Adjustable overclock for F405 and F411 #5210
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DieHertz
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Doesn't work as of now, will debug tomorrow :-) |
mikeller
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Feb 17, 2018
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Confirmed behaviour on F405: 192MHZ, 216MHZ, 240MHZ all function as anticipated. |
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Confirmed working with 96MHz, 108MHz, 120MHz on MATEKF411RX. |
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Minimal-impact adjustable overclock from #5193 for F405 and F411.
DISABLE_OVERCLOCKreplaced byUSE_OVERCLOCKdefined for supported targetsOFF,192MHZ,216MHZ, and240MHZ_estack16 bytes from RAM end to avoid stomping on hot reboot flags while marking stack with16on devices with no CCM. Also I've noticed that it may be prone to errors even on F405 with CCM as flash ISR vector table contains_estackrather than_heap_stack_end, allowing to overrun reboot flags before they are used. This shouldn't be an issue when using linker properly like in Refactor startup assembly and reboot flags #5193 thoughcpu_overclocksetting doing nothing on F411xE, now we have eitherOFF,108MHZ, or120MHZto choose fromMore generic refactor and rewrite of Assembly & C startup/system files delayed for 3.4.
Tested on OMNIBUSF4SD and NOX v2.15