๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

ํ•˜๋“œ์›จ์–ด/๊ณต๋ถ€ํ•˜๊ธฐ

(21)
์ €ํ•ญ (Resistance) ? ์ €ํ•ญ (Resistance)์ €ํ•ญ์ด๋ž€, ์ „ํ•˜์˜ ์ด๋™์„ ๋ฐฉํ•ดํ•˜๋ฏ€๋กœ ์›ํ™œํ•œ ํ๋ฆ„์ด ํ˜•์„ฑ๋˜์ง€ ์•Š๊ฒŒ ์ œํ•œํ•˜๋Š” ๊ฒƒ.์ฆ‰, ์–ด๋–ค ๋ฌผ์ฒด์— ์ „๋ฅ˜๊ฐ€ ํ๋ฅผ ๋•Œ, ์ด ์ „๋ฅ˜์˜ ํ๋ฆ„์„ ๋ฐฉํ•ดํ•˜๋Š” ์š”์†Œ๋ฅผ ์ €ํ•ญ์ด๋ผ ํ•œ๋‹ค.โ€ป ์ „๋ฅ˜๋Š” ๋‹จ์œ„ ์‹œ๊ฐ„๋‹น ์ „ํ•˜์˜ ์–‘์ด๋‹ค.์ด๋Š” ์ „๊ธฐํ•™ ๊ด€์ ์—์„œ ๋ฐ”๋ผ๋ณธ ์ €ํ•ญ์ธ๋ฐ, ๋ฌผ๋ฆฌํ•™ ๊ด€์ ์—์„œ์˜ ์ €ํ•ญ์€์œ ์ฒด ์†์„ ์šด๋™ํ•˜๋Š” ๋ฌผ์ฒด์— ์ž‘์šฉํ•˜๋Š” ํž˜์ด๋ผ๊ณ  ํ•œ๋‹ค.์œ ์ฒด(ๆต้ซ”) ์†์„ ์šด๋™ํ•˜๋Š” ๋ฌผ์ฒด์˜ ํ‘œ๋ฉด์—๋Š” ์••๋ ฅ ์™ธ์— ์ ์„ฑ(็ฒ˜ๆ€ง) ๋•Œ๋ฌธ์— ๋งˆ์ฐฐ๋ ฅ์ด ์ž‘์šฉํ•˜๋Š”๋ฐ, ๊ทธ ํ•ฉ๋ ฅ(ๅˆๅŠ›)์œผ๋กœ ๋‚˜ํƒ€๋‚˜๋Š” ํž˜์—์„œ ์šด๋™์„ ๋ฐฉํ•ดํ•˜๋Š” ์„ฑ๋ถ„์„ ์ €ํ•ญ์ด๋ผ๊ณ  ํ•œ๋‹ค.โ€ป ํ•ฉ๋ ฅ(resultant force)์€ ๋‘˜ ์ด์ƒ์˜ ํž˜์ด ๋™์ผํ•œ ์ž‘์šฉ์„ ๋ฌผ์ฒด์— ๋ฏธ์น˜๋Š” ํ•˜๋‚˜์˜ ํž˜์ด๋ผ ํ•œ๋‹ค. (ํž˜์˜ ๋ฌด๋ฆฌ๋ฅผ ๋ฒกํ„ฐ ํ•ฉ์„ฑํ•œ ๊ฒƒ) โ€ป ์ ์„ฑ(viscosity)์€ ์œ ์ฒด์˜ ํ๋ฆ„์— ๋Œ€ํ•œ ์ €ํ•ญ์„ ๋งํ•œ๋‹ค...
