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STM32L432KB bảng dữ liệu(PDF) 45 Page - STMicroelectronics

tên linh kiện STM32L432KB
Giải thích chi tiết về linh kiện  Batch acquisition mode
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32L432KB bảng dữ liệu(HTML) 45 Page - STMicroelectronics

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STM32L432KB STM3L432KC
Functional overview
45
3.33
Development support
3.33.1
Serial wire JTAG debug port (SWJ-DP)
The ARM SWJ-DP interface is embedded, and is a combined JTAG and serial wire debug
port that enables either a serial wire debug or a JTAG probe to be connected to the target.
Debug is performed using 2 pins only instead of 5 required by the JTAG (JTAG pins could
be re-use as GPIO with alternate function): the JTAG TMS and TCK pins are shared with
SWDIO and SWCLK, respectively, and a specific sequence on the TMS pin is used to
switch between JTAG-DP and SW-DP.
3.33.2
Embedded Trace Macrocell™
The ARM Embedded Trace Macrocell provides a greater visibility of the instruction and data
flow inside the CPU core by streaming compressed data at a very high rate from the
STM32L432xx through a small number of ETM pins to an external hardware trace port
analyzer (TPA) device. Real-time instruction and data flow activity be recorded and then
formatted for display on the host computer that runs the debugger software. TPA hardware
is commercially available from common development tool vendors.
The Embedded Trace Macrocell operates with third party debugger software tools.



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