Starting STM8 Microcontrollers

STM8S003K3 Discovery

Alphanumeric LCD

Alphanumeric liquid crystal displays are the most common and basic form of displays after seven segments and LED displays. They are useful for projecting multiple data quickly in ways that are otherwise difficult with other kinds of displays.

To interface a LCD with a STM8 micro, we need LCD library. The STM8 SPL does not have a library for such displays and we need to code it on our own. Interfacing a LCDs are not difficult tasks as no special hardware is required to drive LCDs other than GPIOs. However, there are some tasks needed in the software end. We need to include the library files. The process of library inclusion is discussed in the later part of this article as it needs some special attentions. The example I’m sharing here uses 6 GPIO pins from GPIOC. The read-write (R/W) pin of the LCD is connected to ground. The layout is as shown below.

Hardware Connection


Code Example


#include "stm8s.h" 
#define LCD_PORT                              GPIOD
#define LCD_RS                                GPIO_PIN_2     
#define LCD_EN                                GPIO_PIN_3   
#define LCD_DB4                               GPIO_PIN_4       
#define LCD_DB5                               GPIO_PIN_5
#define LCD_DB6                               GPIO_PIN_6 
#define LCD_DB7                               GPIO_PIN_7 
#define clear_display                         0x01                
#define goto_home                             0x02
#define cursor_direction_inc                  (0x04 | 0x02)
#define cursor_direction_dec                  (0x04 | 0x00)
#define display_shift                         (0x04 | 0x01) 
#define display_no_shift                      (0x04 | 0x00)
#define display_on                            (0x08 | 0x04)
#define display_off                           (0x08 | 0x02) 
#define cursor_on                             (0x08 | 0x02)       
#define cursor_off                            (0x08 | 0x00)   
#define blink_on                              (0x08 | 0x01)   
#define blink_off                             (0x08 | 0x00)   
#define _8_pin_interface                      (0x20 | 0x10)   
#define _4_pin_interface                      (0x20 | 0x00)      
#define _2_row_display                        (0x20 | 0x08) 
#define _1_row_display                        (0x20 | 0x00)
#define _5x10_dots                            (0x20 | 0x40)      
#define _5x7_dots                             (0x20 | 0x00)
#define DAT                                   1
#define CMD                                   0
void LCD_GPIO_init(void);
void LCD_init(void);  
void LCD_send(unsigned char value, unsigned char mode);
void LCD_4bit_send(unsigned char lcd_data);              
void LCD_putstr(char *lcd_string);               
void LCD_putchar(char char_data);             
void LCD_clear_home(void);            
void LCD_goto(unsigned char  x_pos, unsigned char  y_pos);
void toggle_EN_pin(void);
void toggle_io(unsigned char lcd_data, unsigned char bit_pos, unsigned char pin_num);