๊ทธ๊ฒƒ์„ ์•Œ์•„๋ณด์ž - ARM Cortex-M35P ARM Cortex-M35P Cortex-M35P ํ”„๋กœ์„ธ์„œ๋Š” M33 ๋ณด๋‹ค ํ•œ ๋‹จ๊ณ„ ๋” ๋†’์€ ๋ณด์•ˆ์„ ์œ„ํ•˜์—ฌ ๋ฌผ๋ฆฌ์ ์ธ ๋ณด์•ˆ์„ ์ถ”๊ฐ€ํ•œํ”„๋กœ์„ธ์„œ๊ฐ€ ๋˜๊ฒ ์Šต๋‹ˆ๋‹ค. IoT๊ธฐ๊ธฐ๋Š” ํ•ดํ‚น๋‹นํ•˜๋ฉด ์‚ฌ์ƒํ™œ ์นจํ•ด์˜ ๋ฌธ์ œ๊ฐ€ ์žˆ์œผ๋‹ˆ๊น์š”~๊ณ„์†ํ•ด์„œ ๊ธฐ์กด ์‹œ๋ฆฌ์ฆˆ์—์„œ ์„ฑ๋Šฅ์„ ํ–ฅ์ƒ์‹œํ‚ค๋ฉฐ ์ƒˆ๋กœ์šด ๊ธฐ์ˆ ์„ ์ถ”๊ฐ€ํ•˜๋Š” ARM์ด ์ •๋ง ๋Œ€๋‹จํ•ฉ๋‹ˆ๋‹ค. Specifications Architecture : ARMv8-M Mainline extensionBus Interface : 2x AMBA5 AHB interface (Harvard bus architecture)ISA Support : Thumb/Thumb-2 subsetPipeline : 3-stagesSoftware Security : Optional TrustZone for ARMv8-M, with ..
๊ทธ๊ฒƒ์„ ์•Œ์•„๋ณด์ž - ARM Cortex-M33 ARM Cortex-M33 Cortex-M33 ํ”„๋กœ์„ธ์„œ๋Š” ๋ณด์•ˆ๊ณผ ๋””์ง€ํ„ธ ์‹ ํ˜ธ ์ œ์–ด(DSP)๊ฐ€ ํ•„์š”ํ•œ IoT, ์ž„๋ฒ ๋””๋“œ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์— ์žˆ์–ด,ํšจ์œจ์ ์ธ ๋Œ€์•ˆ์ด ๋˜์–ด์ค„ ์ตœ์‹  ํ”„๋กœ์„ธ์„œ๊ฐ€ ๋˜๊ฒ ์Šต๋‹ˆ๋‹ค.Cortex-M23๊ณผ ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ ARMv8-M์•„ํ‚คํ…์ฒ˜๋กœ ์ ‘์–ด๋“ค๋ฉด์„œ ARM์—์„œ ๊ฐœ๋ฐœํ•œ ๋ณด์•ˆ๊ธฐ์ˆ ์ธTrustZone ๊ธฐ์ˆ ์ด ์ ์šฉ๋˜๋ฉด์„œ ๋Œ€๋ถ€๋ถ„์˜ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ์•ˆ์ „ํ•˜๊ฒŒ ๊ฒฉ๋ฆฌํ•˜์—ฌ ๋ณด์•ˆํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. Specifications Architecture : ARMv8-M Mainline extensionBus Interface : 2x AMBA5 AHB interface (Harvard bus architecture)ISA Support : Thumb/Thumb-2 subsetPipeline : 3-stagesSoftware S..
๊ทธ๊ฒƒ์„ ์•Œ์•„๋ณด์ž - ARM Cortex-M23 ARM Cortex-M23 Cortex-M23 ํ”„๋กœ์„ธ์„œ๋Š” ARMv8-M ์•„ํ‚คํ…์ฒ˜๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ์œผ๋ฉฐ, baseline ๋ช…๋  ์„ธํŠธ๋ฅผ ์ง€์›ํ•˜๋Š”์ดˆ์†Œํ˜• 2๋‹จ ํŒŒ์ดํ”„ ๋ผ์ธ ํ”„๋กœ์„ธ์„œ๋ผ๊ณ  ํ•ฉ๋‹ˆ๋‹ค.ํŠน์ง•์œผ๋กœ ์š”์ฆ˜ ๊ฐ™์€ 4์ฐจ ์‚ฐ์—…์‹œ๋Œ€์— ๋งž๊ฒŒ IoT๋ถ„์•ผ ๋ฐ ๋‹ค์–‘ํ•œ ์ž„๋ฒ ๋””๋“œ ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ์˜๋ณด์•ˆ์— ๋Œ€ํ•œ ARM์˜ ์‹ ๊ธฐ์ˆ ์€ TrustZone์ด ํฌํ•จ๋˜์–ด ์žˆ๋Š” ํ”„๋กœ์„ธ์„œ์ž…๋‹ˆ๋‹ค. Specifications Architecture : ARMv8-M BaselineBus Interface : AMBA 5 AHB interface (Von Neumann bus architecture)Optional single cycle I/O interfaceISA Support : Thumb/Thumb-2 subsetPipeline : 2-stagesSof..
