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【特點(diǎn)介紹】 1.自主硬件 更快速度 更低價(jià)格 功能完全兼容原廠(chǎng)mkII
2.完整實(shí)現(xiàn)JTAG mkII協(xié)議，支持具備JTAG接口AVR的JTAG調(diào)試；
3.完整實(shí)現(xiàn)debugWIRE協(xié)議，支持具備debugWIRE接口AVR的單線(xiàn)調(diào)試；
4.完整實(shí)現(xiàn)ISP mkII協(xié)議，支持具備debugWIRE和JTAG接口AVR的ISP下載；
5.完整實(shí)現(xiàn)AVR32調(diào)試協(xié)議，支持UC3系列和AP7000系列以及后續(xù)AVR32型號(hào)；
6.完整實(shí)現(xiàn)自動(dòng)升級(jí)協(xié)議，升級(jí)文件由我們提供；
7.完善的接口保護(hù)，并可支持1.8V-5.5V接口電壓；
8.硬件支持xMEGA的PDI調(diào)試；
9.ISP編程速度和JTAG編程速度均明顯快于原裝mkII 【注意】
1.非克隆版，采用自主硬件設(shè)計(jì)，能有效控制成本并提高性能
2.非第一代JTAGICE加STK500混拼版
3.已在AVRSTUDIO (4.13/4.14) / AVR32 STUIDO ( 1.0.7 /2.0.2)和IAR for AVR 4.30/5.11以及IAR for AVR32 2.21下測(cè)試通過(guò)，調(diào)試目標(biāo)有Mega系列，Tiny系列，UC3系列
【F.A.Q】 1Q:貴站的mkII-CN為什么會(huì)這么便宜？性能會(huì)打折扣么？
1A :本站的mkII-CN采用的是自主硬件設(shè)計(jì)，可以有效控制成本，并簡(jiǎn)化了原裝mkII中完全沒(méi)有必要的冗余電路，使得數(shù)據(jù)可以更好更快的傳遞，從而在實(shí)現(xiàn)兼容的前提下提升一定的性能。本站自主設(shè)計(jì)的硬件電路成本比原裝低很多，成本控制好了價(jià)格自然也可以下來(lái)，讓廣大用戶(hù)得到實(shí)惠。

2Q:貴站的mkII-CN如何保證沒(méi)有bug？在出現(xiàn)bug后如何進(jìn)行修正？修正需要多長(zhǎng)時(shí)間？
2A :本站分析研究mkII已經(jīng)有整整兩年時(shí)間，mkII-CN這個(gè)產(chǎn)品不是憑空設(shè)計(jì)的，而是經(jīng)過(guò)我們很長(zhǎng)時(shí)間的分析和研究的，經(jīng)過(guò)幾個(gè)內(nèi)部版本和幾個(gè)月的測(cè)試，目前已經(jīng)可以說(shuō)非常可靠和穩(wěn)定，當(dāng)然我們不可能保證100％的不出bug。一旦客戶(hù)發(fā)現(xiàn)bug，請(qǐng)與我們及時(shí)溝通，我們?cè)诖_認(rèn)bug后會(huì)在第一時(shí)間進(jìn)行修正，一般bug的確認(rèn)和解決不會(huì)超過(guò)3個(gè)工作日。
3Q:為什么說(shuō)mkII-CN的速度要比原裝的快？
3A :mkII-CN不光從硬件上優(yōu)化了電路設(shè)計(jì)，更從軟件上進(jìn)行了較大程度的優(yōu)化，有效的控制了數(shù)據(jù)鏈路長(zhǎng)度，從而有效的提高了編程速度。有條件的用戶(hù)可以與原裝對(duì)比一下ISP和JTAG的編程速度。 4Q:我不小心將原裝的固件升級(jí)到了mkII-CN，我該怎么辦？
4A :請(qǐng)不用擔(dān)心。你只需要重新運(yùn)行一遍升級(jí)操作就可以了，請(qǐng)使用我們發(fā)布的固件。為了方便固件升級(jí)，我們發(fā)布了一個(gè)升級(jí)軟件，通過(guò)該軟件，可以方便的選擇仿真器型號(hào)和固件版本，然后即可進(jìn)行升級(jí)，且該軟件并不破壞原裝固件。 5Q:mkII-CN會(huì)不會(huì)被ATMEL認(rèn)為是盜版產(chǎn)品而通過(guò)序列號(hào)進(jìn)行封殺？
5A :mkII-CN是一個(gè)自主設(shè)計(jì)的反向工程產(chǎn)品，ATMEL原廠(chǎng)工程師及其一級(jí)代理商均認(rèn)可了這款產(chǎn)品。對(duì)ATMEL而言，我們是第三方工具供應(yīng)商，ATMEL會(huì)以積極的態(tài)度接受我們的產(chǎn)品。同時(shí)，由于mkII-CN的升級(jí)固件是我們自己發(fā)布的，協(xié)議也是我們自己編寫(xiě)的，所以不必?fù)?dān)心來(lái)自ATMEL方面的技術(shù)封殺。倒是那些clone mkII比較容易受限制。 6Q:如何保證及時(shí)發(fā)布固件？
6A :mkII-CN是我們自行設(shè)計(jì)的產(chǎn)品，我們對(duì)AVR/AVR32的調(diào)試協(xié)議已經(jīng)全部掌握，所以在ATMEL發(fā)布新版本固件后，我們會(huì)在第一時(shí)間發(fā)布適合我們mkII-CN的新版固件。新固件版本的編寫(xiě)不超過(guò)1個(gè)工作日。如果ATMEL發(fā)布新版本固件，請(qǐng)及時(shí)告知我們，謝謝。 7Q:我想在一臺(tái)電腦上連接多個(gè)mkII-CN，可以么？
7A :每個(gè)mkII-CN都有一個(gè)獨(dú)立的序列號(hào)，所以可以方便的連接多個(gè)mkII-CN，AVRSTUDIO/AVR32STUDIO會(huì)提示你連接哪個(gè)mkII-CN。 8Q:mkII-CN的功耗大么？需要外接電源么？
8A :mkII-CN的功耗很低，不需要外接電源，通過(guò)USB 1.1供電就足夠了。原裝的mkII由于電路復(fù)雜，功耗比較大，如果USB功能能力較弱（比如USB 1.1的PC）或者USB線(xiàn)纜線(xiàn)阻較大就會(huì)出現(xiàn)供電不足的情況。所以原裝mkII預(yù)留了一個(gè)外部電源接口，而mkII-CN尾部的外部電源接口是不需要使用的，也沒(méi)有實(shí)際電路，只是一個(gè)裝飾。 9Q:mkII-CN的保護(hù)電路設(shè)計(jì)的如何？
9A :mkII-CN在USB端口和目標(biāo)板接口上都設(shè)計(jì)了保護(hù)電路。USB端口有一個(gè)自復(fù)位的過(guò)流保護(hù)，可以有效保護(hù)PC機(jī)USB端口和仿真器。目標(biāo)板接口上采用較為復(fù)雜的保護(hù)電路，當(dāng)電源供應(yīng)不對(duì)，比如ISP和JTAG插反的情況下，接口電路是不工作的，從而有效保護(hù)接口電路。

