SM470R1B1M-HT: How to flash the TMS470R1B1M using Jlink?

I saw several people talking about this problem in official website, TI. This is not a case. I need to ask for help, because the program can't be downloaded and the project stops, which has caused serious consequences.

Question:

（1）TMS470R1B1M microcontroller is stuck in the Busy interface during the program debugging, and the program cannot be downloaded. At present, two single-chip computers have the same problem. At first, the single-chip computer program can be downloaded, after a period of use, the program can't be downloaded.

Phenomenon:

the working voltage and current of the circuit board are normal, the output signal of the crystal oscillator is normal, and the two reset pins are normal, but the program cannot be downloaded.

（2）With SEGGER J-Flash connection, prompt:

Could not detect CPU clock speed.Readback of test code download into RAM failed.

Failed to measure CPU clock frequency

Failed to connect

xiaolong zhao：

https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/530086/how-to-flash-the-tms470r1b1m-using-jlink

https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/475082/failed-to-measure-cpu-clock-frequency?keyMatch=FAILED%20TO%20MEASURE%20CPU%20CLOCK%20FREQUENCY

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1047525/sm470r1b1m-ht-iar-j-link-download-failed/3876750#3876750

This is only part of the link, it's all the same question.

,

Ben Qin：

你好，我查找下相关资料，稍后回复您。

,

xiaolong zhao：

Thank you, I am waiting for your reply.

,

Ben Qin：

请看下面这个链接：

(+) TMS470R1B1M: MCU program cannot be downloaded – Arm-based microcontrollers forum – Arm-based microcontrollers – TI E2E support forums

,

xiaolong zhao：

I sent this link you sent, and the problem has not been solved.

,

Ben Qin：

链接中的问题跟你的问题似乎是一样的，还请关注链接中的回复。

,

xiaolong zhao：

The question in the link was raised by me and only forwarded by the customer service.The problem has not been solved, and I need technical support.

,

Ben Qin：

您的问题已有相关工程师在支持了，有任何问题可以到原帖咨询，重复的问题请不要重复发帖。

,

xiaolong zhao：

Hello, why can't the link be opened?

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1244624/tms470r1b1m-mcu-program-cannot-be-downloaded

,

xiaolong zhao：

The problem has not been solved. Why did you delete it? It has not been solved for more than ten days.

,

Ben Qin：

我查看一下

,

Ben Qin：

帖子被转移到了内部进行讨论，因为涉及到了一些不适合公开的信息。还请关注原中文帖的回复。