8.13.00 J-TRACE FOR CORTEX-M3 Segger Microcontroller Systems, 8.13.00 J-TRACE FOR CORTEX-M3 Datasheet - Page 157

• Manufacturer Part Number: 8.13.00 J-TRACE FOR CORTEX-M3
• Description: EMULATOR JTAG/SWD CORTEX M3
• Manufacturer: Segger Microcontroller Systems
• Type: Emulatorr

Specifications of 8.13.00 J-TRACE FOR CORTEX-M3

• Contents: Emulation Module
• For Use With/related Products: ARM7, ARM9, Cortex
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2.1.3 Recommended init sequence
J-Link / J-Trace (UM08001)
Clearly 1. is the easiest solution and is recommended.
This information is applicable to the following devices:
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In order to work with an ATMEL AT91SAM7 device, it has to be initialized. The follow-
ing paragraph describes the steps of an init sequence. An example for different soft-
ware tools, such as J-Link GDB Server, IAR Workbench and RDI, is given.
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Samples
GDB Sample
# connect to the J-Link gdb server
target remote localhost:2331
monitor flash device = AT91SAM7S256
monitor flash download = 1
monitor flash breakpoints = 1
# Set JTAG speed to 30 kHz
monitor endian little
monitor speed 30
# Reset the target
monitor reset 8
monitor sleep 10
# Perform peripheral reset
monitor long 0xFFFFFD00 = 0xA5000004
monitor sleep 10
# Disable watchdog
monitor long 0xFFFFFD44 = 0x00008000
monitor sleep 10
# Initialize PLL
monitor long 0xFFFFFC20 = 0x00000601
monitor sleep 10
monitor long 0xFFFFFC2C = 0x00480a0e
monitor sleep 10
monitor long 0xFFFFFC30 = 0x00000007
monitor sleep 10
monitor long 0xFFFFFF60 = 0x00480100
monitor sleep 100
# Setup GDB for faster downloads
#set remote memory-write-packet-size 1024
set remote memory-write-packet-size 4096
set remote memory-write-packet-size fixed
monitor speed 12000
break main
load
continue
results.
AT91SAM7S (all devices)
AT91SAM7SE (all devices)
AT91SAM7X (all devices)
AT91SAM7XC (all devices)
AT91SAM7A (all devices)
Set JTAG speed to 30kHz
Reset target
Perform peripheral reset
Disable watchdog
Initialize PLL
Use full JTAG speed
© 2004-2011 SEGGER Microcontroller GmbH & Co. KG
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