10Q:mkII-CN采用的是什么接口？需要安裝驅(qū)動(dòng)么？
10A :mkII-CN采用的是真正USB接口，尾部的串口是裝飾物，并無(wú)實(shí)際功能，mkII-CN使用的是和原裝一樣的驅(qū)動(dòng)，在安裝AVRSTUDIO的時(shí)候只需要勾選自帶的驅(qū)動(dòng)即可。AVRSTUDIO安裝完畢后插上mkII-CN，當(dāng)PC提示安裝驅(qū)動(dòng)的時(shí)候只需要自動(dòng)安裝即可。

【mkII-CN Features】

Faster Speed, lower price
Implement JTAG mkII protocol, support debug AVR devices with JTAG port
Implement debugWIRE protocol, support debug AVR devices with debugWIRE
Implement ISP mkII protocol, support program AVR devices with JTAG & debugWIRE port
Support debug AVR32 devices, including UC3 series, AP7000 series
Support firmware upgrade, we will provide the firmware
Wide target voltage range: 1.8V - 5.5V, interface protect hardware
Hardware support debug xMEGA devices via the PDI interface
The speed of ISP  program and JTAG program is more fast than mkII 【Note】

Not clone from ATMEL JTAG mkII, the HW & SW are designed by ourself, low price, high performance
The functionality is 100% compatible with ATMEL JTAG mkII
It is not the tool mixed with JTAG ICE & STK500
Work with the following IDE: AVRstudio 4.14, IAR for AVR 4.30/5.11, IAR for AVR32 2.21
Test in these IDEs with AVR mega series, AVR Tiny series, AVR32 UC3 series 【F.A.Q】 1Q: Why mkII-CN so cheap? Does this mean low price, low performance?
1A : mkII-CN is designed by ourself, remove the un-used circuit from the original mkII from ATMEL, this has two advantages: less components, faster communication speed. Though the hardware is not the same as the original one, the functionality is all the same. So the customers can by this use less money. 2Q: How can you ensure your own design is fully compatible with the ATMEL one? If there is a bug, how to fix it?
2A : We analyzed the original products for 2 years. And we tested several versions before mass products. We can not guarantee there is no bug, but we guarantee that we will delivery the fix as soon as the customer find a bug. 3Q: Why mkII-CN is faster than mkII from ATMEL?
3A : Compare with the original one, mkII-CN has a simple hardware, this will reduce the signal latency. On the other hand, we optimize the software, to imporve the programming speed. You can compare the programing speed (via ISP or JTAG) with original one, and send back your results, thanks. 4Q: How can I do if I update the mkII-CN with the firmware from ATMEL?
4A : Don't worry. Please re-update the mkII-CN with the firmware distribute by us. We have provided a software tools. Use this tool, you can update your mkII-CN freely. 5Q: Does there is an issue, mkII-CN will be disabled in AVRStudio by ATMEL, since ATMEL may treat it as pirate?
5A : mkII-CN is approved by ATMEL engineer and be selected as tool by some distributor. Most important is, mkII-CN is designed by ourself, both hardware & software, not a CLONE to the original products. 6Q: How to ensure you can delivery the firmware timely?
6A : We promise to issue new firmware within 3 working days after ATMEL release new AVRstudio or for bug fixing. Communicate us if you found there is a updated from ATMEL. 7Q: Can I connect multiple mkII-CN to one PC?
7A : Each mkII-CN has its own SN, so you can do this as you wish. Just make sure you choose the right one in AVRStudio. 8Q: Dose mkII-CN need stand alone power supply?
8A : It is enough to power the mkII-CN with USB. Do not connect power supply to mkII-CN, that power jack is useless.

9Q: Does mkII-CN has a protect circuit on the connect interface, how about it?
9A : mkII-CN has protect circuit for both USB & target interfaces. USB port has a over-current protect fuse(self recovery), this can protect the PC USB port. The protect circuit for target connection port is more complex. It will not work if the target power is not OK, e.g., the ISP/JTAG is not properly connected.