用苏大KL25z128的LCD_led_kb例程做lcd1602不显示

samplecode · 发表于 2015-7-11 14:41:01

本帖最后由 samplecode 于 2015-7-11 19:28 编辑

这是代码

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lcdl连线重新定义了
//LCD寄存器选择信号引脚
#define LCD_RS_PORT  PORTD       //4
#define LCD_RS    7
//LCD读写信号引脚
#define LCD_RW_PORT  PORTD       //5
#define LCD_RW    6
//LCD读写信号引脚
#define LCD_E_PORT PORTD       //6
#define LCD_E       5

//LCD数据引脚
#define LCD_D0_PORT  PORTC       //7
#define LCD_D0    13
#define LCD_D1_PORT  PORTC       //8
#define LCD_D1    16
#define LCD_D2_PORT  PORTC       //9
#define LCD_D2    17
#define LCD_D3_PORT  PORTC       //10
#define LCD_D3    0
#define LCD_D4_PORT  PORTC       //11
#define LCD_D4    1
#define LCD_D5_PORT  PORTC       //12
#define LCD_D5    2
#define LCD_D6_PORT  PORTC       //13
#define LCD_D6    3
#define LCD_D7_PORT  PORTC       //14
#define LCD_D7    4


main函数改成这样了
int main(void)
{

//1.声明主函数使用的局部变量
      uint_8 * g_DispalyInit;
//2.关总中断
// enter_critical();
//3.初始化底层模块
//LEDInit();                               //LED初始化

// KBInit();                                  //键盘初始化
//4.缓冲区赋值
g_DispalyInit = (uint_8 *)"1";

// tpm_init(TPM0,TPM_CLKSRC_PLL,10000);       //初始化TPM模块，1ms中断一次
uart_init(UART_0,MCGPLL, 9600); //串口0时钟MCGIRCLK(4000Khz)
uart_send_string(UART_0, g_DispalyInit); //串口发送初始化提示
LCDInit();                               //LCD初始化
uart_send_string(UART_0, g_DispalyInit);
//5.开中断
//tpm_enable_int(0);
uart_enable_re_int(UART_0); //使能串口0接收中断
init_critical();
//6.lcd显示初始字符
LCDShow(g_DispalyInit);

//===========================================================================
/* for(;;)
{

}
while(1)
{

         //LCDShow(g_DispalyInit);
         light_init(LIGHT_PORT,LIGHT_PIN_RED,LIGHT_ON);

         //LCDShow(g_DispalyInit);

}*/
//===========================================================================
      return 0;
}

串口没问题，就是不显示。为什么?求解答，我那lcd1602的三号脚接5v了，和这个有关系么？都说要加10k电位器

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