gamersfirst apb

: 1024Zone (0): 0 pages.Zone (1): 1024 pages.Zone (2): 0 pages.Kernel command line: Root =/dev/rom0Calibrating delay loop... 12.97 bogomipsMemory: 4 MB = 4 MB totalMemory: 2992kb available (831 K code, 175 K data, 40 k init)Dentry cache hash table entries: 512 (Order: 0, 4096 bytes)Inode cache hash table entries: 512 (Order: 0, 4096 bytes)Mount-Cache hash table entries: 512 (Order: 0, 4096 bytes)Buffer-Cache hash table entries: 1024 (Order: 0, 4096 bytes)Page-Cache hash table entries: 1024 (Orde

(Order: 0, 4096 bytes)POSIX conformance testing by uniixLinux net4.0 in Linux 2.4Based upon Swansea University Computer Society net3.039Initializing RT netlink socketStarting kswapdATMEL usart driver version 0.99Ttys0 at 0xfffd0000 (IRQ = 2) is a builtin Atmel APB usartTtys1 at 0xfffcc000 (IRQ = 3) is a builtin Atmel APB usartBlkmem copyright 1998,1999 D. Jeff DionneBlkmem copyright 1998 kenth albanowskiBl

, 40K init)Dentry Cache Hash Table entries:512 (order:0, 4096 bytes)Inode Cache Hash Table entries:512 (order:0, 4096 bytes)Mount Cache Hash Table entries:512 (order:0, 4096 bytes)Buffer Cache Hash Table entries:1024 (order:0, 4096 bytes)Page-cache Hash Table entries:1024 (order:0, 4096 bytes)POSIX Conformance Testing by UnifixLinux NET4.0 for Linux 2.4Based upon Swansea University Computer Society NET3.039Initializing RT NetLink SocketStarting KSWAPDAtmel USART driver Version 0.99TtyS0 at 0xfff

function blocks inside the BLOCK1, and we are from low to high by address.The order is described in turn.0x2000 0000-0x2000 Ffff:sram with a capacity of 64KB.0x2001 0000-0x3fff FFFF: Reserved.(3) Block2 Internal Area function DivisionThe Block2 is designed for on-chip peripherals, and the Block2 is divided into AHB depending on the peripheral bus speed.and APB two parts, APB is divided into APB1 and APB2 b

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that the memory of the data stored in the reverse order of bytes, that is, lower the low address or high address.++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++1. MIPS instructionThe--and instruction is used to deposit an immediate number into a common registerThe la--> instruction is used to store an address (or label) in a common registerThe move--> instruction is used to store the value of one register in another general register2. Linux kernel imageThere are

conversions, and in case of analog watchdog or O Verrun events (for regular conversions) Interrupts when rule conversion ends, injection conversion ends, and simulated watchdog overflow and overrun events (rule conversion mode) occur single and continuous conversion modes//single and continuous conversion modescan mode for automatic conversions in a fully programmable order//support for the completion of programmable scanning mode in automatic conversionprogrammable data alignment with IN-BUILT

empty in the development environment, and the build is automatically updated to clear the cache in the production environment. 2.5, Coolie use Run the Portal module path, note that there is no callback //module path relative to ' Config.base ' coolie.use ('./index.js '); Pay attention. You must manually invoke the. Use () method. parameter is the entry module path, not the Portal module name. For the reusability of the configuration file, when Coolie.js's script specifies the Data-main attribu

Four drive units: the D-bus bus and S-bus bus for the CONTEXT-M3 core, the Universal DMA1, and the general purpose DMA2. Four driven units: internal Flash (internal Mountain village memory), internal SRAM, FSMC, AHB to APB Bridge Ahp2apbx. The Icode bus is the bus that connects the CONTEXT-M3 to the internal Flash Flash instruction interface, realizing the prefetch function of the instruction. The Dcode bus is a bus that connects the CONTEXT-M3 wit

shifter idle. They have a corresponding flag bit in the UART status register Utrstatn/uerstatn.Baud Rate GeneratorEach UART controller has its own baud rate generator to generate the sequence clocks used to send and receive data, the clock source of the baud rate generator can be the system clock inside the CPU, and the clock signal can be obtained externally from the UCLK pin of the CPU, and the individual clock source can be selected by UConn.The specific calculation method for baud rate gene

in the peripheral need APB, do upgrade.　　software-based coherency approach:The coherency of the cache can also be resolved in software, in the previous single processor,just small L1 cache;However, the current SOC is multiprocessor, and there are l2,l3 and other caches, as well as other cache master,gpu.The possibility of software implementation is already very small, too difficult, the performance is very low,hardware-based coherency approaches:1) s

