Hello @mathiasmarkussen ,
bool TouchGFXHAL::blockCopy(void* RESTRICT dest, const void* RESTRICT src, uint32_t numBytes)
{
if(FatFSInit == 0)
{
res = f_mount(&SDFatFS, (TCHAR const*)SDPath, 0);
res = f_open(&SDFile, "images3.bin", FA_READ);
FatFSInit = 1; //mount and open the file only once
}
if((uint32_t)src >= (uint32_t)0xA0000000 && (uint32_t)src < (uint32_t)0xA0740C00)
{
uint32_t dataOffset = (uint32_t)src - (uint32_t)0xA0000000;
res = f_lseek(&SDFile, dataOffset);
res = f_read(&SDFile, dest, numBytes, (UINT*)&bytesread); //dest è un indirizzo nella SDRAM
return true;
}
else
{
return TouchGFXGeneratedHAL::blockCopy(dest, src, numBytes); // else we use the default implementation
}
}
This is my implementation of the block copy function. The function seems to work. Every function return FR_OK and after the reading of the image watching the thread I can see that the program execute BitmpatToCache(), cacheInternal(), chacheAll() etc... until it goes here:
void evaluatePendingScreenTransition()
{
if (pendingScreenTransitionCallback && pendingScreenTransitionCallback->isValid())
{
pendingScreenTransitionCallback->execute();
pendingScreenTransitionCallback = 0;
}
}
I tried making a new project, using the same template shown in the vide without adding my own code, so just open the project, “generate code” and program.
With the images in the internal flash ok, everything shows, with the files in the external flash the screen appears on but blank.
