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avr-assembly-play
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Modified a wrong explaination

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lucic71 2020-06-03 16:49:09 +03:00
parent 135f785aab
commit 48687a9498
1 changed files with 8 additions and 2 deletions
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10
hello_world/hello_world.s
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@ -36,9 +36,15 @@ MAIN:
ldi r16, hi8(RAMEND)
out SPH, r16
; Set port bits to output mode. We will use LED 5, so we need to set the fifth bit
; in DDRB (Data Direction Register B). Check this link for more details:
; Set port bits to output mode. We will use BUILTIN_LED, so we need to set
; the fifth bit in DDRB (Data Direction Register B). Check this link for
; more details:
; https://web.ics.purdue.edu/~jricha14/Port_Stuff/PortB_general.htm [3]
;
; Also an important thing to note is that PORTB handles digital PINs from
; 8 to 13 so by setting the fifth bit of DDRB actually sets PIN 13 for
; output:
; https://www.arduino.cc/en/Reference/PortManipulation
ldi r16, 0x20
out DDRB, r16