TI中文支持网Part Number:TMS470R1B1MOther Parts Discussed in Thread: SEGGER
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
Yale Li：
I already post these issue to the relevant engineer:
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
Thanks for your patience.
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xiaolong zhao：
Hello, I can't reply to the question on the link you sent, I can't reply.
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Yale Li：
You can reply here and I will transfer it.
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xiaolong zhao：
There are two TMS470R1B1M chips, both of which can't download the program, and they are stuck in the busy interface during the process of downloading the program.
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
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xiaolong zhao：
Because the program can't be downloaded, it seriously affects the progress of the project and needs to be solved urgently. Thank you.
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xiaolong zhao：
Please transfer it for me, thank you. Or, is there any other way to contact the relevant technical engineer?
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Yale Li：
I have already transferred. If you need faster support, pls contact with your FAE.
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xiaolong zhao：
Okay, thank you.
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Yale Li：
you are welcome
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xiaolong zhao：
Hello, here are my answers to all the questions.
1.This chip TMS470R1B1M is used for the first time.
2.This chip TMS470R1B1M has not been used in other projects. At first, you can successfully link MCU and download the code, but you can't download it after a period of use.
3.The device have proper OSC.
The following figure is the schematic diagram of clock configuration.
Clock program configuration：
4.During the normal debugging of the program, the chip suddenly failed to download the program.
The device does not adopt low power consumption mode.
In the process of program debugging, the content of the program has not changed anything, but the delay has been added, which will not cause anything to the chip.
5.During the debugging of the program, the hardware circuit board was placed on the table without moving or touching.
It is not a J-link debug probe issue, and it's normal.
6.Is the normal download program.
The flash program is loaded, but it is not called in the program. Does it affect the chip?
The following picture is about the loaded flash program.
7.I don't understand what ID means.
I don't quite understand the meaning of the last question. Can you be specific? Thank you.
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xiaolong zhao：
Please transfer it for me, thank you.
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xiaolong zhao：
The problem of downloading single-chip computer programs has been solved for a long time, which seriously affects the progress of the project. Is there any other contact way to solve this problem?
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xiaolong zhao：
I didn't find the data manual corresponding to this picture in official website. Can you send it to me?，thank you.
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Yale Li：
OK, I have already done that.
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xiaolong zhao：
1.I still don't quite understand why the program can't be downloaded suddenly; In response to this question, I have seen other people in TI official website ask this question, but there is no substantive answer; This problem has been bothering us for some time, which seriously affects the progress of the project and needs to be solved urgently. Thank you.
2.I didn't find the data manual corresponding to this picture in official website. Can you send it to me?，thank you.
3.Others asked questions, in official website, TI，you can have a look.
Failed to measure cpu clock frequency – Space & High Reliability Forum (Read Only) – Space & High Reliability (Read Only) – TI E2E support forums 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
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xiaolong zhao：
Please transfer it for me, thank you.
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Yale Li：
OK, I have already done that.
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xiaolong zhao：
Why can't answer my questions seriously? They are all irrelevant answers. The single-chip computer program can't be downloaded, which is a very serious problem. I need to seek help for several days. There is no substantive solution to the problem, but it is perfunctory.
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xiaolong zhao：
If this person can't solve the problem, you can give me another person to solve the problem, which will seriously affect the progress of the work.
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Yale Li：
You post your question here, and I transfer. That is all I can do.
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xiaolong zhao：
I have described the problem, but no one has solved it. Can you hurry him up? Because the single-chip microcomputer can't be used, the project has stopped, which has caused serious consequences.
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xiaolong zhao：
What I need is to solve the problem. I know you transfered, but he didn't solve it.
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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.Please transfer it for me, thank you.
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Yale Li：
Sorry, I don't understand what you exactly want to ask. Pls clarify, thanks.
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xiaolong zhao：
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
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.
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Yale Li：
OK
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xiaolong zhao：
I don't think this has anything to do with the expiration of the license; I used two single-chip computers on the same computer, and they all had the same problem. They all worked for a while and stopped working, which means its MCU, not IAR.
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xiaolong zhao：
Please transfer it for me, thank you.
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Yale Li：
OK
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xiaolong zhao：
MCU can't download the program, let me describe it in detail.
MCU works for about twenty days.
In order to illustrate the problem, it is tested with a new motherboard and a new MCU. The phenomenon is the same, that is, the program cannot be downloaded. As long as the MCU is new, you can download the program, but only for a while. The operating voltage and current of the motherboard are normal.
Everything is normal in the operation process, and there are no steps that may cause the MCU to stop working, because the motherboard and power supply are placed on the desktop, and they are not touched. They just click to download the program normally, and suddenly they cannot download it.
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xiaolong zhao：
Please transfer it for me, thank you.
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Yale Li：
OK
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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
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xiaolong zhao：
The problem has not been solved. Why did you delete it? It has not been solved for more than ten days.
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Yale Li：
We do not delete the thread. Just the owner move it to internal forum because he'd like to see some details that you might not want to show to the public forum. I will transfer it between you and our engineer.
As we mentioned earlier, this is a very old device and we do not recommend to new design. The stock just for the design which had been already produced. Where did you get this project? Is it a new design or old?
Where did you buy these two devices?
The status of the thread link you posted related to this issue is resolved or resolved off line, you can reference it and try to see if it works. The reason maybe is the same or maybe not. But it is not your case, It is other people's. Our support is a remote debug, It is more like leading, other than giving. You have to do something, do some test by yourself, and share what you try to do and the related phenomenon, than we discuss it together. But you just repeat and repeat, again and again. You think the way to resolve the issue is we give you an answer directly and then the issue disappear. In the most of cases, that could not happen. That's not a way to resolve the issue.
In fact, the number of the devices, 2, is a very small numbers. It can not mean anything.
What have you do before these devices can not work? It just can not work 'suddenly'? What's the operation? How do you make it works normally? And vice versa?
—
Thanks
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xiaolong zhao：
First of all, you turned the link into internal without telling me. Informing me in advance is the most basic polite question. I thought it was deleted because I couldn't open it.Secondly, the single-chip computer I use is SM470R1B1M, which is a new device and used for new design. I have made it very clear that everything is normal except that the single chip microcomputer can't download the program.Finally, you say me again and again. It's been more than ten days, but the problem has not been solved. Have you taken it seriously? I went through various tests before I asked for help in official website, TI.
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xiaolong zhao：
The link can't be opened
e2e.ti.com/…/tms470r1b1m-mcu-program-cannot-be-downloaded
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xiaolong zhao：
A long time ago, I said, is there any other contact way? This reply will affect efficiency too much and waste a lot of time.
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xiaolong zhao：
Every time I answer questions seriously, do you read them carefully? I have described it clearly, and you answered irrelevant questions。
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Yale Li：
Where did you get these two devices?
