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;//Look for the first Packet (SEQ=0001)
push regTemp ;//Save temp to stack (we need
to destroy it because we want to filter sequence number)
andi regTemp, 0b11110000 ;//Filter sequence number
cpi regTemp,0b00010000 ;//Check if sequence number is 0001
(first packet)
pop regTemp ;//Restore temp (we had to destroy it because we
wanted to filter out the sequence number)
breq intReciveByteFromUart_storebyte_1 ;//Store byte
rjmp intReciveByteFromUart_cancel_1 ;//Cancel if the sequence number does not fit.
intReciveByteFromUart_storebyte_1: ;//The packet was for us, we will store it
push regTemp ;//Save temp to stack (we need
to destroy it because we want to filter data)
andi regTemp, 0b00001111 ;//Ok, the packet fits, lets forget the
sequence number
andi regLowerValueByte, 0b11110000 ;//Forget the old halfbyte value in data
register
add regLowerValueByte, regTemp ;//Update halfbyte
pop regTemp ;//Restore temp (we had to destroy it because we
wanted to filter data)
intReciveByteFromUart_cancel_1: ;//The packet was not for us, do
nothing and continue.
;//Look for the sacond Packet (SEQ=0010)
push regTemp ;//Save temp to stack (we need
to destroy it because we want to filter sequence number)
andi regTemp, 0b11110000 ;//Filter sequence number
cpi regTemp,0b00100000 ;//Check if sequence number is 0010
(sacond packet)
pop regTemp ;//Restore temp (we had to destroy it because we
wanted to filter out the sequence number)
breq intReciveByteFromUart_storebyte_2 ;//Store byte
rjmp intReciveByteFromUart_cancel_2 ;//Cancel if the sequence number does not fit.
intReciveByteFromUart_storebyte_2: ;//The packet was for us, we will store it
push regTemp ;//Save temp to stack (we need
to destroy it because we want to filter data)
andi regTemp, 0b00001111 ;//Ok, the packet fits, lets forget the
sequence number
andi regLowerValueByte, 0b00001111 ;//Forget the old halfbyte value in data
register
rol regTemp ;//Rotate value until it fits...
rol regTemp ;//Rotate value until it fits...
rol regTemp ;//Rotate value until it fits...
rol regTemp ;//Rotate value until it fits...
add regLowerValueByte, regTemp ;//Update halfbyte
pop regTemp ;//Restore temp (we had to destroy it because we
wanted to filter data)
intReciveByteFromUart_cancel_2: ;//The packet was not for us, do
nothing and continue.
;//Look for the third Packet (SEQ=0011)
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