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About GPT12 quadrature encoder input decoding analysis and introduction of the development case

by:HENGXIANG     2020-11-27
An overview of the content of case 1. 1 function development requirements 1. Two high precision encoders input signal is 1. 3 GPT12 decoding principle 1. The allocation of resources 1 4 MCU pin. 5 GPT12 clock source 1. 1 6 GPT12 Port configuration. 7 GPT12 incremental interface configuration 1. 8 code 1. 9 problems and solution 1. 10 the appendix - Delta encoding input oscilloscope waveform ( 1) Forward ( 2) Transfer is zero ( 3) Inversion of 1. 1 function development requirements in a car electronic products of RPS motor rotor position sensor precision performance evaluation tests, using high precision encoders to coaxial synchronous motor rotor position high precision acquisition, in order to realize the end of the motor RPS sensor is qualified. The performance evaluation test tooling sketch. Tooling figure note: (1) encoder tooling; (2) high precision encoders; 3. The rigid coupling; (4) tooling base plate; (5) motor ontology; 6. RPS motor position sensor; All landowners jaw coupling; End machine tooling side panel. Development requirements: 6. Location of the machine & precision of angular velocity sensor need according to the coaxial external (2) of the quadrature encoder calibration, so we need to capture to the ECU (2) were compared with 6 signal consistency, development MCU program implementation: directly by the GPT12 capture A, B and Z three orthogonal encoder signal directly and settlement of the modules and functions. 。 dfma { 位置:相对; 宽度:1000 px; 保证金:0汽车; } 。 {后dfma:: 位置:绝对的; 左:0; 底部:0; 宽度:30 px; 线- 高度:1。 4. 文本- - - - - - align: center; 背景: color: rgba( 0, 0, 0,. 5) ; 颜色:# fff; font- 尺寸:12 px; Content: 'advertising'; } 。 dfma img { 显示:块; }
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