{"id":898,"date":"2015-11-09T09:41:25","date_gmt":"2015-11-09T09:41:25","guid":{"rendered":"http:\/\/coolt.ch\/notizen\/?p=898"},"modified":"2015-11-09T10:18:45","modified_gmt":"2015-11-09T10:18:45","slug":"vhdl-and","status":"publish","type":"post","link":"https:\/\/coolt.ch\/notizen\/vhdl-and\/","title":{"rendered":"VHDL: AND, &, +"},"content":{"rendered":"

Was ist der Unterschied dieser Zeichen?<\/p>\n

&: vektor zusammensetzen<\/strong><\/p>\n

\n
\n
s_midi <= s_tone_on &<\/strong> s_note_value &<\/strong> s_velocity;<\/pre>\n
– geht nur f\u00fcr std_logic;
\n.<\/p>\n<\/div>\n<\/div>\n
AND: logisch zusammenz\u00e4hlen<\/strong>
\nDas AND folgt der Logik des Gatters AND:
\nNur zwei ‚1‘ geben eine ‚1‘, alles andere gibt eine ‚0‘;<\/p>\n
s_result = s_enable and<\/strong> s_bit_input;<\/pre>\n
– geht nur f\u00fcr std_logic;
\n– ist \u00fcblich f\u00fcr Signal-Logik und Takt-Logik<\/p>\n
if (strobe_i = '1' and<\/strong> clk_intern = '0') then\r\n.      \/\/ do<\/pre>\n
.
\n+: normal z\u00e4hlen<\/strong>
\n– geht nur f\u00fcr unsigned, integer, natural<\/a><\/p>\n
signal index:  integer<\/strong> range 0 to 15  := 0;\r\nsignal offset: integer range 0 to 255 := 100;\r\n\r\nindex  <=  to_integer<\/strong>(s_midi(7 downto 4));\r\nnew_index = index +<\/strong> 4;\r\n\r\naddr <= index +<\/strong> offset;<\/pre>\n
– ist bei Z\u00e4hlern \u00fcblich<\/p>\n
next_cnt <= cnt + 1;<\/pre>\n
..<\/p>\n","protected":false},"excerpt":{"rendered":"
Was ist der Unterschied dieser Zeichen? &: vektor zusammensetzen s_midi <= s_tone_on & s_note_value & s_velocity; – geht nur f\u00fcr std_logic; . AND: logisch zusammenz\u00e4hlen Das AND folgt der Logik des Gatters AND: Nur zwei ‚1‘ geben eine ‚1‘, alles andere gibt eine ‚0‘; s_result = s_enable and s_bit_input; – geht nur f\u00fcr std_logic; – … VHDL: AND, &, +<\/span> weiterlesen<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[59],"tags":[11],"_links":{"self":[{"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/posts\/898"}],"collection":[{"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/comments?post=898"}],"version-history":[{"count":4,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/posts\/898\/revisions"}],"predecessor-version":[{"id":913,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/posts\/898\/revisions\/913"}],"wp:attachment":[{"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/media?parent=898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/categories?post=898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coolt.ch\/notizen\/wp-json\/wp\/v2\/tags?post=898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}