# define LCD_DELAY 400 # define LCD_PORT P0 # define RS P0_0 # define RW P0_2 # define EN P0_1 bit gbStatus = 0; /* *************************************************************************************** */ void Delay(unsigned int j) { unsigned int i; for(i = 0; i < j ; i++); } /* *************************************************************************************** */ void LcdInitWrite(unsigned char ucCmd) { RW = 0; LCD_PORT = ucCmd; EN = 1; Delay(LCD_DELAY); EN = 0; } /* *************************************************************************************** */ void LcdCmd(unsigned char ucCmd) { unsigned char ucTemp; if(gbStatus) { gbStatus=0; goto NEXT; } NEXT: RW = 0; ucTemp = ucCmd; ucTemp &= 0xf0; LCD_PORT &= 0x0f; LCD_PORT |= ucTemp; ucTemp = (ucCmd << 4); ucTemp &= 0xf0; LCD_PORT &= 0x0f; LCD_PORT |= ucTemp; EN = 1; Delay(LCD_DELAY); EN = 0; } /* *************************************************************************************** */ void LcdData(unsigned char ucData) { gbStatus = 1; RS = 1; LcdCmd(ucData); } /* *************************************************************************************** */ void LcdInit(void) { LcdCmd(0x28); Delay(LCD_DELAY); LcdCmd(4); Delay(LCD_DELAY); LcdCmd(0x85); Delay(LCD_DELAY); LcdCmd(6); Delay(LCD_DELAY); LcdCmd(1); Delay(LCD_DELAY); } /* *************************************************************************************** */ void LcdPuts(unsigned char *ucStr) { unsigned int i; for(i = 0; ucStr[i] !=0 ; i++) LcdData(ucStr[i]); } /* *************************************************************************************** */ void LcdPutc(unsigned char ucCh) { LcdData(ucCh); }
When i am trying to build the hex. i am getting the following errors help.very urgent. Build target 'Target 1' compiling lcd.c... LCD.C(21): error C202: 'P0_2': undefined identifier LCD.C(22): error C202: 'P0': undefined identifier LCD.C(23): error C202: 'P0_1': undefined identifier LCD.C(25): error C202: 'P0_1': undefined identifier LCD.C(40): error C202: 'P0_2': undefined identifier LCD.C(43): error C202: 'P0': undefined identifier LCD.C(44): error C202: 'P0': undefined identifier LCD.C(47): error C202: 'P0': undefined identifier LCD.C(48): error C202: 'P0': undefined identifier LCD.C(49): error C202: 'P0_1': undefined identifier LCD.C(51): error C202: 'P0_1': undefined identifier LCD.C(58): error C202: 'P0_0': undefined identifier Target not created
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