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Calculate the Fuses – Reading the Fuses – Datasheet
Changing the Gertboard resonator frequency
| lock | |||||||
| Gordon’s avrsetup | E7 | D9 | 07 | 3F | |||
| Default | Device Sig | lfuse | hfuse | efuse | |||
| FF | DE | 5 | |||||
| Bit | Set | Set | Low | Set | Set | High | |
| 7 | 0 | 1 | CKDIV8 | 0 | RSTDISBL | ||
| 6 | 0 | 1 | CKOUT | 0 | DWEN | ||
| 5 | 0 | 1 | SUT1 | 0 | 1 | SPIEN | |
| 4 | 0 | 1 | SUT0 | 0 | WDTON | ||
| 3 | 0 | 1 | CKSEL3 | 0 | EESAVE | ||
| 2 | 0 | 1 | CKSEL2 | 0 | BOOTSZ1 | ||
| 1 | 0 | 1 | CKSEL1 | 0 | BOOTSZ0 | ||
| 0 | 0 | 1 | CKSEL1 | 0 | 1 | BOOTRST | |
| FF | DE | ||||||
| Mini Pi | 0X1E950F | E7 | D9 | 7 | |||
| Bit | Set | Set | Low | Set | Set | High | |
| 7 | 0 | 1 | CKDIV8 | 0 | RSTDISBL | ||
| 6 | 0 | 1 | CKOUT | 0 | DWEN | ||
| 5 | 0 | 1 | SUT1 | 0 | 1 | SPIEN | |
| 4 | 0 | SUT0 | 0 | WDTON | |||
| 3 | 0 | 1 | CKSEL3 | 0 | EESAVE | ||
| 2 | 0 | CKSEL2 | 0 | 1 | BOOTSZ1 | ||
| 1 | 0 | CKSEL1 | 0 | 1 | BOOTSZ0 | ||
| 0 | 0 | CKSEL1 | 0 | BOOTRST | |||
| E7 | D9 | ||||||
| New | 0X1E950F | FF | D6 | 5 | |||
| Bit | Set | Set | Low | Set | Set | High | |
| 7 | 1 | CKDIV8 | 0 | RSTDISBL | |||
| 6 | 1 | CKOUT | 0 | DWEN | |||
| 5 | 1 | SUT1 | 0 | 1 | SPIEN | ||
| 4 | 1 | SUT0 | 0 | WDTON | |||
| 3 | 1 | CKSEL3 | 0 | 1 | EESAVE | ||
| 2 | 1 | CKSEL2 | 0 | BOOTSZ1 | |||
| 1 | 1 | CKSEL1 | 0 | BOOTSZ0 | |||
| 0 | 1 | CKSEL1 | 0 | 1 | BOOTRST | ||