|
|
================================================================================
|
|
|
样例使用说明
|
|
|
Sample Description
|
|
|
================================================================================
|
|
|
功能描述：
|
|
|
此样例实现了定时器的刹车功能，CH1和CH1N互补pwm输出，接收到外部IO口的刹车信号（低
|
|
|
电平）后，PWM信号关闭，由于BDTR.AOE置位，所以刹车信号取消（高电平）后，继续pwm输
|
|
|
出，此样例实现了死区功能。
|
|
|
|
|
|
Function descriptions:
|
|
|
This example realizes the braking function of the timer, CH1 and CH1N complement
|
|
|
pwm output, after receiving the brake signal (low level) of the external IO port
|
|
|
the PWM signal is turned off.Because the BDTR.AOE is set, so after the brake
|
|
|
signal is cancelled (high level), and the pwm output continues. The dead time is
|
|
|
inserted in the complementary output of CH1 and CH1N
|
|
|
================================================================================
|
|
|
测试环境：
|
|
|
测试用板：PY32F403_STK
|
|
|
MDK版本： 5.28
|
|
|
IAR版本： 9.20
|
|
|
GCC版本：GNU Arm Embedded Toolchain 10.3-2021.10
|
|
|
|
|
|
Test environment:
|
|
|
Test board: PY32F403_STK
|
|
|
MDK Version: 5.28
|
|
|
IAR Version: 9.20
|
|
|
GCC Version: GNU Arm Embedded Toolchain 10.3-2021.10
|
|
|
================================================================================
|
|
|
使用步骤：
|
|
|
1. 下载并运行程序
|
|
|
2. 通过逻辑分析仪捕捉上述两个通道的电平，判断pwm输出信号是否正确
|
|
|
3. PB12输入低电平，判断刹车信号是否生效
|
|
|
|
|
|
Example execution steps:
|
|
|
1. compile and download the program to MCU and run it;
|
|
|
2. Capture the level of the above six channels through the logic analyzer to
|
|
|
determine whether the pwm output signal is correct
|
|
|
3. Low level input into PB12 ,determine whether the brake signal is effective
|
|
|
================================================================================
|
|
|
注意事项：
|
|
|
1. 引脚
|
|
|
CH1 -> PA8
|
|
|
CH1N -> PB13
|
|
|
刹车输入 -> PB12
|
|
|
2. 通过调整OCxE,CCxP,OISx,CCxNE,CCxNP,OISxN的配置，可实现刹车功能的各种应用
|
|
|
|
|
|
Notes:
|
|
|
1. Pins
|
|
|
CH1 -> PA8
|
|
|
CH1N -> PB13
|
|
|
BKIN -> PB12
|
|
|
2. By adjusting the OCxE CCxP, OISx CCxNE, CCxNP, OISxN configuration, which can
|
|
|
realize the brake function of a variety of applications
|
|
|
================================================================================ |