8.10.00 J-TRACE ARM Segger Microcontroller Systems, 8.10.00 J-TRACE ARM Datasheet - Page 126

• Manufacturer Part Number: 8.10.00 J-TRACE ARM
• Description: JTAG EMULATOR ARM7/ARM9 ETM
• Manufacturer: Segger Microcontroller Systems
• Type: Emulatorr

Specifications of 8.10.00 J-TRACE ARM

• Contents: Emulation Module
• For Use With/related Products: ARM7, ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 899-1006

126
5.10.2.12JTAG_GetU32()
5.10.2.13JTAG_WriteClocks()
5.10.2.14JTAG_StoreClocks()
5.10.2.15JTAG_Reset()
5.10.2.16SYS_Sleep()
5.10.3 Global DLL variables
J-Link / J-Trace (UM08001)
Description
Gets 32 bits JTAG data, starting at given bit position.
Prototype
__api__ int JTAG_GetU32(int BitPos);
Description
Writes a given number of clocks.
Prototype
__api__ int JTAG_WriteClocks(int NumClocks);
Description
Stores a given number of clocks in the DLL JTAG buffer.
Prototype
__api__ int JTAG_StoreClocks(int NumClocks);
Description
Performs a TAP reset and tries to auto-detect the JTAG chain (Total IRLen, Number of
devices). If auto-detection was successful, the global DLL variables which determine
the JTAG chain configuration, are set to the correct values. For more information
about the known global DLL variables, please refer to Global DLL variables on
page 126.
Note:
add the core to the JTAG chain), which is lost at a TAP reset.
Prototype
__api__ int JTAG_Reset(void);
Description
Waits for a given number of miliseconds. During this time, J-Link does not communi-
cate with the target.
Prototype
__api__ int SYS_Sleep(int Delayms);
The script file feature also provides some global variables which are used for DLL
configuration. Some of these variables can only be set to some specifc values, other
ones can be set to the whole datatype with. In the following all global variables and
their value ranges are listed and described.
This will not work for devices which need some special init (for example to
CHAPTER 5
© 2004-2011 SEGGER Microcontroller GmbH & Co. KG
Working with J-Link and J-Trace