STM8S103F3不能再编程

也许你的NRST引脚被硬件拉低了
我过去也有同样的问题
或者你有很高的阻抗
VCC和GND之间的连接点



以下为原文




maybe your NRST pin was Pulled down by hardware
i have same problem in the past
or you have high Impedance
junction between VCC and GND

嗨，非常感谢你的回答，
也许你的NRST引脚被硬件拉低了
你什么意思？为什么电路板会将NRST引脚从一瞬间拉到GND？正如我所说，我将NRST引脚拉低（通过跳线）以模仿SWIM初始化。
 
 
你能详细解释一下你过去如何解决这个问题吗？
 
最好的祝福



以下为原文




Hi and thanks alot for your answer,

maybe your NRST pin was Pulled down by hardware
What do you mean? Why should the board pull the NRST pin to GND from one moment to another? As i said i pulled the NRST pin to low (via a jumper wire) to mimic the SWIM-Initialization.


Could you explain in detail how you fixed the problem in the past, please?

Best regards

在我的情况下，重置按钮是刻录
所以我的MCU连续重置
但在你的情况下，我不知道这么多
我建议你在供应之前放一个安培表并测量电路板安培
所以你发现PCB的任何部分都是烧坏的
对不起我的英语



以下为原文




in my case the reset button was burn
so my MCU was reset Continuously
but in your case i dont know so much
i suggest you that put an amper meter before your supply and Measure the board amper
so you find that any part of you PCB is burn or not
Excuse me for my English

大家好，我对ST-Link V2和IAR有类似的问题，但在我的情况下有一些不同的东西。更具体地说，我使用4线ST-link：RST，SWIM，GND和5V用于第一种情况，3.3V用于第二种情况。
在第一种情况下，当我使用5VDC线时，我可以成功加载代码和调试，一切都很好。
但是，在第二种情况下，当我使用3.3VDC线加载代码时，IAR显示消息'
无法使用MCU名称STM8S105C6设置配置：SWIM错误[30006]：通信初始化错误：芯片无法应答
”。并且，如果我使用5V加载代码然后我使用3.3V供电，STM8S105C6仍然无法工作。似乎STM8S105C6不能在3.3V工作，而数据表显示它可以工作在2.9​​5V至5.5V。
这里有谁对这个问题有想法？
（
对不起我的英语
）
最好的祝福



以下为原文




Hi all, I have a similar problem with ST-Link V2 and IAR, but there are some diffirent things in my case. To be more specific, I use 4 wire of ST-link: RST, SWIM, GND and 5V for first case, 3.3V for second case.
In first case, when I use 5VDC line, I can load code and debug successfully, and everything is fine.
But, in second case, when I use 3.3VDC line to load code, IAR display the message '
Failed to set configuration with MCU name STM8S105C6: SWIM error [30006]: Comm init error: chip does not answer
'. And, if I use 5V to load code then I use 3.3V to supply power, STM8S105C6 still not work.It seems that STM8S105C6 cannot operate at 3.3V, while datasheet show that it can work from 2.95V to 5.5V.

Anyone here who has ideas to this problem?

(
Excuse me for my English
)
Best regards