[问答]

FX3接口在100MHz的ADC接口

问答对人有帮助，内容完整，我也想知道答案 0 亲爱的各位，我从来没有与FX3一起工作，我现在正在设计一个数据采集系统，它将在100MHz输出32位数据，但是GPIF II端口后面的一些逻辑对我来说仍然是雾蒙蒙的。关键方面：该采集系统具有自己的时钟，并且可以将其提供给PCLK引脚作为输入到FX3IT，它还提供32比特并行数据发送到主机PC（我只需要它被发送到主机PC）。生成数据的设备是ADC，并且没有缓冲能力。E以外的FX3i不能失去ADC样本我正在寻找“流”模式，它适合这个应用程序（如果我错了，请纠正我）。这是在“EZ-USB®FX3从FIFO接口设计”的第45页中描述的。我的问题：我想让ADC时钟自由运行，并且当软件请求时，FX3开始在PCLK的上升沿连续捕获采样，例如，1000毫秒。我仍然要管理pktend #；野莓#；SLRD #；小额贷款#；SLWR #；A [1:0]信号的硬件或软件可能在做的一切吗？？换句话说，我想我的接口与FX3是PCLK时钟和32位数据。这是可能的吗？先谢谢了。马里奥以上来自于百度翻译以下为原文 Dear all, I never worked with the FX3 and I'm right now designing a data acquisition system which shall output 32bit of data at 100MHz but some of the logic behind the GPIF II port is still foggy for me. Key aspects: The acquisition system has its own clock and can provide it to the PCLK pin as an input into the FX3 It also provides the 32 bit parallel data to be sent to the host PC (I just need it to be sent as it is to the host pc) The device generating the data is an ADC and no buffering capability is available outside the FX3 I cannot lose ADC samples I'm looking into the "Stream IN" mode which seams to be the most appropriate for this application (correct me if I'm wrong). This is described in page 45 of "Designing with the EZ-USB® FX3™ Slave FIFO Interface" My question: I would like to have the ADC clock running freely, and when requested by software have the FX3 to start capturing samples at the rising edge of PCLK continuously for, let's say, 1000 ms . Do I still have to manage the PKTEND# ; SLOE# ; SLRD#; SLCS#; SLWR#; A[1:0] signals by hardware or is it possible to do everything in software ?? In other words, I would like that my interface with the FX3 is just PCLK and 32 Bit Data. Is that possible? Thanks in advance, Mario 0
2018-8-19 06:55:59　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × 36切53 该类别下有 65 个回答。邀请回答 hnui2002 该类别下有 50 个回答。邀请回答细水爱长流该类别下有 33 个回答。邀请回答不cdvdhgdh 该类别下有 31 个回答。邀请回答 iwuwjgj 该类别下有 26 个回答。邀请回答 cslb2000 该类别下有 25 个回答。邀请回答 ggfx 该类别下有 23 个回答。邀请回答珠海易胜该类别下有 23 个回答。邀请回答 hrtuoyu 该类别下有 22 个回答。邀请回答 h1654155958.0210 该类别下有 22 个回答。邀请回答 ncmza 该类别下有 21 个回答。邀请回答 shaoye88 该类别下有 21 个回答。邀请回答 april_yu 该类别下有 20 个回答。邀请回答瑾年Invader 该类别下有 20 个回答。邀请回答望望Ll 该类别下有 20 个回答。邀请回答 zkzk196599 该类别下有 19 个回答。邀请回答 nvwuwy 该类别下有 18 个回答。邀请回答 lucas_songlea 该类别下有 18 个回答。邀请回答 fan7572 该类别下有 17 个回答。邀请回答 zhan81411 该类别下有 17 个回答。邀请回答举报阎慧相关推荐 • CAN如何将双通道ADC连接到FX3控制器？ 529 • fx3是否通过spi接口支持wifi应用？ 2384 • 关于FX3 microSD卡接口 2110 • 如何将异步数据读取到FX3 919 • betweenez USB®FX3S™和EZ-USB FX3™有什么区别？ 2481 • 为什么FX3仅适用于USB 3集线器？ 1917 • 怎么在固件中配置FX3，以便在Slave-FIFO接口中使用它 2062 • 赛普拉斯FX3 SuperSpeed Explorer套件的延迟问题 930 • 在下降沿上升时读取ADC 1350 • 如何将数据发送到FX3 2488 1个回答

答案对人有帮助，有参考价值 0 你好，Mario Sousa，是的，你的要求是可以完成的。请参阅an75779应用笔记（http://www.cypress.com/documentation/application-notes/an75779-how-implement-image-sensor-interface-using-ez-u*-fx3-u）的图像传感器接口。这不利用SLWR，野莓，小额贷款，pktend，A [1:0]引脚。相反，线程的切换是在状态机的照顾和in_data行动读取数据到GPIF插座。最好的问候，斯里纳斯以上来自于百度翻译以下为原文 Hello Mario Sousa, Yes, your requirement can be done. Please refer to the AN75779 app note (http://www.cypress.com/documentation/application-notes/an75779-how-implement-image-sensor-interface-using-ez-u-fx3-u* ) which interfaces to an image sensor. This does not make use of the SLWR, SLOE, SLCS, PKTEND, A[1:0] pins. Instead, the thread switching is taken care in the state machine and the IN_DATA action reads the data into the GPIF socket. Best regards, Srinath S

2018-8-19 07:03:00 评论举报杜美娜