Ich habe eine hexadecimal addresse ABCD1234.Wie kann ich es reverse bekommen.Configuration website von ethernet zeigt 0x3412CDAB(Die werte von diese hexadecimal addresse wird von miso auf signal tap gelesen)aber,webseite muss genauso wie ABCD1234 zeigen.Wie kann ich es machen(Besser wäre wenn jemanden auf englisch erklärt)
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What programming language ? Genral idea: Write into array in one direction, read from it in the other direction....
You generate a website with VHDL ? Maybe give some further explanation how the data is transfered from the SPI-Interface (judging from the signal-name miso) to the website...
i dont generate website with vhdl.Instead i have a embedded system board with FPGA in it to which transfer takes place.However,there is a website of the entire board(ethernet)(It has even microcontroller and like i said,FPGA as well)...From the website FPGA is triggered and we get the hexadecimal address
Max D. schrieb: > What programming language ? > Genral idea: Write into array in one direction, read from it in the > other direction.... ;-) das ist eine gute idee! auf sowas einfaches bin ich noch gar nicht gekommen ;-) und werde es zukünftig so machen bei MSB / LSB txs ..
.. schrieb: > Max D. schrieb: >> What programming language ? >> Genral idea: Write into array in one direction, read from it in the >> other direction.... > > ;-) das ist eine gute idee! > auf sowas einfaches bin ich noch gar nicht gekommen ;-) > und werde es zukünftig so machen bei MSB / LSB > > txs > .. Danke für die Lorbeeren :) Is halt der übliche deal Speicher gegen Laufzeit puka1012 schrieb: > (It has even microcontroller and like i > said,FPGA as well) I have very little knowledge of VHDL (and programmable logic in general), therefore my approach would be to do the adjustment inside the µC on the Board. The way the data looks suggests to me, that the endianess of the two SPI-Devices doesn't match...
You just have to swap byte 1 and 2, and byte 3 and 4. Then you have to swap the to words. How you do this depends on how you store the data (eg std_logic_vector, signed, integer...)
1 | function swapbytes(din:std_logic_vector(31 downto 0)) return std_logic_vector is |
2 | begin
|
3 | return din(7 downto 0) & din(15 downto 8) & din(23 downto 16) & din(31 downto 24); |
4 | end function; |
Max D. schrieb: > Is halt der übliche deal Speicher gegen Laufzeit Blödsinn. Der Swap kostet Dich rein gar nichts. Die Drähte zwischen Quelle (dort wo die Adresse herkommt) und Senke (dort wo die Adresse benötigt wird) liegen einfach anders...
Achim S. schrieb: > function swapbytes Das kann man auch ganz ohne Funktion schreiben, wenn man es nur einmal braucht... puka1012 schrieb: > However,there is a website ... for English written posts: https://embdev.net/forum/fpga-vhdl-verilog This here is the German forum!
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Lothar M. schrieb: >> However,there is a website > ... for English written posts: > https://embdev.net/forum/fpga-vhdl-verilog > This here is the German forum! You mean German-speaking ?! Or Germany's citizens? Mit Gruß,
Werktätiger schrieb: > You mean German-speaking ?! Or Germany's citizens? Of course Lothar means German speaking. Here in the forum, everyone is welcome.
I wrote "written" instead of "spoken", but my intention should be fairly clear: You can reside in any part of the world and speak any language. But here (mikrocontroller.net) you should write German and there (embdev.net) you should write English...
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