有没有人用过LT3980芯片用于输出5v电压，外围电路怎样设计
2019-03-27 17:13
size...Warning: Could not auto-detect Flash size (FlashID=0x3980c2, SizeID=0x39), defaulting to 4MBA fatal
2023-02-13 06:51
size...Warning: Could not auto-detect Flash size (FlashID=0x3980c2, SizeID=0x39), defaulting to 4MBA fatal
2023-03-06 08:27
常见步进电机驱动芯片有哪些？
2021-10-28 07:55
matlab最后能干什么啊？今年有matlab课程，提不起精神啊，就学了一节课，加减乘除啊，{:14:}matlab最后能干嘛哪啊
2013-03-13 09:08
请问下各位大虾这个运放反馈回路中电容和电阻串联是什么作用？
2017-04-27 10:25
你好Nvidia，我们是一家小型企业，最近为我们的办公室购买了电网K1和K2网格gpus，K2足以满足我们的需求。我们非常担心发现nvidia不再发布网格驱动程序。这是来自nvidia驱动程序站点的一行，“从版本375开始，NVIDIA驱动程序不再支持NVIDIA GRID K2，K1，K520和K340产品。”如果nvidia停止发布网格GPU的驱动程序，他们应该至少提前24个月发出通知，这样人们就可以避免投资这些产品了。做出决定并停止释放司机不应该是蓝色的。我非常劝阻这种不良商业行为，并敦促Nvidia至少在未来24个月内释放司机。谢谢以上来自于谷歌翻译以下为原文Hello Nvidia,We are a small business recently bought grid K1 and K2 grid gpus for our office, K2 was more than sufficient for our need. We are very much worried to find nvidia is no longer releasing grid driver. Here is a line from nvidia driver site, "Beginning with Release 375, the NVIDIA drivers no longer support the NVIDIA GRID K2, K1, K520, and K340 products."If nvidia stops releasing driver for grid GPU, they should provide notice at least 24 months ahead, so people can avoid investing on these products. It shouldn't be out of blue to bring a decision and cease to release drivers. I highly discourage from such ill business practice and urge Nvidia to release drivers at least next 24 months. Thanks
2018-09-27 16:08
新设计从旧设计升级......基本上Dout不会发生。这是因为（我猜）在EEPROM芯片内部的复位极性是错误的。我已经仔细检查过字节0x2000是0x00而数据+字节2000校验和是否与100％工作的主金板匹配.. OE /从4010和CClk复位是正确的.4010复位延迟正确@ 64 mS-我可以在示波器上看到。 Clk是1uS-正确的。如果我从4010断开OE /复位并将其连接到地面，然后EEPROM将输出数据......从逻辑上讲，这告诉我OE /复位极性仍未正确编程。最初，字节2000设置为0xFF（仍然没有工作）所以我虽然重新编程为0x00将解决问题，但它没有。有没有人遇到过这个问题？老帽子，我知道，但它是一个重要的传统航空航天设计，所以没有机会使用最新的东西:)除了，可能用最新的闪存部件取代17V16。 17V16的PLCC是众所周知的母鸡:)TIA以上来自于谷歌翻译以下为原文New board design upgrade from old design... Basically the Dout doesn't happen. That's because ( I'm guessing) that the reset polarity is wrong inside the EEPROM chip.I've double checked that byte 0x2000 is 0x00 and the data +byte 2000 checksum matches the master gold board which is working 100%..OE/reset from the 4010 and CClk are correct.The 4010 reset delay is correct @ 64 mS- I can see that on the scope. Clk is 1uS- correct.If I disconnect OE/reset from the 4010 and connect it to ground,. then the EEPROM will output data...Logically, this tells me that the OE/reset polarity is still not correctly programmed. Initially, byte 2000 was set at 0xFF ( still didn't work) so I though that reprogramming to 0x00 would fix the problem, but it hasn't.Hasanyone come across this issue before ? Old hat, I know, but it's an important legacy aerospace design, so no chance of using the latest stuff :) Except, maybe replacing the 17V16 with the latest flash part. The 17V16's PLCC are the proverbial hen's teeth :)TIA
2019-01-28 10:24
[ 6.122225] CPU: 0 PID: 746 Comm: blkid Not tainted 3.18.11-v7+ #781[ 6.122233] task: b71a3980 ti
2017-01-15 22:48
x018900R3940x018A00R3950x018B00R3960x018C00R3970x018D00R3980x018E00R3990x018F00R4000x019000R4010x
2024-11-11 06:23
