Part Number:TMS320F28069
28069,使用仿真器XDS100V3
连接不上仿真器,,报错如下:
PCB是自己打的,10块里面,可能有3、4块出现这种问题,其他都可以
能帮忙分析一下吗
Texas Instruments XDS100v3 USB Debug Probe/C28xx
Susan Yang:
关于该错误,请参考
http://software-dl.ti.com/ccs/esd/documents/ccsv7_debugging_jtag_connectivity_issues.html#invalid-data-read-back
您现在回读数据是多少?
,
NormalOne:
(Error -233 @ 0x0)
0X0?
是指这个吗?
If the data read back is all zeros (0x00000000), it is possible there is a power failure on the circuit or one of the JTAG lines has a short to GND.
,
Susan Yang:
是的,您的回读数据全是00?
,
NormalOne:
是的,但是量了电源这里,没发现问题,
对比两块PCB,可以烧录,和连接异常的,电源电平是一致的
,
NormalOne:
The scan-path will be reset by toggling the JTAG TRST signal.The controller is the FTDI FT2232 with USB interface.The link from controller to target is direct (without cable).The software is configured for FTDI FT2232 features.The controller cannot monitor the value on the EMU[0] pin.The controller cannot monitor the value on the EMU[1] pin.The controller cannot control the timing on output pins.The controller cannot control the timing on input pins.The scan-path link-delay has been set to exactly '0' (0x0000).
An error occurred while hard opening the controller.
—–[An error has occurred and this utility has aborted]——————–
This error is generated by TI's USCIF driver or utilities.
The value is '-233' (0xffffff17).The title is 'SC_ERR_PATH_BROKEN'.
The explanation is:The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.An attempt to scan the JTAG scan-path has failed.The target's JTAG scan-path appears to be brokenwith a stuck-at-ones or stuck-at-zero fault.
[End: Texas Instruments XDS100v3 USB Debug Probe_0]
把JTAG部分,按照datesheet修改了一下阻值,
现在报The value is '-233' (0xffffff17).The title is 'SC_ERR_PATH_BROKEN'.
,
Susan Yang:
错误消息表示从设备的 JTAG 控制器读回的数据始终显示逻辑电平“1”(卡在 1),从而表明 TDI 或 TDO 卡在 Vcc(可能短路,可能是仿真器或其 JTAG 电缆被卡住)损坏,或者电路板可能有一个低 Ω 的上拉电阻)。
NormalOne 说:和连接异常的,电源电平是一致的
您测量的是哪个电压?
,
NormalOne:
将13 EMU0、14脚 EMU1,3.3v对地电阻,4.7K更换为10K电阻,就好了
但是其他没改的板子,4.7K电阻也是OK的
,
Susan Yang:
NormalOne 说:将13 EMU0、14脚 EMU1,3.3v对地电阻,4.7K更换为10K电阻,就好了
谢谢您的反馈,很高兴您能解决问题
,
NormalOne:
我还有个问题
(1) TMS320F28069: .OUT文件合并方法 – C2000︎ 微控制器论坛 – C2000 微控制器 – E2E 设计支持 (ti.com)
您有时间帮我看一下
,
Susan Yang:
已经回复了,请您查看一下
相关推荐
- TMS320F28069: 作为host保存csv格式文件到U盘
- TMS320F28069: 有关CCS上对齐线设置问题
- TMS320F28069: 大佬们,DSP有没有电源监测功能?
- TMS320F28069: TMS320F28069PNT
- TMS320F28069M: launchpad Side B EEPROM Program失败
- TMS320F28069: FLASH烧录问题
- TMS320F28069F: 使用28069F在instaspin-foc中加入CAN程序后,程序运行卡死在CAN初始化中的while(ECanaShadow.CANES.bit.CCE != 1 )循环为什么
- TMS320F28069: #10247-D