๊ทธ๊ฒƒ์„ ์•Œ์•„๋ณด์ž - ARM Cortex-M7 ARM Cortex-M7 Cortex-M7 ํ”„๋กœ์„ธ์„œ๋Š” M4 ๋ณด๋‹ค ํ•œ ๋‹จ๊ณ„ ๋” ๋›ฐ์–ด๋‚œ ์‘๋‹ต์„ฑ๊ณผ ์‚ฌ์šฉ ํŽธ์˜์„ฑ์„ ์ œ๊ณตํ•˜๋ฉด์„œ์—…๊ณ„ ์ตœ๊ณ ์˜ ๊ณ ์„ฑ๋Šฅ ํ”„๋กœ์„ธ์„œ๋กœ ์œ ์—ฐํ•œ ์‹œ์Šคํ…œ ์ธํ„ฐํŽ˜์ด์Šค๋กœ ์ž๋™์ฐจ, ์‚ฐ์—… ์ž๋™ํ™”, ์˜๋ฃŒ ๊ธฐ๊ธฐ,๊ณ ๊ธ‰ ์˜ค๋””์˜ค, ์ด๋ฏธ์ง€ ๋ฐ ์Œ์„ฑ์ฒ˜๋ฆฌ ๊ทธ๋ฆฌ๊ณ  ์„ผ์„œ ์œตํ•ฉ, ๋ชจํ„ฐ ์ œ์–ด๋ฅผ ํฌํ•จํ•˜๋Š” ๋ชจ๋“  ๋ถ„์•ผ์—์„œ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ์—„์ฒญ๋‚œ ๋…€์„์ž…๋‹ˆ๋‹ค. Specifications Architecture : ARMv7E-MBus Interface : 64-bit AMBA4 AXI, 32-bit AHB peripheral port, 32-bit AMBA AHB slave portfor external master (e.g. DMA controller) to access TCMsAMBA APB interface for CoreSigh..
๊ทธ๊ฒƒ์„ ์•Œ์•„๋ณด์ž - ARM Cortex-M4 ARM Cortex-M4 Cortex-M4 ํ”„๋กœ์„ธ์„œ๋Š” M3์— DSP์™€ FPU๋ฅผ ์ถ”๊ฐ€ํ•˜๋ฉด์„œ ์‹œ์žฅ์˜ ํŒ๋„๋ฅผ ๋’คํ”๋“œ๋Š” ์ œํ’ˆ์ด ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.๊ณ ์„ฑ๋Šฅ ๊ณ ๊ฐ€์˜ DSP๊นŒ์ง€ ํ•„์š”์—†๋Š” ๋ชจํ˜ธํ•œ ๋ถ„์•ผ์— ์ ์žฌ์ ์†Œ๋กœ ์ ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ์ œํ’ˆ์ด ๋˜์–ด ์ฃผ์—ˆ์ง€์š”. Specifications Architecture : ARMv7E-MBus Interface : 3x AMBA AHB-Lite interface (Harvard bus architecture)AMBA ATB interface for CoreSight debug componentsISA Support : Thumb/Thumb-2 subsetPipeline : 3-stages + branch speculationDSP Extension :- Single cycle 16/32-bit ..