To array of bytes, check this:
https://github.com/fluisgirardi/pascalscada_v0/blob/master/src/scada/crc16utils.pas
There are two routines: one to calculate, another to check if crc16 matches.
Em ter., 25 de out. de 2022 às 08:13, Giuliano Colla via fpc-pascal <
fpc-pascal@lists.freepascal.org>
Il 25/10/22 09:58, Marco Borsari via fpc-pascal ha scritto:
On Tue, 25 Oct 2022 08:30:19 +0200
Bo Berglund via fpc-pascal wrote:
Is there some package or code available somewhere which can calculate the CRC16
value over a byte array of some 1000 bytes?
I couldn't verify the code but it should be relatively close to your
c++ example. Not sure of the width of int type, I supposed it's 16 bits
wide:
function CRC16( crc: Word; buf: PByte; len: Word; Poly:Word=$A001): Word;
var
pos: Word;
i: Word;
begin
for pos:= 0 to len-1
do
Hi,
On 2022-10-25 09:30, Bo Berglund via fpc-pascal wrote:
< snip >
Anyone able to help with FPC implementation?
Take a look here,
https://forum.lazarus.freepascal.org/index.php?topic=54791.0
regards,
--
Dimitrios Chr. Ioannidis
___
fpc-pascal
On Tue, 25 Oct 2022 08:30:19 +0200
Bo Berglund via fpc-pascal wrote:
> Is there some package or code available somewhere which can calculate the
> CRC16
> value over a byte array of some 1000 bytes?
http://www.retroarchive.org/swag/CRC/index.html
--
Simplex sigillum veri
On Tue, 25 Oct 2022 08:30:19 +0200, Bo Berglund via fpc-pascal
wrote:
>I am working on a handler for IoT data from an electricity meter which
>communicates via TTL serial at 115200 baud. It only sends data in packets of
>less than 1 kbytes every 5-10 seconds.
>
>In order to validate the data I
I am working on a handler for IoT data from an electricity meter which
communicates via TTL serial at 115200 baud. It only sends data in packets of
less than 1 kbytes every 5-10 seconds.
In order to validate the data I need to check the CRC16 checksum at the end and
here is where I don't find a
