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我在PIC18F2685上开发了一个项目，我的工厂正在考虑节约成本。他们找到了PIC18F26K80芯片，据我所知，它是一个很好的替代品。任何人都有经验，可以解释为什么PIC18F26K80便宜得多。是因为尺码吗？
以上来自于百度翻译 以下为原文 I have a project developed on the PIC18F2685 and my factory is looking to save costs. They found the PIC18F26K80 chip and as far as I can tell it is a fine substitute. Does any one have experience with them both and can explain why the PIC18F26K80 is so much cheaper. Is is just because of the size? 
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12个回答
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旧芯片往往具有更大的芯片尺寸。尺寸越小，晶片上的芯片越多。旧的芯片可能有较低的体积，这增加了价格。更大的额外处理和存储也提高了他们的价格。
以上来自于百度翻译 以下为原文 Older chips tend to have a bigger die size. The smaller the size the more chips they get from a wafer. Older chips may have lower volumes, that increases there price to. The extra handling and storage that older have raises their price as well. |
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Microchip想要与现代技术和生产的现代设备竞争，从而使生产量和价格相应地变为过时的设备，它们可以以反映成本的价格来提供，并且价格与现有产品不相竞争。Ce在Microchip上直接销售，当库存太大，但大部分是他们坐在库存上，直到有人愿意付出代价。知道Microchip的信，在主网站主页上，警告增加市场需求，以及可能的短缺或更长的交货时间。迈西尔
以上来自于百度翻译 以下为原文 Microchip want to compete in the market with modern devices of current technology and production, so make production volumes and prices accordingly. Obsolete devices, they make available with prices set to reflect costs, and with prices set to not compete with current products. There have been clearance sales on Microchip Direct, when stock is much too large, but mostly they sit on the stockpile, until someone is willing to pay the price. Be aware of the letter from Microchip, in the main website homepage, warning about increasing market demands, and possible shortage or longer delivery times. Mysil |
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嗯，必须有更多的……我加载固件到新的芯片，我的LED停止工作。我的猜测是在数据片中，但我没有发现任何数据。我的PoC的LED是红色定义的0x01，定义绿色0x02*，定义蓝色0x04和蓝色仅工作，我在引脚上看到标签已经改变。OLDRC0T1SO /T13CKIrc1 T1OSIRC2 CPP1NEWRC0 SSOC/SCLKILC1 T1G/CCP2RC2 CPP1 / ReFo/SCL/SCK:什么会使这些引脚在电阻、配置上发生变化？我使用的配置是031 D 7C7F 9000 0091 C000 F E00 F 400 F
以上来自于百度翻译 以下为原文 Well there must be more to it... I loaded the firmware to the new chip and my LEDS stopped working. My immediate guess is the pull ups but I'm not finding anything in the data sheet. my LEDS of PORTC are #define RED 0x01 #define GREEN 0x02 #define BLUE 0x04 and the Blue only works, I see on the pinout that the labels have changed. old RC0 T1So/T13CKI RC1 T1OSI RC2 CPP1 new RC0 SOSCO/SCLKI RC1 T1G/CCP2 RC2 CPP1/REFO/SCL/SCK What would make these pins change in resistance, config? The config I'm using is 031d 7c7f 9000 0091 c00f e00f 400f |
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请以“可读”格式报告配置。SoSCo可能与某些配置设置有关，YEP
以上来自于百度翻译 以下为原文 Please report your CONFIG in "readable" format... SOSCO could be related to some CONFIG setting, yep |
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你能解释可读的格式吗？对不起，我只是没跟上。-哦，你的意思是……有一个页面，我用它，但找不到它。我拍了一个屏幕截图，但不能上传图像访问。否认你没有权限访问“http://www. McCys.com /论坛/上载。ASPX？”在这个服务器上。参考文献18.1E41F64 814933 19103.EC38 645。
以上来自于百度翻译 以下为原文 Would you kinda explain readable format? Sorry I'm just not following that. - oh, you mean with the meanings... There was a page I use to use for that but can not find it I took a screen shot but can not upload images Access Denied You don't have permission to access "http://www.microchip.com/forums/upload.aspx?" on this server. Reference #18.1e41f648.1493319103.ec38645 |
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如α-PrimaMac配置WTD= ON，WDTPS＝128，MCLRE＝OFF，STVR＝ON，LVP＝Off-PracMA配置OSC＝HSPL，FSCM＝OFF，IESO＝ON，pWRT= ON，BOR＝ON，BORV＝27
以上来自于百度翻译 以下为原文 Like #pragma config WDT = ON, WDTPS = 128, MCLRE=OFF, STVR=ON, LVP=OFF #pragma config OSC = HSPLL, FSCM=OFF, IESO=ON, PWRT=ON, BOR=ON, BORV=27 |
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嗯，是的，它可能很难但可行，但遗憾的是，你贴在上面的数字031 D 7C7F 9000 0091 C000 F E000 F 400没有看到任何这些图像…
以上来自于百度翻译 以下为原文 Well yes it could be hard but doable, but sadly the numbers you posted above 031d 7c7f 9000 0091 c00f e00f 400f are not seen in any of those images... |
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我有错误的芯片以上，我重新上传的图像为新的芯片。这就是我在IDE中所拥有的，所以我认为这就是在PICTIT3程序员上写的东西。
以上来自于百度翻译 以下为原文 I had the wrong chip above, I re uploaded the image for the new chip. This is what I have in the IDE so I assume that is what is being written on the pickit3 programmer. |
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现在更好了，是的，如果你不使用看起来像二次振荡器，你最好禁用它在左窗格。
以上来自于百度翻译 以下为原文 Better now So yes, if you're not using Secondary Oscillator as it seems, you'd better disable it in the left pane. |
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