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Kitchen Cabinets Liquidators Buying Guide

Kitchen Cabinets Liquidators Buying Guide

2021-05-30
Digah Company
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kitchen cabinets liquidators is developed by Guangzhou House Empire Construction&Furnishing Co.,Ltd in order to be competitive in the global market. It is elaborately designed and manufactured based on the results of the in-depth survey of global market needs. Well-selected materials, advanced production techniques, and sophisticated equipment are adopted in production to guarantee the superior quality and high performance of the product.Our business also operates under the brand - Digah Company all over the world. Since the brand inception, we have experienced many highs and lows. But throughout our history we have continued to build long-lasting relationships with our customers, connecting them to opportunities and helping them to thrive. Digah Company products always help our customers maintain the professional image and grow business.To provide exceptional services at Digah Company, we carry out a variety of quality measurements on our operation. For example, we measure customer usage of our website, regularly review and assess the quality of our service procedures, and perform a variety of specific spot checks. We also organize regular training on service skills to deliver outstanding customer experience.
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Rising Rates Blog Series: the Double Appeal of Short-maturity Bonds
Rising Rates Blog Series: the Double Appeal of Short-maturity Bonds
As yields increase, short-maturity bond funds can offer both higher income potential and a cushion against interest rate risk. Karen explains the mechanics, in part three of her Rising Rates series.One of the ways to navigate a rising rate environment is to reduce your exposure to bonds with greater levels of interest rate risk. For many investors, this means moving toward short-maturity bonds. In exchange for lower risk, these issues typically generate lower income than longer-maturity bonds.The current market environment is unusual, however. A flatter yield curve means that short bonds are providing similar income to their longer-maturity counterpartswhile still reducing interest rate risk.Investors wanting to gain exposure to short-maturity bonds often do so through bond exchange traded funds (ETFs) or mutual funds, which typically hold a diversified portfolio of bonds with maturities less than five years.Perpetual bond ladderFixed-rate short-maturity bond funds tend to act like a perpetual bond ladder, especially if the fund is an index fund with a defined maturity range, such as 1- to 3-year or 1- to 5-year. The funds portfolio manager rebalances the fund monthly, removing bonds at the low end of the maturity range and adding ones at the higher end. Over time, the portfolio adjusts to the new yield environment; as yields rise, the income increases on the portfolio.Learn more about different ways investors use bond ETFs. Bond income can help offset price shocksThe U.S. Federal Reserve has ended its zero interest-rate policy. It hiked its Fed Funds target rate seven times since December 2015, from 0%-0. 25% to 1. 75%-2. 00% by June 2018. These rate increases are good news for savers as they are getting more yield on their savings. While prices on bonds have fallen over that time, rising yields have in certain cases offset those losses. (Bond prices and yields move in opposite directions. )Too often, investors focus on the price return and forget about the INCOME portion of return in fixed income. The chart below shows the performance of various short-maturity bond indexes, which were analyzed to see how much of the total return came from bond price changes and how much came from income as rates rose.Note that ultra-short bonds, represented by 1- to 12-month US Treasury bills (T-bills), had very little price movement while increasing the income contribution over this time period. Fixed-rate short-maturity sectors like U.S. Treasuries and credit with 13 years to maturity both had prices losses, but increased their income as rates went up. The clear winner over this period was floating rate notes, which had positive returns for both price and income. Index performance is for illustrative purposes only. Index performance does not reflect any management fees, transaction costs or expenses. Indexes are un-managed and one cannot invest directly in an index. Past performance does not guarantee future results.Match maturities to objectivesThe choice between ultra-short, short-term or floating rate bonds depends on your holding period and investment objectives. For a very short-term holding period, consider sticking to high-quality ultra-short maturities, such as less than one year. If you have a longer holding period (over 12 months), short-maturity fixed-rate bond ETFs can provide more income potential during rising rate periods if you can tolerate the price changes over the period.Exchange traded funds like iShares Short Treasury Bond ETF (SHV), iShares 