Jtag Connector - Avnet SMARC MSC SM2S-IMX8MINI User Manual

For using this Debug connector, customers can obtain a small size debug board (including FCC cable) as an accessory with Order No. 40402. This
board converts the Debug UART signals to RS-232 level and offers them on a standard DSUB9-M connector.
Additionally, this debug board has a soft-reset button and three LEDs on GPIOs for additional debug capabilities.
Serial Debug Console Output options
The Debug connector offers the same SER0_RX/TX signals which are also duplicated on the SMARC connector, pins P129/130 (there with 1.8V level,
while on Debug connector with 3.3V TTL level). See also section 4.11 .
So for accessing the U-Boot / Linux console, depending on availability and usage of the port on the target Carrier board, either connection via the
Carrier board + SMARC connector or via the Debug connector on the module can be chosen to the same effect.

5.7.2 JTAG Connector

JTAG access to the IMX8M Mini CPU is possible via a 10pin FFC connector. The JTAG Chain only contains the CPU itself, so all suitable JTAG
debuggers should work with their default configuration for the respective CPU.
The JTAG connector is not populated by default. Please contact Avnet Integrated /MSC Technical Support if this feature is required.
NOTE: JTAG_MODE has an on-module 10k pull down. If JTAG Mode is left open or pulled low, the CPU is in debug-JTAG mode
(JTAG Interface is connected to the CPU core for software debug). If pulled up, JTAG is connected to the boundary-scan chain of the CPU.
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