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MMWAVE-STUDIO: DCA1000, AWR1843 "SPI Disconnect"

Part Number: MMWAVE-STUDIO
Other Parts Discussed in Thread: AWR1843, AWR1843BOOST

Hello, 

I want to use DCA1000 board with AWR1843. 

Only one power is provided to AWR1843 and switch3 of DCA1000 to RADAR_5V_IN

[AWR1843]

SOP0 : ON

SOP1 : ON

SOP2 : OFF

[MMSTUDIO WAVE] 

How to success the SPI connect ?? 

[19:54:05] Device Status : XWR1843/ASIL-B/SOP:2/ES:2
[19:54:05] [RadarAPI]: ar1.SaveSettings('C:\Users\DCLAB\AppData\Roaming\RSTD\ar1gui.ini')
[19:54:33] [RadarAPI]: ar1.DownloadBSSFw("C:\\ti\\mmwave_studio_02_01_01_00\\rf_eval_firmware\\radarss\\xwr18xx_radarss.bin")
[19:54:33] [RadarAPI]: Downloading BSS Patch RPRC Binary..
[19:54:35] [RadarAPI]: ar1.GetBSSFwVersion()
[19:54:35] [RadarAPI]: BSSFwVersion:(02.00.00.01 (05/10/17))
[19:54:36] [RadarAPI]: ar1.GetBSSPatchFwVersion()
[19:54:36] [RadarAPI]: BSSPatchFwVersion:(01.02.05.02 (30/04/19))
[19:54:39] [RadarAPI]: ar1.DownloadMSSFw("C:\\ti\\mmwave_studio_02_01_01_00\\rf_eval_firmware\\masterss\\xwr18xx_masterss.bin")
[19:54:40] [RadarAPI]: Downloading MSS RPRC Binary..
[19:54:42] [RadarAPI]: ar1.GetMSSFwVersion()
[19:54:42] [RadarAPI]: MSSFwVersion:(01.02.05.02 (16/07/19))
[19:55:20] [RadarAPI]: ar1.PowerOn(0, 1000, 0, 0)
[19:55:20] Status: Failed, Error Type: RESP TIMEOUT
[19:55:24] MSS Power Up async event was not received!
[19:55:32] [RadarAPI]: Error: ReadRegister failed with error -2

Thank you for your answer