Type _ sync_fetch_and_add (type * PTR, type value ,...)Type _ sync_fetch_and_sub (type * PTR, type value ,...)Type _ sync_fetch_and_or (type * PTR, type value ,...)Type _ sync_fetch_and_and (type * PTR, type value ,...)Type _ sync_fetch_and_xor
ISFP is a command package for service interruption. There are three scenarios for creating ISR:1. Eight commands in An ISFP package can satisfy ISR requirements.2. ISR can occupy multiple consecutive ISFP (provided that the following interruptions
4. Number of points to simulate floating-point operations and common strategies I believe that you have understood the general situation of converting a floating point to a fixed point operation. In fact, the principle is very simple. If it is
Address: http://blog.csdn.net/gaoling179/article/details/5971100
When using visualdsp ++ 5.0 update7, when creating a project, select Add LDF and startupCodeOptions, as shown in:
However, LDF and Code are not added to the generated
Due to the special hardware or computer software implementation of digital signal processing, the relevant parameters and the results of the operation process are stored in the finite word length of the storage unit, due to the limited precision
MATLAB and CSS Two software are required to do the filter
MATLAB is responsible for generating a set of units of Impulse response array H[n]
The C language of CSS is responsible for the system response function based on the input function X[n] and
A few days to tune down, always feel TI's document vague. But to think about it, the 250-page document was written to the depressed. And a person who understands it is always natural to skip over some of the key things that seem to be important to
The discrete-time signal is not defined at all in the location of the sampling point interval and cannot be simply considered as a value of 0.On the time series axis, move left called ahead, like right move called delay.Down-sampling operation:
For: whzeng@126.com
1. Connect the host and board with the USB simulator of. After power-on, start ccs. The error 240 occurs and the CPU cannot be initialized?Finally, it is clear that the version of CCS is too low. Previously, it was 2.2.18, and
Extern: extern can be placed before a variable or function to indicate that the definition of a variable or function is in another file, prompting the compiler to find its definition in other modules when it encounters this variable and function. In
Recently, the serial port upgrade program needs to convert the. Out file into a binary file and burn it to flash for offline use.
The conversion method is divided into two steps:
(1) first convert the. Out file to the Hex file:
The method here
When the CPU starts to process an interrupt (int4 ~ 15), it will reference the interrupt service table (IST ). Ist is a table that obtains the package containing the interrupted service code. The ist contains 16 consecutive packages. Each ISFP
My development environment is dm6437
1. Project-> New: Create a hello project.
2. Add a database related to step 6437. Add:
C:\CCStudio_v3.3\C6000\cgtools\lib\rts6400.lib
Note that c: \ ccstudio_v3.3 \ c6400 \ dsplib \ Lib \ dsp64x. Lib is not
From: http://blog.csdn.net/timidsmile/article/details/7546023
The function of restrict is to restrict the access of a pointer to a piece of memory. Further, if a block of memory is accessed by a restricted pointer, it cannot be accessed by another
1. Compile the interrupt service routine
Write the ISR function c_intxx in the. C source file for interrupt processing, such:
Interrupt void c_intxx (void)
{
...;
}
Note: For hardware interruptions, xx = 00 ~ 15.
2. initialize the interrupt vector
4. Fixed-point number simulation floating-point operation and the common strategy
I believe that we have already understood the general picture of floating-point number conversion to fixed-point count. In fact, the principle is very simple, really
Two: The storage format of floating point numbers
2.1 IEEE Floating point standard
Above we say, the decimal point of floating-point number is not fixed, if everyone in accordance with their own hobby stored in the computer, that is not a mess? So
and cost and improving reliability. Currently, embedded microcontroller is the most popular among all types of embedded processors in terms of product variety and quantity, and many of the above advantages determine that microcontroller is the mainstream of embedded system applications. The on-chip peripheral resources of the microcontroller are generally rich and suitable for control. Therefore, it is called the microcontroller. Generally, embedded micropr
longer competent. To meet the needs of new Applications in the mobile communication and Multimedia fields, Texas Instruments Corporation proposed the architecture of Open Multimedia application Platform OMAP (Open Multimedia Applications Platform) and designed an OMAP chip for this purpose. It uses a unique dual-core structure that combines a high-performance, low-power DSP core with an ARM microprocessor
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