[Lcdproc] LEDs on CFA-635 20x4 6buttons

[Randy Hammock]

On Fri, 2006-09-15 at 17:16 +0200, Peter Marschall wrote:
> Hi,
> 
> On Friday, 15. September 2006 13:47, RavensWorld@gmx.de wrote:
> > Is there a possiblity to control the LEDs on the CFA-635
> > or is there an implemnetation for the drivers/LCDd?
> > What is the default status of the LEDs (green/red)?

Here is an example of code controlling the LEDs on a CFA-635. This code
segment is from a Ham Radio VoIP station monitor. The important parts
are the setting og the led variable. The led |= is used to turn LEDs ON
and the led &= is used to turn LEDs OFF.

//------------------------------------------------------------
// Use LEDs to display various status': PTT, AUX1, COS, DTMF
//------------------------------------------------------------
// The top LED is used for PTT and COS activity.
//   COS Active (radio is receiving) is indicated by GREEN;
//   PTT Active (radio is transmitting) is indicated by RED;
//   IF node is full-duplex capable, simultaneous COS and PTT
//   active is indicated by the top LED being YELLOW.
if ((status & PTT)||(status & AUX1))    // Test PTT/AUX1 activity
   led |= 0x10;                         // PTT/AUX1 Active
else
   led &= 0xEF;                         // PTT/AUX1 Inactive
if (status & COS)                       // Test COS activity
   led |= 0x01;                         // COS Active
else
   led &= 0xFE;                         // COS Inactive
// The second from top LED is used for DTMF activity.
//   DTMF Active is indicated by YELLOW (RED and GREEN ON)
if ((status >> 3) & 0x000f)             // Test DTMF activity
   led |= 0x22;                         // DTMF Active
else
   led &= 0xDD;                         // DTMF Inactive
sprintf (buffer, "output %d\n", led);
sock_send_string (sock, buffer);        // Set LED Display

> IIRC I coded the output routine for the CFA-635 so that the LED can be 
> controlled using calls of the output function.
> 
> On my CFA635 they are off right now. Since I did not do anything fancy
> with the LCD I guess this is the default (I'm too lazy to look into the 
> code ;-)
> 
> Peter
> 
-- 
Randy Hammock KC6HUR
IRLP 4494  EchoLink 120688 (KC6HUR-L)
http://kc6hur.net 
http://irlp.kc6hur.net