46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
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#ifndef _FM_INSIDE_H_
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#define _FM_INSIDE_H_
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#if(TCFG_FM_INSIDE_ENABLE == ENABLE)
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#if DAC2IIS_EN
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#define FM_DAC_OUT_SAMPLERATE 44100L
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#else
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#define FM_DAC_OUT_SAMPLERATE 44100L
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#endif
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/************************************************************
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* FM调试说明
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*真台少： 假台多： 叠台多：
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*减小 FMSCAN_CNR(主) 加大 FMSCAN_CNR(主) 减小：FMSCAN_AGC
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*减小 FMSCAN_P_DIFFER(主) 加大 FMSCAN_P_DIFFER(主)
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*加大 FMSCAN_N_DIFFER(次) 减小 FMSCAN_N_DIFFER(次)
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*
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*注意：不要插串口测试搜台数
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*************************************************************/
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#define FMSCAN_SEEK_CNT_MIN 400 //最小过零点数 400左右
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#define FMSCAN_SEEK_CNT_MAX 600 //最大过零点数 600左右
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#define FMSCAN_960_CNR 34 //谐波96M的基础cnr 30~40
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#define FMSCAN_1080_CNR 34 //谐波108M的基础cnr 30~40
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#define FMSCAN_AGC -1 //AGC阈值 -55左右,默认最大增益
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#define FMSCAN_ADD_DIFFER -67 //低于此值增加noise differ, -67左右
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#define FMSCAN_CNR 2 //cnr 1以上
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#define FMSCAN_P_DIFFER 2 //power differ 1以上
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#define FMSCAN_N_DIFFER 8 //noise differ 8左右
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#define FM_IF 3 //0,1.875; 1,2.143; 2,1.5; 3,cnr低的中频听台
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void fm_inside_init(void *priv);
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bool fm_inside_set_fre(void *priv, u16 fre);
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bool fm_inside_read_id(void *priv);
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void fm_inside_powerdown(void *priv);
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void fm_inside_mute(void *priv, u8 flag);
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#endif
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#endif // _FM_INSIDE_H_
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