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What is a JTAG? - Electrical Engineering Stack Exchange There is what JTAG 'means' and there is what JTAG 'is' As others have pointed out JTAG 'is' a industry standard bus interface for manufacturing testing, as in J oint T est A ction G roup
JTAG vs SWD debugging - Electrical Engineering Stack Exchange JTAG (Joint Test Action Group) was designed largely for chip and board testing It is used for boundary scans, checking faults in chips boards in production Debugging and flashing micros was an evolution in its application over time JTAG is in use for multiple microcontroller processor architectures aside from ARM General Discussion
How to config Channel A B of FTDI FT4232H to JTAG I'm new with FT4232H I just make for myself a FT4232H device with 4 channels UART (Custom board for learning and researching) And I want change channel A and B to JTAG for debugging STM32 using J
JTAG, SWD, EDBG, ICSP, ISP terms - Electrical Engineering Stack Exchange JTAG - very generic term, SPI-like interface used for boundary scan, can also be used for programming debugging MCUs (almost every vendor has its own protocol, so Cortex-M JTAG is not the same as AVR JTAG or Blackfin JTAG) Spy-Bi-Wire - yet another two wire programming interface, this one is for TI's MSP430 MCUs
Does there exist a general purpose JTAG communicator? Now does there exist a "general purpose JTAG communicator" which I can connect into my PC's USB port and just use a basic API to send read write requests to it to be executed on the FPGA's JTAG port? I do not know if something like this exists Note: I do not intend to use the JTAG device for boundary scan