Matrix 8x8 proteus simulation

[JohnB]

I should have opened it, would have saved me from messing with the font.
I must congratulate on an excellent set of libraries.

[Pepe]

Thanks John B, this is my library and I choose font 2 for the degree symbol

[JohnB]

@Pepe Could you possibly send me the ISIS project file you created for the 4*64 led matrix board as shown in Post #60.

[Pepe]

Demo for proteus 8.15

[JohnB]

Thanks, it looks like I will have to upgrade from 8.15 to use it but thanks.

[Pepe]

What is the version that you have of Proteus?

[JohnB]

8.13

[Pepe]

Demo for proteus 8.13

[JohnB]

Thanks very much.

[JohnB]

I have this partially with a 16F1705 now using the same code I used with the 18F27K42 but for some reason this only writes to the first 64x64 display.  I have attached your modified ISIS model and my code - any ideas why its only writing to the first block?

[JohnB]

@Pepe Just modified your program to run on a 16F1705 and added 16F1705 to the ISIS model. 
Not getting anything on the display.  Is there any reason why it should not run on the 16 series devices?

[Pepe]

Modify the library to support pic 16f

[JohnB]

@Pepe Thanks very much - not had time to test it yet.  At first glance the only change I spotted was the buffer size, were  there other changes?  Will this version still work with the 18F series?

[Pepe]

If it still works for the 18f series, the modification I made was to replace the statement va = 1 << column by va = 1 << ( column // 8 ) due to the fact that in 16f if column is > 7 it does not break and va stays in 0 instead in 18f it rotates and goes = 1. I don't know if it is a compiler error but I solved it using column // 8 so that it is not > a 7.
Also lower the size of the buffer because pic 16f has less ram and to show only 7 characters you can put 7 characters × 6 points = 42

Dim buffer(50) as byte

[JohnB]

Thanks I have it working on the 18F27K42 and 16F1705. 

[Pepe]

I'm glad I could help you

[JohnB]

I don't know if you have noticed but it seems that the matrix is a bit slower to update with the new library.  Not measured it but its just an impression.

[Pepe]

At 64mhz on 18f it takes about 35ms and at 32mhz on 16f it takes 95ms and there is almost no difference with the new library