57.1. SEI Master: Connect BISSC Encoder

57.1.1. 概述

该工程主要演示通过SEI接口获取BISSC编码器位置数据，自动计算采样/更新延时，并通过串口将信息打印出来。

57.1.2. 配置

• 需要两块开发板，一块板子作为Master，一块板子作为Slave。

• Slave的sample的路径为：samples/drivers/sei/slave/bissc，master即为本示例。

• 将Master的SEI_CLK跨针跨至Master侧，将Slave的SEI_CLK跨针跨至Slave侧。

• 将Master的SEI接口信号DATA_P/DATA_N与Slave的SEI接口信号DATA_P/DATA_N相连接。

• 将Master的SEI接口信号CLKO_P/CLKO_N与Slave的SEI接口信号CLKI_P/CLKI_N相连接。

• 将Master的GND与Slave的GND相连接。

57.1.3. 运行现象

• 通过串口终端查看到的log如下，ST数值每次加1。

----------------------------------------------------------------------
$$\   $$\ $$$$$$$\  $$\      $$\ $$\
$$ |  $$ |$$  __$$\ $$$\    $$$ |\__|
$$ |  $$ |$$ |  $$ |$$$$\  $$$$ |$$\  $$$$$$$\  $$$$$$\   $$$$$$\
$$$$$$$$ |$$$$$$$  |$$\$$\$$ $$ |$$ |$$  _____|$$  __$$\ $$  __$$\
$$  __$$ |$$  ____/ $$ \$$$  $$ |$$ |$$ /      $$ |  \__|$$ /  $$ |
$$ |  $$ |$$ |      $$ |\$  /$$ |$$ |$$ |      $$ |      $$ |  $$ |
$$ |  $$ |$$ |      $$ | \_/ $$ |$$ |\$$$$$$$\ $$ |      \$$$$$$  |
\__|  \__|\__|      \__|     \__|\__| \_______|\__|       \______/
----------------------------------------------------------------------
SEI master BiSS_C sample
Started sei engine!
MT:0xa5a, ST:0x5a500000, EW:0x3, CRC:0x799175e, sample_tm:330604, update_tm:337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5a600000, EW:0x3, CRC:0x799174a, sample_tm:36330604, update_tm:36337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5a700000, EW:0x3, CRC:0x7991746, sample_tm:72330604, update_tm:72337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5a800000, EW:0x3, CRC:0x7991701, sample_tm:108330604, update_tm:108337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5a900000, EW:0x3, CRC:0x799170d, sample_tm:144330604, update_tm:144337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5aa00000, EW:0x3, CRC:0x7991719, sample_tm:180330604, update_tm:180337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5ab00000, EW:0x3, CRC:0x7991715, sample_tm:216330604, update_tm:216337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5ac00000, EW:0x3, CRC:0x7991731, sample_tm:252330604, update_tm:252337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5ad00000, EW:0x3, CRC:0x799173d, sample_tm:288330604, update_tm:288337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5ae00000, EW:0x3, CRC:0x7991729, sample_tm:324330604, update_tm:324337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5af00000, EW:0x3, CRC:0x7991725, sample_tm:360330604, update_tm:360337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b000000, EW:0x3, CRC:0x79917a7, sample_tm:396330604, update_tm:396337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b100000, EW:0x3, CRC:0x79917ab, sample_tm:432330604, update_tm:432337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b200000, EW:0x3, CRC:0x79917bf, sample_tm:468330604, update_tm:468337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b300000, EW:0x3, CRC:0x79917b3, sample_tm:504330604, update_tm:504337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b400000, EW:0x3, CRC:0x7991797, sample_tm:540330604, update_tm:540337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b500000, EW:0x3, CRC:0x799179b, sample_tm:576330604, update_tm:576337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b600000, EW:0x3, CRC:0x799178f, sample_tm:612330604, update_tm:612337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b700000, EW:0x3, CRC:0x7991783, sample_tm:648330604, update_tm:648337085, TimeDelay:360*0.1us
MT:0xa5a, ST:0x5b800000, EW:0x3, CRC:0x79917c4, sample_tm:684330604, update_tm:684337085, TimeDelay:360*0.1us