用ccs编程一个关于小车跟随系统的msp430f5529的代码
时间: 2023-06-20 22:06:20 浏览: 126
小车跟随系统需要用到一些传感器,比如红外线传感器或者超声波传感器来检测障碍物和跟随线路。这里假设你使用红外线传感器来进行线路跟随。以下是基于MSP430F5529的小车跟随系统代码:
```c
#include <msp430.h>
#define LEFT_MOTOR_FORWARD BIT1
#define LEFT_MOTOR_REVERSE BIT2
#define RIGHT_MOTOR_FORWARD BIT3
#define RIGHT_MOTOR_REVERSE BIT4
#define IR_SENSOR_LEFT BIT0
#define IR_SENSOR_MIDDLE BIT1
#define IR_SENSOR_RIGHT BIT2
void motor_init()
{
P2DIR |= LEFT_MOTOR_FORWARD | LEFT_MOTOR_REVERSE | RIGHT_MOTOR_FORWARD | RIGHT_MOTOR_REVERSE;
P2OUT &= ~(LEFT_MOTOR_FORWARD | LEFT_MOTOR_REVERSE | RIGHT_MOTOR_FORWARD | RIGHT_MOTOR_REVERSE);
}
void motor_forward()
{
P2OUT |= LEFT_MOTOR_FORWARD | RIGHT_MOTOR_FORWARD;
}
void motor_reverse()
{
P2OUT |= LEFT_MOTOR_REVERSE | RIGHT_MOTOR_REVERSE;
}
void motor_left()
{
P2OUT |= LEFT_MOTOR_REVERSE | RIGHT_MOTOR_FORWARD;
}
void motor_right()
{
P2OUT |= LEFT_MOTOR_FORWARD | RIGHT_MOTOR_REVERSE;
}
void motor_stop()
{
P2OUT &= ~(LEFT_MOTOR_FORWARD | LEFT_MOTOR_REVERSE | RIGHT_MOTOR_FORWARD | RIGHT_MOTOR_REVERSE);
}
void sensor_init()
{
P1DIR &= ~(IR_SENSOR_LEFT | IR_SENSOR_MIDDLE | IR_SENSOR_RIGHT);
P1REN |= IR_SENSOR_LEFT | IR_SENSOR_MIDDLE | IR_SENSOR_RIGHT;
P1OUT &= ~(IR_SENSOR_LEFT | IR_SENSOR_MIDDLE | IR_SENSOR_RIGHT);
}
int main(void)
{
WDTCTL = WDTPW + WDTHOLD; // stop watchdog timer
motor_init();
sensor_init();
while (1)
{
if ((P1IN & IR_SENSOR_MIDDLE) && !(P1IN & IR_SENSOR_LEFT) && !(P1IN & IR_SENSOR_RIGHT))
{
motor_forward();
}
else if ((P1IN & IR_SENSOR_LEFT) && !(P1IN & IR_SENSOR_RIGHT))
{
motor_left();
}
else if ((P1IN & IR_SENSOR_RIGHT) && !(P1IN & IR_SENSOR_LEFT))
{
motor_right();
}
else
{
motor_stop();
}
}
}
```
这个代码使用了P2口的4个引脚控制小车的电机,P1口的3个引脚来读取红外线传感器的信号。当红外线传感器检测到黑色线路时,中间传感器的值为高电平,左右传感器的值为低电平,此时小车前进;当左传感器的值为高电平,右传感器的值为低电平时,小车向左转;当右传感器的值为高电平,左传感器的值为低电平时,小车向右转;当所有传感器的值都为低电平时,小车停止。
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