文档仅供参考
{
while ( ( Lcd_Right_Status_Read & 0x80 == 0x80 ;//busy wait Lcd_Right_Command_Write = a; //write command byte }
void Lcd_Data_Left_WR( U8 a {
while ( ( Lcd_Left_Status_Read & 0x80 == 0x80 ;//busy wait Lcd_Left_Data_Write = a; //write data }
void Lcd_Data_Right_WR( U8 a {
while ( ( Lcd_Right_Status_Read & 0x80 == 0x80 ; //busy waitLcd_Right_Data_Write = a; //write data }
void Lcd_Clear( void {
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文档仅供参考
U8 a, b;
for ( a = 0; a < 8; a++ //Clear RAM space of display {
Lcd_Command_Left( 0xb8 | a ; //Set row address of the left half in display area
Lcd_Command_Right( 0xb8 | a ; //Set row address of the left half in display area
Lcd_Command_Left( 0x40 ; //Set tier address of the left half in display area
Lcd_Command_Right( 0x40 ; //Set tier address of the left half in display area
b = 64; while ( b {
Lcd_Data_Left_WR( 0x00 ; //Write 0 on the left half of display area
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文档仅供参考
Lcd_Data_Right_WR( 0x00 ; //Write 0 on the right half of display area.
b = b - 1; } } }
void Lcd_Init( void {
int timeout=30000; //overtime control
Lcd_Command_Left( 0xC0 ; //Set the start row address on the left half
Lcd_Command_Right( 0xC0 ; //Set the start row address on the right half
do {
Lcd_Command_Left( 0x3F ;
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文档仅供参考
timeout--; }
while ( (( Lcd_Left_Status_Read & 0x20 == 0x20 && (timeout!=0 ;//if display and overtiem is not,wait
timeout=30000; do {
Lcd_Command_Right( 0x3F ;//Open the left and right half of display area.
timeout--; }
while ( (( Lcd_Right_Status_Read & 0x20 == 0x20 && (timeout!=0 ;//if display and overtiem is not,wait
}
void Lcd_Display_s( U8* S,uint x,uint y {
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文档仅供参考
U8 a, b; U32 c = 0; if(y<8
for ( a = 2*x; a < 2*x+2; a++ {
Lcd_Command_Left( 0xb8 | a ; Lcd_Command_Left( 0x40+ 8*y ; for ( b = 0; b < 8; b++ {
Lcd_Data_Left_WR( S[c] ;c = c + 1; } } else
for ( a = 2*x; a < 2*x+2; a++ {
Lcd_Command_Right( 0xb8 | a ; Lcd_Command_Right( 0x40+8*(y-8 ;
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ARM嵌入式课程设计
