CAN与I2C总线的许多细节很类似,但也有一些明显的区别。当CAN总线上的一个节点(站)发送数据时,它以报文形式广播给网络中所有节点。对每个节点来说,无论数据是否是发给自己的,都对其进行接收。每组报文开头的11位字符为标识符,定义了报文的优先级,这种报文格式称为面向内容的编址方案。在同一系统中标识符是的,不可能有两个站发送具有相同标识符的报文。当几个站同时竞争总线读取时,这种配置十分重要。当一个站要向其他站发送数据时,该站的CPU将要发送的数据和自己的标识符传送给本站的CAN芯片,并处于准备状态;当它收到总线分配时,转为发送报文状态。

PV032R1K1T1NGLC
PV032R1K4T1NFHS
PV032R1K8S1NFWS
PV032R1K8T1NMMC
PV032R1K1T1WFDS
PV032R1K1AYNMTP
PV032R1K1T1NHCC
PV032R1K1T1WMM1
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PV032R1K1T1NMMK
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PV040R1K1T1NMF1
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PV040L1K1T1NMMC
PV040R1K1S1NFWS
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PV040R1K1T1NMFC
工程师用四通道在线编程器P8-ISP对客户样机编程时,发现现象确如客户所说的一致。凭着丰富的编程调试经验,我们的工程师将问题为芯片被误操作,导致被加密,查阅芯片技术手册后将根源锁定到2个寄存器上。为了解决这个问题,工程师将P8-ISP的时序代码作相应的修改,在执行擦除、编程操作之前,将2个寄存器的置位顺序做了调整,使MCU处于解密状态,确保芯片在编程过程中不会被误加密。采用更新好时序的P8-ISP来烧写MCU后,客户的汽车电子标签(OBU)烧片效率和良品率都有了明显提高,百万套OBU量产也不再是难事。

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PV040R1K1T1WFR1
PV040R1K1T1NKLC
PV040R9K1T1NFWS
PV040R1K1T1NFFC
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PV040R1K1T1N100
PV040R1K1T1WMR1
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PV040R1K1T1WMRC
PV040R1K1T1NMMK
PV040R1K1T1NMMC
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PV040R1K1T1NMLC
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PV040R1K1T1NELA
PV040R9K1T1NMMCK0188
PV046R1K1T1N001
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PV046R1K1T1NFR1
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PV046R1K1T1NFRC
PV046R1K1T1NFF1
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PV046R1D3T1NFFC
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PV046R1D1T1NHCC
PV046R1K1T1NFFC
PV046R1K1T1NMFC
PV046R1K1T1NMF1
PV046R9K1T1NMMC

PV046R1K1AYNMRC
PV046R1K1JHNMMC
PV046R9K1T1NFWS
PV046R1K4T1NMR1
PV046R1K4T1NFHS
PV046L1K1T1NFWS
PV046R1K1S1NFWS
PV046R1K1T1WFDS
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PV046R1K1T1EMMC
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PV046R1L1T1NMMC
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PV046R1K4T1NMMC

PV046R1K1T1NMMCX5934
PV063R1K1T1NMF1
PV063R1K1T1NMMC
PV063R1K1T1NMMK
PV063R9L1TNMPCK0
PV063R1K1A1VFPR
PV063R1K1C1NFWS
PV063R2K1T1N001
PV063R9L1T1NFWS
PV063R1K1A1NFHS
PV063R1K1T1NFFP
PV063R1K1T1NFPR
PV063R1K1T1NGLC
PV063R1K1T1N001
PV063R1K1T1N100
PV063R1K1T1NFDS
ES2三相相位伏安表可以同时测量三路的电压,电流,功率,频率等参数。电流钳口:φ7.5mm,相位量程:.~36°,电流量程:.mA~2.A,电压量程:.V~6V,有功功率量程:.W~12kW,更具有USB接口,可以上传数据。以下是测量三相四线制进线柜的实操案例。要测量的进线柜现场图。拿出ES2三相相位伏安表,ES2标准配件包括有:主机1台,仪表箱1个,电流钳3把,测试线4条(黄、绿、红、黑各1条),电池6V镍氢电池组(内置),充电器6V镍氢电池组充电器,说明书、保用证1份,光盘1个。