13 Year Treasury Bond ETF (SHY) and iShares Short-term Corporate Bond ETF (IGSB) can provide investment options for those looking for exposure to short-maturity bonds.Karen Schenone, CFA, is a Fixed Income Product Strategist within BlackRocks Global Fixed Income Group and a regular contributor to The Blog. Carefully consider the Funds investment objectives, risk factors, and charges and expenses before investing. This and other information can be found in the Funds prospectuses or, if available, the summary prospectuses which may be obtained by visiting or Read the prospectus carefully before investing. Investing involves risk, including possible loss of principal.Fixed income risks include interest-rate and credit risk. Typically, when interest rates rise, there is a corresponding decline in bond values. Credit risk refers to the possibility that the bond issuer will not be able to make principal and interest payments.Securities with floating or variable interest rates may decline in value if their coupon rates do not keep pace with comparable market interest rates. The Funds income may decline when interest rates fall because most of the debt instruments held by the Fund will have floating or variable rates. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency and its return and yield will fluctuate with market conditions.When comparing stocks or bonds and iShares Funds, it should be remembered that management fees associated with fund investments, like iShares Funds, are not borne by investors in individual stocks or bonds. Buying and selling shares of iShares Funds will result in brokerage commissions. Diversification and asset allocation may not protect against market risk or loss of principal.There can be no assurance that an active trading market for shares of an ETF will develop or be maintained.Transactions in shares of ETFs will result in brokerage commissions and will generate tax consequences. All regulated investment companies are obliged to distribute portfolio gains to shareholders.An investment in fixed income funds is not equivalent to and involves risks not associated with an investment in cash. The Funds are distributed by BlackRock Investments, LLC (together with its affiliates, BlackRock). The iShares Funds are not sponsored, endorsed, issued, sold or promoted by Barclays or Bloomberg Finance L.P., nor do these companies make any representation regarding the advisability of investing in the Funds. BlackRock is not affiliated with the companies listed above. This material is not intended to be relied upon as a forecast, research or investment advice, and is not a recommendation, offer or solicitation to buy or sell any securities or to adopt any investment strategy. The opinions expressed are as of July 2018 and may change as subsequent conditions vary. The information and opinions contained in this post are derived from proprietary and nonproprietary sources deemed by BlackRock to be reliable, are not necessarily all-inclusive and are not guaranteed as to accuracy. As such, no warranty of accuracy or reliability is given and no responsibility arising in any other way for errors and omissions (including responsibility to any person by reason of negligence) is accepted by BlackRock, its officers, employees or agents. This post may contain forward-looking information that is not purely historical in nature. Such information may include, among other things, projections and forecasts. There is no guarantee that any forecasts made will come to pass. Reliance upon information in this post is at the sole discretion of the reader.2018 BlackRock. iSHARES and BLACKROCK are registered trademarks of BlackRock. All other marks are the property of their respective owners.ICR0818U-5520451828536Originally published at on August 28, 2018 RELATED QUESTION What's the meaning of Sia's Chandelier song? Before Chandelier, Sia was a singer with mediocre success. She was really struggling to push her career when she lost her partner to an accident. She got addicted to drugs, suffered depression and even wrote a suicide note. Drugs and alcohol were her only coping mechanisms. This song is about the time she was addicted to alcohol and drugs and her struggle to get out of it. In an interview, Sia said that she always knew she was a drinker and that she must stop, her guilt, shame is what the following lyrics suggest:- Sun is up, I'm a mess Gotta get out now, gotta run from this Here comes the shame, here comes the shame . but, out of peer pressure phones blowing up, they're ringing my door bells, I feel the love .she did not stop. 1,2,3 . 1,2,3 drink throw them back till I lose count The only time she could escape from reality was when she was high, under the influence of alcohol and drugs. She could be carefree, live like tomorrow didn't exist. I'm gonna swing from the chandelier, from the chandelier I'm gonna live like tomorrow doesn't exist Like it doesn't exist I'm gonna fly like a bird through the night Chandelier is ultimately a brutally honest tale of substance abuse. Sia wrote the song for Rihanna but I am so glad that she kept this one for herself.
