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I recently wrote a program that needed to disable interrupts in user mode, but the ARM 7 architecture determines that interrupts can only be changed in privileged mode, so I thought of using ARM's so...[Details]
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UPS power supply testing generally includes two types: steady-state testing and dynamic testing. Steady-state testing is to test the phase voltage, line voltage, no-load loss, power factor, effic...[Details]
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Controlled by uln2003, the following is the simulation schematic diagram: Source program: /***************************************************** This program was produced by the CodeWizardAVR V2.0...[Details]
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TSMC, Samsung and Intel together account for more than half of the total semiconductor industry capital expenditures. Gartner in July forecast industry capital expenditures of $141.9 billion in 2021,...[Details]
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Scenario: Siemens 1500 needs to collect data from 64 modbusRTU instruments
Application difficulties: writing polling programs is complex, the acquisition speed is slow, and using a single seri...[Details]
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One of the biggest bugs of the iPhone is that the battery life of the whole device is too short. The most direct manifestation of this situation is that Apple has always been resistant to large...[Details]
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With the rapid development of integrated circuit technology and process, truly monolithic microcontrollers have become mainstream products. Most of its resources are inside the microcontroller chip...[Details]
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In versions after ARM v4, the ARM core has 7 working modes: User, FIQ, IRQ, Supervisor, Abort, Undefined, and System.
The 7 processor modes are divided into 3 categories:
User mode
Privileged mod...[Details]
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February 27, 2024 – Mouser Electronics, an industry-renowned New Product Introduction (NPI) agent offering an ultra-wide range of semiconductor and electronic components, is the global authorized age...[Details]
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Mouser and Qorvo Collaborate to Create New Resource Center to Help Design Next-Generation Connected Devices August 9, 2022 – Mouser Electronics, a leading New Product Introduction (NPI) distributor...[Details]
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Many engineers often encounter such troubles when using crystal oscillators in circuits. First, the crystal oscillator is not ideally matched in the circuit, affecting the use effect; second, the t...[Details]
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At present, various types of chargers sold on the market require that the positive and negative polarities of the external power supply must not be correct, otherwise the battery or electrical appl...[Details]
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Earlier, Korean media IT News reported that Hyundai Motor and Apple plan to sign an electric vehicle cooperation agreement by March. The report pointed out that the two companies intend to launch sel...[Details]
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1. After executing arm-linux-gcc -v, it prompts.../.arm-none-linux-gnueabi-gcc not found I recently started learning embedded linux . I installed the cross-compilation tool and set the PATH according...[Details]
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Rapidly growing electric vehicle (EV) sales are driving growth in charging infrastructure, which is expected to be worth $40 billion annually across all power levels by 2030. This will provide huge...[Details]