MSP430/Backlight project - Revision history

Heth at 09:08, 16 March 2014

2014-03-16T09:08:07Z

2014-03-16T08:54:22Z

2014-03-15T11:52:54Z

2014-03-15T10:49:43Z

2014-03-15T10:45:48Z

2014-03-15T10:44:09Z

2014-03-15T10:43:51Z

2014-03-15T10:43:44Z

2014-03-15T10:42:03Z

2014-03-15T10:40:08Z

@@ Line 72: / Line 72: @@
                  ;;;;;;;TACCTL0 configuration
-		;XXXX XXX0 XXX0 XXXX    ( X = dont care )
+		;XXXX XXX0 1000 XXXX    ( X = dont care )
-		;        |    |-------> CCIE: 0 = Interrupt Disabled
+		;        | ||||-------> CCIE: 0 = Interrupt Disabled
 		;        |------------> CAP: Capture/compare mode. 0 = Compare
-                 MOV.W   #011010001000000b, &TACCTL0
+                 MOV.W   #0000000010000000b, &TACCTL0
                  ;;;;;;;TACTL configuration

@@ Line 68: / Line 68: @@
 ;;;;;Initialize Timer A
-TIMAINIT:       MOV.W   #1023, &TACCR0
+TIMAINIT:       ; TAC counts to 1023 because ADC converts from 0 to 1023
                  MOV.W   #011010001000000b, &TACCTL0
                  MOV.W   #0000001011010000b, &TACTL ; Side 370 i family - Divide by 8
                  MOV.W   #011010001000000b, &TACCTL1
                  BIS.B   #01000000b, &P1DIR         ; Side 49 i data sheet

@@ Line 70: / Line 70: @@
 TIMAINIT:       MOV.W   #1023, &TACCR0
                  MOV.W   #011010001000000b, &TACCTL0
-                 MOV.W   #0000001011010000b, &TACTL ; Side 370 i family /1
+                 MOV.W   #0000001011010000b, &TACTL ; Side 370 i family - Divide by 8
                  MOV.W   #011010001000000b, &TACCTL1
                  BIS.B   #01000000b, &P1DIR         ; Side 49 i data sheet

@@ Line 68: / Line 68: @@
 ;;;;;Initialize Timer A
-TIMAINIT:       MOV.W   #1000, &TACCR0
+TIMAINIT:       MOV.W   #1023, &TACCR0
                  MOV.W   #011010001000000b, &TACCTL0
                  MOV.W   #0000001011010000b, &TACTL ; Side 370 i family /1
                  MOV.W   #011010001000000b, &TACCTL1
                  BIS.B   #01000000b, &P1DIR         ; Side 49 i data sheet
                  BIS.B   #01000000b, &P1SEL

@@ Line 16: / Line 16: @@
 ; Caveats....: Needs to be commented in more detail!
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-MOV10SCR1
 ;;;;;RAM setup
 RAMSTART        EQU             0x0200          ; RAM start

← Older revision		Revision as of 10:42, 15 March 2014
Line 66:		Line 66:

	Loop: jmp Loop ; Your application here !!!		Loop: jmp Loop ; Your application here !!!
−
−
−	~~ClrRAM MOV.W #RAMSTART,R6 ; Start of RAM~~
−	~~MOV.W #RAMSIZE-2,R7 ; Size of RAM in bytes - 2 for return address~~
−	~~ClrRAM$1 MOV.B #00, 0(R6)~~
−	~~INC.W R6~~
−	~~DEC.W R7~~
−	~~JNZ ClrRAM$1~~
−	~~RET~~

	;;;;;Initialize Timer A		;;;;;Initialize Timer A

@@ Line 1: / Line 1: @@
 The following code works but need to be documented properly.
-<source lang=asm>
+<source lang=asm430>
 ; Purpose....: Variable backlight connected to MSP430G2553
 ;              P1.6 (Green led on LaunchPad)