STM8 MCUs

Hello to everyone, when I get started recording session, it runs for few seconds then it stops and I need to restart. Someone has sort this issue out? ThanksFabio (english and italian)

Hi, I am not sleeping this microcontroller. I search example code but I couldnt find it please help me. Thanks.

please help me and tell what i want to do.....

When we debug with ST-link/V3set on STVD, we found this issue swim prog error[42007] buffer program error.but we didn't found this issue with ST-link/V2.How does solve this issue when we used the ST-link/V3set ?

How for example do I initialize all 3 devices, where addressing and necessary parameters are concerned.  Any sample code or advice in this regard would be very welcome. (RTC : either PCF8563 or DS1307; I2C LCD with PCF8574 expander and 24c32 or 24c64 EEPROMS)

I'm using the Cosmic Software 4.4.9.0 in ST Visual Develop 4.3.12  I can't compile it.I try to install again but it showing same error.i tried to set root path correct like this C:\Program Files\COSMIC\FSE_compilers\CXSTM8.Can any one help me to solve this error.My error is:---------- Project test - STM8 Cosmic - Configuration Debug -------------Compiling uartcom\uartcom.c...cxstm8 +modsl0 +debug -pxp +compact -pp -l -icalibration -ichargercom -iinternal_eeprom -iuartcom -imppt -ispi -i..\pcu1\adc -i"c:\program files\cosmic\cxstm8 -icalibration -ichargercom -iinternal_eeprom -iuartcom -imppt -ispi -i..\pcu1\adc _32k\hstm8" -i"c:\program files\stmicroelectronics\st_toolset\include" -itimer4 -itimer3 -itimer2 -itimer1 -ilcd_lampex -iisr -igpio -iexti -idma -idelay -iclock -ichangeover -iadc -i"C:\Program Files\COSMIC\FSE_Compilers\CXSTM8\Hstm8" -clDebug\ -coDebug\ uartcom\uartcom.c

HelloI get this error when i'm debugging, and trying to go step by step. Sometimes it's also about Read Protection. What does it mean exactly, and what can i do about it?

In the documentation for switching to low power run mode it mentions that you need to jump to code in RAM before shutting down the FLASH.How do you specify that code should be placed in RAM?OK Update:This is for the STM8L151F3.I found link to a suggested way to do it (http://www.cosmic-software.com/faq/faq4.php)I finally got it to build but when I use STVP it does not give me access to the RAM area.Am I going to have to make relocating code before the jump?Why does ST not have an example of how to do what the specify must be done to go into LP run or LP halt modes?

Good morning.STM8S003: https://www.st.com/resource/en/datasheet/DM00024550.pdfOn a page 45 under table 15 (quote):"2. Do not use more than one remapping option in the same port. It is forbidden to enable both AFR1 and AFR0."Here first part of the sentence contradicts second. Why? See table 15: PA and PD (AFR1) do not cross with PC (AFR0). Mistake in documentation?

 >>The Board is working fine when there is no AC (220v) load Connected; but with AC Load Connected, then MCU resets during switchingSame type of switch boards are available online containing stm8 but i havent experienced these boards regarding such an issue and i also i dont know about there design.... my schematic and PCB is attached.kindly tell me where my design need modification or correction...Thanks:)

How are  STLINK-V3SET self power connection?ST Visual Develop(4.3.12) or ST Visual Programmer(3.4.1) unknow self power selection.Please ask after comfirm.Thanks.

Hello,On STM8S103F3 MCU I, might have found a bug in the WWDT.Found nothing related in errata. My environment: IAR, HSI 16MhzProblem: kicking WWDG too early doesn't trigger instant reset.void main(void) { WWDG->CR = WWDG_CR_WDGA | 0x7F; WWDG->WR = 0x50; while(1) { // kicking WWDG too early doesn't trigger instant reset, only if I execute this line ~25times // which is useless in real life WWDG->CR = WWDG_CR_WDGA | (0x50+1); } }

