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IWR6843: mrr_config_chirp_design配置

Part Number: IWR6843

设置#define PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US   (160.0f),没有输出

设置#define PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US   (150.0f),时有输出

 

 

 

人为修改如下图所示后,

即设置 PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US   (160.0f)

强制幅值PROFILE_USRR_FREQ_SLOPE_VAL

PROFILE_USRR_FREQ_SLOPE_VAL (CONV_SLOPE_MHZ_PER_US_TO_CODEWORD(140.0f))

有输出

对比来看应该是PROFILE_USRR_FREQ_SLOPE_VAL有一个阈值,但是从官方来看PROFILE_USRR_FREQ_SLOPE_VAL并没有超过阈值,但是当PROFILE_USRR_FREQ_SLOPE_VAL设置为(CONV_SLOPE_MHZ_PER_US_TO_CODEWORD(160.0f))时就没有输出,时由于PROFILE_USRR_FREQ_SLOPE_VAL还有其他的阈值限制,还是有其他的原因