STM8 MCUs

Hi Technical team,   I know that STM8L152C6T6 chip is having UART option.I have STM8L152C6T6 Discovery board and checked its schematic also but i could not find out UART-TX & UART-RX pins.Pls help me to check that UART transmit and receive functionalities on this board.

Good day to all,I have STM8Adiscovery and i'm trying to load example from StdPh for the Can Bus but it's not working at all. Development tool IAR for STM8. What I have - as i see from the beggining, program try to send data 2 times - and then Can bus start to be un active as i understand that because buffer of mailboxes is full. But in this time i don't any signals on the osciloscope.For sniff CAN buss i'm using IXXAT USB-to-CAN compact - that tool also don't see any kind of messages. I checked several examples, tryed to configure by my self but still don't have working driver (((((Could someone check my source codes and give some advices.Thank you!void CanDriver_Init( void ){   CAN_InitStatus_TypeDef status = CAN_InitStatus_Failed;   /* Filter Parameters */ CAN_FilterNumber_TypeDef CAN_FilterNumber; Fu

Hello, First of all I would like to apologized for asking this. As i am new to this environment and I know some of you feels annoyed for this.I did aware of programming in Arduino. in my application I used Arduino but suddenly due to some technical limitations of Arduino, I have to switch from Arduino to STM. in my application I have mounted a PVDF Sensor on a cylindrical rod and this rod is rotated by 10° continuous upto 360° with stepper motor. As it is a Ultrasound detectable sensor so I transmit US waves from the other side of the rod. At every 10° rotation I want to read my sensor voltage value, which is in mV and MHz and store it in raw data. for ex. at first 10° it should be 250mV, then at 20° 275mV, at 30° 360mV and so on. In STM Developement board can i directly read my sensor value with this ? if yes then Which STM would be the best choice for that ? I mean it requires to use less component for post processing.I welcome all of your valuable suggestions

Hi Technical team, UART2 is always sending garbage value rather required(correct) value. Hardware used : STM8S discovery with 5V IDE used : IAR The below shows the code , // STM8S105 discovery #include "stdio.h" #include "string.h" #include "stm8s.h" #include "hyperterminal.h" #define _UART2 1void main(void){   /*High speed internal clock prescaler: 1 i.e. Fmaster = 16MHz*/   CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);   UART2_DeInit();   UART2_Init((u32)9600, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, UART2_PARITY_NO, UART2_SYNCMODE_CLOCK_DISABLE, UART2_MODE_TXRX_ENABLE);   /*Main loop*/   while (1){    SerialPutString("\r\n STM8S-Discovery r\n");   }

Posted on July 25, 2016 at 09:36It is very strange for me that I can't debug today with STM8 STVP v3.9 for the STM8AF Discovery Demoboard. It is always successful before that.The error message shown below:''Failed to launch child process:<gdb.exe>>error=2 - ''The system cannot find the file specified''.''Can anyone know how to solve it? #stvd-gdb

I'm starting to use STM family, so I haven't much experiency, and I'm Brasilian, so don't borry with my English, Please. Thanks for some help. Best regards

Hi, I Install STVD Version 4.3.12 for STM8S Application programming. I used Cosmic Compiler for the same application. But while opening programming in tool menu, STVD is crashes and pop up message " STVD has stopped working". Please find attached error image. My laptop having 64 Bit Windows 7 ultimate OS version and 2GB RAM. Is there any way to solve this issue?Nandish Jasani.

hi,My project used to compile using previous cosmic_32k limited version compiler. It's license got expired on 7th June 2018.After installing new compiler, when i compile, the " cxstm8 program crash " dialog box opens in windows 8.1.then, i have manually executed the instructions to compile my project."cpstm8 -o\svk.cx1 -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8" -i "C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\HSTM8" -p -u -pb -hmods0.h -l -d"__VERS__=\"V4.4.7\"" main.c"RESULT: It has sucessfully created svk.cx1file.2. then, "cgstm8 -o\svk.cx2 -l \svk.cx1"after this instruction, I get "close program" dialog box in windows 8.It has created the svk.cx2 file, but the file is incomplete. the last few line of the svk.cx2 files areL176:   .source   "test_gsmbase.c:294"   tn

Hi I have red the reference manual if STM8S001J3, but I still confused whether pwm is the same as TIM ? But when I checked in the section of TIM1, TIM2, adn TIM4... Only TIM1 and TIM2 that have pwm mode. Does it mean that STM8S001J3 only has 2 pwm modes ? Then I checked the TIM timer table, it does include the counting mode. TIM1 has counting mode of Up/down while the other only has Up counting mode, does that mean that when I reach a value of 1024 (just an example), it cannot come back again to 0 (example using potentiometer) ? also, I'm searching for any microcontroller that has 3 pwm modes that could count up and down but in SO-8 package. Thank you for the response

I'm working with a STM8S003F3P6 microcontroller and I need to know an unique ID for each device I will use. I know that PIC microcontrollers has an unique device ID that can be acessed by the user. My questions is: The STM8 microcontrolers have this information? If it's true, how can I acess this?Thanks in advance!!!

