STM8 MCUs

Dear Forum Members,I am new in STM8 and I would like to familiar with this MCU series and use it.For starting, I would like to programming in assember. When I make a new project the IDE SW automatically generatesa basic code, but I do not understand what is this for. Anyway, I do not understand its sxntax, directives etc.Could someone give me a documentation about assembler syntax?And I would like to ask reffering to the Flash prgramming how the Bootloader, ISP, IAP programming exactly work, for example which MCU pins used and the required HW tool adapters. For example whether the Bootloader use the normal UART TX/RX pins or other pinis and in this case serial comm onyl emulated by the Boot SW in the ROM.Thanks in advance,József

I need to decode ASK/OOK signal, for this aim I need to know the period in microseconds between several edges. I decided to use TIM1 for this purpose, here is my code // Set fCPU = 16MHz CLK_CKDIVR = 0; CLK_PCKENR1 = 0xFF; CLK_PCKENR2 = 0;   uint16_t micros() { return (uint16_t) ((TIM1_CNTRH << 8) | TIM1_CNTRL); }   void tim1_init(void) { // 1MHz = 1uS TIM1_PSCRH = 0x00; TIM1_PSCRL = 0x10;   TIM1_IER = 0x00; // disable interrupts TIM1_CR1 = 0x01; }and to get signal I useISR_PORTD(handlerD) { state = PinRead(GD0_PORT, GD0_PIN); uint16_t m = micros(); if (state == HIGH) { lolen = abs(m - prevtime); } else { hilen = abs(m - prevtime); } prevtime = abs(m); if (state == HIGH) { if (flag == 0) { // the end of packet if (CheckValue(Pe, hilen) && CheckValue(Pe2, lolen)) // valid 1 { if (bcounter < 32) code1 = (code1 << 1) | 1; else if (bcounter < 64) code2 = (code

Hello, I use STM8AF as MCU, and the project is ASIL B level with functional safety. I downloader the STM8S/A standard driver, I apply MISRA C 2004 as rule to check the project. Oh, I forget to told the IDE, we use IAR for STM8. And we build the project, if no MISRA C check, the project can build success, but with MISRA C check failed every time. the standard file not meet MISRA C 2004, 1-1, 5-1, 8-10, 10-1, 12-4, 14-3, 14-8, 14-10, 16-8, 17-4, 18-4, 19-10;Do there have one version for functional safety lib?Thank you.

Please help these issues. Below issues 1 and 2 do not seem to affect each other. Goal: creating an one-pulse PWM output using TIM1 with output not changing state at the end of the pulse in idle. For example, in the scope capture (attached) I need to have ch1,2 to stay low from the point 63us and beyond (idle). Chn4 to stay high from the point 63us and beyond (idle).Tools: STM8S105C Discovery board. using STVD, Cosmic compiler, library for Discovery board Results/Issues:1.    Attached is scope captures of TIM1 chn1,2,42.   Issue1: measured freq is ~15.8KHz (63us). I expect 100Hz (10ms) per code below. Although, I can change the freq correctly with TIM1_TimeBaseInit(). For example, if I double the freq in the code, I’ll see double freq on scope. Measured duty cycle is correct. It looks like clock for TIM1 is not 16MHz. But I can’t find where the culprit is.3.   

I have recreated the same circuit i used to program the STM8S003 into a STM8S005 i built 2 boards but the software its not being able to connect to the MCU. I leave the schematic:Is there anything Im missing could it be that the PCB traces in my board are too long? or is it more likely that i damaged them during solderin?

Hello For making 1ksps sample , how much should be adc clock frequency and how much is current consumption

I couldn't find a forum for the cosmic compiler. If anyone knows of one let me know and I'll ask there instead.I have code that is compiling wrong. A function has a u16 parameter and that param is being referenced as u8. This is the declaration of the function ...u16 getTempFromAdcCount(u16 count);This is the function ...u16 getTempFromAdcCount(u16 count) { u8 countOfs, lowIdx, idxOfs; u16 lowTemp, hiTemp, tempDiff; if(count < MIN_ADC_COUNT) return 200*10; if(count >= MAX_ADC_COUNT) return 0; count -= MIN_ADC_COUNT; lowIdx = countOfs >> DELTA_SHIFT; idxOfs = countOfs & DELTA_MASK; hiTemp = tempTable[lowIdx]; if(idxOfs == 0) return hiTemp; lowTemp = tempTable[lowIdx+1]; tempDiff = hiTemp - lowTemp; return hiTemp - ((tempDiff * idxOfs) >> DELTA_SHIFT); }This is the call ... temp = getTempFromAdcCount(adjCount);This is the asm for the call. Note

I've worked a million hours on this dev board. Now I can't even communicate with the board any longer. I need help. Do I replace the STM32F103. What about the STM32F103 firmware as well?