#include "lcd.h"
void LCD_GPIO_init(void)
void LCD_init(void)
    GPIO_WriteLow(LCD_PORT, LCD_RS);            
    GPIO_WriteLow(LCD_PORT, LCD_DB7);   
    GPIO_WriteLow(LCD_PORT, LCD_DB6);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB5);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB4);                      
    GPIO_WriteLow(LCD_PORT, LCD_DB7);   
    GPIO_WriteLow(LCD_PORT, LCD_DB6);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB5);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB4);  
    GPIO_WriteLow(LCD_PORT, LCD_DB7);   
    GPIO_WriteLow(LCD_PORT, LCD_DB6);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB5);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB4);  
    GPIO_WriteLow(LCD_PORT, LCD_DB7);   
    GPIO_WriteLow(LCD_PORT, LCD_DB6);   
    GPIO_WriteHigh(LCD_PORT, LCD_DB5);        
    GPIO_WriteLow(LCD_PORT, LCD_DB4);  
    LCD_send((_4_pin_interface | _2_row_display | _5x7_dots), CMD);
    LCD_send((display_on | cursor_off | blink_off), CMD); 
    LCD_send(clear_display, CMD);         
    LCD_send((cursor_direction_inc | display_no_shift), CMD);
void LCD_send(unsigned char value, unsigned char mode)
          case DAT:
              GPIO_WriteHigh(LCD_PORT, LCD_RS);   
          case CMD:
              GPIO_WriteLow(LCD_PORT, LCD_RS);   
void LCD_4bit_send(unsigned char lcd_data)       
    toggle_io(lcd_data, 7, LCD_DB7);
    toggle_io(lcd_data, 6, LCD_DB6);
    toggle_io(lcd_data, 5, LCD_DB5);
    toggle_io(lcd_data, 4, LCD_DB4);
    toggle_io(lcd_data, 3, LCD_DB7);
    toggle_io(lcd_data, 2, LCD_DB6);
    toggle_io(lcd_data, 1, LCD_DB5);
    toggle_io(lcd_data, 0, LCD_DB4);
void LCD_putstr(char *lcd_string)
        LCD_send(*lcd_string++, DAT);
    }while(*lcd_string != '\0');
void LCD_putchar(char char_data)
    LCD_send(char_data, DAT);
void LCD_clear_home(void)
    LCD_send(clear_display, CMD);
    LCD_send(goto_home, CMD);
void LCD_goto(unsigned char  x_pos, unsigned char  y_pos)
    if(y_pos == 0)    
        LCD_send((0x80 | x_pos), CMD);
        LCD_send((0x80 | 0x40 | x_pos), CMD); 
void toggle_EN_pin(void)
    GPIO_WriteHigh(LCD_PORT, LCD_EN);    
void toggle_io(unsigned char lcd_data, unsigned char bit_pos, unsigned char pin_num)
    bool temp = FALSE;
    temp = (0x01 & (lcd_data >> bit_pos));  
        case TRUE:
            GPIO_WriteHigh(LCD_PORT, pin_num);   
            GPIO_WriteLow(LCD_PORT, pin_num);   



#include "STM8S.h"
#include "lcd.h"
void clock_setup(void);
void GPIO_setup(void);
void main(void)
    const char txt1[] = {"MICROARENA"}; 
    const char txt2[] = {"SShahryiar"}; 
    const char txt3[] = {"STM8S003K"};
    const char txt4[] = {"Discovery"};
    unsigned char s = 0x00;
    LCD_goto(3, 0);                              
    LCD_goto(3, 1);
    for(s = 0; s < 9; s++)
        LCD_goto((3 + s), 0);   
   for(s = 0; s < 9; s++)
        LCD_goto((3 + s), 1);   
    while (TRUE);
void clock_setup(void)
    while(CLK_GetFlagStatus(CLK_FLAG_HSIRDY) == FALSE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_SPI, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_I2C, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_ADC, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_AWU, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_UART1, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER1, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER2, DISABLE);
    CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER4, DISABLE);
void GPIO_setup(void)



There’s little to explain this code as it involves GPIOs only. The codes for the LCD are coded using all available info on its datasheet, just initialization and working principle. One thing to note, however, is the CPU clock speed. If the CPU clock is too fast, LCDs may not work. This is because most LCDs have a maximum working frequency of 250kHz. It is best to keep this frequency below 200 kHz.




LCD (1) LCD (2)

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    I have been working through your articles and trying to understand as much as possible. I am currently looking at the AWU,

    I have brought in the project, compiled and built with no errors. :-)

    However when running the program the CPU goes into the halt mode, and never Auto wakes up! :-(

    Is there some more work that has to be done in the interrupt side of things? Does the project need the ITC.c and ITC.h files and some adjustments in there?

    Could I also have the delay.c and delay .h files please.


    • By the way, I am using the STM8SVL Discovery with the 003K processor on it also so all hardware is identical.

