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Raspberry Pi OS is a Unix-like operating system based on the Debian Linux distribution for the Raspberry Pi family of compact single-board computers. Raspbian was developed independently in 2012, became the primary operating system for these boards since 2013, was originally optimized for the Raspberry Pi 1 and distributed by the Raspberry Pi Foundation. [3]
In Raspbian, the user must enable the use of the camera board by running Raspi-config and selecting the camera option. The camera module costs €20 in Europe (9 September 2013). [253] It uses the OmniVision OV5647 image sensor and can produce 1080p, 720p and 640x480p video. The dimensions are 25 mm × 20 mm × 9 mm. [253]
Most chips support the 32-bit ARMv7-A for legacy applications. All chips of this type have a floating-point unit (FPU) that is better than the one in older ARMv7-A and NEON ( SIMD ) chips. Some of these chips have coprocessors also include cores from the older 32-bit architecture (ARMv7).
ARMv7 Cortex-M, ARMv7 Cortex-A, IA-32, RISC V PikeOS: Proprietary: available to customers: certifiable safety & security, embedded virtualisation:
Hyp mode (ARMv7 Virtualization Extensions, ARMv8 EL2): A hypervisor mode that supports Popek and Goldberg virtualization requirements for the non-secure operation of the CPU. [105] [106] Thread mode (ARMv6-M, ARMv7-M, ARMv8-M): A mode which can be specified as either privileged or unprivileged. Whether the Main Stack Pointer (MSP) or Process ...
ARM7 is a group of 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use. [1] The ARM7 core family consists of ARM700, ARM710, ARM7DI, ARM710a, ARM720T, ARM740T, ARM710T, ARM7TDMI, ARM7TDMI-S, ARM7EJ-S.
ARMv7-R Cortex-R4: Real-time profile, Thumb / Thumb-2 / DSP / optional VFPv3 FPU, hardware multiply and optional divide instructions, optional parity & ECC for internal buses / cache / TCM, 8-stage pipeline dual-core running lockstep with fault logic 0–64 KB / 0–64 KB, 0–2 of 0–8 MB TCM, opt. MPU with 8/12 regions 1.67 DMIPS/MHz [27] [28]
The ARM Cortex-A7 MPCore is a 32-bit microprocessor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2011. [1] Overview