求助大大12864程序问题

richard.lin

我要在LCM上显示HZ[]里的字，编译器确定无误，硬体脚位确认无误

由可變電阻調整亮光度,但LCM上無顯示HZ[]裡面的字,想請問各位大大是程序裡面哪邊有誤嗎?

所使用LCM的為optima ,型號:OG12864BEYHV

[mw_shl_code=c,true]=====================main.c=================== #include "stm32f10x.h" #include "stm32f10x_gpio.h" #include "stm32f10x_rcc.h" #include "stm32f10x_flash.h" #include "misc.h" #include "lcm.h" int main(void) { LCM_Init(); LCM_User_CN(0, 0, 0); LCM_User_CN(1, 0, 1); LCM_User_CN(2, 0, 0); while (1) ; } =====================LCM.h==================== #ifndef _LCM_H_ #define _LCM_H_ #include "stm32f10x.h" #include "stm32f10x_gpio.h" #define DB0 GPIO_Pin_3 #define DB1 GPIO_Pin_4 #define DB2 GPIO_Pin_5 #define DB3 GPIO_Pin_6 #define DB4 GPIO_Pin_7 #define DB5 GPIO_Pin_8 #define DB6 GPIO_Pin_9 #define DB7 GPIO_Pin_10 #define DATA_PORT GPIOA #define CS1 GPIO_Pin_5 #define CS2 GPIO_Pin_6 #define DI GPIO_Pin_8 #define E GPIO_Pin_9 #define CONTROL_PORT GPIOB #define RW GPIO_Pin_0 #define RST GPIO_Pin_1 #define READ_PORT GPIOA #define DI_H GPIO_SetBits(CONTROL_PORT,DI) #define DI_L GPIO_ResetBits(CONTROL_PORT,DI) #define E_H GPIO_SetBits(CONTROL_PORT,E) #define E_L GPIO_ResetBits(CONTROL_PORT,E) #define CS1_H GPIO_SetBits(CONTROL_PORT,CS1) #define CS1_L GPIO_ResetBits(CONTROL_PORT,CS1) #define CS2_H GPIO_SetBits(CONTROL_PORT,CS2) #define CS2_L GPIO_ResetBits(CONTROL_PORT,CS2) #define RW_H GPIO_SetBits(READ_PORT,RW) #define RW_L GPIO_ResetBits(READ_PORT,RW) #define RST_H GPIO_SetBits(READ_PORT,RST) #define RST_L GPIO_ResetBits(READ_PORT,RST) #define WRITE_DATA(DDAT) GPIO_Write(DATA_PORT,DDAT) #define READ_DATA GPIO_ReadInputData(DATA_PORT) void LCM_Delay(unsigned int uiTime); void LCM_Busy(void); void LCM_Reset(void); void LCM_Clear(unsigned char ucData); void LCM_Write(unsigned char ucDAT_or_CMD, unsigned char ucLeft_or_Right,unsigned char ucData); void LCM_Write_Screan(char x, char y, unsigned char ucData); void LCM_Switch(unsigned char ucSwitch); void LCM_Init(void); void LCM_User_CN(unsigned char ucRow, unsigned char ucColumn,unsigned char ucChn); #endif ======================LCM.c============================== #include "stm32f10x.h" #include "stm32f10x_gpio.h" #include "stm32f10x_rcc.h" #include "stm32f10x_flash.h" #include "misc.h" #include "lcm.h" unsigned char HZ[] = { 0x40, 0x40, 0x40, 0x40, 0x20, 0x42, 0x20, 0x42, 0x50, 0x4A, 0x48, 0x72, 0x44, 0x42, 0xC3, 0x7F, 0x44, 0x42, 0x48, 0x62, 0x50, 0x5A, 0x50, 0x42, 0x20, 0x42, 0x60, 0x40, 0x20, 0x40, 0x00, 0x00,/*"踢",0*/ 0x00, 0x00, 0xFE, 0xFF, 0x22, 0x02, 0x5A, 0x04, 0x86, 0x43, 0x10, 0x48, 0x94, 0x24, 0x74, 0x22, 0x94, 0x15, 0x1F, 0x09, 0x34, 0x15, 0x54, 0x23, 0x94, 0x60, 0x94, 0xC0, 0x10, 0x40, 0x00, 0x00, /*"鍬",1*/ }; enum LCM_CMD_DAT { cmd, dat } LCM_CMD,LCM_DAT; enum LCM_LEFT_RIGHT { left, right } LCM_LEFT,LCM_RIGHT; enum LCM_OFF_ON { off, on } LCM_OFF, LCM_ON; void LCM_GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = DB0 | DB1 | DB2 | DB3 | DB4 | DB5 | DB6 | DB7; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(DATA_PORT, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = DI | E | CS1 | CS2; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(CONTROL_PORT, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = RW | RST; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(READ_PORT, &GPIO_InitStructure); } void LCM_Delay(unsigned int uiTime) { unsigned short int i, j; for (i = 0; i < uiTime; i++) for (j = 0; j < 10; j++) ; } void LCM_Reset(void) { RST_L; LCM_Delay(500); RST_H; LCM_Delay(500); } void LCM_Busy(void) { DI_L; //di=0; RW_H; //rw=1; LCM_Delay(100); } void LCM_Write(unsigned char ucDAT_or_CMD, unsigned char ucLeft_or_Right, unsigned char ucData) { u16 temp; if (ucDAT_or_CMD == LCM_DAT) //dat { if (ucLeft_or_Right == LCM_LEFT) //left { CS1_H; //cs1=1; CS2_L; //cs2=0; } else //right { CS1_L; //cs1=0; CS2_H; //cs2=1; } LCM_Delay(10); LCM_Busy(); DI_H; //di=1; RW_L; //rw=0; } else //cmd { CS1_H; //cs1=1; CS2_H; //cs2=1; LCM_Delay(10); LCM_Busy(); RW_L; //rw=0; DI_L; //di=0; } LCM_Delay(10); temp = ucData; temp = temp << 8; WRITE_DATA(temp); //lcm=a; LCM_Delay(10); E_H; //e=1; LCM_Delay(10); E_L; //e=0; LCM_Delay(10); } void LCM_Write_Screan(char x, char y, unsigned char ucData) { if (x >= 64) { x = x - 64; x = x + 0x40; y = y + 0xb8; LCM_Write(LCM_CMD, 0, x); LCM_Write(LCM_CMD, 0, y); LCM_Write(LCM_DAT, LCM_RIGHT, ucData); } else { x = x + 0x40; y = y + 0xb8; LCM_Write(LCM_CMD, 0, x); LCM_Write(LCM_CMD, 0, y); LCM_Write(LCM_DAT, LCM_LEFT, ucData); } } void LCM_Clear(unsigned char ucData) { unsigned char x, y; for (y = 0; y < 8; y++) { for (x = 0; x < 128; x++) { LCM_Write_Screan(x, y, ucData); } } } void LCM_Switch(unsigned char ucSwitch) { ucSwitch = ucSwitch + 0x3e; LCM_Write(LCM_CMD, 0, ucSwitch); } void LCM_Init(void) { LCM_CMD = cmd; LCM_DAT = dat; LCM_LEFT = left; LCM_RIGHT = right; LCM_OFF = off; LCM_ON = on; LCM_GPIO_Configuration(); LCM_Reset(); LCM_Switch(LCM_OFF); LCM_Clear(0); LCM_Switch(LCM_ON); LCM_Write(LCM_CMD, 0, 0xc0); } void LCM_User_CN(unsigned char ucRow, unsigned char ucColumn, unsigned char ucChn) { int i, dx; for (i = 0; i < 16; i++) { dx = HZ[2 * i + ucChn * 32]; LCM_Write_Screan(ucRow * 16 + i, ucColumn, dx); dx = HZ[(2 * i + 1) + ucChn * 32]; LCM_Write_Screan(ucRow * 16 + i, ucColumn + 1, dx); } } [/mw_shl_code]

