STM8 MCUs

Dear Sir/MadameConcerning to our ZKW HaMOn (Hardware Management Online)Database, due to our customers' requirements, we need to have some information.Could you please mail me as soon as to send table with MPNs to have required information.Thanks for your cooperationDr.Eng. Mohamad NAKCHAECAD&PLM Support Engineer

Posted on March 16, 2018 at 07:23I have been using ST Visual Develop with the STM8 Cosmic Compiler on a Virtual PC with Win10 for months.Now I want to use it on my normal PC (also Win 10 64 bit  Version 1709), CosmicCompiler is working but I cannot program the code on the target (see picture), this  happens a soon as I open in the menu Tools->Programmer.I installed the ST-Link utility and the ST Visual PÃœrogrammer, both can be started. The ST-Link V2 is correctly shown in the Device Manager of Windows.I re-installed ST Visual Develop but this doesn't help.Any ideas what is going wrong?

Hi, I'm using ST VISUAL DEVELOP. An error occurs.  it wasn't like that before. The program suddenly turned off.These days, it's on the program like the video below. Is there a way to solve this?        

I'm working on with STM8s105k4.The problem is illegal wakeup from halt mode after about 8us itself.There are any condition is nothing to wake from halt mode.External interrupts are all disable. there is no any interrupt.all Comm modules are off state.WDT is not used also(not is started)I don't know why it is doing almost free pass from halt instructin.How do I fegure it out. I have no idea.Please help me ㅜㅜ

Hello guys :)I am programming with stm8s105k4it immediately exit halt mode with in about 10us When It enter the Halt mode.What is it?I knew the exit condition from halt mode is only EXT INT, But I naver enable any EXT INT.What happend with my MCU.There are not any Interrupts(include comm int.) and no reset.I don,t know What is it.

How to flash stm8 with ST-Link2 in Arduino IDE? I tried to install Sduino for Arduino IDE 1.8.16 on Mac os. When I click on the firmware button, I get the error An error occurred while uploading the sketch. How to fix this?Error:Arduino: 1.8.16 (Mac OS X), Board: "STM8S103F3 Breakout Board"/Users/artem_koval/Library/Arduino15/packages/sduino/tools/sdcc/build.11242/bin/sdcc sketch/Blink.ino.cpp preproc/ctags_target_for_gcc_minus_e.cpp re12 -c -Ddouble=float -DUSE_STDINT -D__PROG_TYPES_COMPAT__ -E -MC -mstm8 -DSTM8S103 -DF_CPU=16000000L -DARDUINO=10816 -DARDUINO_STM8S_BLUE -DARDUINO_ARCH_STM8 -I/Users/artem_koval/Library/Arduino15/packages/sduino/hardware/stm8/0.5.0/cores/sduino -I/Users/artem_koval/Library/Arduino15/packages/sduino/hardware/stm8/0.5.0/variants/standard -I/Users/artem_koval/Library/Arduino15/packages/sduino/hardware/stm8/0.5.0/STM8S_StdPeriph_Driver/inc -I/Users/artem_koval/Library/Arduino15/packages/sduino/tools/sdcc/build.11242/share/sdcc/includ

 Hi Sir ,   This is kishor ,we are using stm8s207mb in our application, some board are working in debug mode only , when we come out from debug its not running . iam not able to understand the  problem . is there any ide issue or hard ware issue . we noticed one point in working  board Reset Pin maintaining 3.5v, in the problem board  it is below 2.6v . but we are  using same components  in all boards .... please help me these problem Thank you.......

