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kunlun/dtest/dtest3/kl3_pwm_test/kl3_pwm_test.c

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2024-09-28 14:24:04 +08:00
/* os shim includes */
#include "os_types.h"
#include "dbg_io.h"
#include "iot_io.h"
#include "gpio_mtx.h"
#include "pwm.h"
#include "cpu.h"
void delay_sometime(uint32_t times)
{
uint32_t loop = 0;
while (loop++ < times) {
__asm volatile ("nop\n");
}
}
void register_print_by_addr(uint32_t addr, int num)
{
volatile uint32_t *p_addr = (volatile uint32_t *)addr;
int i;
for (i = 0; i < num; i++) {
iot_printf("%08x,", *p_addr);
p_addr ++;
}
iot_printf("\r\n");
}
/*
PWM 使,PWM0为主PWM1和PWM2 PWM0同步pwm_tb_phase_set
*/
void pwm_main2(void)
{
uint8_t ch = PWM_CHANNEL_0;
dbg_uart_init();
pwm_tbclk_sync(ch, false);
// 8 7
pwm_gpio_config(ch, 26, 27);
pwm_tbclk_ctrl(ch, true); // 使能PWM0 的时钟
pwm_tb_phase_set(ch, 0);
pwm_tbctl_set(ch, TB_DISABLE, TB_SHADOW, TB_SYNC_CNT_ZERO,99);
//pwm waveform period
pwm_tb_period_set(ch, 9999);
//load from shadow select mode
pwm_cmpctl_set(ch, CC_CTR_ZERO, CC_CTR_ZERO, CC_NO_SHADOW, CC_NO_SHADOW);
//action when counter equals zero or CMPA register
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_cmpa_cmpb_set(ch, 3000, 6000);
pwm_cnt_mode_set(ch, TB_COUNT_UP);
pwm_db_inmode_set(ch, DB_INMODE_PWMA_RAW, DB_INMODE_PWMB_RAW);
pwm_db_polsel_set(ch, DB_POLSE_NORMAL, DB_POLSE_INVERTED); //A不反相B反相
//pwm_db_outmode_set(ch, DB_OUTMODE_BYPASS, DB_OUTMODE_DELAYED );//A不产生死区B产生
//pwm_db_outmode_set(ch, DB_OUTMODE_BYPASS, DB_OUTMODE_BYPASS ); //都不产生死区
pwm_db_rising_delay_set(ch, 1000);
pwm_db_falling_delay_set(ch, 1000);
//-----------------------------------------------------------------------------
ch = PWM_CHANNEL_1;
// 10 9
pwm_gpio_config(ch, 28, 29);
pwm_tbclk_ctrl(ch, true); // 使能PWM1 的时钟
pwm_tb_phase_set(ch, 3333);
pwm_tbctl_set(ch, TB_ENABLE, TB_SHADOW, TB_SYNC_PWM,99);
//pwm waveform period
pwm_tb_period_set(ch, 9999);
//load from shadow select mode
pwm_cmpctl_set(ch, CC_CTR_ZERO, CC_CTR_ZERO, CC_NO_SHADOW, CC_NO_SHADOW);
//action when counter equals zero or CMPA register
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_cmpa_cmpb_set(ch, 3000, 6000);
pwm_cnt_mode_set(ch, TB_COUNT_UP);
pwm_db_inmode_set(ch, DB_INMODE_PWMA_RAW, DB_INMODE_PWMB_RAW);
pwm_db_polsel_set(ch, DB_POLSE_NORMAL, DB_POLSE_INVERTED);
pwm_db_outmode_set(ch, DB_OUTMODE_BYPASS, DB_OUTMODE_BYPASS );
pwm_db_rising_delay_set(ch, 1000);
pwm_db_falling_delay_set(ch, 1000);
//-------------------------------------------------------------------------
ch = PWM_CHANNEL_2;
// 19 38
pwm_gpio_config(ch, 9, 12);
pwm_tbclk_ctrl(ch, true); // 使能PWM2 的时钟
pwm_tb_phase_set(ch, 6666);
pwm_tbctl_set(ch, TB_ENABLE, TB_SHADOW, TB_SYNC_PWM,99);
//pwm waveform period
pwm_tb_period_set(ch, 9999);
//load from shadow select mode
pwm_cmpctl_set(ch, CC_CTR_ZERO, CC_CTR_ZERO, CC_NO_SHADOW, CC_NO_SHADOW);
//action when counter equals zero or CMPA register
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_cmpa_cmpb_set(ch, 3000, 6000);
pwm_cnt_mode_set(ch, TB_COUNT_UP);
//选择延迟输入信号
pwm_db_inmode_set(ch, DB_INMODE_PWMB_RAW, DB_INMODE_PWMB_RAW);
pwm_db_polsel_set(ch, DB_POLSE_NORMAL, DB_POLSE_NORMAL);
pwm_db_outmode_set(ch, DB_OUTMODE_BYPASS, DB_OUTMODE_BYPASS );
pwm_db_rising_delay_set(ch, 100);
pwm_db_falling_delay_set(ch, 200);
//-------------------------------------------------------------------------
