Epson S1D13505F00A Technical Manual page 204

Embedded ramdac lcd/crt controller
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12: SAMPLE CODE
{
*pTmp = 0xAA;
pTmp++;
}
/*
** Set the first user definable cursor color to black and
** the second user definable cursor color to white.
*/
*(pRegs + 0x2C) = 0;
*(pRegs + 0x2D) = 0;
*(pRegs + 0x2E) = 0xFF;
*(pRegs + 0x2F) = 0xFF;
/*
** Draw a hollow rectangle around the cursor.
*/
pTmp = pCursor;
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
*pTmp = 0x55;
pTmp++;
}
for (lpCnt = 0; lpCnt < 14; lpCnt++)
{
*pTmp = 0x6A;
pTmp += 15;
*pTmp = 0xA9;
pTmp++;
}
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
*pTmp = 0x55;
pTmp++;
}
/*
** Move the cursor to 100, 100.
*/
/*
** First we wait for the next vertical non-display
** period before updating the position registers.
*/
while (*(pRegs + 0x0A) & 0x80);
while (!(*(pRegs + 0x0A) & 0x80));
/*
** Now update the position registers.
*/
*(pRegs + 0x28) = 100;
*(pRegs + 0x29) = 0x00;
*(pRegs + 0x2A) = 100;
*(pRegs + 0x2B) = 0x00;
/*
** Enable the hardware cursor.
*/
*(pRegs + 0x27) = 0x40;
}
}
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/* wait while in VNDP */
/* wait while in VDP */
/* Set Cursor X = 100 */
/* Set Cursor Y = 100 */
EPSON
S1D13505 PROGRAMMING NOTES
AND EXAMPLES (X23A-G-003-05)

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