求教各位高手
我用的JLINK连接TMS570LS1227的JTAG接口,用了好几天烧写程序仿真都没有问题!
今天突然连不上了,在Jflash中发送“connect”命令后,出现如下错误提示:
Connecting ...
- Connecting via USB to J-Link device 0
- J-Link firmware: J-Link V9 compiled Oct 25 2018 11:46:07
- Device "TMS570LS1227" selected.
- Executing InitTarget()
- TotalIRLen = 6, IRPrint = 0x01
- J-Link script: ICEPick found, enabling DAP of CPU core.
- TotalIRLen = 10, IRPrint = 0x0011
- JTAG chain detection found 2 devices:
- #0 Id: 0x4BA00477, IRLen: 04, CoreSight JTAG-DP
- #1 Id: 0x3B95502F, IRLen: 06, TI ICEPick
- Identified core does not match configuration. (Found: None, Configured: Cortex-R4)
- Executing InitTarget()
- TotalIRLen = 6, IRPrint = 0x01
- J-Link script: ICEPick found, enabling DAP of CPU core.
- TotalIRLen = 10, IRPrint = 0x0011
- JTAG chain detection found 2 devices:
- #0 Id: 0x4BA00477, IRLen: 04, CoreSight JTAG-DP
- #1 Id: 0x3B95502F, IRLen: 06, TI ICEPick
- ERROR: Could not power up debug port: Control/Status register reads 00000F02
- Target interface speed: 1000 kHz (Auto)
- VTarget = 3.291V
- Executing InitTarget()
- TotalIRLen = 6, IRPrint = 0x01
- J-Link script: ICEPick found, enabling DAP of CPU core.
- TotalIRLen = 10, IRPrint = 0x0011
- JTAG chain detection found 2 devices:
- #0 Id: 0x4BA00477, IRLen: 04, CoreSight JTAG-DP
- #1 Id: 0x3B95502F, IRLen: 06, TI ICEPick
- Identified core does not match configuration. (Found: None, Configured: Cortex-R4)
- Executing InitTarget()
- TotalIRLen = 6, IRPrint = 0x01
- J-Link script: ICEPick found, enabling DAP of CPU core.
- TotalIRLen = 10, IRPrint = 0x0011
- JTAG chain detection found 2 devices:
- #0 Id: 0x4BA00477, IRLen: 04, CoreSight JTAG-DP
- #1 Id: 0x3B95502F, IRLen: 06, TI ICEPick
- ERROR: Could not power up debug port: Control/Status register reads 00000F02
- ERROR: Failed to connect.
Could not establish a connection to target.
现在测量我的最小系统内3.3V、1.2V、16Mhz均正常,网上说是有可能JTAG死锁,TMS570貌似没有加密的功能呀!
请教各位高手帮忙看一下
多谢多谢!