Posted on March 09, 2018 at 10:37--> While flashing code to stm8  board through ST-LINK/V2 programmer ,i am facing this problem ,it showing message       and unable to flash code , -->ST-LINK/V2 programmer not working properly ,rarely it will work ,it displaying following error messageFailed to set configuration with MCU name STM8AF5289: SWIM error [30006]: Comm init error: chip does not answer #failed-to-set-configuration-with-mcu-name-stm8af5289:-s

Posted on July 16, 2018 at 09:32ST has recently introduced 8-pin STM8 devices, while previously the lowest pin count available was 20.I would like to see more STM8 devices with relatively low pin count, e.g. 12 or 14 pins. Since I intend to replace an Elan Microelectronics EM78P153A �C by an STM8, a compatible pinout would be great, but any 12- or 14-pin device would be good.Are there any plans to introduce further STM8 devices with less than 20 pins?Philipp#stm8s001 #em78p153a #low-pin-count #new-device

Hello All- I'm working with an STM8S103. Trying to implement a motor control. I am using an IAR free development environment ( I HAVE to use the IAR). So far I'm controlling the clk, DIOs and analog ins. My issue is getting the analog ins to run on an EOC interrupt. It's hanging up. Any advice or example code that will compile in IAR would be appreciated.

I came across a situation where I have to measure the input to my board and I will be receiving a half sine wave dc voltage. Please help me if any one has a solution or a technique to measure the AC voltage.

I'm trying to compile an example from "ST Aseembler Linker", Chapter 4.4 "Segmentation"stm8/ segment byte at: 0 'code' segment byte at: 8000 'ram' segment 'ram>code' label1: nop endand i get the following error:Error in map file Debug\00_test.map: wrong map file format: can't find segment type! The command: "abslist Debug\main.lsr -exe Debug\00_test.s19" has failed, the returned value is: 1exit code=1.file 00_test.map has next contains:Segment List ------------   c:\users\flanker\documents\stvd\00_test\main.asm[3] 4- 7 0 - 0 'code' c:\users\flanker\documents\stvd\00_test\main.asm[4] 4- 7 8000 - 8000 'ram' [text]     Class List ----------   0 ' code' byte from 0 to 0 (lim FFFFFFFF) = 0% D 0 ' ram' byte from 8000 to 8000 (lim FFFFFFFF) = 0% C       External Label list -------------------   Symbol Name Value Scope Def(line)

Is it possible to use the ADC to measure the voltage on an external pin and use the internal reference at the same time? I have a product that is direct connected to battery, so my external reference voltage is variable. I'd like to use an external channel to measure a voltage, but use the internal reference. Are there any examples that exist for this?

show in the pic​

Posted on April 06, 2018 at 10:07I am using the STM8AL3188 and am unable to read or write flash beyond 32K, even though the device has 64K flash. This occurs at address 0x10000 (flash starts at address 0x8000 making it exactly halfway). I am using IAR. I managed to fix the flash write issue by editing the stm8l15x_flash.h file and moving the &sharpif defined STM8AL31_L_MD to the high density section. This appears to be a bug in the HAL file library for this device. I am now having an issue where I cannot read the flash correctly after address 0x10000. I get random/garbage values and I am not sure what else to try? Any help appreciated!#flash-error #stm8 #stm8al3188 #flash-read-and-write

The documentation indicates compatibility, with the additional LCD functions on the 152 seeming to default on reset to standard port functionality.Has anyone every done this successfully ?Mark

Posted on July 08, 2018 at 21:35i have the st-link V2 (the old one), and I'm looking for the 4 connections it needed, in order to program my CPU. any idea or link to such info? 

Does anyone know of a free debugger for the STM8 for Linux? Besides SDCC there does not appear to be any free development environment for the STM8 for linux? I was happily using sdcc until I hit a bug and decided to forget about sdcc.Is there any open source code for using SWIM? I tried implementing my own but could not get SWIM to respond to a read request - commands are ACKed but no data was sent. SWIM just went silent.

Posted on July 31, 2017 at 20:33[STM8S001J3] First STM8 MCU in 8-pin package: introductionDear STM8 Community,This is a very exciting moment for all of us. STM8 MCUs family was extended with a new device, which is named STM8S001J3. This new family member reshapes STM8 portoflio and takes it to the new level by introducing new, tiny, small form factor package - SO8N. STM8S001J3 belongs to STM8S Value Line series. All STM8S Value line microcontrollers are fully compatible with the existing STM8S product portfolio, sharing the same IPs, key parameter performance and development tools.STM8S001J3 has small package and little numbe

Posted on July 14, 2018 at 07:05Hello anyone,When compiling a program including Standard Peripheral Library in the output *.elf file, all unused modules was included. Does is SDCC the dead code elimination optimization and how to activate it?Thanks in advance.#dce #optimalization #sdcc #stm8-toolchain

Posted on July 09, 2018 at 13:57Hello,I have a question as to whether stm8L051F3 can do/calculate the floating operation or not,please help to let me know it,currently I can't check it with printf function, because if using the library with tool option, I got the size over error,example :float devided_Voltage = 0; float high_Voltage = 0; devided_Voltage = (float)(rawADValue / ADC_MAX_RESOLUTION * ADC_MAX_INPUT); high_Voltage = (devided_Voltage * (RESISTER_R8 + RESISTER_R9)) / RESISTER_R9;thanks.#stm8l051f3

Posted on July 07, 2018 at 08:08HiI use STM8S-Discovery Board with STM8S105C6 and ST Visual Develop v4.3.10, Windows 10.If I use command ADDW or SUBW this way:------------------------------------------------------------------------------Example 1                  ldw           X,&sharp400         ;Load 400 into X                  addw       X,&sharp100          ;Add direct 100 to word Xtest            cpw         X,&s