本帖最后由 CARL_SUN 于 2016-12-27 11:53 编辑
本人只是一个新手。野路子，没有经过专业的学习，所以写出代码不怎么规范，更不懂运用一些公式。所定代码也像本人的表达一样杂乱无章，也拖沓无序。占用大量空间，然而，这不是我要讲的重点。最近自己玩一款市场上常用的RGB控制。类似TM1804的那玩意。需要单线通讯。
需要功能是：一串40颗灯，共两串一起工作做摩托车的左右氛围灯与转向灯。氛围做三种闪烁花样。每种花样的各种颜色隔一段时间自动变化。三种花样用摩托大灯开关一个条线控制，闪大灯一次，变换一次花样。大灯时间开超过1秒，认为是开大灯，不变换花样。另需要两条转向线，分左右转向。一边转向时，对应边的灯暂停花样，改为用R/G混成的黄光亮。转向信号消失，相应边完全不亮。消失时间达到1.5秒左右，返回到花样闪烁。
现在的思路是这样：
用两个I/O做输出（做两串的控制输出），用TIM4定时器做时间记时，变换颜色。用一个I/O中断做花样变换。
写好代码，出现问题了。
如图中：通讯方式，此通讯需要快速传输编码。并且在传码过程中连续传输，不能中断。而关闭中断后，记时与变换多少会出现问题。
代码：一种闪烁花样：
void led_fhl (u8 j, u8 biaozhi) //j为LED的组数
{
u8 a;
do_rest();
color();
if(turn_l_status)
{
if(turn_l)
{
g_date_l = 255 ;
r_date_l = 50 ;
b_date_l = 0 ;
}
else
{
g_date_l = 0 ;
r_date_l = 0 ;
b_date_l = 0 ;
}
u8 m;
for( m = 0; m < led_number ; m++)
{
write_single_l( r_date_l );
write_single_l( g_date_l );
write_single_l( b_date_l );
}
}
if(turn_r_status)
{
if(turn_r)
{
g_date_r = 255 ;
r_date_r = 50 ;
b_date_r = 0 ;
}
else
{
g_date_r = 0 ;
r_date_r = 0 ;
b_date_r = 0 ;
}
u8 n;
for( n = 0; n< led_number ; n++)
{
write_single_r( r_date_r );
write_single_r( g_date_r );
write_single_r( b_date_r );
}
}
__disable_interrupt();
for( a = 0; ((a < j)&&(turn_r_status == 0)) ; a++)
{
write_single_r(led_pwm_r[biaozhi+0]*r_status);
write_single_r(led_pwm_r[biaozhi+0]*g_status);
write_single_r(led_pwm_r[biaozhi+0]*b_status);
write_single_r(led_pwm_r[biaozhi+1]*r_status);
write_single_r(led_pwm_r[biaozhi+1]*g_status);
write_single_r(led_pwm_r[biaozhi+1]*b_status);
write_single_r(led_pwm_r[biaozhi+2]*r_status);
write_single_r(led_pwm_r[biaozhi+2]*g_status);//*(!turn_r_status)+(g_date_r*turn_r_status));
write_single_r(led_pwm_r[biaozhi+2]*b_status);
write_single_r(led_pwm_r[biaozhi+3]*r_status);
write_single_r(led_pwm_r[biaozhi+3]*g_status);
write_single_r(led_pwm_r[biaozhi+3]*b_status);
write_single_r(led_pwm_r[biaozhi+4]*r_status);
write_single_r(led_pwm_r[biaozhi+4]*g_status);
write_single_r(led_pwm_r[biaozhi+4]*b_status);
write_single_r(led_pwm_r[biaozhi+5]*r_status);
write_single_r(led_pwm_r[biaozhi+5]*g_status);
write_single_r(led_pwm_r[biaozhi+5]*b_status);
write_single_r(led_pwm_r[biaozhi+6]*r_status);
write_single_r(led_pwm_r[biaozhi+6]*g_status);
write_single_r(led_pwm_r[biaozhi+6]*b_status);
write_single_r(led_pwm_r[biaozhi+7]*r_status);
write_single_r(led_pwm_r[biaozhi+7]*g_status);
write_single_r(led_pwm_r[biaozhi+7]*b_status);//*(!turn_r_status)+(b_date_r*turn_r_status));
}
for( a = 0; ((a < j)&&(turn_l_status == 0)) ; a++)
{
write_single_l(led_pwm_l[biaozhi+7]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+7]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+7]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+6]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+6]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+6]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+5]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+5]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+5]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+4]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+4]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+4]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+3]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+3]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+3]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+2]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+2]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+2]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+1]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+1]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+1]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+0]*r_status);//*(!turn_l_status)+(r_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+0]*g_status);//*(!turn_l_status)+(g_date_l*turn_l_status));
write_single_l(led_pwm_l[biaozhi+0]*b_status);//*(!turn_l_status)+(b_date_l*turn_l_status));
}
EnableInterrupt;
//biaozhi ++ ;
//EnableInterrupt;
}
各中断检测：
__interrupt void EXTI_PORTA_IRQHandler(void) //这是闪大灯检测
{
if(brake)
{
_DELAY_(0XFF);
if(brake)
{
brake_off =0;
brake_count = 0;
brake_status = 1;
}
}
if(brake == 0)
{
brake_off =1;
}
}
__interrupt void EXTI_PORTB_IRQHandler(void) //右转向检测
{
if(turn_r)
{
_DELAY_(0XFF);
if(turn_r)
{
turn_r_count = 0;
turn_r_status = 1;
}
}
if(turn_r == 0)
{
turn_r_count = 0;
}
}
__interrupt void EXTI_PORTC_IRQHandler(void) //左转向检测
{
if(turn_l)
{
_DELAY_(0XFF);
if(turn_l)
{
turn_l_count = 0;
turn_l_status = 1;
}
}
if(turn_l == 0)
{
turn_l_count = 0;
}
}
定时器：
__interrupt void TIM4_UPD_OVF_IRQHandler(void)
{
TIM4_SR &=~(0x01); //清除T4 OVP更新OVP标志
TIM4_CNTR=0;
tim4_count ++;
if(send_status == 0)
{
send_fq ++;
if(send_fq == 100)
{
send_fq = 0;
b ++ ;
if( b >= 8)
{
b = 0;
}
send_status = 1;
}
}
if(tim4_count == 0Xfff) //颜色变化
{
tim4_count = 0;
color_mode ++;
if( color_mode >= 8)
{
color_mode = 1;
}
}
if(turn_l_status == 1) //左转向1.5秒延时
{
if(turn_l)
{
turn_l_count = 0;
}
turn_l_count ++;
if(turn_l_count == 500)
{
turn_l_count = 0;
turn_l_status = 0;
}
}
if(turn_r_status == 1) //右转向1.5秒延时
{
if(turn_r)
{
turn_r_count = 0;
}
turn_r_count ++;
if(turn_r_count == 500)
{
turn_r_count = 0;
turn_r_status = 0;
}
}
if(brake_status == 1) //闪大灯检测处理
{
brake_count ++;
if(brake_count == 1000)
{
brake_status = 0;
}
}
if(brake_off == 1)
{
if(brake_count <=200)
{
brake_count = 0;
mode++;
if(mode==3)
{
mode = 1;
}
}
else
{
brake_count = 0;
}
brake_off = 0;
}
}
这样的代码写进去，会有卡顿现象出现
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