" >⑥ triangle waveform generation ⑦ dual DAC channel simultaneous or separate conversion ⑧ each channel has DMA function The voltage is linear from 0~vref+, 12-bit mode DAC output voltage and vref+ and Dorx are calculated as follows: Dacx output voltage =vref* (dorx/4095) The understanding of my ADC and DAC is:The ADC can collect voltage to convert the voltage to a number, the DAC can convert the number to the form of voltage and outputConfiguration steps:1 ) Turn
a temporary A1 variable// Then this temporary variable calls A1: Print ()// After the statement is out of scope (when the statement ends), A1 ::~ will be called ::~ A1 ()// For more information, see note 4.Printline ();A2.a1: Print (); // unlike the previous sentence, the Destructor is not called here.Printline (2 );} // Beyond the scope, call the destructor. curly brackets are also used in the same format.Printline (3 );
// An error may occur when the pointer is used to implement real coverage
The channel of the DAC module outputs an analog voltage with the following detailed setup steps:1) Turn on the PA port clock and set the PA4 as analog input.Stm32f103zet6 DAC Channel 1 is connected to the PA4, so we first want to enable the Porta clock, and then set the PA4 as the analog input (although the input, but the STM32 inside will be connected to the DAC
hello ("Hello", "Bob", pun = ". ") Output: Hello, Bob! Hello, world! Hello, Bob.1.2.2 collection Parameters
Def func3 (title, * params): print (title) print (params) func3 ("title", "Testing", "Testing2", "Testing3") output: title ('testing', 'testing2', 'testing3') # You can see that the asterisks before the parameter put all values in the same tuples. The asterisks mean to collect parameters from other locations, if not provided, it is an empty tuples. # "**" Processing keyword parameters ret
ability to sort is enumerable, you don't need to mix the modules in your class, you can put your objects in a enumerable container. This container object can be enumerated, and you can sort the collection using sort and sort_by.
To sort a numeric array:
>> [3,2,5,1,4].sort=> [1, 2, 3, 4, 5]Sorting numbers is easy, if you want to sort a set of paintings?
>> [PA1, PA2, Pa3, PA4, Pa5].sortYou can define the
def Self.price EndNow the order of a set
extracts the plural form:
echo trans_choice (' Messages.apples ', 10);
Because Laravel translators are based on the Symfony translation component, you can create more complex complex plural rules:
' Apples ' = ' {0} there is none| [1,19] There is some| [20,inf] There is many ',
Overwrite Vendor language files
Many packages will come with their own language files. If you need to replace some of these language content, you can store your own language files into the Resources/lang/vendor/{pac
array as the second parameter of the trans function:
echo trans('messages.welcome', ['name' => 'Dayle']);
Diversified
Diversification is a complicated problem because different languages have different rules for diversification. by using the pipe character "|", you can distinguish between the singular and plural forms of a string:
'apples' => 'There is one apple|There are many apples',
Then, you can use the trans_choice function to obtain the Language Line of the given number of rows. In t
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C
Tags: for workspace port bin exe AST configuration common IATCreate a DirectoryMkdir-p/DATA/R0/DATA/R1/DATA/R2Declaring an instance./bin/mongod--port 27017--dbpath/home/workspace/data/r0/--smallfiles--replset RSA--fork--logpath/home/workspace/ Logs/mongo0.log./bin/mongod--port 27018--dbpath/home/workspace/data/r1/--smallfiles--replset RSA--fork--logpath/home/workspace/ Logs/mongo1.log./bin/mongod--port 27019--dbpath/home/workspace/data/r2/--smallfiles--replset RSA--fork--logpath/home/workspace/
column, and then find the MoD, loaded under the page. It can then be categorized for ease of management. If you set the category, it's the 2nd last button in the left column. (Ps. After loading the mod, you can remove this mod because NMM has placed the MoD in its own folder and can open it from the button on the top bar.) )
3, after loading mod, does not mean that has been installed. You will need to double-click the MoD and then nmm it to install it. Uninstall is also double click Uninstall.
I've also prepared a lot of new SharePoint 2013 features recently in government, such as SharePoint 2013 search. I'll have a chance to talk about Office Web App,workflow.
SharePoint 2013 's search is powerful, especially in the social domain, which is refreshing (such as discovering knowledge, discovering relationships, etc.). As shown below is a SharePoint general search that enables Full-text retrieval of office (including, of course, a lot, such as PDF).
Enable Search Service Application
DMA:
1. Why can I configure the I/O port to enable the input mode when I/O port is used to output the converted analog signal through the I/O port?
PS: The stm32 Manual defines that pa4 and pa5 are connected to the dac1 channel and the dac2 channel respectively;
Dma1 and dma2 use the following channels:
How is DMA used to transmit waveform data from memory with DAC? :
/* Configure dma2 */Dma_initstructure.dma_peripheralbaseaddr = dac_dhr12rd_address
files, usually causing versioning and location problems because of misunderstanding of the Java class Loading Model
See alsoCode smell-symptom of unsound ProgrammingList of software development philosophies-approaches, styles, maxims and philosophies for software developmentSoftware Peter Principle
References^ Budgen, D. (2003). Software design. Harlow, Eng.: Addison-Wesley. pp. 225. ISBN 0-201-72219-4. http://books.google.com/books? Id = bnY3vb606bAC pg = PA225 dq = % 22anti-pattern % 22 + d
.**************************************** *************************//*************************************** ***********************************Function Description: completes the test of LED lights through io.Input parameter: NoneOutput parameter: None**************************************** *********************************/Int main (void){HalInit (); // initialize the hardware circuitUartInit (115200, 8, PARITY_NONE, 1); // initialize UART serial port// Configure
process Details①RCC ClockThe function is located under the BSP. c file;I'm personally accustomed to the first step of configuring the clock, ST 's officially provided routines also put the configuration clock in front. The configuration of the RCC clock is important, several times I just forgot to configure the corresponding RCC clock, let me find a long time problem, finally found that the RCC The clock is not configured. Attention:Peripheral clocks should not be arbitrarily added, such as:
One: Trigger modeThe external interrupt of the STM32 is triggered by the edge, and the level trigger is not supported;Two: External interrupt groupingEach gpio of the STM32 can be configured as an external interrupt trigger source, STM32 by dividing many interrupt trigger sources into groups according to the PIN's sequence number, such as: Pa0,pb0,pc0,pd0,pe0,pf0,pg0 for the first group, and so on, We can draw a total of 16 groups, STM32 rules, each group can only have one interrupt trigger sour
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