    • No, nothing needs to be done in the interrupt “itc” files but you need to add some lines in the “it” interrupt files:

      in the “it” header file add the following line:

      @far @interrupt void AWU_trigger_IRQHandler(void);

      and in the “it” source file add the following lines:

      void AWU_trigger_IRQHandler(void)

      Change the interrupt vector file as shown below:

      #include "stm8s_it.h"

      typedef void @far (*interrupt_handler_t)(void);

      struct interrupt_vector {
      unsigned char interrupt_instruction;
      interrupt_handler_t interrupt_handler;

      //@far @interrupt void NonHandledInterrupt (void)
      /* in order to detect unexpected events during development,
      it is recommended to set a breakpoint on the following instruction
      // return;

      extern void _stext(); /* startup routine */

      struct interrupt_vector const _vectab[] = {
      {0x82, (interrupt_handler_t)_stext}, /* reset */
      {0x82, NonHandledInterrupt}, /* trap */
      {0x82, NonHandledInterrupt}, /* irq0 */
      {0x82, AWU_trigger_IRQHandler}, /* irq1 */
      {0x82, NonHandledInterrupt}, /* irq2 */
      {0x82, NonHandledInterrupt}, /* irq3 */
      {0x82, NonHandledInterrupt}, /* irq4 */
      {0x82, NonHandledInterrupt}, /* irq5 */
      {0x82, NonHandledInterrupt}, /* irq6 */
      {0x82, NonHandledInterrupt}, /* irq7 */
      {0x82, NonHandledInterrupt}, /* irq8 */
      {0x82, NonHandledInterrupt}, /* irq9 */
      {0x82, NonHandledInterrupt}, /* irq10 */
      {0x82, NonHandledInterrupt}, /* irq11 */
      {0x82, NonHandledInterrupt}, /* irq12 */
      {0x82, NonHandledInterrupt}, /* irq13 */
      {0x82, NonHandledInterrupt}, /* irq14 */
      {0x82, NonHandledInterrupt}, /* irq15 */
      {0x82, NonHandledInterrupt}, /* irq16 */
      {0x82, NonHandledInterrupt}, /* irq17 */
      {0x82, NonHandledInterrupt}, /* irq18 */
      {0x82, NonHandledInterrupt}, /* irq19 */
      {0x82, NonHandledInterrupt}, /* irq20 */
      {0x82, NonHandledInterrupt}, /* irq21 */
      {0x82, NonHandledInterrupt}, /* irq22 */
      {0x82, NonHandledInterrupt}, /* irq23 */
      {0x82, NonHandledInterrupt}, /* irq24 */
      {0x82, NonHandledInterrupt}, /* irq25 */
      {0x82, NonHandledInterrupt}, /* irq26 */
      {0x82, NonHandledInterrupt}, /* irq27 */
      {0x82, NonHandledInterrupt}, /* irq28 */
      {0x82, NonHandledInterrupt}, /* irq29 */

      Sorry for the trouble…. I probably forgot to state these in the code and explanation segments…. Will be updating the post…. Thanks for this catch…. :)

  • Hey,
    Grateful for the tutorial! Nice work.
    I tried this section of your tutorial and got 33 errors after building:
    it was due to commenting of :

    @far @interrupt_handler_t void NonHandledInterrupt (void)

    because these were used in the interrupt vector struct again. I uncommented those lines and got one error:
    “unknown space: interrupt_handler_t”

    what should i do now?
    please help me!
    Thanks alot.

