Ai8G1K08 16PIN 的pwm输出管脚怎么指定

bnrm*** · 发表于 2025-7-30 15:47:50

第一次使用这个芯片，在官方例程已经手册当中没有找到关于pwm输出到哪个管脚的设置寄存器，图片中手册的位置应该是增强型的pwm，但是我用这款应该不支持，那普通的3个通道的pwm在手册哪里？这个手册风格一时没有习惯过来

截图202507301546455651.jpg

bnrm*** · 发表于 2025-7-30 16:00:43

#include "reg51.h"
#include "intrins.h"

#define CYCLE    0x1000
sfr    P_SW1 = 0xa2;
sfr    P_SW2 = 0xba;

sfr    PWMSET    = 0xF1;
sfr    PWMCFG01 = 0xF6;
sfr    PWMCFG23 = 0xF7;
sfr    PWMCFG45 = 0xFE;

#define PWM0C    (*(unsigned int  volatile xdata *)0xFF00)
#define PWM0CH    (*(unsigned char volatile xdata *)0xFF00)
#define PWM0CL    (*(unsigned char volatile xdata *)0xFF01)
#define PWM0CKS    (*(unsigned char volatile xdata *)0xFF02)
#define PWM0TADC (*(unsigned int  volatile xdata *)0xFF03)
#define PWM0TADCH (*(unsigned char volatile xdata *)0xFF03)
#define PWM0TADCL (*(unsigned char volatile xdata *)0xFF04)
#define PWM0IF    (*(unsigned char volatile xdata *)0xFF05)
#define PWM0FDCR (*(unsigned char volatile xdata *)0xFF06)
#define PWM00T1    (*(unsigned int  volatile xdata *)0xFF10)
#define PWM00T1H (*(unsigned char volatile xdata *)0xFF10)
#define PWM00T1L (*(unsigned char volatile xdata *)0xFF11)
#define PWM00T2H (*(unsigned char volatile xdata *)0xFF12)
#define PWM00T2    (*(unsigned int  volatile xdata *)0xFF12)
#define PWM00T2L (*(unsigned char volatile xdata *)0xFF13)
#define PWM00CR    (*(unsigned char volatile xdata *)0xFF14)
#define PWM00HLD (*(unsigned char volatile xdata *)0xFF15)

sfr    P0M1 = 0x93;
sfr    P0M0 = 0x94;
sfr    P1M1 = 0x91;
sfr    P1M0 = 0x92;
sfr    P2M1 = 0x95;
sfr    P2M0 = 0x96;
sfr    P3M1 = 0xb1;
sfr    P3M0 = 0xb2;
sfr    P4M1 = 0xb3;
sfr    P4M0 = 0xb4;
sfr    P5M1 = 0xc9;
sfr    P5M0 = 0xca;

void PWM0_Isr() interrupt 22
{
static bit dir = 1;
static int val = 0;

if (PWMCFG01 & 0x08)
{
      PWMCFG01 &= ~0x08;                   //清中断标志
      if (dir)
      {
         val++;
         if (val >= CYCLE) dir = 0;
      }
      else
      {
         val--;
         if (val <= 1) dir = 1;
      }
      _push_(P_SW2);
      P_SW2 |= 0x80;
      PWM00T2 = val;
      _pop_(P_SW2);
}
}

void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;

PWMSET = 0x01;                            //使能PWM0模块（必须先使能模块后面的设置才有效）

//P_SW1 = 0x80;
PWM0CKS = 0x00;                            // PWM0时钟为系统时钟
PWM0C = CYCLE;                            //设置PWM0周期
PWM00T1= 0x0000;
PWM00T2= 0x0001;
PWM00CR= 0x80;                            //使能PWM00输出
P_SW1 = 0x00;

PWMCFG01 = 0x0c;                         //启动PWM0模块并使能PWM0中断
EA = 1;

while (1);
}

上面的代码是我从官方例程改过的，但是也没实现预期的效果，就是不能进入中断，官方例程也不靠谱？？