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HD44780 update:

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- howto updated
- input pin readout reversed
- 4bit and serialLpt init timing modified
This commit is contained in:
robijn
2002-02-22 01:13:24 +00:00
parent fc92898174
commit b3e1506ffa
6 changed files with 73 additions and 31 deletions
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server/drivers/hd44780-winamp.c
+6 -2
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@@ -186,6 +186,10 @@ unsigned char lcdwinamp_HD44780_readkeypad (PrivateData *p, unsigned int YData)
// Set output back to idle state for backlight
port_out (p->port + 2, p->backlight_bit ^ OUTMASK );
// And convert value back.
return ( (readval >> 4 & 0x03) | (readval >> 5 & 0x04) | (readval >> 3 & 0x08) | (readval << 1 & 0x10) ) & ~p->stuckinputs;
// And convert value back (MSB first).
return (((readval & FAULT) / FAULT <<4) | /* pin 15 */
((readval & SELIN) / SELIN <<3) | /* pin 13 */
((readval & PAPEREND) / PAPEREND <<2) | /* pin 12 */
((readval & BUSY) / BUSY <<1) | /* pin 11 */
((readval & ACK) / ACK )) & ~p->stuckinputs; /* pin 10 */
}