53.3. QEIV2 Sin Mode TOGI

53.3.1. 概述

Qeiv2 Sin Mode TOGI 工程主要演示配置单Sin模式TOGI功能。在单Sin模式，使能TOGI并设置好w_param，QEIV2会推算出另一组正交的信号，并使用该正交的正余弦信号来计算相位位置，从而提高相位位置的计算精度。

该应用可用于电网并网时的相位计算，例如太阳能发电，发出的电要并入到电网中，就需要计算电网的相位，使得待并网电的相位与电网的相位保持一致。

53.3.2. 配置

使用信号发生器生成一组Sin正弦波，频率为50Hz、峰峰值为2V、中心偏移为1.65V，模拟电网单相信号。
将SIN信号输入至QEIV2 Sin引脚，详见开发板文档 QEIV2 Sin/Cos引脚相关内容

53.3.3. 运行现象

Sin正余弦波的注入，模拟电网单相信号。
上电后，打开串口终端，将打印2000条数据信息，adc为sin波形，pos和ang就是相位，0-360度对应0x0-0xFFFFFFFF。

adc:0x7b96, pos:0x205aff, ang:0x205b00, z:0x1
adc:0x7c42, pos:0x91d5ff, ang:0x91d600, z:0x1
adc:0x7c42, pos:0x91d5ff, ang:0x91d600, z:0x1
adc:0x7d46, pos:0x1038fff, ang:0x1039000, z:0x1
adc:0x7d46, pos:0x1038fff, ang:0x1039000, z:0x1
adc:0x7e14, pos:0x17544ff, ang:0x1754500, z:0x1
adc:0x7e6c, pos:0x1e677ff, ang:0x1e67800, z:0x1
adc:0x7e6c, pos:0x1e677ff, ang:0x1e67800, z:0x1
adc:0x7f43, pos:0x257b1ff, ang:0x257b200, z:0x1
adc:0x80c1, pos:0x2c9a7ff, ang:0x2c9a800, z:0x1
adc:0x80c1, pos:0x2c9a7ff, ang:0x2c9a800, z:0x1
adc:0x8129, pos:0x33b29ff, ang:0x33b2a00, z:0x1
adc:0x8129, pos:0x33b29ff, ang:0x33b2a00, z:0x1
adc:0x8273, pos:0x3ad2aff, ang:0x3ad2b00, z:0x1
adc:0x82c7, pos:0x41ea4ff, ang:0x41ea500, z:0x1
adc:0x82c7, pos:0x41ea4ff, ang:0x41ea500, z:0x1
adc:0x8362, pos:0x48fe5ff, ang:0x48fe600, z:0x1
adc:0x845f, pos:0x50150ff, ang:0x5015100, z:0x1
adc:0x845f, pos:0x50150ff, ang:0x5015100, z:0x1
adc:0x8494, pos:0x5721dff, ang:0x5721e00, z:0x1
adc:0x8494, pos:0x5721dff, ang:0x5721e00, z:0x1
adc:0x86fa, pos:0x5e475ff, ang:0x5e47600, z:0x1
adc:0x8690, pos:0x65595ff, ang:0x6559600, z:0x1
adc:0x8690, pos:0x65595ff, ang:0x6559600, z:0x1
adc:0x8883, pos:0x6c7c0ff, ang:0x6c7c100, z:0x1
adc:0x8883, pos:0x6c7c0ff, ang:0x6c7c100, z:0x1
adc:0x87ba, pos:0x73863ff, ang:0x7386400, z:0x1
adc:0x89c7, pos:0x7aa29ff, ang:0x7aa2a00, z:0x1
adc:0x89c7, pos:0x7aa29ff, ang:0x7aa2a00, z:0x1
adc:0x8a08, pos:0x81b60ff, ang:0x81b6100, z:0x1
adc:0x8b1c, pos:0x88cceff, ang:0x88ccf00, z:0x1
adc:0x8b1c, pos:0x88cceff, ang:0x88ccf00, z:0x1
adc:0x8c30, pos:0x8fe6bff, ang:0x8fe6c00, z:0x1

当上述打印完毕后，将周期性打印如下信息，即相位在0度时产生中断。

position: 0x2c29ff
ang: 0x2c2a00
z: 0x1bf
position: 0x229dff
ang: 0x229e00
z: 0x1c0
position: 0x1c2dff
ang: 0x1c2e00
z: 0x1c1
position: 0xebdff
ang: 0xebe00
z: 0x1c2
position: 0x647ff
ang: 0x64800
z: 0x1c3
position: 0x6c7fff
ang: 0x6c8000
z: 0x1c4
position: 0x63cbff
ang: 0x63cc00
z: 0x1c5
position: 0x5e46ff
ang: 0x5e4700
z: 0x1c6