CCS: IWR1443 boost

guo jianlin

Other Parts Discussed in Thread: IWR1443BOOST, IWR1443

Tool/software: Code Composer Studio

I have a IWR1443BOOST. Information of Pc display is ok On high accuracy Visualizer. But I use oscilloscope, I can`t see signal on IR_RS232_Tx.

IWR1443.docx

over 4 years ago

0 Akash Gondalia over 4 years ago

TI__Guru 50240 points

Hi Guo,

How are you probing the RS232_Tx pin? According to the schematic, R169 is not installed so you won't see anything on the BP/LP Connector.

Simply install the R169 and you can probe pin 5 on the J6 connector to see the signal.

Cheers,

Akash

0 guo jianlin over 4 years ago in reply to Akash Gondalia

Prodigy 20 points

Pin 5 on the J6 connector is RS232_Tx pin，Pin 7 on the J6 connector is RS232_Rx pin。But I can probe pin 5 and pin 7 on the J6 connector to see the signal.Pin 7 on the J6 connector should not see signal. Why is this？

0 Akash Gondalia over 4 years ago in reply to guo jianlin

TI__Guru 50240 points

Hi Guo,

The Resistors R169 and R166 which enable you to probe AR_RS232TX and AR_RS232RX are not installed by default, you must install these resistors in order to probe these pins on the connector.

Cheers,

Akash

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CCS: IWR1443 boost