The three-level flow organization in arm: Take the pointer --> decoding --> execute the five-level flow organization in arm: --> decoding --> execution --> buffer \ data --> interface for writing back arm memory and its hierarchy: the data types supported by the basic arm that MMU implements virtual memory management: 8, 16, 32-Bit Signed numbers and unsigned numbers are aligned in two or four bytes. 8-bit: signed charunsigned char 16-bit: shortunsigned short 32-bit: intunsigned int Arm me

, there is also the concept of sub-Interrupt. Some interruptions (such as uart1 2) are first handled by the sub-interrupt shielding register. here we need to block all sub-interrupts. For our board 2440, you can make a slight modification and add a macro to judge it. # If defined (config_s3c2410)LDR R1, = 0x3ffLDR r0, = intsubmskSTR R1, [R0]# Endif Set the clock frequency Register as follows: According to the notes, we can see that this Code sets the fclk hclk pclk frequency ratio, fclk is used

tim3_irqhandler (void)28 {29 tim_clearitpendingbit (tim3, tim_it_cc3 );30 ic2value = tim_getcapture2 (tim3 );31 if (ic2value! = 0)32 {33 dutycyle = (tim_getcapture1 (tim3) * 100)/ic2value;34 frequency = 72000000/ic2value;35}36 else37 {38 dutycycle = 0;39 frequency = 0;40}4142}4344 Note (1): If you want to change the measurement's PWM frequency range, you can divide the TIM clock frequency.4546 tim_timebasestructure.tim_period = 0 xFFFF; // period 0 ~ FFFF47 tim_timebasestructure.tim_prescaler =

S3C2440 clock C code about clock in ads1.2:Changempllvalue (mpll_val> 12) 0xff, (mpll_val> 4) 0x3f, mpll_val 3 ); Changeclockdivider (Key, 12 ); 1) Relationship between flck, hclk and pclkThe S3C2440 has three clock types: flck, hclk, and pclk. According to the S3C2440 official manual: fclk is used by ARM920T,Hclk is used for AHB Bus, which is used by the ARM920T, the memory controller, the interrupt controller, the LCD controller, the DMA and USB Host block. that is, the bus clock, includin

. After the external request signal passes through the 3 or door, it enters the 5 depressed. This is similar to the door which acts on the 4, it is used to introduce the control of event shielding registers. The pulse generator converts a hop-to-hop signal to a single pulse and outputs other functions to the chip, From this figure, we can see that there is no difference between the interrupt and the event from the external incentive signal, but it is separated within the chip. One signal will ge

such as iic and watchdog through the APB bus. 3.2 memoryMemory, also known as the main Memory, is divided into four major areas: the starting image area, the internal Memory area, the static Memory area, and the dynamic Memory area. The physical address of the starting image area is 0x00000000 ~ 0x07ffffff, 128 MB in total. The role of this region is used to start the system, as described in its name. However, there is no actual storage medium corres

. createproducta ();Abstractproductb APB = AF. createproductb ();Abstract Factory, applicable to a set of product series, that is, it is easy to add a product-as long as three classes of producta3, productb3, and concretefactoryare added at the same time; it is not easy to add a method to operate ACTC-you can use the decorator mode to complete this function. You can think about it using DB: A simple factory must generate a subclass for each database,

By default, the operating frequency of the S3C2410 CPU is 12 MHz. The PLL circuit can generate a higher clock speed for the CPU and peripheral devices. The S3C2410 has two PLL: mpll and upll, which are dedicated to upll and USB devices. Mpll is used for CPU and other peripheral devices. Mpll generates three clock frequencies: fclk, hclk, and Plck. Fclk is used for CPU cores, hclk is used for AHB Bus devices (such as SDRAM), and pclk is used for APB

1. Set the $D, e$ is $\triangle{abc}$ side $BC $ two, and $BD = ec$, $\angle{bad} = \angle{eac}$. Verification: $\triangle{abc}$ is isosceles triangle. RussiaHINT:by $BD = ec$ and collinear, considering panning $\triangle{abd}$ to $\triangle{fec}$, you get $ABEF $ is parallelogram and $A, E, C, f$ four points round $\rightarrow \angle{ace} = \angle{afe} = \angle{abd}$.2. Set $P $ is parallelogram $ABCD $ within any point, and $\ANGLE{APB} + \ANGLE{CPD