Differences

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--- icid [2022/01/27 14:02] – [database] kingkevin
+++ icid [2022/01/27 14:11] – [searching] file formats kingkevin
@@ Line 26: / Line 26: @@
 Here are a couple of tips to improve the search results.
-First select the file type. since parts can be described by different models (file types), you might have duplicate parts in the final list:
+First select the file type. since parts can be described by different file types, you might have duplicate parts in the final list:
-  * if you are looking for a micro-controller which supports JTAG, select only the BSDL file type. This already remove a lot of candidates. The pinout provided in the BSDL models is often good, thus the pins constraints rule can be used precisely.
+  * if you are looking for a micro-controller which supports JTAG, select only the BSDL file type. This already remove a lot of candidates. The pinout provided in the BSDL models is often good, thus the pins constraints rule can be used precisely. But only few manufacturer provide it.
-  * if you are look for a micro-controller which does not supports JTAG, not a micro-controller, or did not find the result using BSDL (because the vendor does not provide a BSDL for it), select BXL as file type. This database is quite large and the pinout provided in BXL models is generally quite good.
+  * if you are look for a micro-controller which does not supports JTAG, not a micro-controller, or did not find the result using BSDL (because the vendor does not provide a BSDL for it), select BXL as file type. This database is quite large and the pinout provided in BXL models is generally good.
-  * finally, if you did not find any result in BSDL and BXL, you can still try the IBIS file type. IBIS files are also provided for old parts (even before BXL existd), mostly for high-end or analogue parts, but the pinout provided is terrible. Often only some pins are described (the most relevant for an analogue simulation), thus I recommend also selecting as pin count all numbers under the actual pin count.
+  * if you did not find any result in BSDL and BXL, try with EAGLE files. These are provided by part search engine and cover more manufacturers (which don't provide models themselves). But the quality is very mixed.
+  * you can still try the IBIS file type. IBIS files are also provided for older parts, mostly for high-end or analogue parts, but the pinout provided is terrible. Often only some pins are described (the most relevant for an analogue simulation), thus I recommend also selecting as pin count all numbers under the actual pin count.
 writing pins constraint rules: