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The maximum QSPI clock speed is 32 MHz, allowing for a peak 16 MB/s transfer rate. the flash memory can be read as if it was part of the microcontroller internal memory: the QSPI module will handle flash read command and address generation. However, unlike the CM33, this CM4 MCU features also a hardware QSPI interface, which also supports memory mapping, i.e. In fact, considering the different DMIPS/MHz (1.25 vs 1.5) and the different clock (64 vs 80 MHz), the CM33 was 1.5 times faster. In terms of computing power, this MCU is much less powerful than the 80-MHz Cortex M33 (CM33 hereafter) we used previously. The nRF52840 features a 64 MHz Cortex M4 (CM4 hereafter), with 256 kB of RAM and 1 MB of flash. Show once again that some everyday-use low-cost devices are actually powerful enough to run Doom (even faster than you used to on 1993), despite their apparent simplicity.to all devices based on the same microcontroller, provided they have enough accessible GPIOs, to add a QSPI memory, and a display. Port Doom to another device, which is not meant to play Doom at all.This adapter is based on the nRF52840, an IoT RF microcontroller (MCU hereafter), by Nordic Semiconductors (Nordic hereafter).
DONGLE DEFINITION BLUETOOTH
Now, as the title says, we will be targeting a $13 (excluding shipping) Bluetooth LE USB adapter. Time to add one more device to the list of unusual things that run Doom! “… if it exists, it can run Doom.” It’s again Doom time!