Speed of HSE Clock on Photon?


I’m trying to find the speed that the HSE clock is configured to on the Photon – does anyone happen to have that value handy? Any help would be much appreciated!

(Scanning through the repos and checking STM32Cube it seems like 8Mhz with system clock set to 120 Mhz seems reasonable.)


@jls, the Photon uses a Broadcom module that contains the STM32F205 and the WiFi radio. Based on the information shown in the Photon datasheet, the external crystal used for HSE seems to be 26MHz:

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