LeapFrog Pollux Platform: JTAG Kernel Boot - Revision history

Prpplague: /* Connect your JTAG Dongle */

2011-09-16T18:58:09Z

‎Connect your JTAG Dongle

2011-09-16T18:56:32Z

‎Connect your JTAG Dongle

2011-07-12T17:22:16Z

2011-07-12T17:18:23Z

2011-07-12T17:17:01Z

‎Connect your JTAG Dongle

2011-07-04T06:27:19Z

Spelling error

2011-05-09T15:26:39Z

Add Category Didj

2011-02-16T16:48:21Z

‎Introduction

2011-02-16T03:49:45Z

2010-09-02T04:55:25Z

‎Launch openocd

@@ Line 12: / Line 12: @@
 The connection between the device and your JTAG adapter may vary, please consult your adapters documentation.
-'''NOTE: if you don't have a usb JTAG device, you can purchase a [[Flyswatter]] from [http://www.tincantools.com TinCanTools for $49.95'''
+'''NOTE: if you don't have a usb JTAG device, you can purchase a [[Flyswatter]] from [http://www.tincantools.com TinCanTools] for $49.95'''
 = Build openocd =

← Older revision		Revision as of 18:56, 16 September 2011
Line 11:		Line 11:

	The connection between the device and your JTAG adapter may vary, please consult your adapters documentation.		The connection between the device and your JTAG adapter may vary, please consult your adapters documentation.
		+
		+	'''NOTE: if you don't have a usb JTAG device, you can purchase a [[Flyswatter]] from [http://www.tincantools.com TinCanTools for $49.95'''

	= Build openocd =		= Build openocd =

@@ Line 142: / Line 142: @@
   Starting the kernel...
   Uncompressing Linux....................................................... done, booting the kernel.
 [[Category:Didj]]

@@ Line 8: / Line 8: @@
 = Connect your JTAG Dongle =
-I soldered on a 20-pin ARM JTAG header to the pads discovered by others on this wiki:
+The connection between the device and your JTAG adapter may vary, please consult your adapters documentation.
-−
-<gallery widths=200px>
-Image:JTAG PADS.jpg|JTAG Test Pads
-Image:DidjTP103.png|nSRST Test Pad
-</gallery>
-−
-* JTAG on pads
-** TP8 - VREF
-** TP9 - nTRST
-** TP10 - TDI
-** TP11 - TMS
-** TP12 - TCK
-** TP13 - TDO
-** TP14 - GND
-** TP103 - nSRST (''on reverse side, below lcd connector'')
-−
-As an alternative to TP103, either side of R43 (jumper/0 Ohms) or the right pad of R45 (unpopulated) works.  This is near the other test pads.
-−
-For details on mapping these pins to a standard 20-pin ARM JTAG adapter, see http://www.jtagtest.com/pinouts/arm20.
-−
-I'll leave it up to you to figure out how the JTAG header connects to the dongle which connects to the PC :)
 = Build openocd =

@@ Line 40: / Line 40: @@
   tar xvzf libftdi-0.17.tar.gz
   cd libftdi-0.17/
-  ./configure --prefix /your/previx
+  ./configure --prefix /your/prefix
   make
   make install

← Older revision		Revision as of 15:26, 9 May 2011
Line 162:		Line 162:
	Starting the kernel...		Starting the kernel...
	Uncompressing Linux....................................................... done, booting the kernel.		Uncompressing Linux....................................................... done, booting the kernel.
		+	[[Category:Didj]]

@@ Line 5: / Line 5: @@
 = Introduction =
-The goal here is to be able to debug early boot code like lightning-boot and u-boot.  The plan is to get the JTAG on the Didj hooked up to my [http://www.sparkfun.com/commerce/product_info.php?products_id=7834 Olimex ARM-USB-OCD dongle] talking to [http://openocd.berlios.de/doc/html/index.html openocd], which works with gdb.  Here we go.
+The goal here is to be able to debug early boot code like lightning-boot and u-boot.  The plan is to get the JTAG on the Didj hooked up to my [http://www.sparkfun.com/commerce/product_info.php?products_id=7834 Olimex ARM-USB-OCD dongle] or [[Flyswatter]] talking to [http://openocd.berlios.de/doc/html/index.html openocd], which works with gdb.  Here we go.
 = Connect your JTAG Dongle =

@@ Line 59: / Line 59: @@
   source [find interface/olimex-arm-usb-ocd.cfg]
-  reset_config trst_only
+ # length of reset signal: [ms]
   if { [info exists CHIPNAME] } {
     set  _CHIPNAME $CHIPNAME