pwm_tbclk_sync(ch, true);
while (1) {
delay_sometime(1000000);
delay_sometime(1000000);
delay_sometime(1000000);
delay_sometime(1000000);
delay_sometime(1000000);
}
}
//PWM 模块输出两路占空比可以独立调节的PWM波形,需要注意的点是在不同的
//占空比组合下需要对AQ的特别设置
void pwm_main3(void)
{
uint8_t ch = PWM_CHANNEL_0;
dbg_uart_init();
pwm_tbclk_sync(ch, false);
// 8 7
pwm_gpio_config(ch, 26, 27);
pwm_tbclk_ctrl(ch, true); // 使能PWM0 的时钟
pwm_tb_phase_set(ch, 0);
pwm_tbctl_set(ch, TB_DISABLE, TB_SHADOW, TB_SYNC_CNT_ZERO, 99);
//pwm waveform period
pwm_tb_period_set(ch, 9999);
//load from shadow select mode
//注意这里必须都设为CC_CTR_PRD,如果为CC_CTR_ZERO 输出的波形不对,
//在B的占空比为0时,A会少一个脉冲
pwm_cmpctl_set(ch, CC_CTR_PRD, CC_CTR_PRD, CC_SHADOW, CC_SHADOW);
//action when counter equals zero or CMPA register
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_cnt_mode_set(ch, TB_COUNT_UP);
// 独立输出PWM 0-100都可以给duty_a和duty_b初值分别赋
// 0 0 A B输出相同占空比的PWM波形
// 0 100 A 为0时B不为0
// 100 0 B 为0时A不为0
//
int duty_a = 0;
int duty_b = 10000;
pwm_cmpa_cmpb_set(ch, duty_a, duty_b);
pwm_tbclk_sync(ch, true);
while (1) {
//因为cntb_up的优先级高于cnta_up所以最终起作用的是b故应改变b的配置
if (duty_a == duty_b) {
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
} else if (duty_a == 0) {
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_SET, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
} else if (duty_b == 0) {
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_SET, AQ_NOTHING);
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
} else {
pwm_aqctlb_set(ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_aqctla_set(ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
}
pwm_cmpa_cmpb_set(ch, duty_a, duty_b);
duty_a += 100;
if (duty_a > 10000) duty_a = 0;
duty_b += 100;
if (duty_b > 10000) duty_b = 0;
delay_sometime(10000);
}
}
int g_duty_a = 100;
int g_duty_b = 200;
uint8_t g_ch = PWM_CHANNEL_3;
//每个周期都改变占空比
uint32_t interrupt_cb(void)
{
g_duty_a += 100;
if (g_duty_a > 10000) {
g_duty_a = 100;
}
g_duty_b += 100;
if (g_duty_b > 10000) {
g_duty_b = 200;
}
pwm_cmpa_cmpb_set(g_ch, g_duty_a, g_duty_b);
return 0;
}
// 中断测试
void pwm_main4(void)
{
uint32_t cpu_id = cpu_get_mhartid();
dbg_uart_init();
iot_interrupt_init(cpu_id);
pwm_tbclk_sync(g_ch, false);
// 8 7
pwm_gpio_config_with_isr(g_ch, 26, 27, interrupt_cb);
pwm_tbclk_ctrl(g_ch, true); // 使能PWM 的时钟
pwm_tb_phase_set(g_ch, 0);
pwm_tbctl_set(g_ch, TB_DISABLE, TB_SHADOW, TB_SYNC_CNT_ZERO,99);
//pwm waveform period
pwm_tb_period_set(g_ch, 9999);
//load from shadow select mode
//注意若A或B 的ld mode被配置为 CC_CTR_FREEZE 则B的占空比保持着不再变化,
//却决于原来的状态,若是上电第一次运行,则B保持全低或者全高
pwm_cmpctl_set(g_ch, CC_CTR_PRD, CC_CTR_PRD, CC_SHADOW, CC_SHADOW);
//action when counter equals zero or CMPA register
pwm_aqctlb_set(g_ch, AQ_SET, AQ_NOTHING,
AQ_NOTHING, AQ_NOTHING, AQ_CLEAR, AQ_NOTHING);
pwm_aqctla_set(g_ch, AQ_SET, AQ_NOTHING,
AQ_CLEAR, AQ_NOTHING, AQ_NOTHING, AQ_NOTHING);
pwm_cnt_mode_set(g_ch, TB_COUNT_UP);
//pwm_interrupt_init(g_ch);
pwm_cmpa_cmpb_set(g_ch, g_duty_a, g_duty_b);
pwm_tbclk_sync(g_ch, true);
while (1);
}
//输出 h 和 l输出互补的pwm 波形
void pwm_main5()
{
uint8_t ch = PWM_CHANNEL_0;
float duty = 0.01;
dbg_uart_init();
pwm_gpio_config(ch, 58, 59);
pwm_init(ch);
pwm_start(ch);
pwm_set_duty(ch, 50 * 100);
while (1) {
//pwm_set_duty(ch, duty * 100);
duty += 0.01;
if (duty > 100) {
duty = 0.01;
}
delay_sometime(1000);
}
}
#ifdef __GNUC__
int main(void)
{
pwm_main5();
return 0;
}
#endif // __GCC__