To enable CoreSight ETM tracing on STMicroelectronics STM32F10xxx devices: Connect ULINKpro to the board's Cortex Debug+ETM connector and to the host computer. Enable the Trace Port Interface as described in the STM32F103xx Reference Manual chapter TRACE Pin Assignment (steps listed below). Configure µVision to capture ETM trace data (steps listed below). Enable the Trace Port Interface Create a text file, for example Trace.ini, and enter the following code: /*------------------------------------------------------------------- ** Define the function to enable the trace port **-----------------------------------------------------------------*/ FUNC void EnableTPIU(void) { // Enable trace port and clock signals // RCC_AHB1ENR: IO port E clock enable _WDWORD(0x40023830, _RDWORD(0x40023830) | 0x00000010); _WDWORD(0x40021000, 0x00002AA0); // GPIOE_MODER: PE2..PE6 = Alternate function mode _WDWORD(0x40021008, 0x00003FF0); // GPIOE_OSPEEDR: PE2..PE6 = 100 MHz speed _WDWORD(0x4002100C, 0x00000

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