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AWR2243: 两片级联,测试连续模式

Part Number: AWR2243

第一片AWR2243能够发出77G的信号,第二片不能发出,只发热,请问什么情况?

我设置的参数和函数如下:

ctrlCfg.u.continuousModeCfg[0].cfg.startFreqConst=(rlUInt32_t) ((float)frequence * (1U << 26) / 3.6);
ctrlCfg.u.continuousModeCfg[0].dataTransSize=256;
ctrlCfg.u.continuousModeCfg[0].cfg.digOutSampleRate=20000;
ctrlCfg.u.continuousModeCfg[0].cfg.rxGain=42;
ctrlCfg.u.continuousModeCfg[0].cfg.txOutPowerBackoffCode=13-tx_power;
ctrlCfg.u.continuousModeCfg[0].cfg.vcoSelect=1;