Hi Team,I am using STVD version 4.3.12. I am newbie to this.... i wish to know about project information like how much the project size consume after build.like this....(Example shown below)text    data     bss     dec     hex filename6036      40    1120    7196    1c1c c:\wsp_Freedom\Freedom_Accel\FLASH\Freedom_Accel.elfPl guide me to get above information after building of my project...Thanks and Regards,Anand Kumar.

In my project i have interfaced stm8s003f3 with3 digit 7 segment display via 74hc595d in order to reduce the used pin count in stm8s. From the Stm8s 3 pin are to 74hc595d (sh_cp,st_cp,ds) and three pin to digits pin of 7 segment display. I attaching my program code. please provide some suggestions . /* MAIN.C file *  * Copyright (c) 2002-2005 STMicroelectronics */#include "stm8s.h"void clock_setup(void);void GPIO_SETUP(void);void serial_clock(void);void latch_enable(void);void data_show(unsigned char data);void digit_cal(unsigned char digit);void _delay_us(int delay);unsigned char Numbers[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};main(){ GPIO_SETUP(); clock_setup(); digit_cal(1); while (TRUE) { //digit_cal(1); }}void GPIO_SETUP(void){ GPIO_DeInit(GPIOD);

please check the pictures and tell me about this.

The problem faced is that values send from controller is not displayed on 3 digit seven segment. I am attaching the program please tell me where i am doing wrong./* MAIN.C file *  * Copyright (c) 2002-2005 STMicroelectronics */#include "STM8s.h"void ComPin_Setup(void);void clock_setup(void);void GPIO_setup(void);void TIM2_setup(void);void delay_ms(int delay);void SHCP_Clock(void);void Latch_Enable(void);void Data_Show(unsigned int Data);void digit(char digit_in); int buttonpressed1=0;int a2,a3,a4; int pressed_confidence1=0; int released_confidence1=0; int i,j,m; unsigned char seg=0x01; unsigned char n=0x00;unsigned char binary_pattern[]={0xC0,0xF9,0xA4,0xB0,0x99, 0x92,0x82,0xF8,0x80,0x90};/*{0b11111100,//pattern for seven segmen

I have been following this tutorial:http://stm8sdiscovery.nano-age.co.uk/adventures-in-stm8-assembler/getting-started-with-the-blinking-led. When he does the "run to cursor" it stops on the instruction and highlights the editor window. Mine the output window says run to 8088 and the disassembly window is at 0x6000. I can't get it to step through the instructions. Maybe I have a setting somewhere set wrong? Is there an instruction manual for the debugger?Thank you

@svlreg INTERRUPT_HANDLER(EXTI_PORTD_IRQHandler, 6){ /* In order to detect unexpected events during development,   it is recommended to set a breakpoint on the following instruction. */ if((SWITCH == RESET) && (flag == SET)) { OFF_STATUS = TRUE; flag = RESET; }} this is my handler function In my application i am using a switch(not a push button) to on and off the alarm. here i am getting the problem is the interrupt handler is continuously executing.it seems the interrupt is rise continuously how to clear the interrupt in the interrupt routine I am using stm8s003k3.controller thanks in advance

My following code is not working for sending data over LINUART port of STM8AF5286. I am using STVD and STM8_Standard_Project_Template.GPIO_Init(GPIOD, GPIO_PIN_5, GPIO_MODE_OUT_PP_HIGH_FAST);UART3_DeInit(); UART3_Init(9600,UART3_WORDLENGTH_8D,UART3_STOPBITS_1,UART3_PARITY_NO,UART3_MODE_TX_ENABLE);UART3_Cmd(ENABLE);UART3_SendData8(0xAA);Can you please guide me as why data (0xAA) is not coming out on PD5 pin of microcontroller?

Hi. Is there a way for an STM8 MCU to determine programmatically if the SWIM interface / ICP / STVD debugger are being used? I've tried checking the SWD bit in CFG->GCR and SWIM->CSR. But neither byte seems to change from SWIM debugging to a power on restart. The reason I ask is because an area of data EEPROM memory is always being overwritten while debugging and evidently isn't while running without STVD.

hi alli am first time user to ST micros. (8bit motorola mostly)I am looking at using stm8L132r8 in an ultra low power device, which needs 10year battery life.the micro will be stopped most of the time, woken by the RTC running from external 32khz xtal once a day.The data sheet indicates a current draw of < 0.5 uA in this mode (@3v3).Is this really achievable?don

I am new and novice can some one guide for using STM8Sxxx three-phase BLDC motor control software library V1.0. From the manual I am unable to build. Is there a tutorial or example on it. Looking for closed loop250W 36V Motor.

