jtag/swd pullup & pulldown

흐음...

pull up/down 저항이 낮아서 문제가 되려나?

[링크 : http://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/348680/1220668]

[링크 : http://www.alteraforum.com/forum/archive/index.php/t-32059.html]

JTAG Mode	SWD Mode	Signal	Required pull-up / pull-down (if not implemented internally by MCU)
TCK	SWCLK	Clock into the core	Use 10K-100K Ohm pull-down resistor to GND
TDI	-	JTAG Test Data Input	Use 10K-100K Ohm pull-up resistor to VCC
TDO	SWV	JTAG Test Data Output / SWV trace data output (SWO)	Use 10K-100K Ohm pull-up resistor to VCC
TMS	SWDIO	JTAG Test Mode Select / SWD data in/out	Use 10K-100K Ohm pull-up resistor to VCC
GND	GND	-	-

[링크 : https://www.lpcware.com/content/faq/lpcxpresso/debug-design]

[링크 : http://www.support.code-red-tech.com/CodeRedWiki/HardwareDebugConnections] 조만간 폭파

Signal	Connects to...
TMS	Test Mode State pin — Use 100K Ohm pull-up resistor to VCC.
TDO	Test Data Out pin.
RTCK	JTAG Return Test ClocK. (see Note below)
TDI	Test Data In pin — Use 100K Ohm pull-up resistor to VCC.
TRST	Test ReSeT/ pin — Use 100K Ohm pull-up resistor to VCC. TRST is optional and not available on some devices. You may leave it unconnected.
TCLK	Test CLocK pin — Use 100K Ohm pull-down resistor to GND.
VCC	Positive Supply Voltage — Power supply for JTAG interface drivers.
GND	Digital ground.
RESET	RSTIN/ pin — Connect this pin to the (active low) reset input of the target CPU.
CPUCLK	CPU clock (according IEEE Standard 1149.1).
OCDSE	Enable/Disable OCDS interface (Infineon-specific).
TRAP	Trap condition (Infineon-specific).
BRKIN	Hardware break in (Infineon-specific).
BRKOUT	Hardware break out (Infineon-specific).
/JEN	JTAG Enable (STMicroelectronics specific).
TSTAT	JTAG ISP Status (STMicroelectronics specific) (optional).
/RST	Chip reset (STMicroelectronics specific).
/TERR	JTAG ISP Error (STMicroelectronics specific) (optional).

[링크 : http://www.keil.com/support/man/docs/ulink2/ulink2_hw_connectors.htm]

[링크 : http://forum.falinux.com/zbxe/?document_srl=796669...]