MC SDK4.3 PWM频率大于65kHz

我想运行PWM频率大于65kHz的无传感器FOC固件。
我的硬件配置：
Nucleo-F446RE - ＆gt; X-Nucleo-IHM09M1 - ＆gt;定制功率级，带ICS电流传感器和总线电压测量。
我的软件配置：
ST MC SDK4.3 - ＆gt; STM32F4xx_MC库 - ＆gt; STM32F4xx_UserProject - SM32446E-EVAL
IAR Embedded Workbench IDE
我已经成功配置，编译，上传和测试了无频率FOC固件，PWM频率为30kHz。但是，一旦PWM频率增加到65kHz以上，编译器就会产生许多警告，并且控制器无法驱动测试电机。
我检查了固件的源代码。 PWM_FREQUENCY在Drive_parameters.h中声明，没有类型。所有后续调用都将值转换为uint16_t，这解释了65kHz的限制。
我试图改变将PWM_FREQUENCY和TF_REGULAtiON_RATE转换为uint32_t的变量声明。我一个接一个地研究了变量，检查一切是否仍能以30kHz的PWM频率工作。我可以改变除一个以外的所有电话：
一旦我将SpeednPosFdbkClass.h中的SpeednPosFdhkParams_t结构的'hMeasurementFrequency'成员从uint16_t更改为uint32_t，代码将编译但电机将无法运行。我没有尝试识别使用.hMeasurementFrequency的操作并确定它们不能使用uint32_t值的原因。
如果对SDK（以及一般的软件调试）有更深入了解的人能够帮助我弄清楚如何修改代码，我将非常感激。
先谢谢你！
格雷格

＃foc-4.3＃foc-sdk-4.3.0＃motor-control-foc-library



以下为原文




I would like to run the Sensorless FOC firmware with a PWM frequency greater than 65kHz.
My hardware configuration:
Nucleo-F446RE -> X-Nucleo-IHM09M1 -> Custom power-stage with ICS current sensors and bus voltage measurement.
My software configuration:
ST MC SDK4.3 -> STM32F4xx_MC Library -> STM32F4xx_UserProject - SM32446E-EVAL
IAR Embedded Workbench IDE
I have successfully configured, compiled, uploaded and tested the sensorless FOC firmware with a PWM frequency of 30kHz. However, once the PWM frequency is increased above 65kHz, the compiler produces a number of warnings, and the controller is not able to drive the test motor.
I have inspected the source code for the firmware. The PWM_FREQUENCY is declared in Drive_parameters.h, with no type. All subsequent calls cast the value to uint16_t, which explains the 65kHz limit.
I have attempted to change the declaration of variables that will take the PWM_FREQUENCY and TF_REGULATION_RATE to uint32_t. I have worked through the variables one-by-one to check that everything still works with a PWM frequency of 30kHz. I can change all calls apart from one:
Once I change the 'hMeasurementFrequency' member of the SpeednPosFdhkParams_t structure in SpeedNPosFdbkClass.h from uint16_t to uint32_t, the code will compile but the motor will not run. I have unsuccessfully tried to identify operations that use .hMeasurementFrequency and determine why they won't work with a uint32_t value.
I would be incredibly grateful if someone with a more in-depth understanding of the SDK (and software debugging in general) would be able to assist me with figuring out how to modify the code.
Thank you in advance!
Greg

#foc-4.3 #foc-sdk-4.3.0 #motor-control-foc-library