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IWR6843: 请教level_sensing中的chirSlope问题

Part Number: IWR6843

你好!

使用例程:mmwave_industrial_toolbox_4_7_0\labs\level_sensing\68xx_high_accuracy

配置文件是:

profileCfg 0 60 7 7 114.4 0 0  33.71 1 512 5000 0 0 48

其中dss_data_path.c中:

rlInt16_t freqSlopeConst;

frequencySlopeMHzMicoSec       =   (float)profileCfg.freqSlopeConst * 3600.f* 900.f/((float)(1<<26));

radarProcConfig->highAccuConfig.chirpSlope        =    frequencySlopeMHzMicoSec * 1e12;

计算出:radarProcConfig->highAccuConfig.chirpSlope  = 33.71*3600*900/((float)(1<<26))*1e12 =1.6*1e12

但是运行程序,打断点,查看值为:4.49*1e13?