Tuya Developer Forum

1.请确认是在 3.8.0框架下添加app后进行编译的结果，除app路径外其余没有进行修改
2.请贴下pwm初始化和pwm设置duty 程序代码

好的，我知道了。初始化完成后tal_pwm_init()(初始化函数中，将频率值赋值给了g_pwm_precision数组)，调用tkl_pwm_precision_set()这个函数，将precision设置值为1000，重新覆盖g_pwm_precision。将精度改回来。600，就对应的脉冲频率为60%

感谢！！！

huanghuan 2023年 Dec 21日 17:58
1.请确认是在 3.8.0框架下添加app后进行编译的结果，除app路径外其余没有进行修改
2.请贴下pwm初始化和pwm设置duty 程序代码

1.是的,直接将app拷贝到3.8.0框架下编译的。

Code: Select all

//pwm初始化
OPERATE_RET app_pwm_init(VOID_T)
{
    OPERATE_RET v_ret = OPRT_COM_ERROR;
    APP_DATA_T app_kv_data;
    TUYA_PWM_BASE_CFG_T v_cfg;

tkl_pwm_mapping_to_gpio((UINT32_T)TUYA_PWM_NUM_0, USER_PWM_CH1_PIN); //PD2
tkl_pwm_mapping_to_gpio((UINT32_T)TUYA_PWM_NUM_1, USER_PWM_CH2_PIN); //PC3
tkl_pwm_mapping_to_gpio((UINT32_T)TUYA_PWM_NUM_2, USER_PWM_CH3_PIN); //PB4
tkl_pwm_mapping_to_gpio((UINT32_T)TUYA_PWM_NUM_3, USER_PWM_CH4_PIN); //PB5

UINT8_T ch;
for(ch=0; ch < PWM_CHANNEL_NUM; ch++){
	tal_system_memset(&app_kv_data, 0, sizeof(APP_DATA_T));
    tal_system_memset(&v_cfg, 0, sizeof(TUYA_PWM_BASE_CFG_T));
    app_light_ctrl_data_switch_get(ch, &app_kv_data.onoff);
    app_light_ctrl_data_bright_get(ch, &app_kv_data.bright);
    if(app_kv_data.onoff == 0) v_cfg.duty = 0;
    else v_cfg.duty = app_kv_data.bright;
    v_cfg.frequency = pwm_frequency;
    v_cfg.polarity = pwm_polarity;
    tkl_pwm_init(ch, &v_cfg);
}

//启动pwm
v_ret = tkl_pwm_start(TUYA_PWM_NUM_0);
if(v_ret != OPRT_OK){
    TAL_PR_ERR("!!!!!!!!!!!!!!!!!!!!!! PC1 mapping start !!!!!!!!!!!!!!!!!!!!!!");
}
v_ret = tkl_pwm_start(TUYA_PWM_NUM_1);
if(v_ret != OPRT_OK){
    TAL_PR_ERR("!!!!!!!!!!!!!!!!!!!!!! PC4 mapping start !!!!!!!!!!!!!!!!!!!!!!");
}
v_ret = tkl_pwm_start(TUYA_PWM_NUM_2);
if(v_ret != OPRT_OK){
    TAL_PR_ERR("!!!!!!!!!!!!!!!!!!!!!! PB4 mapping start !!!!!!!!!!!!!!!!!!!!!!");
}
v_ret = tkl_pwm_start(TUYA_PWM_NUM_3);
if(v_ret != OPRT_OK){
    TAL_PR_ERR("!!!!!!!!!!!!!!!!!!!!!! PD2 mapping start !!!!!!!!!!!!!!!!!!!!!!");
}

g_user_pwm_init_flag = TRUE; //pwm初始化标志
g_pwm_bPolarity = pwm_polarity; //pwm极性标志
app_light_ctrl_ch_num_set(PWM_CHANNEL_NUM); //设置pwm通道数
TAL_PR_DEBUG("pwm init ok!");
return v_ret;
}

//更改duty
STATIC VOID_T __app_ctrl_pwm_duty_set(UCHAR_T channel, USHORT_T duty)
{
    //TAL_PR_DEBUG("channel = %d , duty = %d\n", channel, duty);
    if (duty > MAX_DUTY)
    {
        TAL_PR_DEBUG("PWM SET DUTY ERR");
        return;
    }
    if (channel >= sg_light_channel)
    {
        TAL_PR_DEBUG("PWM SET DUTY CHANNEL ERR");
        return;
    }

if (OPRT_OK != tal_pwm_duty_set((TUYA_PWM_NUM_E)channel, duty))
{
    TAL_PR_DEBUG("PWM SET DUTY ERR");
    return;
}
}

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