How can I simulator my DK ？ I try keil v4 via soft or jlink but failed. Need your help .

Question

Copy nrf51.cdb to "C:\Keil\UV4" 
 Copy nrf51xxx.flm to "C:\Keil\ARM\Flash" 
 Set the keil project-device to nRF51822(data base : Nordic nRF Series Devices) 
 
 This is the logo of Jlink+keil: 
 It alarm that:“ error ： Flash download failed-"Cotex-M0"” 
 Load "F:\AAA_BLE
rf51_sdk_v4_4_2_33551
rf51822\Board
rf6310\ble\ble_app_hids_mouse\arm\_build\ble_app_hids_mouse.AXF"
Set JLink Project File to "F:\AAA_BLE
rf51_sdk_v4_4_2_33551
rf51822\Board
rf6310\ble\ble_app_hids_mouse\arm\JLinkSettings.ini" 
 JLink info: 
 DLL: V4.15n, compiled Jun 18 2010 19:55:09
Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
Hardware: V7.00
S/N : 20090928
Feature(s) : RDI,FlashDL,FlashBP,JFlash,GDBFull 
 
 JLink Info: Found SWD-DP with ID 0x0BB11477
**JLink Warning: RESET (pin 15) high, but should be low. Please check target hardware. 
 JLink Info: Found SWD-DP with ID 0x0BB11477
**JLink Warning: No matching core found.
***JLink Error: Wrong ROM location (15:2). Expected 0xE00FF003, Found 0xF0000003
ROMTableAddr = 0x0 
 
 Target info: 
 Device: nRF51822
VTarget = 3.300V
State of Pins:
TCK: 0, TDI: 1, TDO: 1, TMS: 0, TRES: 1, TRST: 1
Hardware-Breakpoints: 0
Software-Breakpoints: 2048
Watchpoints: 0
JTAG speed: 1000 kHz 
 Cannot setup Breakpoint at Address
Cannot setup Breakpoint at Address
Erase Failed!
Load "F:\AAA_BLE
rf51_sdk_v4_4_2_33551
rf51822\Board
rf6310\ble\ble_app_hids_mouse\arm\_build\ble_app_hids_mouse.AXF"
Set JLink Project File to "F:\AAA_BLE
rf51_sdk_v4_4_2_33551
rf51822\Board
rf6310\ble\ble_app_hids_mouse\arm\JLinkSettings.ini" 
 JLink info: 
 DLL: V4.15n, compiled Jun 18 2010 19:55:09
Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
Hardware: V7.00
S/N : 20090928
Feature(s) : RDI,FlashDL,FlashBP,JFlash,GDBFull 
 
 JLink Info: Found SWD-DP with ID 0x0BB11477
**JLink Warning: RESET (pin 15) high, but should be low. Please check target hardware. 
 JLink Info: Found SWD-DP with ID 0x0BB11477
**JLink Warning: No matching core found.
***JLink Error: Wrong ROM location (15:2). Expected 0xE00FF003, Found 0xF0000003
ROMTableAddr = 0x0 
 
 Target info: 
 Device: nRF51822
VTarget = 3.300V
State of Pins:
TCK: 0, TDI: 1, TDO: 1, TMS: 0, TRES: 1, TRST: 1
Hardware-Breakpoints: 0
Software-Breakpoints: 2048
Watchpoints: 0
JTAG speed: 1000 kHz 
 Cannot setup Breakpoint at Address
Cannot setup Breakpoint at Address
Erase Failed!

Ole Morten · Accepted Answer

You need to upgrade Keil and/or the Segger tools. According to the log posted, you have version 4.15 of the Segger DLL, which is extremely old and does not support the nRF51. You can get updated Segger tools from Segger.com, but I suspect that you Keil version is also too old, so you may be better off downloading a new Keil version. 
 I'd recommend you to try the latest Segger tools, 4.80, and Keil at least version 4.74.