  • Hi

    Thank you for the post,
    I ve used your code for another sensor and noticed that in the i2c read routine you’ve forgot to send a stop to release the clock line. Modification is as follows



    unsigned int BH1750_read_word(void)
    unsigned long value = 0x0000;
    unsigned char num_of_bytes = 0x02;
    unsigned char bytes[2] = {0x00, 0x00};



    I2C_Send7bitAddress(BH1750_addr, I2C_DIRECTION_RX);

    if(num_of_bytes == 0)

    bytes[(num_of_bytes – 1)] = I2C_ReceiveData();

    /// the following line should be added



  • Hello Sir,
    I am trying to compile the code of led blink. It gives me error like this

    Compiling main.c…
    cxstm8 -i”..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc” -i”..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\project\stm8s_stdperiph_examples\adc2\adc2_continuousconversion” +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\Hstm8″ -clDebug\ -coDebug\ main.c
    #error cpstm8 ..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc\stm8s_uart1.h:106(13) missing enumeration member
    #error cpstm8 ..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc\stm8s_uart1.h:113(13) missing enumeration member
    The command: “cxstm8 -i”..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc” -i”..\..\..\..\users\rajes\documents\sisai technologies\software\stm8s lib\stm8s_stdperiph_lib\stm8s_stdperiph_lib\project\stm8s_stdperiph_examples\adc2\adc2_continuousconversion” +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\Hstm8″ -clDebug\ -coDebug\ main.c ” has failed, the returned value is: 1
    exit code=1.

    • Can you help me?

      • Why are you adding ADC2 header and source files? Are you not using STM8S003?

        • stm8s_conf.h this file i am added from ADC2

          • Add only the hardware files that your target chips supports…. For example, you cannot add ADC2 for STM8S003…. This is so as STM8S003 doesn’t have these hardware blocks…. Likewise if you are using STM8S207, you cannot add UART2 files for the same reason…. If you don’t add required files then you will get errors…. You’ll also get errors if you add files that are not applicable for your target MCU….

  • Hi
    I am using stm8s003f3 pin out board and with this code I am just testing output at micro controller pin 2 i.e. TX
    I am testing this using an oscilloscope.
    but not able to get any output
    Can you please help?


  • SSI_Electronics

    I have followed the code as per the explanation.
    but I’m getting garbage values on serial port.
    Can you suggest any debugging steps??
    Thanks in advanced.

    PS: Great tutorial. It’s helping me a lot.

    • 1. Check wiring for loose connections….
      2. Use a stable and noise-free power source like a battery-bank to power up the board…. Noise from PC port may cause unwanted issues….
      3. Use CP2102 or FT232-based USB-TTL converter…. Don’t use PL2303-based ones because most are clones or fakes….
      4. Use a short USB cable….
      5. Use external pull-up resistors for both TX and RX pins….
      6. Try with another board if these don’t solve the issue…. It should not behave as you are saying because the code has no issues….

  • santosh kharade

    Serial receiving program is not working

  • Hello sir
    Do you tell me how generate pwm in pin no. B5 & B5
    in Stm8 board

    • Which STM8 chip? Because different chips have different pin mapping and sometimes there are alternative pins for such purposes…. Check with STM8CubeMX if that pin is available for that purpose….

  • Santosh Kharade

    i have done code for multi channel adc but its not working ????
    when i use single channel adc its working properly…………

  • Hello guys
    here i’m again for ask your help. I wrote a very easy program but when i try to send to stm8 the light programmer give me this error :

    >Erase not feasible
    Error: Device not recognized !

    some idea ?
    Thank you

  • First thank you so much for this wonderful tutorial, i’m new with STM8 i follow all you steps but i still have a problem and here i’m please can you help me this is the error message.
    Thank you

    ———– Project test_prov – STM8 Cosmic – Configuration Debug ————-

    Compiling main.c…
    cxstm8 -i..\..\en.stsw-stm8069\stm8s_stdperiph_lib\project\stm8s_stdperiph_template -igpio -iinc +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8″ -clDebug\ -coDebug\ main.c
    #error cpstm8 gpio\inc\stm8s.h:74 “Please select first the target STM8S/A device used in your application (in stm8s.h file)”
    The command: “cxstm8 -i..\..\en.stsw-stm8069\stm8s_stdperiph_lib\project\stm8s_stdperiph_template -igpio -iinc +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8″ -clDebug\ -coDebug\ main.c ” has failed, the returned value is: 1
    exit code=1.