Introduction to Smith & Locke Concealed Door Closer,Playing Career of Smith & Locke Concealed Door C
Introduction to Smith & Locke Concealed Door Closer,Playing Career of Smith & Locke Concealed Door C
Playing career of smith & locke concealed door closerSmith signed professionally for Dundee United in July 2014. He made his first team debut against Partick Thistle in a Scottish Premiership match on 10 May 2016.In January 2017, he was sent on loan to Scottish League Two side Montrose until the end of the 201617 season. He made his debut for Montrose in a 2-1 victory at home to Cowdenbeath where he was also sent off.Smith was given a first team chance for Dundee United in July 2017 due to injuries to other forwards. He scored his first goal for the club against Cowdenbeath in the Scottish League Cup, but an injury in training ruled him out of the subsequent Dundee derby and for the next six weeks. His first league goal for United came in a 21 defeat at Livingston in February 2018. A 20-yard strike he scored in a 3-1 victory against Queen of the South was voted Dundee United's goal of the 2017-2018 season at the club's annual awards. On 29 May 2018, it was announced that Smith had signed an extension to his contact at Dundee United until May 2020. The club's manager Csaba Lszl welcomed the news and commented Smith had 'shown he can be an essential player for us.On 15 August 2019, it was announced that Smith had joined Cove Rangers on loan until January 2020. Smith left Dundee United in January 2020 and signed for Irish club Waterford.------Personnel of smith & locke concealed door closerMichael W. Smith: piano, keyboards, organ, lead, and background vocalsPatrick Warren: additional keyboards, ChamberlinLindsay Jamieson: drumsLuis Conte: percussionJames Gregory: bass guitarRusty Anderson: guitarsBruce Gaitsch: guitarsPaul Moak: guitars, additional instrumentationJeremy Bose: accordionDavid Davidson: violinDemarco Johnson: harmonicaString arrangements by Jonathan Rathbone for Gettysburg MusicStrings performed by The Philharmonic Orchestra at The CSNO Studio (Prague, Czech Republic), conducted and produced by Joni McCabeChoir: Bethany Ballinger, Sampson Brueher, Lani Crump, Christina Deloach, Rebecca Kohl, JT Landry, Gabrielle Lehr, Michael Olson, Anna Smith, Emily Smith, and Whitney SmithProductionMatt Bronleewe producerMichael W. Smith executive producerRusty Varenkamp engineer, editingColin Heldt assistant engineerBrien Sager assistant engineerRoberto Bosquez assistant engineerJosh Bronleewe additional editing (11)Dark Horse Recording Studio, Franklin, Tennessee recording locationTrack Record, North Hollywood, Califonria additional recordingPentavarit, Nashville, Tennessee additional recordingBlue 42, Franklin, Tennessee additional recordingDeer Valley Studios, Franklin, Tennessee additional recordingShane Wilson mix engineerKip Kubin mix assistantDave Steunebrink mix coordination for Showdown ProductionsAlice Smith mix coordination for Showdown ProductionsDave Steunebrink production coordination Showdown ProductionsLani Crump production coordination Showdown ProductionsGeorge Marino mastering at Sterling Sound, New York CityRobert Ascroft photographyNatalia Bruschi hair and make-upEric Niemand stylistStephanie McBrayer art directionTim Parker art directionMichelle Pearson A&R production------Scholarship of smith & locke concealed door closerSmith's research explored the broad intersections between space, nature, social theory, and history. His dissertation at Johns Hopkins University was supposed to have been on urban processes, but was in fact a major theoretical treatise that became the book Uneven Development: Nature, Capital and the Production of Space (1984). In this major work of social theory, Smith proposed that uneven spatial development is a function of the procedural logic of capital markets; thus society and economies "produce" space.Smith is credited with convincing theories about the gentrification of the inner city as an economic process propelled by urban land prices and city land speculation, rather than by cultural preferences for living in the city; his seminal article "Toward a Theory of Gentrification: A Back to the City Movement by Capital, not People" (1979) has been cited over 300 times.Smith's curiosity about why such critical study of space and place came so late to the discipline of geography lead to his study of early 20th-century geographer Isaiah Bowman and the book American Empire: Roosevelt's Geographer and the Prelude to Globalization (2003), which traced America's rise to global power through geographical ignorance. The book won several awards, including the Henry Adams Prize of the Society for History in the Federal Government. Smith's critique of American-led, capitalist neoliberalism was further developed in The Endgame of Globalization (2005).