3.22EjemploDRM007 Co..

Source Code
Source Code Files
Wait40us();
// Lower Nibble
PORTA &= 0xF0;
PORTA |= ctrl & 0x0F;
Set_E();
Clear_E();
// puting pin states of the LCD in PORTA pins
if ((ctrl==0x01) || (ctrl==0x02)) WaitMs(2);
Wait40us();
}
return;
/*****************************************************************************\
* void ctrl8LCD(void): Subroutine for sending control bytes to the LCD in 8 *
* bit mode. use this function only to enter 4-bit mode, *
* since the other 4 data pins have no connection *
* *
* Parameters: ctrl. An 8 bit value for different control of the LCD, such as *
* number of lines, blink on or off, etc. *
* *
* Return: None. *
\*****************************************************************************/
void Ctrl8LCD(UBYTE ctrl)
{
PORTA &= 0xF0;
PORTA |= ctrl & 0x0F;
Set_E();
Clear_E();
// puting pin states of the LCD in PORTA pins
}
Wait40us();
return;
/*****************************************************************************\
* void mov_cursor_LCD(UBYTE places, UBYTE dir): subroutine to move the LCD *
* cursor to RIGHT or LEFT the *
* the number of places the user *
* wants specyfied in 'places' *
* *
* Parameters: places. Number of places wanted to move the LCD cursor without *
* affecting any LCD actual message. *
* dir. Direction in which the cursor is to be moved. RIGHT or *
* LEFT. *
* *
* Return: None. *
\*****************************************************************************/
BLDC Motor Control Board for Industrial and Appliance Applications
DRM007
MOTOROLA Source Code 147