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Flash File System Memory Requirements
| File System Component | Code Size (KBytes) | RAM Size (KBytes) |
|---|---|---|
| Stdio Library Core | 4.73 | 0.94 |
| File System Core | 2.98 | 0.47 |
| FAT File System | Code Size (KBytes) | RAM Size (KBytes) |
|---|---|---|
| FAT with LFN Support | 9.41 | 0.83 |
| Memory Card Support | 1.34 | 0 |
| STM32F2xx SDIO HW Driver | 0.85 | 0 |
| LPC17xx SPI Driver | 0.36 | 0 |
| NAND Support (FTL) | 8.54 | 0.34 + (2* page size) |
| STM32F2xx NAND Driver | 1.41 | 0 |
| SAM3xx NAND Driver | 1.02 | 0 |
| Embedded Flash File System | Code Size (KBytes) | RAM Size (KBytes) |
|---|---|---|
| Embedded Flash File System | <5.00 | 0.28 |
| SST39x320x Flash HW Driver | 0.22 | 0.01 |
| STR91x Flash HW Driver | 0.31 | 0 |
Note
- All example figures are based on Cortex-M3
- All values are minimum requirements with minimum data buffers and no application code
- typical NAND page sizes - Small (512B + 16B), Large (2,048B + 64B)
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