------Phil Smith (Australian footballer) of smith & locke concealed door closerPhil Smith (15 October 1946 31 January 2010) was an Australian rules footballer who played for Geelong in the Victorian Football League (VFL), West Perth in the West Australian National Football League (WANFL) and Woodville Football Club in the South Australian National Football League (SANFL).Smith was recruited from Geelong Football League (GFL) club Newtown & Chilwell and, while making his senior VFL debut in 1968, he spent most of his time at Geelong in the reserves, making just four senior appearances in his first two seasons. Smith managed eight VFL games in the 1970 VFL season from which he kicked all of his 17 career goals.West Perth recruited Smith in 1971 and, playing as a full-forward, he was their leading-goalkicker for three successive seasons. He kicked 84 goals in 1973 to win the Bernie Naylor Medal but missed that year's WANFL Grand Final, which West Perth lost to Subiaco. Smith was however a member of the 1971 West Perth premiership team. He played at Woodville in 1974 and was their best forward with 53 goals.Smith died aged 63, on 31 January 2010, shortly after being diagnosed with cancer. He was the father of prolific Subiaco forward Brad Smith.------Ordained ministry of smith & locke concealed door closerWilliam Angie Smith entered the Texas Annual Conference of the Methodist Episcopal Church, South in 1921 and was appointed the Pastor of the Kerrville, Texas M.E., S. Church, serving 1920-21. Subsequent appointments followed, including: Midland, Texas, 192123; Tulip St. Church, Nashville, 192426; Trinity Church, El Paso, 192630; First United Methodist Church, Shreveport, Louisiana, 193034; Mt. Vernon Place Church, Washington, D.C., 193436; First Church, Birmingham, Alabama, 193638; and First Church, Dallas, 1938-44. Rev. Smith also served as Acting President of Centenary College of Louisiana, 1932-33.Rev. Smith was a delegate to the Ecumenical Conference of 1931. He was elected a delegate from his Annual Conference to the General Conference of the M.E., S. Church in 1934 and 1938, and of The Methodist Church in 1944. He was a member of the South Central Jurisdictional Conference of The Methodist Church in 1940 and 1944. He was elected by the M.E., S. College of Bishops as a Fraternal Messenger of his denomination to the Methodist Protestant General Convention in 1936. Rev. Smith also was a clergy member of the Book Committee of the M.E., S. Church, 193439, and of the Board of Publication (and its Executive Committee) of The Methodist Church, 1939-44.------Josiah Smith (clergyman) of smith & locke concealed door closerJosiah Smith (1704 October 1781) was a clergyman in colonial South Carolina who championed the causes of the evangelical style of the Great Awakening and later American independence.Smith was born in Charleston, South Carolina into a prominent family. His grandfather, Thomas, was a landgrave and governor of the province of South Carolina. He spent most of his childhood in Bermuda with his father. Josiah graduated from Harvard in 1725. He received his ordination in 1726, returned to Charleston, and was successively pastor of Presbyterian churches in Bermuda, Cainhoy, and Charleston, South Carolina. In 1730, he became involved in a theological dispute with Rev. Hugh Fisher of Dorchester, South Carolina on the subject of subscription to the Westminster Confession of Faith as well as the right of the individual to private judgment. Both Smith and Fisher published sermons concerning the dispute. In 1740, he championed the cause of George Whitefield and invited him to preach from his pulpit after he was refused admission to the local Episcopalian church. In 1749, he had a stroke which left him unable to speak well; however, he continued to write and publish sermons.Rev. Smith sided with the rebelling colonists in the American Revolution. During the Siege of Charleston, he was taken as a war. He was later paroled, but ordered to Philadelphia where he died.