STM8 MCUs

 I have STM8L152R8 Nucleo board. I have debugged LED Blinking code on STVD.Now I am trying to run the new example on this board. but USART example is not running on the board. I am not getting any output on the serial terminal.I have tried every example from the STM8L library.please suggest me any solution thanks and regardsDeoyani

Hello , I want to ask about creating own workspace and project in ST visual develop .I have STM8L152R8 Nucleo board and I have debugged the LED Blinking code using STM8L peripheral library template , But i need to develop my own project without using template file because template files can not be renamed .please suggest me solutions I have referred ST visual Develop user manual I have also gone through the other Nucleo board manual Programming with STM8 manual please Guide me . Thanks and regardsDeoyani

Hi all, I'm new to developing with the STM8 and noticed that the dlstm8smn.a library is taking up nearly 1kB of flash in my project. I'm wondering if someone could help demystify what all these object files are doing and where I could potentially optimize to reduce code size.Note: I'm compiling using optimization for size and am using the IAR workbenchThanks in advance!

I have posted already that I am using STM8152R8 nucleo board I have downloaded cosmic c compiler and it's license file too. I have also downloaded the STM8L library (en.stsw-stm8016) from the ST website. I have included the source files and include files through these libraries files and I have Also uncommented the microcontroller which I am using in STM8l.h file, still, I am getting errors On STM visual Develop that "select the microcontroller in STM8L.h " Also "STM8Lconf.h" is not there in library files, this also showing me an error.Please suggest me any solution. Thanks and regards Deoyani

My stvd project settings panes for Compiler and to the right of it have font size too big. Consequentially I can only acess the top left of the pane. I need to change the const section address and I can't get to it, so my project is on hold until this is fixed.Does anyone have any idea how this could happen and/or how to fix it?

Hello. I want to make the controller a slave for the SPI. I understand the hardware activation Support leg stm8 at present, as it was then activated receiving \ transmitting?/* Includes ------------------------------------------------------------------*/ #include "stm8s.h"   /* Private defines -----------------------------------------------------------*/ #define TIM4_PERIOD 124 #define USER_TIME_CYCLE 10   unsigned int system_plc_time = USER_TIME_CYCLE; bool Start_SPI = FALSE; //bool Start_SPI = TRUE; uint8_t system_buff_mb_msg_rx[10];   /* Private function prototypes -----------------------------------------------*/ static void CLK_Config(void); static void TIM4_Config(void); static void SPI_Config(void); static void EXTI_Config(void);   /* Private functions ---------------------------------------------------------*/ static void CLK_Config(void) { CLK_DeInit(); CLK_HSICmd(ENABLE); CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1); CLK_SYSCL

Hello, I am trying to program a stm8l151c8 with Raisonance but I get the following message: Cannot communicate with the tool. Wrong tool selection or check tool power supply or check that a previous session is closed. Do I need to change any jumper on the Raisonance? Do I need to install any drivers? I am really new to the STM8 and working with them.Any help is greatly appreciated.

In order to create a gang programmer we were thinking of using multipe STM32 processors were every processor implements the SWIM interface in order to program STM8 processors in parallel. We can we find code written for a STM32 device which implements the SWIM protocol ?

In an application we use PB4 as output. Corresponding to the datasheet, this port only can be used with open-drain. In the datasheet in the I/O port pin characteristics there are values of 30k up to 80k for pull-up resistor Rpu. Is this meant for the internal pull up resistor? I put 10k up to 3.3V. And with this value, I only get about 2.7V as high. If I put 30k, there will only be about 2V. So, what are the usual values you put on these o.d ports on STM8?

Hello,I am using NUCLEO-8L152R8 board for our project purpose.I am new to this board. I have downloaded tools like STM8Cubemx, ST visual develop.I haven't found any video or document which will guide me on how to develop code in ST visual develop and using stm8cunbemx I want codes related to the interfaces like I2C, UART, SPI, Timers etc.Please Guide me. and refer me If any documents do you have related to this nucleo board. I am waiting for reply Please give me a reply.Thanks and Regards Deoyani Joshi

Hi,I am looking at STM8 MCUs and am trying to figure out, if I need the RWW functionality. I want to save data to EEPROM after a specified time has elapsed and read at random times from the data EEPROM. I also want to have UART comms running.To ensure that I won't miss any bytes, do I need the RWW functionality? It seems to me if I donÄt have that, my interrupts are blocked the entire time I write to the EEPROM because the vector table is in the same memory. Am I wrong in this assumption? Can I do anything else to ensure the reception of bytes is uninterrupted?Cheers

I'm trying to identify an 8-pin part that appears to have an "ST" logo on it. I'm pretty sure it is an 8-bit MCU, (part of a LED tube driver dimmer control) The part numbers looks like ST G9949, but I can't find a match on ST.com. Does ST custom label parts if they are pre-programmed? From the pin use, my guess is that it is an ATtiny part, but that doesn't explain the label. 

