HX711 assembler AVR atmega16 how to make code?

Thread Starter

salova322

Joined Oct 8, 2017
1
Hello, I'm trying to make code for atmega16 in assembler reading data from the ADC to registers.
Is this code working and what needs to be changed?
PORTA,0 - data
PORTA,1 - clk

.include "m16def.inc"
.device ATmega16
.org 0x00

ldi r23,low(0x045f)
out SPL,r23
ldi r23,high(0x045f)
out SPH,r23

ldi r16,0b00000010
out DDRA,r16

ldi r16,0b00000001
out PORTA,r16

ldi r16,0

c:
sbic PINA,0
rjmp c



cyc:
sbi PORTA,1
nop
cbi PORTA,1

sbic PINA,0
jmp tt
jmp tt0

tt:
sbr r29,1
jmp za

tt0:
cbr r29,1
jmp za

za:
cpi r16,7
breq tt1
cpi r16,15
breq tt2
cpi r16,23
breq loop
lsl r29
inc r16
jmp cyc

tt1:
mov r27,r29
inc r16
jmp cyc

tt2:
mov r28,r29
inc r16
jmp cyc

loop:

rjmp loop
 
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