Loading a BIT array, losing my mind!

PIC18F2450

HC VAR BIT[16]

This code will load the HC bits correctly:

HC[0]=1
HC[1]=1
HC[2]=1
HC[3]=0
HC[4]=0
HC[5]=0
HC[6]=0
HC[7]=0
HC[8]=1
HC[9]=1
HC[10]=0
HC[11]=0
HC[12]=0
HC[13]=0
HC[14]=0
HC[15]=0

This code does nothing!
HC = %1111111111111111

HC will still have the bit pattern loaded in the first code.

I have 512 different 16 bit patterns I need to use. Using the first code requires 8192 lines of code. There has got to be a better way! I have tried every VAR type and none of them seem to load data into the HC array. Hoe can I accomplish this? Going crazy.

Hi,
You can't create an array of bits and then treat it as a word (as far as I know), you can however do the opposite - if you can have an array of words instead?

Code:

---

BitPatterns VAR WORD[512]
i VAR BYTE

BitPatterns[0] = %1010101010101010
BitPatterns[1] = %0101010101010101
BitPatterns[2] = 0

For i = 0 to 23
  BitPatterns.0[i] = 1
NEXT

For i = 0 to 22 STEP 2
  BitPatterns.0[i] = 1
  BitPatterns.0[i+1] = 0
NEXT

---

Please see Melanies excellent write up.

EDIT: I'm not sure you can actually declare an array of 512 words, look that up in the manual as it differs between different PIC series.

/Henrik.

Any other ideas's? can't use an array that large

Thanks for the suggestion, I couldn't set the array to 512 words but your code sample inspired me to do it a bit different, its working correctly now. Thanks again.

Bob

How do you want to use the array? That will help determine what way will work for you. There are different ways of playing with data.

EDIT: crossed posted