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‘M’ just stands for microcontroller, as apposed to ‘A’ for application. Many / most complex or multitasking embedded devices will use ‘A’ series to meet their
by mrmondo 9y ago
‘M’ just stands for microcontroller, as apposed to ‘A’ for application.
Many / most complex or multitasking embedded devices will use ‘A’ series to meet their processing requirements, e.g. network routing + OS + firmware / OS programming and multiuser processsing.
I probably should have better qualified my use of the term ‘embedded’.
- hinkley 9y agoBut it does affect the processors used on the Beaglebone and older Raspberry Pi devices.
- frik 9y agoIt does not affect Raspberry Pi devices to my knowledge. Please provide source for your claims! The CPUs in Raspberry Pi 1-3 are not affected. ARM11, Cortex-A7, Cortex-A5 Raspberry Pi 2 v1 use a Broadcom BCM2836 SoC with a 900 MHz 32-bit quad-core ARM Cortex-A7 processor. Raspberry Pi 3 (and Pi 2 v1.2) uses a Broadcom BCM2837 SoC with a 1.2 GHz 64-bit quad-core ARM Cortex-A53 processor. According to ARM website https://developer.arm.com/support/security-update https://developer.arm.com/support/security-update it especially says "*Only affected cores are listed, all other Arm cores are NOT affected.*" and it lists only "Cortex-R7, Cortex-R8, Cortex-A8, Cortex-A9, Cortex-A15, Cortex-A17, Cortex-A57, Cortex-A72, Cortex-A73, Cortex-A75"
- hinkley 9y agoand older Raspberry Pi devices https://www.raspberrypi.org/products/raspberry-pi-2-model-b/ https://www.raspberrypi.org/products/raspberry-pi-2-model-b/ But it looks like I confused the Cortex-A7 with the Cortex-R7, which is not listed.