-------------------------------------------------------------------------------
JTAG / NXP LPC2148
---

---

This is a set of example captures of JTAG communication to a Keil MCB2140
eval board with a NXP LPC2148 (ARM7TDMI) microcontroller.

The JTAG adapter used was the FTDI FT2232H based Floss-JTAG (V0.2).

Details:
http://randomprojects.org/wiki/Floss-JTAG
http://www.keil.com/mcb2140/
http://www.nxp.com/products/microcontrollers/arm7/lpc2100/series/LPC2141_42_44_46_48.html

## Logic analyzer setup

The logic analyzer used was a Saleae Logic (at 4MHz):

Probe JTAG connector

---

1 (black) TRST#
2 (brown) TDI
3 (red) TMS
4 (orange) TCK
5 (yellow) TDO
6 (green) RST
7 (blue) RTCK

## keil_mcb2140_init.sr

The following OpenOCD command was used:

openocd -f interface/flossjtag-noeeprom.cfg -f board/keil_mcb2140.cfg \
 -c "init"

The sigrok command line used was:

sigrok-cli -d 0:samplerate=4mhz --time 5s \
 -p '1=TRST,2=TDI,3=TMS,4=TCK,5=TDO,6=RST,7=RTCK' -o <filename>

## keil_mcb2140_reset.sr

The following OpenOCD command was used:

openocd -f interface/flossjtag-noeeprom.cfg -f board/keil_mcb2140.cfg \
 -c "init" -c "poll off" -c "sleep 4000" -c "reset" -c "halt"

(only the last "reset" and "halt" are in the dump)

The sigrok command line used was:

sigrok-cli -d 0:samplerate=4mhz --time 5s \
 -p '1=TRST,2=TDI,3=TMS,4=TCK,5=TDO,6=RST,7=RTCK' -o <filename>

## keil_mcb2140_idle.sr

The following OpenOCD command was used:

openocd -f interface/flossjtag-noeeprom.cfg -f board/keil_mcb2140.cfg \
 -c "init"

The sigrok command line used was:

sigrok-cli -d 0:samplerate=4mhz --time 3s \
 -p '1=TRST,2=TDI,3=TMS,4=TCK,5=TDO,6=RST,7=RTCK' -o <filename>

sigrok-cli was only started a few seconds after the OpenOCD init/connection
to capture what happens when the user doesn't actively use OpenOCD commands.

## keil_mcb2140_irscan_drscan.sr

The following OpenOCD command was used:

openocd -f interface/flossjtag-noeeprom.cfg -f board/keil_mcb2140.cfg \
 -c "init" -c "poll off" -c "sleep 4000" -c "irscan lpc2148.cpu 0xe" \
 -c "drscan lpc2148.cpu 32 0"

This gets the 32bit contents of the IDCODE register (0b1110): 0x4f1f0f0f.

The sigrok command line used was:

sigrok-cli -d 0:samplerate=4mhz --time 5s \
 -p '1=TRST,2=TDI,3=TMS,4=TCK,5=TDO,6=RST,7=RTCK' -o <filename>
