60.11. SEI Slave: Simulate SSI Encoder
60.11.1. Overview
This demo shows SEI interface simulate SSI encoder and generate position data, then print related information by uart console.
60.11.2. configuration
Two development boards are required, one as the master and one as the slave.
Master sample path is “samples/drivers/sei/master/ssi”, slave is this example.
Master’s SEI_CLK pins should bridging master side，and slave’s SEI_CLK pins should bridging slave side.
Connect master’s SEI pins DATA_P/DATA_N to slave’s SEI pins DATA_P/DATA_N.
Connect master’s SEI pins CLKO_P/CLKO_N to slave’s SEI pins CLKI_P/CLKI_N.
Connect master’s GND to slave’s GND.
60.11.3. Running the example
When the example runs successfully, the console shows the following log. ST’s value increasing by 1 each sample, sample interval is 200ms.
----------------------------------------------------------------------
$$\ $$\ $$$$$$$\ $$\ $$\ $$\
$$ | $$ |$$ __$$\ $$$\ $$$ |\__|
$$ | $$ |$$ | $$ |$$$$\ $$$$ |$$\ $$$$$$$\ $$$$$$\ $$$$$$\
$$$$$$$$ |$$$$$$$ |$$\$$\$$ $$ |$$ |$$ _____|$$ __$$\ $$ __$$\
$$ __$$ |$$ ____/ $$ \$$$ $$ |$$ |$$ / $$ | \__|$$ / $$ |
$$ | $$ |$$ | $$ |\$ /$$ |$$ |$$ | $$ | $$ | $$ |
$$ | $$ |$$ | $$ | \_/ $$ |$$ |\$$$$$$$\ $$ | \$$$$$$ |
\__| \__|\__| \__| \__|\__| \_______|\__| \______/
----------------------------------------------------------------------
SEI slave SSI sample
Started sei engine!
MT:0xa5a, ST:0xfa5, sample_tm1:268206022, sample_tm2:0, sample_interval:1341030 us
MT:0xa5a, ST:0xfa6, sample_tm1:308206752, sample_tm2:268206022, sample_interval:200003 us
MT:0xa5a, ST:0xfa7, sample_tm1:348207481, sample_tm2:308206752, sample_interval:200003 us
MT:0xa5a, ST:0xfa8, sample_tm1:388208211, sample_tm2:348207481, sample_interval:200003 us
MT:0xa5a, ST:0xfa9, sample_tm1:428208940, sample_tm2:388208211, sample_interval:200003 us
MT:0xa5a, ST:0xfaa, sample_tm1:468209669, sample_tm2:428208940, sample_interval:200003 us
MT:0xa5a, ST:0xfab, sample_tm1:508210398, sample_tm2:468209669, sample_interval:200003 us
MT:0xa5a, ST:0xfac, sample_tm1:548211128, sample_tm2:508210398, sample_interval:200003 us
MT:0xa5a, ST:0xfad, sample_tm1:588211857, sample_tm2:548211128, sample_interval:200003 us
MT:0xa5a, ST:0xfae, sample_tm1:628212585, sample_tm2:588211857, sample_interval:200003 us
MT:0xa5a, ST:0xfaf, sample_tm1:668213314, sample_tm2:628212585, sample_interval:200003 us
MT:0xa5a, ST:0xfb0, sample_tm1:708214043, sample_tm2:668213314, sample_interval:200003 us
MT:0xa5a, ST:0xfb1, sample_tm1:748214771, sample_tm2:708214043, sample_interval:200003 us
MT:0xa5a, ST:0xfb2, sample_tm1:788215500, sample_tm2:748214771, sample_interval:200003 us
MT:0xa5a, ST:0xfb3, sample_tm1:828216228, sample_tm2:788215500, sample_interval:200003 us
MT:0xa5a, ST:0xfb4, sample_tm1:868216957, sample_tm2:828216228, sample_interval:200003 us
MT:0xa5a, ST:0xfb5, sample_tm1:908217685, sample_tm2:868216957, sample_interval:200003 us
MT:0xa5a, ST:0xfb6, sample_tm1:948218414, sample_tm2:908217685, sample_interval:200003 us
MT:0xa5a, ST:0xfb7, sample_tm1:988219142, sample_tm2:948218414, sample_interval:200003 us
MT:0xa5a, ST:0xfb8, sample_tm1:1028219871, sample_tm2:988219142, sample_interval:200003 us
MT:0xa5a, ST:0xfb9, sample_tm1:1068220599, sample_tm2:1028219871, sample_interval:200003 us
MT:0xa5a, ST:0xfba, sample_tm1:1108221327, sample_tm2:1068220599, sample_interval:200003 us
MT:0xa5a, ST:0xfbb, sample_tm1:1148222055, sample_tm2:1108221327, sample_interval:200003 us
MT:0xa5a, ST:0xfbc, sample_tm1:1188222783, sample_tm2:1148222055, sample_interval:200003 us
MT:0xa5a, ST:0xfbd, sample_tm1:1228223512, sample_tm2:1188222783, sample_interval:200003 us
MT:0xa5a, ST:0xfbe, sample_tm1:1268224240, sample_tm2:1228223512, sample_interval:200003 us
MT:0xa5a, ST:0xfbf, sample_tm1:1308224968, sample_tm2:1268224240, sample_interval:200003 us
MT:0xa5a, ST:0xfc0, sample_tm1:1348225695, sample_tm2:1308224968, sample_interval:200003 us
MT:0xa5a, ST:0xfc1, sample_tm1:1388226423, sample_tm2:1348225695, sample_interval:200003 us
MT:0xa5a, ST:0xfc2, sample_tm1:1428227151, sample_tm2:1388226423, sample_interval:200003 us