MSP-GANG programmer屏幕上没有任何图案

MSP-GANG programmer屏幕上没有任何图案，就在昨天晚上，我还通过电，上面还是有图案的。请问这种情况该怎么解决？

灰小子：

建议先检查下看看是否有哪里接触不好

Butterfly：

通常是线没接好，你重新接下看看

Question: Why does device init, connect, or programming fail?

Answer: Frequently the cause is a bad connection between the MSP-GANG Programmer and the target device. A 14-wire ribbon cable is provided for JTAG/SBW or BSL connection between MSP-GANG and target device. The ribbon cable has an impedance of approximately 100 Ω and has DC lines in the ribbon cable to provide good isolation between signal wires (TDI, TCK, TMS, TDO). Each signal wire is separated by a DC wire to minimize crosstalk between the signal wires. The following pinout used in the MSP-GANG on each JTAG connector:

1 – TDO (Signal wire)

2 – Vcc / Vcc sense (DC wire)

3 – TDI (Signal wire)

4 – Vcc sense (DC wire)

5 – TMS (Signal wire)

6 – n/c (DC wire)

7 – TCK (Signal wire)

8 – TEST (DC wire in JTAG)

9 – GND (DC wire)

10 – n/c (DC wire)

11 – RESET (DC wire in JTAG)

12 – BSL-Tx (Signal wire)

13 – n/c (DC wire)

14 – BSL-Rx (Signal wire)

The provided 14-pin connector might not be ideal for some customers who want to minimize the number of wires and pinout order. When using a custom cable, make sure to address the issue of crosstalk between signal cables. Unfortunately, in many cases the custom cable does not provide good isolation between signal wires. As an example of a bad connection, the following uses an 8-wire ribbon cable for JTAG communication:

1 – Vcc / Vcc sense (DC wire)

2 – TDO (Signal wire)

3 – TDI (Signal wire)

4 – TMS (Signal wire)

5 – TCK (Signal wire)

6 – TEST (DC wire in JTAG)

7 – GND (DC wire)

8 – RESET (DC wire in JTAG)

On this connection, the TMS signal is coupled with the TCK and TDI lines and can generate additional TCK pulses on the TCK wire (rise time on TMS line can be seen on the TCK line also and can be detected by the MSP MCU as an additional unexpected TCK pulse).

Susan Yang：

请问您的问题解决了没有？根据您的描述应该是连接问题

jiawen tao：

回复 Butterfly:

理论上我没有接任何设备，只是单纯给烧录器上电的时候，屏幕上也会有图案的，以前的时候屏幕上面有8个通道的状态显示和内部所具有的的程序的名称显示的，现在上电之后如图所示什么都没有。还有我用的是SBW烧录的方式。

jiawen tao：

回复 Susan Yang:

理论上我没有接任何设备，只是单纯给烧录器上电的时候，屏幕上也会有图案的，以前的时候屏幕上面有8个通道的状态显示和内部所具有的的程序的名称显示的，现在上电之后如图所示什么都没有。还有我用的是SBW烧录的方式。

jiawen tao：

回复 灰小子:

只是给离线烧录器插了一根线，就是给他供电并且传输数据的那根线，理论上我没有接任何设备，只是单纯给烧录器上电的时候，屏幕上也会有图案的，以前的时候屏幕上面有8个通道的状态显示和内部所具有的的程序的名称显示的，现在上电之后如图所示什么都没有。