vic 2fxo

Document directory Overview Features Installation Supported Systems Notes Acknowledgments Feedback Vic-vi Deo C Onferencing Tool Vic is a video conferencing application developed byNetwork Research GroupAtLawrence Berkeley National LaboratoryIn collaboration withUniversity of California, Berkeley.Source code and pre-compiled binaries are availableAnonymous FTP.Vic-related questions and feedback ar

2011-05-10 21:26 2527 People read review (2) Favorite report C signal interface phone Today I looked at the ARM1176 manual about the interrupted part, it is very interesting. Write it down. (a), first of all, say a bit PL192 vector interrupt Controller An interrupt controller is a peripheral device used to handle multiple interrupt sources, and typically contains the following features: 1. Allocate one interrupt request input port for each interrupt source. Assign an interrupt request output po

Category: ARM architecture 2011-07-22 00:22 2632 People read review (10) Favorite Report Timer import System C programming Samsung Directory (?) [+] ++++++++++++++++++++++++++++++++++++++++++ This article is the original site, welcome to reprint! Reprint please specify the source: http://blog.csdn.net/mr_raptor/article/details/6624515 ++++++++++++++++++++++++++++++++++++++++++ tip: If the reader is not very understanding of arm interrupt mechanism, it is recommended to read my other three arti

time, the realization of Enterprise National IP Voice, will establish a nationwide centralized customer service center to lay the foundation. 　　 Since the corporate headquarters typically has a traditional PBX telephone switch, Cisco 3725 is configured as a voice gateway at Headquarters and connected to a PBX through the E1 interface. If the enterprise has a number of branches in the country, each branch office does not need to configure the PBX. According to Cisco's Avvid architecture, Cisco

September 2011 Time to make notes, then read interrupt subsystem code after doing a PPT, kernel version do not remember, hardware platform is Samsung's s5pv210.This part is mainly for the assembly and hard IRQ parts, the processing of SOFTIRQ after hard IRQ processing, and the processing of the lower half (tasklet/workqueue) are not involved.Agenda? Interrupts in ARM? Important structs? External Interrupt resources in s5pv210? Code flow? Kernel API? Interrupts in ARMThere are only two interrupt

1 S5PV210 's Interrupt Controller profile s5pv210 is a cortex-a8-based Soc from Samsung, with an internally integrated interrupt controller connected by 4 arm primecell PL192 vectors Interrupt Controller-level ( Daisy-chain), each PL192 VIC (vectored Interrupt Controller) supports 32 interrupt sources, so it supports up to 128. S5pv210 used 93 of them. The so-called "vector" means that when the interruption occurs, the software can get the pre-set int

; + Desc_smp_init (DESC, node); -}The Arch_early_irq_init () function that was called when it was last returned did not do anything.Then look at INIT_IRQ ():1 void __init Init_irq (void)2{3 machine_desc-> INIT_IRQ (); 4 }MACHINE_DESC is a global variable, defined in the board file, because we are using s5pv210, and the demo board number is selected smdkv210, so this global variable is in ARCH/ARM/MACH-S5PV210/MACH-S5PV210.C:1Machine_start (SMDKV210,"SMDKV210")2 /*Maintainer:kukjin Kim *

register value and found that the volume register value did not change at all, but the volume actually changed. At that time, we suspected that our android volume adjustment was not implemented by hardware, but by its own SW mixer mechanism. When I had dinner with vic in the evening, I had a chat about it. When we continue to track the android audio system today, we find that no matter what the connection between Android and snd_kcontrol is found, wh

found that the volume register value did not change at all, but the volume actually changed. At that time, we suspected that our Android volume adjustment was not implemented by hardware, but by its own sw mixer mechanism. When I had dinner with Vic in the evening, I had a chat about it. When we continue to track the Android audio system today, we find that no matter what the connection between Android and snd_kcontrol is found, whether it is the na

Link from-electronic pioneer (http://www.dz863.com /) 1. Some common abbreviations and explanations of ARMMSB: the highest valid bit;LSB: minimum valid bit;AHB: advanced high-performance bus;VPB: a large-scale peripheral bus connecting the peripheral functions of the chip;EMC: external memory controller;Mam: Memory acceleration module;VIC: vector interrupt controller;SPI: full-duplex serial interface;Can: controller LAN, a serial communication protoc

Https://en.wikipedia.org/wiki/Vickrey_auctionThe Vic auction (Vickrey Auction), the second-price sealed bid auction (Second-price sealed-bid Auction). Bidders who do not know the price of other people to hand out the list, the highest bidder bid, but only pay a high price. [2] Although the VIC auction was used in the auction of stamps as early as 1893 [1], the auction was first made academically by Columbia

. HANDLE_IRQ = Handle_bad_irq,...}};The second session of Linux startup calls:Start_kernel1) early_irq_init---desc = irq_desc;---count= array_size (IRQ_DESC);---for (i = 0; i ---desc[i].irq= i;//interrupt number setting----------...---}Arch_early_irq_init ()2) INIT_IRQ-----for (IRQ = 0; IRQ ----------Irq_desc[irq].status |= Irq_norequest | Irq_noprobe;-----INIT_ARCH_IRQ ()namely S5PV210_INIT_IRQ-ARCH/ARM/MACH-S5PV210/SMDK210.C----------S5P_INIT_IRQ (Vic