sig_proc_logic.asciidoc

+== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_UI_source [<OpenLab-Printed Circuit Boards - Signal Processing Hardware (U/I-Source)] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/RTS_theory [Real Time Sampling - Theory>]
+
+{empty} + 
+
+Students who attend a study program dedicated to technical
+sciences, are often required to analyze embedded communication
+interfaces, measure duty cycles of rectangular signals or
+test the digital inputs and outputs. In order to complete these
+tasks, it is advantageous to have a logic analyzer. As part of
+the research process, courses at the university were precisely
+analyzed. The result of this analysis is represented in Table V.
+
+The OpenLab Signal Toolkit offers a logic analyzer measurement
+device. Figure 7 shows the block diagram of the logic 
+
+analyzer hardware platform. This hardware add-on communicates
+via USB with the PC application, which is described
+in section IX-E. Hence, the hardware consist of a powerful
+microcontroller LPC1837 [13] from NXP [12], which is a
+Cortex-M3 based μC. Based on the USB high-speed connection
+the sample data are transferred to the PC application.
+This μC provides an internal USB bootloader, which makes
+it easier for students to perform a firmware upgrade. This
+computation performance of the μC is required, because the
+sample frequency is 10 MHz and no external RAM should
+be used. The absence of an external memory reduces the
+costs significantly. A current limitation and an input ESD
+(Electrostatic Discharge) protection circuit, protects the μC.
+Additionally, the hardware platform provides 8 logic level
+pins and connectors for typical embedded communication
+interfaces. These inputs can be used as outputs as well. This
+means the logic analyzer can be configured to a pattern
+generator, and the hardware platform does not need to be
+changed. In pattern generation mode, students are able to
+define logic patterns, communication interface messages which
+are applied to the outputs of the hardware platform.
+
+{empty} + 
+
+== Bibliography +
+
+. NXP: _NXP microcontrollers product page_ [Online] https://www.nxp.com/products/processors-and-microcontrollers:MICROCONTROLLERS-AND-PROCESSORS
+. NXP: _LPC18xx ARM Cortex-M3 microcontroller User manual Rev. 3_ [Online] https://www.nxp.com/docs/en/user-guide/UM10430.pdf
+
+{empty} +
+
+== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_UI_source [<OpenLab-Printed Circuit Boards - Signal Processing Hardware (U/I-Source)] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/RTS_theory [Real Time Sampling - Theory>]
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