------List of architectural works of smith & locke concealed door closerArchitectural works by, or attributed to, James Smith.Drumlanrig Castle, Dumfriesshire (16801690), for the Duke of Queensberry, possibly designed with Robert MylneKirk of the Canongate, Edinburgh (16881690)Chapel Royal at Holyrood Palace, Edinburgh (1688), destroyed by an anti-Catholic mob the same yearWhitehill, Musselburgh (c. 1690), Smith's own home, enlarged in the 18th century and now known as NewhailesMausoleum of George Mackenzie of Rosehaugh (1691), Greyfriars Kirkyard, EdinburghNewbattle Abbey, Midlothian (1693), advised the Earl of Lothian on alterationsHamilton Palace, Lanarkshire (16931701), for the Duchess of Hamilton. Extended in the 18th century and rebuilt in the 19th, the Palace was demolished in 1921.Raith House, Raith Estate, Kirkcaldy, Fife (16921694)Traquair House, Borders (16951699), alterationsDurisdeer Church, and Queensberry Aisle, DumfriesshireMonument to William Douglas, Duke of Hamilton (16341694), in Bothwell Church, Lanarkshire (1695)Old Surgeons' Hall, Edinburgh (16961697)Melville House, Fife (16971700), for the Earl of MelvilleYester House, East Lothian (17011715), with Alexander McGill for the Marquess of Tweeddale, altered in the 18th centuryDalkeith House, Midlothian (17021710), major rebuilding for Anne, Duchess of BuccleuchYester Parish Church, Gifford, East Lothian (1710), attributed to Smith and McGillDupplin Castle, Perthshire (17201725), for the Earl of Kinnoull, destroyed by fire in 1827Smith's Land, High Street, Edinburgh (unknown date), later known as Paisley's Close------Mark W. Smith of smith & locke concealed door closerMark W. Smith (born September 4, 1968, in Cheverly, Maryland) is the New York Times bestselling author of several books, a former professor of law, and the founding partner of a Rockefeller Center-based law firm in New York City. Smith is a regular political and legal commentator in the national media and is a former semi-professional baseball player.Mark is a trial lawyer and conservative writer. He is the author of Official Handbook of the Vast Right-Wing Conspiracy (2004), and of Disrobed: The New Battle Plan to Break the Left's Stranglehold on the Courts (2007).Graduating from New York University in 1995, Smith is currently a trial lawyer in private practice in New York City. He has previously served as a public interest lawyer representing a variety of clients (such as a case in 1997 about hair-braiding regulations in New York), many of whom alleged infringements upon their Constitutional rights. He has also been an Adjunct Professor of Law at the University of Kansas Law School, where he taught a course on American laws with respect to firearms ownership, and clerked for a federal judge.------Ninth Circuit nominations and confirmation of smith & locke concealed door closerSmith was nominated by President George W. Bush to two different vacancies on the Ninth Circuit before eventually being confirmed. The first nomination, on December 16, 2005, was to fill the vacancy left by Judge Stephen S. Trott. However, after opposition from California's U.S. Senators Dianne Feinstein and Barbara Boxer, who argued that Smith, an Idahoan, had been nominated to a "California seat", his nomination stalled in the 109th Congress.Following the Democratic Party takeover of the United States Senate in the aftermath of the November 2006 elections, and the withdrawal of fellow Ninth Circuit nominee William Gerry Myers III, Bush resubmitted Smith's name to the 110th Congress on January 16, 2007. The new nomination was to the seat left open by Idaho Judge Thomas G. Nelson, then on senior status, resulting in Smith's confirmation on February 15, 2007, by a vote of 940, over a year after his original nomination. He assumed senior status on August 11, 2018.Smith was the seventh and final judge appointed by Bush to the Ninth Circuit, and the first Article III judge confirmed by the Senate of the 110th Congress.
