58.12. SEI Slave: Simulate NIKON Encoder
58.12.1. Overview
This demo shows SEI interface simulate NIKON encoder (Product: MAR-MC42AHN00) and generate position data, then print related information by uart console.
58.12.2. Configration
Two development boards are required, one as the master and one as the slave.
Master sample path is “samples/drivers/sei/master/nikon”, slave is this example.
Connect master’s SEI pins DATA_P/DATA_N to slave’s SEI pins DATA_P/DATA_N.
Connect master’s GND to slave’s GND.
58.12.3. 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.
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$$\ $$\ $$$$$$$\ $$\ $$\ $$\
$$ | $$ |$$ __$$\ $$$\ $$$ |\__|
$$ | $$ |$$ | $$ |$$$$\ $$$$ |$$\ $$$$$$$\ $$$$$$\ $$$$$$\
$$$$$$$$ |$$$$$$$ |$$\$$\$$ $$ |$$ |$$ _____|$$ __$$\ $$ __$$\
$$ __$$ |$$ ____/ $$ \$$$ $$ |$$ |$$ / $$ | \__|$$ / $$ |
$$ | $$ |$$ | $$ |\$ /$$ |$$ |$$ | $$ | $$ | $$ |
$$ | $$ |$$ | $$ | \_/ $$ |$$ |\$$$$$$$\ $$ | \$$$$$$ |
\__| \__|\__| \__| \__|\__| \_______|\__| \______/
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SEI slave nikon sample
Started sei engine!
EAX:0x4, CC:0x0, ST:0xfffa5, MT:0x8888, CRC:0xa9, sample_tm1:16614570, sample_tm2:0, sample_interval:103841 us
EAX:0x4, CC:0x0, ST:0xfffa6, MT:0x8888, CRC:0x7a, sample_tm1:48614245, sample_tm2:16614570, sample_interval:199997 us
EAX:0x4, CC:0x0, ST:0xfffa7, MT:0x8888, CRC:0x59, sample_tm1:80613920, sample_tm2:48614245, sample_interval:199997 us
EAX:0x4, CC:0x0, ST:0xfffa8, MT:0x8888, CRC:0xca, sample_tm1:112613594, sample_tm2:80613920, sample_interval:199997 us
EAX:0x4, CC:0x0, ST:0xfffa9, MT:0x8888, CRC:0xe9, sample_tm1:144613269, sample_tm2:112613594, sample_interval:199997 us
EAX:0x4, CC:0x0, ST:0xfffaa, MT:0x8888, CRC:0x55, sample_tm1:176612944, sample_tm2:144613269, sample_interval:199997 us