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added some introduction comments how to generate and patch this file

master
T. Meissner 10 years ago
parent
commit
0bb9bc5937
1 changed files with 22 additions and 1 deletions
  1. +22
    -1
      st7565-lcd/ada/bcm2835_h.ads

+ 22
- 1
st7565-lcd/ada/bcm2835_h.ads View File

@ -1,3 +1,24 @@
-- BCM2835 library Ada bindings
-- derived from /usr/local/include/bcm2835.h
-- with the GNAT compiler:
--
-- $ g++ -c -fdump-ada-spec -C /usr/local/include/bcm2835.h
-- $ gcc -c -gnat05 *.ads
--
-- see more at: http://www.adacore.com/adaanswers/gems/gem-59/#sthash.eDZ2bNEb.dpuf
--
-- we get two files:
-- bcm2835_h.ads -> BCM2835 bindings
-- stdint_h.ads -> stint bindings
--
-- some #defines couldn't be transformed by GNAT, so we have to do that manually
-- they are marked and commented out in the generated file
-- I've converted them by myself in this file, they are marked with the
-- 'manually converted' comment before (first expressions after the big comment block at the bgin of the package)
with Interfaces.C; use Interfaces.C;
with stdint_h;
with Interfaces.C.Strings;
@ -322,7 +343,7 @@ package bcm2835_h is
--/ Base Physical Address of the PWM registers
--/ Base Physical Address of the BSC1 registers
-- manual converted
-- manually converted
HIGH : constant unsigned := 16#1#;
LOW : constant unsigned := 16#0#;
BCM2835_CORE_CLK_HZ : constant unsigned := 250000000;


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