stm8a, why do you let me down so much? ? ? ? (MCU automatically resets,)

qiufeng

stm8a, why do you let me down so much? ? ? ? (MCU automatically resets,) [Copy link]

During the program running, the MCU resets automatically out of order, and the value of the reset register RST_SR is 0. The oscilloscope is used to observe the power supply of the MCU, and NRST is very clean.
I carefully found the reset sentence in the program and found that
1 CurPinStat.byaData[0] = 0x00;
2 CurPinStat.byaData[1] = 0x00;
3 CurPinStat.byaData[2] = 0x00;
4 // CurPinStat.byaData[3] = 0x00;
The fourth sentence, as long as it is added to the program, the system will reset very frequently. Why, for the same array, the fourth sentence cannot be assigned a value, while the first three sentences can work. I don’t understand.
If I didn’t define CurPinStat.byaData[3] before, the program should run away, which would lead to a watchdog reset, and the reset register RST_SR should not read 0.
Please help me. . . . . . .

无域思维

The array of CurPinStat.byaData[3]

overflowed, didn't it? This has nothing to do with stm8, it's purely C language

chenyi9258

Defining CurPinStat.byaData[3] means that you can only use 3 cells. Using the fourth cell will cause the array to overflow, and you will get unpredictable results.

It is best for you to learn C language well first.

memphysto

Defining CurPinStat.byaData[3] means that you can only use 3 cells. Using the fourth cell will cause the array to overflow, and you will get unpredictable results.

It is best for you to learn C language better first.
Perfume City posted on 2010-4-2 15:33

I will not define only CurPinStat.byaData[3]. If the so-called experts of ST can only discuss this aspect with me, then there is nothing I can do. It is not me who says that the MCU of ST is bad. I called the technical support of ST headquarters and asked them which car system the STM8A MCU has been successfully used in. The answer was...

This paragraph is indeed nonsense. Haha, STM8 has only been launched for a short time, so it is normal even if it is not available.

The one who messed up the place...

This is most likely a problem with the OP's program.

Haha, just for fun.
However, I guess the original poster has found the cause of the problem, so he is too embarrassed to reply to this thread.

STM8 is at most a modified 51, but it won't be so inferior. Its predecessor ST7 can be certified.
As for the compiler, it won't make such a low-level mistake. This is an international joke.

I have used KEIL C51 for so many years, from the DOS era to the XP era, and witnessed many bugs in KEIL. I have never made such a low-level bug.

I guess it's the original poster's problem, but I really can't praise the compiler of stm8s. . .

Compiler Problems

STM8, I have never used it

CurPinStat.byaData[4] should be defined

I guess it's the original poster's problem, but I really can't praise the compiler of stm8s. . .

stm8a, why do you let me down so much? ? ? ? (MCU automatically resets,)

tianhj2001

I will not define only CurPinStat.byaData[3]. If the so-called experts of ST can only discuss this aspect with me, then there is nothing I can do. It is not me who says that the MCU of ST is bad. I called the technical support of ST headquarters and asked them which car system the STM8A MCU has been successfully used in. The answer was...

This paragraph is indeed nonsense. Haha, STM8 has only been launched for a short time, so it is normal even if it is not available.

kevinliu

                                 The one who messed up the place...

zyalxl

                                 This is most likely a problem with the OP's program.

snailsnail

Haha, just for fun.
However, I guess the original poster has found the cause of the problem, so he is too embarrassed to reply to this thread.

kittyzhang010

STM8 is at most a modified 51, but it won't be so inferior. Its predecessor ST7 can be certified.
As for the compiler, it won't make such a low-level mistake. This is an international joke.

I have used KEIL C51 for so many years, from the DOS era to the XP era, and witnessed many bugs in KEIL. I have never made such a low-level bug.

wowhoo

                                 I guess it's the original poster's problem, but I really can't praise the compiler of stm8s. . .

laowen_110

                                 Compiler Problems

csfcsf

                                 STM8, I have never used it

lyfly_away

CurPinStat.byaData[4] should be defined

DSCX05

  I guess it's the original poster's problem, but I really can't praise the compiler of stm8s. . .