const u8 mios32_dout_reverse_tab[256] - how to use

[Phatline]

Whats the deal with that?

So a 595er Pin15 "O0" reacts on MIOS32_DOUT_PinSet(0,  0); instead of  MIOS32_DOUT_PinSet(7,  0) ? or what is it for?

 

temporary help array to mirror a byte (could be provided as MIOS32 help function later) 

and how to use it? something like this >  MIOS32_DOUT_PinSet(mios32_dout_reverse_tab[7],  0) --- when i want it to work like a "MIOS32_DOUT_PinSet(0,  0)"   (because of old or wrong PCB-Design...)

 

mios_32

/////////////////////////////////////////////////////////////////////////////
//! temporary help array to mirror a byte
//! (could be provided as MIOS32 help function later)
/////////////////////////////////////////////////////////////////////////////

// DOUT bits are uploaded in reversed order compared to PIC based MIOS, and
// especially compared to the order on DIN registers
// Most applications would have to convert this - therefore it's already done
// by MIOS32_DOUT_* functions

// mirroring could work with:
// u8 mirror_u8(u8 b)
// { return  ((b&0x01)<<7) | ((b&0x02)<<5) | ((b&0x04)<<3) | ((b&0x08)<<1) | ((b&0x10)>>1) | ((b&0x20)>>3) | ((b&0x40)>>5) | ((b&0x80)>>7); }
// bit this would be a bit slow, e.g. for SR copy routines - therefore we use a table based approached:

// the table has been generated with:
// perl -e 'for($b=0; $b<256; ++$b) { printf("0x%02x,", (($b&0x01)<<7) | (($b&0x02)<<5) | (($b&0x04)<<3) | (($b&0x08)<<1) | (($b&0x10)>>1) | (($b&0x20)>>3) | (($b&0x40)>>5) | (($b&0x80)>>7)); }; printf("\n");'

const u8 mios32_dout_reverse_tab[256] = {
  0x00,0x80,0x40,0xc0,0x20,0xa0,0x60,0xe0,0x10,0x90,0x50,0xd0,0x30,0xb0,0x70,0xf0,
  0x08,0x88,0x48,0xc8,0x28,0xa8,0x68,0xe8,0x18,0x98,0x58,0xd8,0x38,0xb8,0x78,0xf8,
  0x04,0x84,0x44,0xc4,0x24,0xa4,0x64,0xe4,0x14,0x94,0x54,0xd4,0x34,0xb4,0x74,0xf4,
  0x0c,0x8c,0x4c,0xcc,0x2c,0xac,0x6c,0xec,0x1c,0x9c,0x5c,0xdc,0x3c,0xbc,0x7c,0xfc,
  0x02,0x82,0x42,0xc2,0x22,0xa2,0x62,0xe2,0x12,0x92,0x52,0xd2,0x32,0xb2,0x72,0xf2,
  0x0a,0x8a,0x4a,0xca,0x2a,0xaa,0x6a,0xea,0x1a,0x9a,0x5a,0xda,0x3a,0xba,0x7a,0xfa,
  0x06,0x86,0x46,0xc6,0x26,0xa6,0x66,0xe6,0x16,0x96,0x56,0xd6,0x36,0xb6,0x76,0xf6,
  0x0e,0x8e,0x4e,0xce,0x2e,0xae,0x6e,0xee,0x1e,0x9e,0x5e,0xde,0x3e,0xbe,0x7e,0xfe,
  0x01,0x81,0x41,0xc1,0x21,0xa1,0x61,0xe1,0x11,0x91,0x51,0xd1,0x31,0xb1,0x71,0xf1,
  0x09,0x89,0x49,0xc9,0x29,0xa9,0x69,0xe9,0x19,0x99,0x59,0xd9,0x39,0xb9,0x79,0xf9,
  0x05,0x85,0x45,0xc5,0x25,0xa5,0x65,0xe5,0x15,0x95,0x55,0xd5,0x35,0xb5,0x75,0xf5,
  0x0d,0x8d,0x4d,0xcd,0x2d,0xad,0x6d,0xed,0x1d,0x9d,0x5d,0xdd,0x3d,0xbd,0x7d,0xfd,
  0x03,0x83,0x43,0xc3,0x23,0xa3,0x63,0xe3,0x13,0x93,0x53,0xd3,0x33,0xb3,0x73,0xf3,
  0x0b,0x8b,0x4b,0xcb,0x2b,0xab,0x6b,0xeb,0x1b,0x9b,0x5b,0xdb,0x3b,0xbb,0x7b,0xfb,
  0x07,0x87,0x47,0xc7,0x27,0xa7,0x67,0xe7,0x17,0x97,0x57,0xd7,0x37,0xb7,0x77,0xf7,
  0x0f,0x8f,0x4f,0xcf,0x2f,0xaf,0x6f,0xef,0x1f,0x9f,0x5f,0xdf,0x3f,0xbf,0x7f,0xff
};

 

[Antichambre]

;)

 

[Phatline]

thx bro!

i forget that i already made that Circuit-Desigin-Reverse-Failure! DAM²

for my LRE5LCD2 PCB i choose this method (and its working )

i like it because, so i can set the LED-Matrix to be from 0-19 instead of beeing 23-whatever.... so a for(x=0;x<19;x++ ...) is more simple

in the top of the program i made:

// DOUT-TABLE       0   1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
const u8 led[64] = {26,25,24,39,38,37,36,35,34,33,32,47,46,45,44,43,42,41,40,31,30,29,28,27,15,14,13,12,11,10,9, 8, 23,22,21,20,19,18,17,16, 6, 5, 4, 3, 2, 1, 0, 7,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};

i use it for example like this:

    // 1.b Deactivate Anodes
    for (x=0; x<19; x++) {MIOS32_DOUT_PinSet( led[x], 1); }

and made a doku like this:

and there is the libre calc tab:

DOUT-Table.ods

(have a nice day, and hopeing not to need this topic in the future, but if - to find it ;)  )