问答-
GD32F470ZG外部flash模拟U盘，每次插拔都要重新格式化？
用的官方例程SRAM模拟U盘，官方的每次插拔不会掉格式，我改的外部flash，不清楚为什么每次插拔都要重新格式化，但是格式化后又能正常往里面放文件，读文件都是正常的#defineSTORAGE_BLK_NBR512#defineSTORAGE_BLK_SIZ4096staticint8_tSTORAGE_Read(uint8_tLun,uint8_t*buf,uint32_tBlkAddr,uint16_tBlkLen){spi_flash_buffer_read(buf,BlkAddr*STORAGE_BLK_SIZ,BlkLen*STORAGE_BLK_SIZ);return0;}/*!\briefwritedatatothemedium\paramLun:logicalunitnumber\parambuf:pointertothebuffertowrite\paramBlkAddr:addressof1stblocktobewritten\paramBlkLen:numberofblockstobewrite\param[out]none\retvalstatus*/staticint8_tSTORAGE_Write(uint8_tLun,uint8_t*buf,uint32_tBlkAddr,uint16_tBlkLen){//spi_flash_sector_erase(BlkAddr*STORAGE_BLK_SIZ);W25QXX_Write(buf,BlkAddr*STORAGE_BLK_SIZ,BlkLen*STORAGE_BLK_SIZ);return0;}并且我给2M，格式化前2M，格式化后变1.98了
2023-10-17 2