    test_prov.elf – 2 error(s), 0 warning(s)

  • Hi Shawon ,
    Excellent article on stms8.
    within 3 days i was able to understand STMS8 very clearly.
    can you send me delay library files please.
    i tried to create my own without any success.
    warm regards

  • hi sir now also getting problem in compilation time …..’

    so plz can u send me the soft copy of software wat properly working at u…??

    my emain id…

    • I’m using the same software you are using – the latest one out there…. and so someone sending it has no meaning…. I suggest that you uninstall it and give it fresh retry, following all the steps carefully…. No one can help you with licensing issue unless to do it correctly….

  • hi geting poroblem while click on programmer ten my softare automatically close tab

  • hi sir…

    i getting problem for license configured……………. at compile time getting error like that…………. plz help out

    #error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\HSTM8\mods0.h:1 FlexLM Cannot find license file.
    The command: “cxstm8 -iinc +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8″ -clDebug\ -coDebug\ main.c ” has failed, the returned value is: 1
    exit code=1.

    alpha_lcd.elf – 3 error(s), 0 warning(s)

  • helo…we hav stm8svl discovery..i need embedded c program for the glowing of led,connecting ir receiver and also powersupply…for connecting these things i need code can u please guide me

  • Thanks for this article..
    I am looking for microsd card interface with STM8s discovery board. can you please provide the tutorial for microsd card?

  • In relation to disabling unused peripheral clocks as suggested by you:

    I found the following list of peripherals in the STM8S105 Discovery Board: Advanced control timer (TIM1), General-purpose timers (TIM2 and TIM3), Basic timer (TIM4), SPI, I2C, UART2, Window WDG, Independent WDG, ADC1,
    AWU timer, Beeper.

    Is this all?

    I could not find the clock peripheral configuration function for Window WDG, Independent WDG, Beeper in the Standard Peripheral Library.
    Is it not required?

    P.S. I am new to MCU programming with a little experience on Arduino. So please forgive me if the question is foolish.

    • 1. STM8S003K3 Discovery – the one I use for the blog is different from STM8S105…. They have different peripherals and so there will be differences in peripheral clocks…. Please check the device datasheet/STM8CubeMX for available hardware….

      2. WWDG and IWDG are set in option bytes and they don’t use peripheral/CPU clock…. Their oscillator is separate…. Due to these they don’t have clock configurations like other peripherals….

      P.S: No question is a noob question…. every question is allowed no matter how silly it may look….

  • Hi please someone tel me where can i find stm8s_delay.h and stm8s_delay.c

  • Hi , please someone tel me . Where can i find stm8s_delay.h and stm8s_delay.c
    Thanks ..

  • i am using stms003f3p6 controller..i have done as u told exactly but tim1 input capture is not displaying any value …according to your article it should display 10…i dont have any errors everything is fine…pulse on tim2 is ok is coming as u said…but capture not working..please help me …thank you…

  • Hi Sir,
    i have just follwed your instruction provied in yout tutorial in main.c

    #include “stm8s.h”

    while (1);

    This error comes, can you please check why this error come, i am new and learn the controller programming.

    The command: “cxstm8 -i”d:\other datasheet\new folder\lib\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc” +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8″ -clDebug\ -coDebug\ main.c ” has failed, the returned value is: 1
    exit code=1.

    main.o – 2 error(s), 0 warning(s)


  • Hi there, i solve the previous ADC problem. Anyway, u make some good tutorial on stm8 chips. Nice work

    • What was causing that issue? How did you solve it?

      • because i put all these

        ADC_SamplingTimeConfig(ADC1, ADC_Group_SlowChannels, ADC_SamplingTime_4Cycles);
        ADC_SchmittTriggerConfig(ADC1, ADC_Channel_7, DISABLE);
        ADC_ChannelCmd(ADC1, ADC_Channel_7, ENABLE);
        ADC_Init(ADC1, ADC_ConversionMode_Continuous, ADC_Resolution_12Bit, ADC_Prescaler_1);
        ADC_Cmd(ADC1, ENABLE);
        ADC_ExternalTrigConfig(ADC1, ADC_ExtEventSelection_None, ADC_ExtTRGSensitivity_All);

        in ‘while(1)’. It keeps looping.