To allocate the particular location to safety variables in the RAM we added new RAM sections in the linker as shown below.we allocated above address to safety variables as shown below from the code.Due to above changes we are getting below warning in the STVP Programmer Tool while flashing the *.s19 file to the STM8AF5288 MCU

Hi, I am working to compile a pogam from the command line. The used compiler is the Cosmic compiler for the STM8 microcontrolerThe STVD Datasheet says that Export makefile ... | Generates a makefile script that can be launched with the gmake utility, seperatly from STVD full IDE. I have generated a makefile .mak in the ST Visual Developer. I have tried to compile the program in the command line with gmake but it doesn't work. Are there any documentations how the makefile have to be executed? Where can I find them?I have used the command : gmake --makefile=<File location> -d The reported message is: No rule to make target  --------------------------- Stop. --> the file is included in the Directory.or No need to remake target  XXXX.makNothing to be done for XXXX.mak  

Good morning,I write that post as remainder of a problem I encountered.In our embbeded software, the STM8 have to initialise EEprom with a bunch of default data on its first start.The process, that was working fine with previous ST7 now obsolete, failed with STM8 (and turned me crasy) : EEprom writing failed after writing of 32 bytes.In fact the problem comes from STVP :  it programs the flash, then lets the processor to start (release Reset long time enough) then re-enter SWIM mode to verify the flash.So the processor is able to run a few ms, long enough to enable our app to start to initialize the EEprom.Because of reset (to verify) occured while the EEprom was writing, it contents was not reliable over 32 byte... unlucky, after 2^5 count... that turned me on wrong analysis.After adding a 1s delay before eeprom filling, no more problem occured with EEprom winitialisation.

Dear ST-Team, I am working on a STM8 MCU with the STVD. I want to compile my project in the Microsoft cmd line with a pipeline such as . cmd.exe /c "C:\Program Files (x86)\STMicroelectronics\st_toolset\stvd\stvdebug.exe" I haven't found any information in the Documentation. Furthermore, there are no help options such as -h, --h, -help and --help  in this program.   Are there some documents I can use to write the correct commands to compile the code with the STVD successfully?Many thanks in advanceBest Regards Stefan

hello.iar has decided to cancel the limited licenses. I also decided to switch to stvd because I have stm8 ongoing project. But I can't compile on stvd for days.ı get the executable could not be found error.

Hi  Everyone,I am using Stm8s003k3 to measure the temperature of three different places. Then displaying each temperature on 3 digits 7-segment display (3 of them to show each temperature separately). Now to display the temperature on all 3 seven segments I need to put them in the main loop and then the code should be executed without delay otherwise it will Dim the displays. My problem is I need to perform calculations and some other tasks if do those there is a delay and so my display got Dim any solution recommended how do I display temperature on all three displays while performing other tasks as well? 

I am using STVP and ST-Link V2 to program my STM8L151G4. I managed to upload my program once, but now I am not able to upload another one. It's one-file project, I build it using Small Device C Compiler. It gives me a .ihx file, which then I upload to stm using STVP. It shows no errors, but doesn't reprogram my stm either. Can anyone help? 

Posted on March 27, 2014 at 20:09Hi,I'm trying to use the ST Visual Develop with the Cosmic st8 32k compiler.  I install everything and build the project.  That all works fine.  When I try to connect to the Discovery board with the debugger using Swim ST-link, I receive the following error:Starting debug session...  -> Emulator reset (usb://usb)...   ** Connection error (usb://usb): gdi-error [40201]: can't access configuration database    -> Failed to connect target.I have tried uninstalling and re-installing everything including the drivers.  I've tried other target settings.  The only one that works is the simulator.When I connect the Discovery board, my computer sees it as an external HD.  I get the pop-up

I am trying to initialize a section of EEPROM address from 0x40A0 to 0x40B8 in STM8AF5288 MCU. Between I am not able to complete this initialization process & end up getting MCU Reset. Attaching the assembly code that does this action BSET  _FLASH_CR1,#0 BTJF  _FLASH_IAPSR,#3,unlocked ; check data memory EEPROM write is unlockedMOV   _FLASH_DUKR,#0xaeMOV   _FLASH_DUKR,#0x56 unlocked:      LDW   X,#0x47FF ; p = EEPROM_END                      LD    A,(X)             CP    A,#0xAA ; when initialization is complete the end of EEPROM address range contains 0xAA    JRNE  PrepInit     

Hi, I bought me some STM8S103F3 small developent boards from china. Nice stuff. But I would like to make timer 1 channel 1 generate a PWM signal on output C6. This needs some remap of the timer 1 peripheral. Therefore I managed to set the AFR0 bit in OPT2 and clear this bit in NOPT2. The onboard led goes off when the cycletime Update event is executed and goes on if the compare value event (dutycycle time)  is reached. I monitored the onboard led by oscilloscope and all works nice as expected showing my PWM signal. But still no signal is appearing on output C6 which is configured as output pushpull. Anyone has some experience with remapping timer 1 or what am I doing wrong? I am using the STVD IDE with COSMIC8 toolset. (spend 8 hours trying to find out, chatgpt is telling me nonsense...)

