J-Link ColdFire

J-Link ColdFire® BDM 26 is a USB powered BDM emulator for ColdFire® cores. It connects via USB to the Windows (2000/XP/Vista) PC host.

Features

USB 2.0 interface
Easy to use: Fully plug and play compatible
Any ColdFire® V2/3/4 supported
Download speed up to 120 Kbytes/second
Seemless integration into IAR Embedded Workbench
No power supply required, powered thorugh USB
5V Power can be supplied to the target (on pin 1, KS-power)
Maximum interface speed: 2 MHz (Multilink: 1 MHz)
Automatic core recognition
All interface signals can be monitored and target voltage can be measured
A 26-pin standard connector
A USB and 26-pin flat cable included
Wide target voltage range: 1.2V - 5V
J-Mem (live memory view/edit) included
A J-Link server (connects J-Link via TCP/IP) included
A Software Developer Kit (SDK) available: write your own application using JLink, directly accessing the core
Flash download: debugger can download into internal ColdFire®-flash
Applications can be debugged in RAM or flash

Documentation download Subscribe to J-Link ColdFire software notification

J-Link ColdFire BDM 26 download speed

The following table lists performance values (Kbytes/second) for writing to memory (RAM): Hardware Memory download J-Link Rev. 1 120 kBytes/second The actual speed depends on various factors, such as BDM frequency, target CPU speed, host system used etc.

Checking functionality

The JlinkCF.exe file can be used to connect to the ColdFire® chip. Simple commands, such as memory dump, halt, step, go, Id-check can be used to verify proper installation of the USB driver and to verify the connection to the ColdFire® chip, as well as for simple analysis of the target system.

BDM interface connection (26 pin)

J-Link has a standardized BDM connector, defined by Freescale. The BDM connector is a 26 way Insulation Displacement Connector (IDC) keyed box header (2.54mm male) that mates with IDC sockets mounted on a ribbon cable.

BDM interface connector signals :

Pin	Signal	Type	Description
1	5V-Supply	-	Target power supply
2	BKPT	Output	Breakpoint
4	DSCLK	Output	Development Serial Clock
6	NC	-	Developer reserved
7	RESET	I/O	Reset
8	DSI	Output	Development Serial Input
9	+5V	-	Voltage supply
10	DSO	Input	Development Serial Output
12	PST3	Input	Processor Status
13	PST2	Input	Processor Status
14	PST1	Input	Processor Status
15	PST0	Input	Processor Status
16	DDATA3	Input	Debug Data
17	DDATA2	Input	Debug Data
18	DDATA1	Input	Debug Data
19	DDATA0	Input	Debug Data
21	NC	-	Motorola reserved
22	NC	-	Motorola reserved
24	CLK_CPU	Input	CPU Clock
25	VCC_CPU	-	CPU Voltage
26	TEA	Output

Pins 3, 5, 11, 20, 23 are connected to GND.

Notes

All pins marked NC are not connected inside J-Link. Any signal can be applied here; J-Link will simply ignore such a signal.

All GND pins must be connected to 0V on the target board.

Specifications

Power Supply	USB powered <50mA
USB Interface	USB 2.0, full speed
Target Interface	BDM 26-pin
Serial Transfer Rate between J-Link and Target	up to 2MHz
Supported Target Voltage	1.2 - 3.3 V (5V adapter available)
Operating Temperature	+ 5 °C ... + 60 °C
Storage Temperature	- 20 °C ... + 65 °C
Relative Humidity (non-condensing)	< 90% rH
Size (without cables)	100 x 53x 27mm
Weight (without cables)	70g
Electromagnetic Compatibility (EMC)	EN 55022, EN 55024
Supported OS	Microsoft Windows 2000 Microsoft Windows XP Microsoft Windows XP x64 Microsoft Windows 2003 Microsoft Windows 2003 x64 Microsoft Windows Vista Microsoft Windows Vista x64