Change to PIC16LF1933

[rgblamp.git] / adc_random.c

diff --git a/adc_random.c b/adc_random.c
index e5e76940b762538c0a7ff8704d77c65a9e27fc92..133fc86221a7c740eab3fc8de4fa04b15335e3db 100644 (file)
--- a/adc_random.c
+++ b/adc_random.c
@@ -10,21 +10,21 @@
 
 unsigned char adc_random()
 {
-    static bit save_ansa2;
-    static bit save_trisa2;
+    static bit save_ansa0;
+    static bit save_trisa0;
     unsigned char accumulate = 0;
 
     /* Turn on the FVR, configured for 1.024V to the ADC */
     FVRCON = 0b10000001;
     while (!FVRRDY); /* wait for ready signal */
 
-    /* Configure RA2 (AN2) for ADC input */
-    save_ansa2 = ANSA2;
-    ANSA2 = 1;
-    save_trisa2 = TRISA2;
-    TRISA2 = 1;
+    /* Configure RA0 (AN0) for ADC input */
+    save_ansa0 = ANSA0;
+    ANSA0 = 1;
+    save_trisa0 = TRISA0;
+    TRISA0 = 1;
     ADCON1 = 0b11110011; /* Right justified result, Frc clk, FVR/Vss refs */
-    ADCON0 = 0b00001001; /* Enable channel AN2, enable ADC */
+    ADCON0 = 0b00000001; /* Enable channel AN0, enable ADC */
 
     /* Sample the ADC several times, accumulating the LSB of the result */
     for (unsigned i = 0; i < 128; i++) {
@@ -37,8 +37,8 @@ unsigned char adc_random()
     /* Turn off ADC, FVR, and revert PORTA changes */
     ADON = 0;
     FVREN = 0;
-    TRISA2 = save_trisa2;
-    ANSA2 = save_ansa2;
+    TRISA0 = save_trisa0;
+    ANSA0 = save_ansa0;
 
     /* Return the result */
     return accumulate;