Hi everyone,after solving a problem on Windows 7, I can no longer use ST-LINK/V2, or STM8-Discovery, for debugging via STVD (see version on attachment 2).I've verified that both ST-Link and STM8 Discovery work correctly and in fact with these tools I can program through STVP, the micro STM8L used for my projects.Instead, at every attempt to connect ST-LINK / V2 or STM8 Discovery, to my targe, it gives me the message of attachment 1.I have correctly updated the ST-LINK/V2 firmware and completely uninstalled sttoolset and then installed it again, but this did not solve my problem. I kindly help someone who has had similar problems. Thanks to everyone.

i am using stm8s003f3 mcu and st link v2 mcu was programmed before rop option enabledi ve changed programme and try to reprogram mcu i am getting Error: gdi-error [40301]: in the past rop can be disabled by debugger in the related menu and selection..now option tab dont be displayedwhat is problem i couldnt understand..i have updated stlink firmware to last version V2.J33.S7i have tried with V2.J29.S7 and it has V2.J25.S4 revision before any change

Boot Loader Option Bytes SettingsOption byte 0: AAOption byte 1: 00Option byte 2: 00Option byte 3: 00Option byte 4: 00Option byte 5: 55Option byte 6: AAMemory checksum: 0x1A9

Hi, I am using STM8L151C6 chip for my development. I would like to program my application through USART boot loader option. I configured Read Out Protection OFF and BL option bytes to 55 AA through ST Visual programmer. When I am testing with "Flash Loader Demonstrator" from ST I am getting error like " No response from the Target, the boot loader can not be started. ". Could you please help on this! Am I missing some configuration here.?

I am trying for interfacing lcd to stm8s103fp3 in 4 bit lcd mode.please someone suggest how should I do.​

New to STM8, I can create and upload new firmware, but I'd like to understand the reverse process in the event I need to use SWIM for root cause analysis of bad or damaged parts with multiple firmware versions. Imagine a drone with AI able to self-modify and update firmware of its components in real time eventually hitting a wall at high speed and you get the idea why this can be important. Suggestions to shorten the learning process? (I'm using a STM8VLDISCOVERY so I have ST-LINK with SWIM configured and hardwired to start).

STM8S105C6.h Where can I download the header file? Thank you�?

Timer 1 inittalization code is below: TIM1_TimeBaseInit(10, TIM1_COUNTERMODE_CENTERALIGNED1, 1000, 1); TIM1_ICInit(TIM1_CHANNEL_1,TIM1_ICPOLARITY_FALLING ,TIM1_ICSELECTION_DIRECTTI ,TIM1_ICPSC_DIV1,0); TIM1_ICInit(TIM1_CHANNEL_2,TIM1_ICPOLARITY_FALLING ,TIM1_ICSELECTION_DIRECTTI ,TIM1_ICPSC_DIV1,0); TIM1_EncoderInterfaceConfig(TIM1_ENCODERMODE_TI12,TIM1_ICPOLARITY_FALLING ,TIM1_ICPOLARITY_FALLING ); TIM1_Cmd(ENABLE);I have the following in an infinite loop after the code above runs:TIM1_GetCounter();When i turn my encoder whether clockwise or anti clockwise TIM1_GetCounter() returns me one and goes back to zero.

Hello,I am working on STM8L-Discovery DAC module.I have used Timer 4 trigger (1Khz) and DMA transfer is enabled.But my DAC_OUT1 pin PF0 isn't giving a sine wave. I want to know what mistake I might have done.Thanks in advance.Regards,SandeepTool Used - IAR WorkbenchCode-#include "stm8l152C6.h"uint16_t Sinus12bit[130] = {1800, 1887, 1974, 2060, 2146, 2231, 2315, 2397, 2479,                  2559, 2637, 2713, 2786, 2858, 2927, 2994, 3057, 3118,                  3176, 3230, 3281, 3329, 3373, 3414, 3450, 3483, 3512,                  3537, 3558, 3574, 3587, 3595, 3599, 3599

HEYO!!!I'm trying to compile the I2C EEPROM code given in the STVD compiler. And I'm getting this error.Please help me with this.

Is there a serial number or unique ID on STM8S003K3 that can be read in software?

Hi,I would like to know, what is specific use of IAP commands in stm8s, and how can i use it (i mean any example code in C.).