Maximizing Your Trade Show ROI Is Not As Difficult As It Seems
Maximizing Your Trade Show ROI Is Not As Difficult As It Seems
Trade shows have quite a few advantages, no doubt - you get your brand name out, and then there's this golden opportunity of showcasing your products, nurturing your relations with the existing customers and getting new customers on board. They are a win-win, or are they? What if the money you spend on these shows doesn't really translate into revenue? Discouraging, right? Well, don't give up, not just yet. Rather do all you can to maximize your ROI.Get The Most Out Of Trade ShowsStart with a press release. Come up with one that's good enough to generate instant buzz, and distribute it online. Of course, you'll be including some keywords, but make sure they are all relevant to your products and services. And yes, don't forget to include a link to your website.Let your website do the talking. Those who visit your website should know of your participation. Have a clear "call-to-action", one that they find difficult to miss. Placing the CTA right on the homepage is a good idea.Invest in PPC, but only if the conventional means yield little to no result. There's no point in increasing your investment if you are not sure of the returns in the first place.Take to blogging. You need to get the word out, and a blog would help you do just that.Make the most of the social media. Create a hashtag and encourage people to spread the news, the news of your participation that is.Don't you have a YouTube channel like already? If you don't, create one and post a video that offers enough reasons to people to come and visit you at the show.Go digital, before, during and after the show. Your brochures and flyers would end up in the trash can. Save yourself some time, money and energy and invest in digital alternates - a pen drive with the necessary information should suffice.Don't just focus on the customers. Invite your business partners and your vendors as well. The more people are at your booth at any given time, the more likely it is to turn into a huge success. And as already mentioned, trade shows are also about building relationships.Ignoring the existing customers is a big no-no. Yes, you do want to entice the prospects, but not at the cost of those who have helped you reach where you are. Take some time out to meet with them, or better still, invest in a loyalty program, giving them yet another reason to come your way.A press kit could go a long way in spreading the word, if it includes everything that the journalists, editors and bloggers look for.Work on in-booth presentations and demos for your visitors, and make sure that the content doesn't bore them to death. Get your marketing team involved.Video loops are also a fun way of ensuring that the visitors sit up and take notice. Shoot videos that give them an inside view of your company and bring them closer to your team. Give them a virtual tour of sorts, unless of course you are actually thinking of getting some VR gears, in which case you could have a real edge over the competition.Trade show ROI is not a tough nut to crack. Posting photos of the show online, following up with the leads and thanking them for showing up, making the visitors feel welcomed when they are the booth, anything and everything that increases engagement should do the trick·RELATED QUESTIONWhich kind of display showcase do you like for your jewelry store?If I were you, I'd like a jewelry showcase suit for my jewelry store. That would be a bright and simple store. With warm color painted wall, like off-white, warm yellow, mint-green, bright light which won't make people uncomfortable, of course, the most important decoration is display showcase. I want a display showcase suit, there are different height of display kiosk, which can show people the merchandise from different angles. Also a reception counter is necessary for checking out. And a wall-mounted showcase is necessary too.
