Bispectrum

TMS320LF2407 DSP控制器的串行通信设计(TMS320LF2407 DSP serial communication controller design)

为了避免复杂的三角函数和求根运算，便于数字信号处理器的实时运算，提出一种新 的SVPWM算法。采用SPWM中调制波与载波相比较的规则采样思路，通过在静止坐标系下直接 计算每个参考电压矢量所对应的三相调制波的函数值，进而得到每相电压在一个PWM周期中的 占空比．该算法的主要特点是计算简单，只需要普通的四则运算，适用于数字化系统。在扇区划 分和占空比饱和的处理上较传统SVPWM算法更简便，且过调制范围也略有拓展，具有很大的实 用性。仿真和实验结果证实了该算法的有效性。(In order to avoid complex trigonometric and root operation, ease of operation, real-time digital signal processor, propose a new SVPWM algorithm. Using SPWM modulation wave in comparison with the carrier' s regular sampling ideas, through the stationary coordinate system directly calculated for each reference voltage vector corresponding to the phase modulation wave function value, and then get each phase voltage in a PWM period accounted for air ratio. The main features of the algorithm is to calculate simple and requires only ordinary arithmetic for digital systems. Saturation in the sector division and duty cycle of the treatment more convenient than traditional SVPWM algorithm, and also a slight over-modulation range expansion, with great practicality. Simulation and experimental results confirm the effectiveness of the algorithm.)

TMS320F28377D Epwm死区例程(TMS320F28377D Epwm Dead routine)

TMS320C6455的技术文档，包含DSP TMS320C6455的各种模块详细资料及一些学习DSP的资料，主要的是片伤支持函数API(TMS320C6455 technical documentation, including DSP TMS320C6455 details of the various modules and some DSP-learning materials, the main function is to support the API)

正弦波电流驱动的无刷直流电机性能分析，通过分析方波电流驱动与正弦波电流比较，得出正弦波电流驱动电机性能较好(Sine wave current drive brushless DC motor performance analysis, by analyzing the square-wave current drive with sine wave current comparison, the sine-wave current drive motor performance is better)

直流无刷电机的TMS320F2812的控制源程序，可实现开环和闭环调速。(Brushless DC motor TMS320F2812 control source code, can achieve the open-loop and closed-loop speed control. )

基于时间抽取的8~1024点FFT的程序及输入、输出，用TMS320C54x汇编编写，已通过调试，并对输入方波信号进行FFT变换，检验输出信号是否是一sin波形(Based on the time taken from 8 to 1024 points FFT process and the import, export, and to prepare a compilation TMS320C54x through debugging, and enter the square wave signal FFT transform, testing whether the output signal waveform is a sin)

非常经典的数字信号处理书籍，清华大学程佩清的(Very classic books digital signal processing, Tsinghua University cheng pei qing )

1、ADC用于DMA模式，TIM3的TRGO触发，ADC等时间采样 2、TIM2的1、2通道用于捕获 3、TIM1的第一路，用于SPWM，使用的是对称规则采样法，此方法计算量较小(1, ADC for DMA mode, TRGO TIM3 trigger, ADC and other time sampling 2, TIM2 1,2 channel for capturing 3, the first road TIM1 for SPWM, using a symmetric regular sampling method, this method of calculating the amount of the smaller )

DTMF检测程序。定点计算，可移植到DSP上。实现按键音软解。(DTMF detection program. Sentinel, can be transferred to the DSP. Key tone soft solution.)