memcpy internal error CCS

[appy]

I am trying to drive a 128x64 KS1080 lcd, and am using graphics.c from the examples in CCS 3.150.
However in the graphics.c glcd_text57() gives internal error at memcpy.

int8 j, k, l, m; // Loop counters
int8 pixelData[5]; // Stores character data

for(; *textptr != '\0'; ++textptr, ++x)// Loop through the passed string
{
if(*textptr < 'S') // Checks if the letter is in the first font array
memcpy(pixelData, FONT[*textptr - ' '], 5);

else if(*textptr <= '~') // Check if the letter is in the second font array
memcpy(pixelData, FONT2[*textptr - 'S'], 5);

else
memcpy(pixelData, FONT[0], 5); // Default to space

internal error at the 5

Can anyone help with this please.

Thanks

[PCM programmer]

I think there's a problem with memcpy() in your version of the compiler.
The following test program works OK with PCM vs. 3.249, but with vs.
3.150 it gives an "internal error". The problem is the memcpy() in your
version won't accept FONT[m] as the starting address of a row of data
in a two-dimensional array. I tried other syntax, such as &FONT[m][0]
and it won't accept that either. I'm not sure if it's possible to make it
work in your version. You might have to upgrade the compiler.

[appy]

PCM programmer,

Thank you for this, I have been wracking my mind over it.
Is is possible to write a memcpy function and include it in string.h for ver 3.150?

Thanks again

appy

[PCM programmer]

The problem is that you can't pass a pointer to a constant string in CCS.

As a work-around, you can edit the glcd_text57() function in the
Graphics.c file. Comment out the three lines that have memcpy()
statements and put in the code shown in the for() loops. You also
have to add an int8 variable 'i' for a loop counter.

[appy]

PCM programmer,

Thank you this patch has worked very well.

appy