
{
//APB CLK/div
REG_PWM_CLK = div;
}
void hw_pwm_close (void)
{
REG_PWM_CTL = 0x0; //disable
}
//
// |<-----Period------------>|
// ___________
//___| |______________|
// |<--Duty-->|
void hw_pwm_duty_set (U16 duty, U16 period)
{
#if 1
REG_PWM_CTL = 0x0; //disable
REG_PWM_DUTY = (period << 16) | duty;
REG_PWM_CTL = 0x1; //enable
#endif
}
#endif
#if 1//PWM 1
void hw_pwm1_open (void)
{
// volatile U32 tmp = REG_PWM_VERSION;
//disable
REG_PWM1_CTL = 0x0;
//APB CLK/div
REG_PWM1_CLK = PWM_CLK_DIV8;
REG_PWM1_DUTY = (900 << 16) | 600;
// REG_PWM_DUTY = (900 << 16) | 0;
//enable
REG_PWM1_CTL = 0x1;
}
void hw_pwm1_clk_set(U8 div)
{
//APB CLK/div
REG_PWM1_CLK = div;
}
void hw_pwm1_close (void)
{
REG_PWM1_CTL = 0x0; //disable
}
//
// |<-----Period------------>|
// ___________
//___| |______________|
// |<--Duty-->|
void hw_pwm1_duty_set (U16 duty, U16 period)
{
#if 1
REG_PWM1_CTL = 0x0; //disable
REG_PWM1_DUTY = (period << 16) | duty;
REG_PWM1_CTL = 0x1; //enable
#endif
}
#endif
#if 1//PWM 2
void hw_pwm2_open (void)
{
// volatile U32 tmp = REG_PWM_VERSION;
//disable
REG_PWM2_CTL = 0x0;
//APB CLK/div
REG_PWM2_CLK = PWM_CLK_DIV8;
REG_PWM2_DUTY = (900 << 16) | 600;
// REG_PWM_DUTY = (900 << 16) | 0;
//enable
REG_PWM2_CTL = 0x1;
}
void hw_pwm2_clk_set(U8 div)
{
//APB CLK/div
REG_PWM2_CLK = div;
}
void hw_pwm2_close (void)
{
REG_PWM2_CTL = 0x0; //disable
}
//
// |<-----Period------------>|
// ___________
//___| |______________|
// |<--Duty-->|
void hw_pwm2_duty_set (U16 duty, U16 period)
{
#if 1
REG_PWM2_CTL = 0x0; //disable
REG_PWM2_DUTY = (period << 16) | duty;
REG_PWM2_CTL = 0x1; //enable
#endif
}
#endif
#if 1//PWM 4
void hw_pwm4_open (void)
{
// volatile U32 tmp = REG_PWM_VERSION;
//disable
REG_PWM3_CTL = 0x0;
//APB CLK/div
REG_PWM3_CLK = PWM_CLK_DIV8;
REG_PWM3_DUTY = (900 << 16) | 600;
// REG_PWM_DUTY = (900 << 16) | 0;
//enable
REG_PWM3_CTL = 0x1;
}
void hw_pwm4_clk_set(U8 div)
{
//APB CLK/div
REG_PWM3_CLK = div;
}
void hw_pwm4_close (void)
{
REG_PWM3_CTL = 0x0; //disable
}
//
// |<-----Period------------>|
// ___________
//___| |______________|
// |<--Duty-->|
void hw_pwm4_duty_set (U16 duty, U16 period)
{
#if 1
REG_PWM3_CTL = 0x0; //disable
REG_PWM3_DUTY = (period << 16) | duty;
REG_PWM3_CTL = 0x1; //enable
#endif
}
#endif