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7.6 ETM trace
7.6.1 Description
CN12 header 10x2-pin 1.27 mm pitch connector can output trace signals used to debug.
Table 10 describes the hardware configuration for the TRACE function.
Table 10. Hardware I/O configuration for the CN12 TRACE connector
I/O Solder bridge Setting
(1)
Comment
PC9 SB77
ON PC9 can be used for the TRACE function TRACE D0.
OFF
PC9 is not connected to TRACE.
PC9 can be used for SDIO.
PC10 SB81
ON PC10 can be used for the TRACE function TRACE D1.
OFF
PC10 is not connected to TRACE.
PC10 can be used for SDIO.
PE5 R194
ON PE5 can be used for the TRACE function TRACE D2.
OFF
PE5 is not connected to TRACE.
No other muxing
PC12 SB92
ON PC12 can be used for the TRACE function TRACE D3.
OFF
PC12 is not connected to TRACE.
PC12 can be used for SDIO or STMod+.
PE2 R184
ON PE2 can be used for the trace function TRACE CLK.
OFF
PE2 is not connected to TRACE.
No other muxing
PA13 - - PA13 is connected to JTAG JTMS or SWD SWDIO.
PA14 - - PA14 is connected to JTAG JTCK or SWD SWCLK.
PA15 SB15
ON PA15 is connected to JTAG JTDI.
OFF
PA15 is not connected to JTAG.
PA15 can be used for UCPB.
PB3 SB114
ON PB3 is connected to JTAG JTDO or SWD SWO.
OFF
PB3 is not connected to JTAG or SWD.
PB3 can be used for Audio MEMS
NRST - ON NRST is used to reset the target.
1. The default configuration is shown in bold.
STM32U575I-EV
ETM trace
UM2854 - Rev 1
page 20/105