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SW4STM32C Datasheet(PDF) 62 Page - STMicroelectronics |
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SW4STM32C Datasheet(HTML) 62 Page - STMicroelectronics |
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62 / 99 page  Printf debugging AN4989 62/99 DocID030181 Rev 2 It has to be used in combination with a Serial Wire Viewer (SWV) on host side which provides the following features: • PC (Program Counter) sampling • Event counters that show CPU cycle statistics • Exception and Interrupt execution with timing statistics • Trace data - data reads and writes used for timing analysis • ITM trace information used for simple printf-style debugging This chapter only addresses the printf-style debugging feature. In order host debugger can manage flexible pin assignment ensure SWO pin is not used for other purpose. In STM32CubeMX: Select "Trace Asynchronous Sw" in SYS -> Debug selection box as shown in Figure 42. Figure 42. SWO Pin configuration with STM32CubeMX This secures that the PB3 is not allocated to another use. No specific code is generated. Other init steps are performed by the SWV integrated in the IDE or in the ST-LINK utility. |
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