Hello
I am very new to JTAG and i am trying to do the setup for jtag in beaglebone black(BBB) rev c board using buspirate(BP) and openocd.
I have installed the P2 header in BBB manually. I have connected the BBB and BP as follows
JTAG | BP | BBB |
- | - | - |
TMS | CS | P2(1) P2 header pin 1 |
TDI | MOSI | P2(3) |
VTREF | VPU | P2(5) |
TDO | MISO | P2(7) |
TCK | CLK | P2(11) |
TRST | AUX | P2(2) |
GRND | GND | P2(10)
|
I am using my user configuration file(BP_userconfig.cfg) for openocd which has following content.
source [find interface/buspirate.cfg]
buspirate_vreg 0
buspirate_mode open-drain
buspirate_pullup 1
reset_config srst_only
buspirate_port /dev/ttyUSB0
source [find board/ti_beaglebone_black.cfg]
Now while running the command sudo openocd -f BP_userconfig.cfg I am getting following error.
lenova@lenova-ThinkPad-T410:~/jiten/JTAG$ sudo openocd -f BP_userconfig.cfg
Open On-Chip Debugger 0.10.0+dev-00167-g29cfe9c (2017-07-20-14:08)
Licensed under GNU GPL v2
For bug reports, read
_**http://openocd.org/doc/doxygen/bugs.html**_
Warn : Adapter driver ‘buspirate’ did not declare which transports it allows; assuming legacy JTAG-only
Info : only one transport option; autoselect ‘jtag’
srst_only separate srst_gates_jtag srst_open_drain connect_deassert_srst
trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srst
adapter speed: 1000 kHz
trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srst
Info : Buspirate Interface ready!
Info : This adapter doesn’t support configurable speed
Info : JTAG tap: am335x.jrc tap/device found: 0x2b94402f (mfg: 0x017 (Texas Instruments), part: 0xb944, ver: 0x2)
Info : JTAG tap: am335x.dap enabled
Error: JTAG-DP STICKY ERROR
Error: Could not initialize the APB-AP
Does anyone have any idea about this error? and do i need to do anything else in BBB apart from installing P2 header?
Please let me know if i am doing anything wrong.
Thanks in advance.
Regards
jitendriya