Added TDA8444 DAC channels

epics/iocs/ISTTOKrpi/protocols/pcf8591.proto

@@ -19,19 +19,19 @@ rReg {
 # Bits 7 : =0
 
 rConvAdc0 {
-  out ${1} 0;
+  out ${1} 64;
   in  "%02r";
 }
 rConvAdc1 {
-  out ${1} 1;
+  out ${1} 65;
   in  "%02r";
 }
 rConvAdc2 {
-  out ${1} 2;
+  out ${1} 66;
   in  "%02r";
 }
 rConvAdc3 {
-  out ${1} 3;
+  out ${1} 67;
   in  "%02r";
 }
 
@@ -41,4 +41,8 @@ wReg {
   out ${1} "%.1r";
 }
 
+wDac {
+  out ${1} 64 "%.1r";
+}
+