From: antispam@fricas.org   
      
   albert@spenarnc.xs4all.nl wrote:   
   > In article ,   
   > Waldek Hebisch  wrote:   
   >    
   >>   
   >>BTW: Chip datasheet talks about ports and pin numbers within   
   >>ports, Milkv Duo picture uses pin numbers but there is mixup   
   >>with ports.  There is command line outility to deal with pins,   
   >>it uses different numbering similar to numbering on the board   
   >>but not the same.  Linux uses still different ping numbering.   
   >>Above I use pin number withing port + 32*port number where   
   >>ports are numbered from 0.   
   >   
   > That is a sensible convention, I use the same.   
   > In my riscv board the output are marked i.e. GD13 that   
   > has assigned the Forth io number (^D-1)*0x20 +13 .   
   > That gets 0x6D .   
      
   64 MB Milkv Duo board has marking like GP0, GP1, etc.  As I wrote   
   this does not agree with most other sources.  I think 256 MB   
   version has "the same" marking, but probably slightly different   
   correspondence with ports and lines withing ports.  Milkv   
   Duo S has different connectors and no marking on the board.   
   Each has different chip, 64 MB is CV1800B (68 pin QFP, 1 GHz Risc-V +   
   700MHz Risc-V + 8051), 256 MB is SG2002 (88 pin QFP, 1GHz Arm +   
   1 GHz Risc-V + 700MHz Risc-V + 8051), Duo-S had 512 MB RAM and   
   uses SG2000 (205 pin BGA, 1GHz Arm + 1 GHz Risc-V + 700MHz Risc-V +   
   8051).  On 64 MB duo there are some pins that apparently can be   
   connected to two different ports, reference via "canonical" label   
   of a pin would exclude such thing.   
      
   --   
                                 Waldek Hebisch   
      
   --- SoupGate-Win32 v1.05   
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