Changeset e69146a in avrstuff

Timestamp:

Jan 15, 2012, 9:05:03 AM (12 years ago)

Author:

Adrien Destugues <pulkomandy@…>

Branches:

main

Children:

3c17057

Parents:

e07597b

Message:

• Generate MSb first.
• WORKING FILE HEADER SENT !

git-svn-id: ​svn://pulkomandy.tk/avrstuff@53 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe

File:

• V-USB_Dev/firmwares/CrO2/main.c (modified) (4 diffs)

V-USB_Dev/firmwares/CrO2/main.c

@@ -32 +32 @@
 
         bit = 1;
-        bitpos = 0;
+        bitpos = 7;
         readPos = 0;
 
@@ -73 +73 @@
         // CTC mode with OCR1A as MAXregister
         TCCR1B = (1<<WGM12);
-        OCR1A = 12800; // 800us bit clock
-        OCR1B = 6400; // Half-clock for 1 bits
+        OCR1A = 13063; // 800us bit clock
+        OCR1B = 6532; // Half-clock for 1 bits
         TIMSK = (1 << OCIE1B) | (1 << OCIE1A); // interrupts on both timer matches.
         TCCR1A |= (bit << FOC1A); // Force toggle of A (make sure output is a logic 1 to allow MO5 to detect tapedrive)
@@ -134 +134 @@
                 TCCR1A &= ~(1<<COM1A1);
                 TCCR1B |= (1<<CS10);
+                blksz = 35;
                 return 1;
         } else {
@@ -147 +148 @@
         // generate next bit
         bit = (ioblock[readPos] >> bitpos) & 1;
-        bitpos++;
-        if (bitpos > 7)
+        bitpos--;
+        if (bitpos > 7) // overflow ?
         {
-                bitpos = 0;
+                bitpos = 7;
                 readPos++;
                 if (readPos > blksz)