        Once i put it before ‘while (1)’, it becomes normal.

  • Hi there, thanks for sharing. I learn alot thru your example, but I have encounter a problem with adc. Im currently using stm8l151k4t6. I wanna use the pin D7 as to read the voltage from my battery and monitor it (display on LCD). Can u please check where it goes wrong on my code?

    ADC_SamplingTimeConfig(ADC1, ADC_Group_SlowChannels, ADC_SamplingTime_4Cycles);
    ADC_SchmittTriggerConfig(ADC1, ADC_Channel_7, DISABLE);
    ADC_ChannelCmd(ADC1, ADC_Channel_7, ENABLE);
    ADC_Init(ADC1, ADC_ConversionMode_Continuous, ADC_Resolution_12Bit, ADC_Prescaler_1);
    ADC_Cmd(ADC1, ENABLE);
    ADC_ExternalTrigConfig(ADC1, ADC_ExtEventSelection_None, ADC_ExtTRGSensitivity_All);
    while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
    battery = ADC_GetConversionValue(ADC1);

  • hi shawon great tutorials it would be nice too if you covered the coide compiler for arm it’s a good free compiler

  • hi shawon thanks for your response and support it turns out that my problem was a license issue I stupidly thought i use one license on multiple pc’s I used the license for a particular computer for mine that’s why I’ve been having compilation issues you have to use the license file stm8 sends you that is generated by your own pc else it won’t compile it’ll jus kip throwing you errors

  • It seems that you didn’t follow my instructions completely…. I found some issues:

    1. You have included header and source files of ADC2, CAN, UART2, etc which are unavailable in STM8S103…. Add only files for the peripherals available in your target MCU…. Exclude the rest….

    2. You have not included stm8s_delay header and source files…. Either disable it from stm8s_conf.h header file if you are not going to use it or add both the header and the source files for it in your project….

    Resolve these and you are good to go….


  • I haven’t compiled any of the examples yet I just tried to compile the main source file just for test purpose n it just keeps showing me the same errors

  • yes the comic compiler was installed properly i even received a license file from my mail with the instructions to copy the license file to the license folder in the install directory if you fail to do this it will keep popping up for you to put in the license file. iincluded all the source files and header files as instructed i am working with the cheap stm8s103f i uncommented the stm8s103f in the stm8.h header file as you instructed and just to compile the main file it just throws me errors

  • no I just followed your instructions I just compiled it after setup i did not write any code yet just compiled the default main file

    • Need more details….

      1. The version of STVD and Cosmic
      2. Which example is giving this issue?
      3. The chip you are using if it other than STM8S003
      4. Have you tried to compile something else other than my examples?
      5. Are the paths to libraries and other folders properly added?
      6. Is the Cosmic compiler registered properly?

  • it throws this line The command: “cxstm8 -iinc +debug -pxp -no -l +mods0 -pp -i”C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8″ -clDebug\ -coDebug\ main.c ” has failed, the returned value is: 1
    exit code=1.

  • hi I’m having compilation issues when I compile it just throws me error about comic compiler located in the program file ialso excluded unwanted header files but my problems still weren’t solved

  • hi thanks for the tutorials but i am having compiler error issues even when I remove unnecessary header files it say comic compiler error

  • I am new to STM8S003k3 Discovery board.I have done UART communication using STM standard peripheral library example. Now I want to define any other GPIO pin for UART communication. Is it possible to use d0 and d1 pin for the UART communication? If yes, then please let me know how?

  • thank you very much for this article!

  • Thank you for your time and effort.

  • Good job bro

  • Thank you for this exceptionally comprehensive article, much appreciated


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