Suppose grafik.image01 [] already exists, and grafik.image02 [] needs to be added
We are creating a new project for debugging in memory: with the initialization of the clock, functions for writing to flash memory, a data file for writing, and nothing more.
void main(void)
{
volatile uint32_t temp; temp = 0;
//qspi_data_wire ( uint8_t* data, uint32_t data_size, uint32_t flash_adres)
qspi_data_wire (image02_in[0] , (0x25800 * 2), &grafik.image02[0]);
while(1)
temp++;
;
};
We are waiting for the debugger to get to line number 8.
All new data is recorded.
Now you can delete this code.
The recording function itself checks the addresses of sectors of flash memory, with full overlap. If part of the data is located in the upper or lower part of the physical sector of the flash memory, then the entire physical flash sector is first read into the temporary buffer, then part of the data is replaced by new ones, after which the entire data sector is physically erased and written in a new cycle from the temporary buffer.
If the data completely covers several physical sectors of the external flash memory: then a little useless work is observed - the data is first read and then completely overwritten. I’m just too lazy to write processing conditions, everything works like that.
The size of the temporary buffer should be equal to the size of the physical sector of the external flash memory. There are chips with sector sizes 4k, 16k, 64k, 256k, 512k, and even 4M !!! This imposes restrictions on the breadboard; in some cases, the use of an external sdram is required.
In the case when the data for recording is large, then the only way out is to use an SD card. This is the easiest and fastest way to transfer data. Use the Jlink debugger for this purpose - a waste of time (more than two hours !!!).
I apologize, perhaps the reason for poor communication is the use of an online translator.
