Hi all
I use KL25Z board, with have SPI Flash Memory ( Do not install ). I use Fat_FileSystem component for Professor Expert from website MCUonelipse , and memory require of Fat_FileSystem is SD Card .
. So i I attend that :
1. Add SD_Card component for Professor Expert from MCUonelipse in Fat_FileSystem .
2. install IC Flash memory in KL25Zboard.
3. The Pin which connect to SD_Card, i will use to connect to IC Flash memory
4. And i will run function : SD_Card read from SD_Card component .
Does IC Flash Memory can replace SD_Card ?
Thank you
Phuong
Solved! Go to Solution.
Hi Phuong,
That unpopulated EEPROM is not connected to the KL25Z: it is connected to the pins of the K20 (OpenSDA chip). So for sure you would need to make hardware modifications to access it from the KL25Z.
But more important: an EEPROM or external FLASH chip has a completly different protocol and command set compared to an SD card. So you cannot swap in an EEPROM instead of an SD card without software/driver modifications. Yes, it is very possible to implement a FatFS driver using an external EEPROM, and the FatFS driver API supports multiple 'memory' types.
Erich
Hi Phuong,
That unpopulated EEPROM is not connected to the KL25Z: it is connected to the pins of the K20 (OpenSDA chip). So for sure you would need to make hardware modifications to access it from the KL25Z.
But more important: an EEPROM or external FLASH chip has a completly different protocol and command set compared to an SD card. So you cannot swap in an EEPROM instead of an SD card without software/driver modifications. Yes, it is very possible to implement a FatFS driver using an external EEPROM, and the FatFS driver API supports multiple 'memory' types.
Erich
Hi Erich
Yes. I have a mistake, Flash IC is not connected to MCU MKL25Z of board. now i change to use SD card for FATFS .Thank you.
Phuong