Part Number:AWR2243
中文: 此截图来自《mmWave-Radar-Interface-Control_May_2021》—— 5.3.3 Sub block 0x00AC – AWR_PHASE_SHIFTER_CAL_DATA_SAVE_SB,AWR2243的移相器是6位,但是这里一个LSB却是10位的,这是为什么?难道不是应该是6位吗?请帮忙解答,非常感谢!
English:This screenshot from 《mmWave-Radar-Interface-Control_May_2021》—— 5.3.3 Sub block 0x00AC – AWR_PHASE_SHIFTER_CAL_DATA_SAVE_SB , AWR2243 phase shifter is 6 bit, but here an LSB is 10 bit . Shouldn't it be six? Please help to answer, thank you very much!
Shine:
这里应该是文档的错误,应该是6位,LSB=360/(2^6)=5.625。
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Linda:
这一块是对Tx的移相器做校准用的,即读出目前Tx真实的相位值与配置的值做比对,如果文档没错,那就是校准的时候移相器采用10位;但图中校准观测到的相位值被存储在两个8位字节中,一个LSB又是10位,按理说应该一个LSB是16位,所以请教下这个是怎么对应配置的?
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Shine:
抱歉请忽略我上面的回复。
和产品线工程师确认了一下,文档是正确的,请看下面的回复。
t is correct. The six is for holding the phase shifter index which can go to a maximum of 63 so 6 is chosen for that.
The field that you are correctly observing/checking is the observed phase shift. For that field if you see two bytes are provided to store each value and out of this first 10 bits will be holding the data. AWR2243: Phase shifter in ICD doc – Sensors forum – Sensors – TI E2E support forums
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Linda:
谢谢Shine~
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Shine:
不客气~