Hey, The STVD latest version available from the Website is 4.3.12. But its user manual On the Website (Doc: UM0036) is for STVD version 4.0.1 (Which is released in 2010).I can't find any User Manual DOC for STVD latest Version 4.3.12.anybody any Idea or insights on this from where i can get latest Doc

INTERRUPT_HANDLER(EXTI_PORTA_IRQHandler, 3){ /* In order to detect unexpected events during development,   it is recommended to set a breakpoint on the following instruction. */ if(!GPIO_ReadInputPin(RUIDO_PASS_Port, RUIDO_PASS_Pin)) { Tmr10msLeRuido1 = 20; } if(!GPIO_ReadInputPin(RUIDO_MOT_Port, RUIDO_MOT_Pin)) { Tmr10msLeRuido0 = 20; }}

I have a STM8S003F3 and a Arduino Micro SD Card Module. I want to communicate with Micro SD Card. But Project SPI_FastCommunicationMicroSD in STM8S_StdPeriph_Lib is not working. It goes into "Go to infinite loop when there is mismatch in data programming" error loop. In the library, I just changed the SPI pins and removed their unnecessary functions (For example, STM_EVAL_LEDToggle(...)). What could be the problem? (I am using "SanDisk 16GB Ultra UHS-I Class 10 MicroSDHC" as a Micro SD Card.)(The Micro SD card module works on Arduino. I have tested.)Thank you in advance.

My code as a below;void EEPROM_WriteByte(unsigned int address, unsigned char value){ FLASH->DUKR = 0xAE; FLASH->DUKR = 0x56; (*(uint8_t *)(0x9FC0 + address)) = value; FLASH->IAPSR &= FLASH_MemType_Data;}unsigned char EEPROM_ReadByte(unsigned int address){ unsigned char *ptr = (uint8_t *)(0x9FC0 + address); return (*ptr);}

I have a discovery stm8s003k board and when I tested a program for cco capability it seems cco will never be stable and program always remain in line:while(CLK_GetFlagStatus(CLK_FLAG_CCORDY) == FALSE); code and more explain is in detail.I tested it with below code and I even change pre-scalers for lower and higher frequency, I also check it with external crystal (and change the code) but it remains inwhile(CLK_GetFlagStatus(CLK_FLAG_CCORDY) == FALSE);forever.When I debug the code and step over in debugger environment after the program enables CCOEN bit the output will start and frequency is just true. but both flag CCOBSY remains set (CCOR=0x69 in debugger) and it always remain in while loop.when i try cco out put in stm 32 it is also seem unstable for example every thing is ok but every 8 clock one of clock has a little change in frequency or duty cycle ,what is problem with mco or cco section? thanks for

Hello, I am using STM8l151, ST Visual Develop, and Cosmic compiler. I need to find out how much space is occupied in RAM and Flash. I found the .map file and checed there, but everything there is said in terms of segments and also code size in flash is not mentioned. I found other discussions in this forum about this, but they do not mention how to calculate size in Bytes. Thank you in advance for your help.

hello siri used cosmic c with st visual idand when i comple there are no errors, but when i build, just the small examplethen i have this error#error cpstm8 en.stsw-stm8069\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c:56(8+3) bad struct/union operand, can you please, inform me what i do wrongmany thanks

I am writing a firmware for stm8 with Cosmic compiler and in ST Visual Develop. I am using astruct as the following:typedef enum { lcBlack = 0, lcRed, lcGreen, lcOrange } led_color_t;   PUBLIC typedef enum { lppEmpty, lppStartup, lpp_volt_off, lpp_volt_warn, lpp_volt_over, lpp_volt_under, lpp_volt_drop, lppPause, lppHY, lppMLZ, lppTD, lppOnOK, lppOff, lppLixilTestTouch } led_name_t;     typedef struct { uint8_t enable; led_name_t led_name; led_color_t led_color; uint8_t prio; uint16_t t_on_0; uint16_t t_off_0; uint8_t cnt_0; uint16_t t_on_1; uint16_t t_off_1; uint8_t cnt_1; uint16_t t_1; uint16_t t_2; } led_patt_t;then I define and initialize an array of structs as the following: led_patt_t led_pattern[73] = { {0, lppEmpty, lcBlack, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, lppStartup, lcRed, 255, 100, 100, 10, 0, 0, 0, 0, 500}, {1, lpp_volt_off, lcRed, 210, 100, 100, 2, 0, 0, 0, 0, 1100}

when I compile the code for a simple GPIO toggle, it shows an error like thisCan't understand what is the issue, I have included all the inc and source files into the project from the Standard peripheral library and the Cosmic compiler is also successfully installed.Any valuable suggestions or guidance will be greatfull.​​​error like this....​

Hi, i try to compile the example which get it from the library using STVD, but it failed. the attachment is the whole work space. can please help check where is the wrong setting.

Hope all doing well.

I'm developing some applications with STM8S003K3 now (battery-used product). The problem is that, I cannot make the MCU consume just 4.5 micro-ampere order current in the halt mode as in the datasheet described.I use the Eval-Board "STM8SVLDISCOVERY" and i removed the jumper JP1, R12 and R19 to be ensure that other consumers are connected with the VDD net.Are there other hidden consumers? Or which commands are necessary to switch off all Clocks etc. and go correctly in the halt mode?

when i am trying to compile ST Visual develop 4.3.12 with cosmic compiler 4.4.9.0 it is showingthat the executable could not be found you can fix it by editing your too lset settings.i try to set root path as C:\Program files\cosmic\ fse_compilers\CXSTM8 i am using windows XP and trying to install software again but it showing same error.please any one help me to solve this problem