TI中文支持网TMS320F28377DPTP使用PWM1、2、3都没问题，使用PWM11、12时失败。怀疑是IO的复用配置错误，
1、例程对PWM11的IO配置错误，手册上PWM11A PWM11B对应的IO是GPIO20/21。
void InitEPwm11Gpio(void)
{
EALLOW;
/* Disable internal pull-up for the selected output pins
for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFPUD.bit.GPIO165 = 1; // Disable pull-up on GPIO165 (EPWM11A)
GpioCtrlRegs.GPFPUD.bit.GPIO166 = 1; // Disable pull-up on GPIO166 (EPWM11B)
/* Configure EPWM-6 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM6 functional pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFMUX1.bit.GPIO165 = 1; // Configure GPIO165 as EPWM11A
GpioCtrlRegs.GPFMUX1.bit.GPIO166 = 1; // Configure GPIO166 as EPWM11B
EDIS;
}
2、例程对PWM12的IO配置错误，GpioCtrlRegs.GPAMUX2.bit.GPIO22 只有两位，根本配置不到4。
void InitEPwm12Gpio(void)
{
EALLOW;
GpioCtrlRegs.GPAPUD.bit.GPIO22 = 1 ; // Disable pull-up on GPIO22 (EPWM12A)
GpioCtrlRegs.GPAPUD.bit.GPIO23 = 1 ; // Disable pull-up on GPIO23 (EPWM12B)
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 4 ; // Configure GPIO22 as EPWM12A
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 4 ; // Configure GPIO23 as EPWM12B
EDIS;
}
例程与手册不符，头文件也不对。求救。
tang tang3：
能提供PWM11 PWM12的使用例程么？谢谢！
TMS320F28377DPTP使用PWM1、2、3都没问题，使用PWM11、12时失败。怀疑是IO的复用配置错误，
1、例程对PWM11的IO配置错误，手册上PWM11A PWM11B对应的IO是GPIO20/21。
void InitEPwm11Gpio(void)
{
EALLOW;
/* Disable internal pull-up for the selected output pins
for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFPUD.bit.GPIO165 = 1; // Disable pull-up on GPIO165 (EPWM11A)
GpioCtrlRegs.GPFPUD.bit.GPIO166 = 1; // Disable pull-up on GPIO166 (EPWM11B)
/* Configure EPWM-6 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM6 functional pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFMUX1.bit.GPIO165 = 1; // Configure GPIO165 as EPWM11A
GpioCtrlRegs.GPFMUX1.bit.GPIO166 = 1; // Configure GPIO166 as EPWM11B
EDIS;
}
2、例程对PWM12的IO配置错误，GpioCtrlRegs.GPAMUX2.bit.GPIO22 只有两位，根本配置不到4。
void InitEPwm12Gpio(void)
{
EALLOW;
GpioCtrlRegs.GPAPUD.bit.GPIO22 = 1 ; // Disable pull-up on GPIO22 (EPWM12A)
GpioCtrlRegs.GPAPUD.bit.GPIO23 = 1 ; // Disable pull-up on GPIO23 (EPWM12B)
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 4 ; // Configure GPIO22 as EPWM12A
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 4 ; // Configure GPIO23 as EPWM12B
EDIS;
}
例程与手册不符，头文件也不对。求救。
Seven Han：
你好，例程你可以参考：C:\ti\controlSUITE\device_support\F2837xD\v160\F2837xD_examples_Dual\adc_epwm
手册p845：Table7-9. GPIO and Peripheral Muxing 有详细说明
http://www.ti.com.cn/cn/lit/ug/spruhm8f/spruhm8f.pdf
TMS320F28377DPTP使用PWM1、2、3都没问题，使用PWM11、12时失败。怀疑是IO的复用配置错误，
1、例程对PWM11的IO配置错误，手册上PWM11A PWM11B对应的IO是GPIO20/21。
void InitEPwm11Gpio(void)
{
EALLOW;
/* Disable internal pull-up for the selected output pins
for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFPUD.bit.GPIO165 = 1; // Disable pull-up on GPIO165 (EPWM11A)
GpioCtrlRegs.GPFPUD.bit.GPIO166 = 1; // Disable pull-up on GPIO166 (EPWM11B)
/* Configure EPWM-6 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM6 functional pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFMUX1.bit.GPIO165 = 1; // Configure GPIO165 as EPWM11A
GpioCtrlRegs.GPFMUX1.bit.GPIO166 = 1; // Configure GPIO166 as EPWM11B
EDIS;
}
2、例程对PWM12的IO配置错误，GpioCtrlRegs.GPAMUX2.bit.GPIO22 只有两位，根本配置不到4。
void InitEPwm12Gpio(void)
{
EALLOW;
GpioCtrlRegs.GPAPUD.bit.GPIO22 = 1 ; // Disable pull-up on GPIO22 (EPWM12A)
GpioCtrlRegs.GPAPUD.bit.GPIO23 = 1 ; // Disable pull-up on GPIO23 (EPWM12B)
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 4 ; // Configure GPIO22 as EPWM12A
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 4 ; // Configure GPIO23 as EPWM12B
EDIS;
}
例程与手册不符，头文件也不对。求救。
Eric Ma：
1. GPIO165,GPIO166是针对BGA封装的，所以你要改成GPIO20, GPIO21.
2. 配置成PWM，你看一下手册4.5节中的PIN MULTIPLEXING。
先配置GPyGMUXn.GPIO20 = 01.
然后配置GPyMUXn.GPIO20 = 01.
即可。
ERIC
TMS320F28377DPTP使用PWM1、2、3都没问题，使用PWM11、12时失败。怀疑是IO的复用配置错误，
1、例程对PWM11的IO配置错误，手册上PWM11A PWM11B对应的IO是GPIO20/21。
void InitEPwm11Gpio(void)
{
EALLOW;
/* Disable internal pull-up for the selected output pins
for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFPUD.bit.GPIO165 = 1; // Disable pull-up on GPIO165 (EPWM11A)
GpioCtrlRegs.GPFPUD.bit.GPIO166 = 1; // Disable pull-up on GPIO166 (EPWM11B)
/* Configure EPWM-6 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM6 functional pins.
// Comment out other unwanted lines.
GpioCtrlRegs.GPFMUX1.bit.GPIO165 = 1; // Configure GPIO165 as EPWM11A
GpioCtrlRegs.GPFMUX1.bit.GPIO166 = 1; // Configure GPIO166 as EPWM11B
EDIS;
}
2、例程对PWM12的IO配置错误，GpioCtrlRegs.GPAMUX2.bit.GPIO22 只有两位，根本配置不到4。
void InitEPwm12Gpio(void)
{
EALLOW;
GpioCtrlRegs.GPAPUD.bit.GPIO22 = 1 ; // Disable pull-up on GPIO22 (EPWM12A)
GpioCtrlRegs.GPAPUD.bit.GPIO23 = 1 ; // Disable pull-up on GPIO23 (EPWM12B)
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 4 ; // Configure GPIO22 as EPWM12A
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 4 ; // Configure GPIO23 as EPWM12B
EDIS;
}
例程与手册不符，头文件也不对。求救。
user4661451：
28377D这个IO口功能配置有两个地方需要配置，一个高位的，一个低位的。 GPyMUXn和GPyGMUXn 具体的值要配成什么样的，看datasheet就可以了。
