Posted on June 12, 2018 at 15:09At last, this is my simple, tested, final solution:
/*
Using the STM8L001J3, 96bit
UNIQUE_ID, calculate a unique 24 bit serial number for the remote control:
Input : UNIQUE_ID[]
= 12 bytes Micro ID Buffer
Output : SERIAL_NUM
= Unique 24 bit of remote serial number
TELE_FRAME_BUF[] = Compile the first three fields of remote control frame to transmit
*/
void
CALC_SERIAL_NUM(
void
)
{
uint8_t inx;
uint32_t Serial_1,Serial_2;
// Leggi MCU UNIQUE_ID
#pragma asm
ldw x,#
11
L1:
ld a,($
4925
,x)
ld (_UNIQUE_ID_BUF,x),a
decw x
jrsge L1
#pragma endasm
//-----------------------
for
(inx=
0
; inx<
4
; inx++)
{
Serial_1 += UNIQUE_ID_BUF[inx];
Serial_1 <<=
8
;
}
for
(inx=
4
; inx<
8
; inx++)
{
Serial_2 += UNIQUE_ID_BUF[inx];
Serial_2 <<=
8
;
}
Serial_1 += Serial_2;
for
(inx=
8
; inx<
12
; inx++)
{
Serial_1 += UNIQUE_ID_BUF[inx];
}
//--------------------------------------
SERIAL_NUM
= Serial_1;
Serial_1 >>=
24
;
SERIAL_NUM &=
0xFFFFFF
;
SERIAL_NUM += Serial_1;
TELE_FRAME_BUF[
0
] = (uint8_t) ((SERIAL_NUM &
0xFF0000
) >>
16
);
TELE_FRAME_BUF[
1
] = (uint8_t) ((SERIAL_NUM &
0x00FF00
) >>
8
);
TELE_FRAME_BUF[
2
] = (uint8_t) (SERIAL_NUM &
0x0000FF
);
}
