Good morning,
I have two antennas based on the AWR1843, and I'm trying to synchronize them. Searching in the forum and through the documentation, I understood that it is possible to do so, enabling SYNC_OUT/SYNC_IN signals and setting the frame trigger mode to SW/HW trigger, for the master and slave antenna respectively.
I tried to do so, enabling the pinmux in the "master" antenna with the following code:
Pinmux_Set_OverrideCtrl(SOC_XWR18XX_PINP4_PADBB, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR18XX_PINP4_PADBB, SOC_XWR18XX_PINP4_PADBB_SYNC_OUT);
But it doesnt seem to do anything. I tried to watch the output signal (that should be around 25ns in width) with an oscilloscope, but with no avail.
The "slave" antenna is configured in the same manner, with the pinmux:
Pinmux_Set_OverrideCtrl(SOC_XWR18XX_PINP4_PADBB, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR18XX_PINP4_PADBB, SOC_XWR18XX_PINP4_PADBB_SYNC_IN);
And the frame trigger mode set to TRIGGER_SELECT_HW.
But, obviously, if no signal is generated I cannot test the slave antenna.
So, my question is if I configured all correctly, or if there is something else to do in order to generate the SYNC_OUT signal.
Thank you in advance,
Treves Mathieu