To connect 'STNRG388A' with 'ST_SMED_Configurator', you need to modify which register?

Hello all. I am looking for an example startup script to perform a few initialization tests.I came to know that in  https://usermanual.wiki/Document/CXSTM8UsersGuide.1100875490.pdInitializing data in RAM section there is a startup script.I would like to know if there is any tutorial for the same.If there are any code examples, kindly share them with me.  

Hi, can you please help I am programming my board using STVP_CmdLine.exe utility with the following arguments -ProgMode=SWIM -Device=STM8S105x6 -FileProg={FW_PATH} -verif -no_loop. I need an argument to change the frequency, something like Freq=1800. Is there such an argument? Is it possible to change the frequency through STVP_CmdLine.exe?

Hi everybody, I'm working with STM8S003F3P6 on a custom board, using PB4 as an output. It simply does not work. It is always high. I know it is a true open drain pin, and I provided the pull-up resistor, but it still doesn't work. Look at this image, it's very similar to my circuit: the layout is the same, but i'm using a 3.3KOhm resistor and instead of the PIC i'm using the STM8 of course (with a supply voltage of 3.3V). If you need I can try to post the schematic.Also the code is very simple:  GPIO_DeInit(GPIOB); GPIO_Init(GPIOB,

Good day!Started learning stm8l001 MC with SPL libraries, and actually cant find any examples of PWM for it.RWM examples for STM8s was taken and changed according l001 timers and pinouts(Timer 3 - Channel 2 ,PD0),checked bits were installed during live view in MC in IAR, but I am doing something wrong, no signal at any pin.Also checked that timer working, because it can be connected to CCO and I can read 2MHz on CCO pin.Here is the code:#include "stm8l10x.h"#include "stm8l10x_gpio.h"#include "stm8l10x_clk.h"#include "stm8l10x_tim3.h"#define ASM asmsigned int pwm_duty = 0;/* This delay should be added just after reset to have access to SWIM pinand to be able to reprogram the device after power on (otherwise thedevice will be locked) */#define STARTUP_SWIM_DELAY_5S \{ \ASM(" PUSHW X \n" \" PUSH A \n" \" LDW X, #0xFFFF \n" \"loop1: LD A, #50 \n" \\

Using STM32CubeProgrammer to upgrade from Firmware V2J0S6  to current version always not possible because of "ST-Link not in DFU mode".Why is the target Voltage 0V and how can I check this.I used Win7 and Linux (Kernel Linux 6.1.0-1parrot1-amd64 x86_64) on different computers, different usb-cables, different MB915 boaards, but ...There is no problem with a NUCLEO-L152RE or other NUCLEO board, only with these "old" discovery's .Thank You for Your help.

How can we differentiate between Power ON Reset vs MCU Reset initiated by an external watchdog device?I mean is there a Memory Area in STM8AF5288 MCU that retains state after MCU Reset compared to Power ON Reset?I cannot find the source of the MCU Reset as the External Watchdog output is connected to the MCU Reset pin. 

I am using STM8AF62A9. I reconfigured the interrupt vector table, unused interrupts and tests it with TRAP SW with function __trap();Controller jumps into the unhandled interrupt ISR routine, as expected, but in there i doesn't clear the interrupt flag.Expectation was that controller would remain stuck in ISR loop or continuously jump into the ISR routine and will not execute other part of code, but actually the controller jumps into ISR only one time and comes out immediately and executes other functionality.Is flag should be reset? Can you please share the full datasheet pointing interrupt vector table? Or did i missed something?