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54624A Arkusz danych(PDF) 9 Page - Agilent(Hewlett-Packard) |
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54624A Arkusz danych(HTML) 9 Page - Agilent(Hewlett-Packard) |
9 / 24 page 9 Triggering (continued) I2 C and SPI Triggering Don’t spend your time sorting through communication frames to find the one of interest. Let Agilent set up an Inter-Integrated Circuit (I2C) or Serial Peripheral Interface (SPI) trigger to sift through the frames for you. And like the CAN, LIN, and USB trig- gers, I2C and SPI come standard with the 54600-Series scopes. Microcontroller and DSP Applications Microcontrollers (MCUs) and Digital Signal Processors (DSPs) are here to stay, and are becoming more pervasive in industrial, communications, automobile, and consumer products. Design engi- neers must grapple with scopes that were not developed to tackle the mixed analog and digital signals found in MCU- and DSP-based designs. Many engi- neers, who rely primarily on typical 2-channel or 4-channel scopes in mixed analog and digi- tal signal verification and debug, find these scopes to be inade- Figure 7. Trigger on data patterns within a SPI frame. Figure 8. Trigger on address and/or data patterns within an I2C frame. The full range of I2C triggering includes start or stop condition, missing acknowledge, restart, EEPROM data read, address and/or data frame, or 10-bit write. SPI triggering allows for trigger on user-definable framing and user-definable number of bits per frame, as well as data patterns. quate when it comes to the chan- nel count, memory depth, display and triggering. The interactions that occur in typical mixed analog and digital design — taking a real- world signal such as audio, video, temperature or pressure, per- forming some transformation on the signal, and finally returning that signal to the real world — require more viewing capability than current scopes can provide. Agilent 54621D, 54622D, 54641D, and 54642D mixed-signal oscillscopes (MSOs) provide the channel count, memory depth, high-definition display, and triggering that MCU and DSP designs demand. Figure 9. The 350 MHz and 500 MHz MSOs are a great fit for DSP applications. |
Podobny numer części - 54624A |
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Podobny opis - 54624A |
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