• 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
返回

电子发烧友 电子发烧友

  • 全文搜索
    • 全文搜索
    • 标题搜索
  • 全部时间
    • 全部时间
    • 1小时内
    • 1天内
    • 1周内
    • 1个月内
  • 默认排序
    • 默认排序
    • 按时间排序
  • 全部板块
    • 全部板块
大家还在搜
  • 地图奇怪警告:MapLib:23检测到信号xxx短路

    你好,我对ISE 14.1的Maper(Win-7 32位)有一个非常神秘的警告MapLib:23- 检测到信号FPGA_CFGMZ的短路信号MapLib:23- 检测到信号FPGA_CFGMZ的短路信号确切的警告重复6次。涉及的信号定义如下:在TopLevelentity中: -//与配置夹层通信 FPGA_CFGMZ_LINK:inout std_logic_vector(16 downto 1); -//一般信号然后,它们被用在内部模块中,其中信号被定义为cfgmz_link:inout std_logic_vector(16 downto 1); -//来自Mezzanine的一般信号分配完成如下: cfgmz_link => FPGA_CFGMZ_LINK,在该内部模块中,信号3至16是输入,信号1和2是输出,用作: -// ---------------------------------------------- ---------------- -//控制Modulator-L4特有的信号 cfgmz_link(1) cfgmz_link(2)然后,在同一个模块中: cfgmz_link_fp_testpoint_out(1) cfgmz_link_fp_testpoint_out(2)而定义是: 信号cfgmz_link_fp_testpoint_out:std_logic_vector(16 downto 1); -//从配置夹层到前面板的信号 cfgmz_link_fp_testpoint并将此信号定义为: cfgmz_link_fp_testpoint:out std_logic_vector(16 downto 1); -//从配置夹层到前面板的信号应用于这些信号的值在包中定义为: 常数DEFAULT_CFGMZ_LINK_1:std_logic:='0'; -// CFGMZ_LINK信号1:默认值常量DEFAULT_CFGMZ_LINK_2:std_logic:='0'; -// CFGMZ_LINK信号2:默认值我检查过那些信号只在那里使用。所以,我的问题是:1-此警告的含义是什么? 没有与这些信号相关的其他警告/错误/信息,并且没有针对该警告的应答记录(并且查看生成的RTL无用)2-在同一向量中混合输入/输出是否存在问题? (我必须这样定义,因为我在不同的系统中使用相同的模块,其中信号可以输入/输出,所以我不想为每种情况修改Toplevel)3-这是ISE另一个“有趣”的警告吗?4-信号是否正确定义为输出并连接到0或ISE是否会使输入和输出缓冲器短路?谢谢以上来自于谷歌翻译以下为原文Hello, I have a very cryptic warning with the Maper of ISE 14.1 (Win-7 32 bits) MapLib:23 - Short on signal FPGA_CFGMZ_LINK detectedMapLib:23 - Short on signal FPGA_CFGMZ_LINK detected And the exact Warnings are repeated 6 times. The signal involved are defined as following : In the TopLevel entity : --// Communication with Configuration Mezzanine FPGA_CFGMZ_LINK : inout std_logic_vector (16 downto 1);--// General Signals Then, they are used in an internal module, where the signals are defined as cfgmz_link: inout std_logic_vector (16 downto 1);--// General Signals from Mezzanine The assignation is done as: cfgmz_link => FPGA_CFGMZ_LINK, In this internal module, signals 3 to 16 are inputs and signals 1 and 2 are outputs, and used as: --//----------------------------------------------------------------// Control of signals specific for Modulator-L4cfgmz_link(1)

    2018-10-15 11:41

  • 使用Android SDK的ST24DV标签问题解答

    嗨,我有几个关于使用Android SDK的ST24DV标签的问题。1)readMailboxMessage(0,0)总是返回第一个字节,该字节为零。这个零第一个字节似乎来自标签本身,但我没有在数据表中找到任何参考。2)readMailboxMessage(0,1)其中参数1是邮箱地址,参数2是要读取的字节数,永远不返回任何内容,而函数为calles的异步线程终止。为什么是这样?3)fastReadMailboxMessage()和fastWriteMailboxMessage与2)中的函数调用具有相同的行为。我的硬件(华为Mate 7)不支持这些快速操作模式吗?任何帮助将非常感激。你的,安德烈亚斯 #fastwritemailboxmessage #readmailboxmessage#first-byte #zero#st25dv #fastreadmailboxmessage以上来自于谷歌翻译以下为原文 Hi, I have a few questions about the use of the Android SDK for the ST24DV tags.1) readMailboxMessage(0,0) allways returns a first byte which is zero. This zero-first byte seems to come from the tag itself, but I did not find any reference in the datasheet.2) readMailboxMessage(0,1) where argument one is the mailbox adress, and argument two is the amount of bytes to read, never returns anything and the asyncrounous thread in which the function is calles terminates. Why is this?3) fastReadMailboxMessage() and fastWriteMailboxMessage sho the same behavoir as the function call in 2). Is it possible, that these fast operation modes are not supported by my hardware (Huawei Mate 7)?Any help would be very appreciated.Yours, Andreas #fastwritemailboxmessage #readmailboxmessage #first-byte #zero #st25dv #fastreadmailboxmessage

    2019-07-18 15:06