I am using STM8AF6213 MCU in my project. I am using PD6 (AIN6) pin to read analog value. I use PD4 (TIM5_CH1) to generate PWM. But the stm8_adc1.h and stm8_tim5.h libraries that I included in my project do not work properly. It does not see the functions in the library.#include <stm8s.h> #include <stm8s_gpio.h> #include <stm8s_conf.h> #include <stm8s_tim5.h> #include <stm8s_clk.h> #include <stm8s_adc1.h> uint16_t CCR1_Val1 = 5533; uint16_t CCR1_Val2 = 4800; uint16_t CCR1_Val3 = 4000; static void TIM5_Config1(void); static void TIM5_Config2(void); static void TIM5_Config3(void);   uint16_t Conversion_Value = 0; static void ADC_Config(void); static void GPIO_Config(void); void main(void) { CLK_DeInit(); CLK_HSECmd(DISABLE); CLK_LSICmd(DISABLE); CLK_HSICmd(ENABLE); while(CLK_GetFlagStatus(CLK_FLAG_HSIRDY)==0); CLK_ClockSwitchCmd(ENABLE); CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1); CLK_SYSCLKConfig(CLK_PRESC

As a newbie I'm struggling to understand the following line of code:TIM3_BKRConfig(TIM3_OSSIState_Enable,TIM3_LockLevel_1,TIM3_BreakState_Enable,TIM3_BreakPolarity_High,TIM3_AutomaticOutput_Enable);Introductory material that I've found on timers/PWM doesn't go this far. What are the different arguments to this function? What is the function seeking to do?Thanks in advance for any help.

I have an asm program written in ST Visual develop. Using stvd, and updloading to a STMS103f3, it runs fine. Change the target in ST v develop and build it and upload to the discovery bd thru it's st-link, it doesn't run. Checking the register addr etc shows all the same, so it should work. Here is my code. I must be missing something to change between the boards or the built in st-link is the problem. It is attached so connecting my st-lin v2 or my ver 3 can't be connected without removing shorting links on it.

HiI have a problem when I start writing the first page of the program.I am running at 115200 8 data bit, 1 stop, no parity.I am running in ECHO mode, meaning I return all bytes from the bootloader.I have send the SYNC byte, at power up, and getting an ACK back ( which is being ECHO'ed back to bootloader)Command is set (and its inverted ), and I am getting an ACK back (which is ECHO'ed back to bootloader)Page is send (0x00008000) and the checksum.. The bootloader sends an ACK back (and I ECHO this back too).Now when I send the page (N-1, [N bytes], checksum) I do not get anything.I have tried sending more bytes (if the first byte was not interpreted correctly), changed baudrate, tried EVEN parity, etc..., but everything just gets me here.. I have tried sending an illegal command (inverted incorrect), and then I get a NAK as expected.Can anyone point me

Hi,I am trying to figure out how a set of buttons interfaces with the microprocessor - an STM8S 003K3T6C ([url=https://www.st.com/resource/en/datasheet/stm8s003f3.pdf]datasheet[/url])I am familiar with simple button config - you pull GPIOs high or low with the button and detect the change.I don't understand what is going on with this circuit at all... I want to know so I can bypass the push buttons and control it programmatically using an external MP.There are 6 buttons that control e.g. power on/off, fan direction, raise / lower a hatch etc.I have traced them back to these pins on the microprocessor:[img]https://i.ibb.co/zPvJR5X/pin-out.png[/img]Fan Direction:Button 1 connects 10 -> 32Button 2 connects 8 -> 32 Hatch up/downButton 3 connects 10 -> 2Button 4 connects 8 -> 2Button 5 connects 10 -> 28 (Sensor on/off)

Hyperterm from windows XP won't run correctly on my window 10. I config it for 8 databits and when it connects it is 7 and doesn't recognize some characters. All other terminal programs it prints garbage. Why ASCHII?How to change it?

I have tested my stm8s-discovery board for 2 days. The MCU is stm8s105c6t6, the Hex format file produced in c language on the IAR EW platform, could run as expected when uploaded into the board, but the final file from assembly language, both in Hex and .s19 format, generated from STVD, cann't run at all when uploading.I have tested download code from STVD and STVP, in format of intel hex, intel hex extended, and motorola s19, neither of it could run.So, my question is, whether file produced in assembly code could run on stm8s105c6t6? Is there any other configuration option, or due to ST-LINK(v2) or stms8-dicovery board itself?