Application Example of ADC Intermittent Conversion Mode Using STM32 Single Chip Microcomputer
Application Example of ADC Intermittent Conversion Mode Using STM32 Single Chip Microcomputer
Sometimes we may need to perform packet conversion on multiple ADC channels, and there is an adjustable time interval between groups. For example, as illustrated below. First convert the first two channels, then the middle two channels, and then the last two channels.If we use the sampling query or interrupt mode, it is also possible to switch and configure the subsequent channels after every two channels are converted, and then start the ad module. As for that time interval, we often use timers to assist. Obviously, this can sometimes seem a little cumbersome.In this case, we can also consider using the discontinuous conversion mode of ADC. That is, an ADC conversion channel sequence is divided into several groups. Each ADC conversion trigger event will convert a group of ad channels, which will be carried out in turn until the conversion of the whole sequence is completed.For example, we use five channels ch1 / CH2 / CH3 / CH4 / CH5 of an ADC module, divide them into three groups, and use a timer to trigger the ADC. In the first trigger, AD conversion of ch1 / CH2 channels is performed, in the second trigger, AD conversion of CH3 / CH4 channels is performed, and in the third trigger, AD conversion of CH5 channel is completed. The fourth trigger performs the same conversion as the first trigger, and the cycle continues.We might as well give a practical example based on the above description. Use stm32f411 discovery development board for debugging verification. Five consecutive ad channels starting from ch1 using ADC1 module are divided into three groups. As shown in the figure below.We use the timer update event to trigger ADC conversion. The interval between group 1 and group 2 conversion and the interval between group 2 and group 3 conversion are controlled by timely adjusting the timing length of the timer.We use the timer update event to trigger DMA, and modify the value of arr by DMA to adjust the time interval between two adjacent groups of transitions. In addition, the conversion result of ADC triggers DMA through EOC event, and DMA orderly moves the conversion result to the specified memory space.After the conversion of the five channels of the whole ADC sequence is completed, the DMA transmission into the ADC is interrupted, and the conversion results of each channel are processed in the interrupt callback function. After that, the next round of ADC conversion can be started.Sort out the whole implementation process mentioned above:1. ADC conversion is triggered by the update event of the timer and performs packet conversion according to the intermittent mode.2. Two DMA transmission channels are enabled, one channel is used for the handling of ADC results, and the other channel is used for the update of timer arr value.When the first timing trigger event occurs, complete the conversion of the first group of ad channels [ch1 and CH2], trigger the DMA transmission of the timer, modify the value of arr, and determine the time interval between the first trigger event and the second trigger event; When the second timing trigger event occurs, complete the conversion of the second group of ad channels [CH3, CH4], trigger the DMA transmission of the timer, and modify the value of arr to determine the time interval between the second trigger event and the third trigger event; When the third trigger event occurs, only the conversion of group 3 ad channel [CH5] is performed here, and the ARR is not modified through DMA. Its value will be specified by the user in the callback function of DMA transmission completion interrupt of ADC.The whole process of configuration and code implementation is posted below for reference. Use the stm32cube MX tool for graphical configuration, and organize the code based on the stm32cube Library of ST company.It is assumed that after the conversion of the first group of ad channels, the conversion of the second group of ad channels is triggered after 0x7000 time units, and then the conversion of the third group of ad channels is triggered after 0x5000 time units. [in practical application, the time base parameters depend on the specific situation]1、 Configuration based on cubemx [RCC / sys configuration omitted].1.1 tim3 configuration, the update event of tim3 triggers ADC conversion and DMA for arr update.1.2 ADC configuration. [select 5 ADC channels, intermittent conversion mode, enable DMA transmission of ADC]2、 Generate initialization code.Based on stm32cube library, the engineering code based on ARM keil MDK integrated development environment is generated.3、 Add user code. [code based on stm32cube library]First, introduce the two arrays used in the user code, namely ADC_ Value [5] and data_ Arr[2].Where ADC_ Value [5] is used to store the conversion result of ADC channel, data_ Arr [2] is used to store arr data to change the timing cycle. They are accessed by different DMA streams.3.1 add the following user code in main().Line 1, clear the timer update event flag.The two lines in the red box respectively start the DMA transmission of ADC / tim3.The fourth step is to execute the DMA request that can update the tim3 event.4. Result validation.Connect the hardware, compile the code, and you can see the conversion results after running. The five ad channels are divided into three groups, and the conversion is triggered successively according to the predetermined time interval, and the conversion result is moved to the specified memory space by DMA. Through the debugger, we can see the ADC results and the corresponding changes of timer arr.Summary: here is mainly to introduce the ADC intermittent conversion mode of STM32 chip, and two peripherals, timer and DMA, are used at the same time. I hope it can bring some reference or enlightenment to readers and be used flexibly in my own development in the future. These peripherals are the most commonly used and basic peripherals of STM32 chip. If we can use them flexibly after mastering them, it will make our STM32 development work more convenient.
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