正点原子

回复【楼主位】richard.lin:
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这样不好看啊。
楼主画点函数搞定了么？
显示字符是否成功了？

richard.lin

程序compiler都無錯誤,但是LCM裡面卻都無顯示任何字符,不知是程序哪裡有少漏打,或者是程序哪裡有錯誤?

拜托原子大大帮忙解决

正点原子

回复【3楼】richard.lin:
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这，你先搞出来显示字符先。
你这种12864,我也没整过哦。。。

zhp

对，先用最最简单的例程把硬件调通，比如在屏幕任意位置画一个点或者简单字符看行不行，如果这个都有问题就先好好检查硬件是否正确，没问题了再调试更复杂的东西，调试有时候是个很锻炼能力的过程，一般过程是先调通硬件，再调软件，确保每一条硬件道路都是通的，再不断的丰富软件，循序渐进。

八度空间

回复【楼主位】richard.lin:
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楼主的判断忙信号那个函数好像有问题喔，你只改变了控制线的电平，但是LCM返回来的数据你没读进来判断，怎么知道LCM在忙还是在空闲状态呢？如果你不读取LCM返回的数据，直接就delay多少时间跳过即可，连控制线的电平都不用改变，接着发数据

richard.lin

我在忙信号有做更改，萤幕上还是无显示任何字符

void LCM_Busy(void)
{    
    GPIO_InitTypeDef GPIO_InitStructure; 
    u8 temp=0; 
     
    DI_L;  // DI =0 指令 
    RW_H;    // RW =1  读模式 
     
    // 第7位读状态 
    //GPIO_InitStructure.GPIO_Pin = DB7; 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; 
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
    GPIO_Init(DATA_PORT, &GPIO_InitStructure); 
    LCM_Delay(1); 
    do{ 
        E_H;
        LCM_Delay(1); 
        temp = GPIO_ReadInputDataBit(DATA_PORT, DB7);
        E_L; 
        LCM_Delay(1);            
    }while(temp);//等待不忙 
  E_L;   
  //--------把D7 设为输出
  //GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
  GPIO_Init(DATA_PORT, &GPIO_InitStructure); 
  LCM_Delay(1);    
}

正点原子

回复【7楼】richard.lin:
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调解下对比度试试,我记得以前用1602的时候,早就可以显示了,只是对比度太低了,直接就显示不出来,郁闷死了....

richard.lin

原子大大,對比度調整我有用可變電阻調整,已調整為可顯示狀態,但是液晶裡面還是沒顯示程式裡的字符

正点原子

回复【9楼】richard.lin:
---------------------------------
那你还得检查代码，呵呵

zhaofy521

程序这么长，很少有人看吧。
接上楼，先把对比度确认无误了再说
12864对比度其实很有调头啊，背板上有很多是要我们选择配置的，这个还是仔细对着手册一步一步来。
电源3V还是5V，内带不带倍压，串口还是并口通信，是否要外接电阻调对比度啥的，先仔细看看手册，保证硬件没问题