User's Guide

Base station and client modes
This is done by driver after bootup. Bit [24] of register $REG_FTA_CFG0 determines the role of a device.
0 = base station, 1 = locomotive.
Command Action
reg_wr $REG_FTA_CFG0 0x0036c20f
Set as base station
reg_wr $REG_FTA_CFG0 0x0136c20f
Set as locomotive
MIMOmodes
Setting MIMO modes involves configuring transceiver and RF components.
l Set bit[5] of register $REG_AD9361_CFG1 to turn on AD9361 transceiver for antenna port 1/2.
l Set bit[17] of register $REG_AD9361_CFG1 to turn on AD9361 transceiver for antenna port 3/4.
l The command cfg_ad9361 pa turn on/off four power amplifiers for four RF ports.
Command Sequences Action
>reg_wr $REG_AD9361_CFG1 0x110130
>cfg_ad9361 pa 1100
Set MIMO 2X2 mode, using antenna 1/2
>reg_wr $REG_AD9361_CFG1 0x130110
>cfg_ad9361 pa 0011
Set MIMO 2X2 mode, using antenna 3/4
>reg_wr $REG_AD9361_CFG1 0x130130
>cfg_ad9361 pa 1111
Set MIMO dual 2X2 mode
> reg_wr $REG_AD9361_CFG1 0x130130
> cfg_ad9361 pa 1111
Set MIMO 4X4 mode
SDR-2400/SM-SDR-2400 User Guide Base station and client modes | 23