SW3683-v05.19.00 PN7462AU_ex_phExCcid列程如何设置Type B卡的10%ASK调制(Amplitude modulation index is required to be between 8 % and 14 %.)

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SW3683-v05.19.00 PN7462AU_ex_phExCcid列程如何设置Type B卡的10%ASK调制(Amplitude modulation index is required to be between 8 % and 14 %.)

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onlineit
Contributor II

SW3683-v05.19.00 PN7462AU_ex_phExCcid列程如何设置Type B卡的10%ASK调制(Amplitude modulation index is required to be between 8 % and 14 %.),在函数phhalHw_PN7462AU_ApplyProtocolSettings中没有相应的设置,整个工程文件都找不到对寄存器CLIF_ANA_TX_AMPLITUDE_REG的配置?难道是通过EEPROM里的默认值来设置的吗?

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Kan_Li
NXP TechSupport
NXP TechSupport

It is controlled by TX_CLK_MODE_RM filed in CLIF_ANA_TX_CLK_CONTROL_REG register (address 0104h).


Have a great day,
Kan

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onlineit
Contributor II

Hi Kan_Li,

    

This is only used to adjust the waveform(Tx envelope shape). It can't adjust the modulation index or the modulation depth.

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Kan_Li
NXP TechSupport
NXP TechSupport

Hi Xia Shuang,

The modulation index or the modulation depth is controlled by TX_RESIDUAL_CARRIER field in CLIF_ANA_TX_AMPLITUDE_REG register (address 0108h).


Have a great day,
Kan

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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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