STM8 MCUs

Hello,There is confusion regarding the EXTI_SRx bytes.After a power on reset if a gpio (D0) is configured as input with interrupt and interrupts are enabled,What is the state of the EXTI_SR1 and EXTI_SR2 bytes when the interrupt handler runs?Do both SR1 and SR2 need to be cleared (written 1) to clear the interrupt?It is my understanding that if D0 generates and interrupt EXTI_SR2_PDF will be set as well as EXTI_SR1_P0F. Is this correct?What happens when two interrupts (eg: D0 and B2) happen at the same time? Will EXTI_SR2_PDF, EXTI_SR2_PBF, EXTI_SR1_P0F, and EXTI_SR1_P2F all be set?

I want to know how to view the critical bytes of a .list file. Which byte above the location is critical bytes, is the one to be removed

i have configured the spi in stm8l controller.I have attached the code below:void SetupSPI(){ PB_DDR |= BIT(6) | BIT(5) ; // mosi and sck as output. PB_DDR &= ~BIT(7); // miso as input. PB_CR1 |= BIT(7); PB_CR1 |= BIT(6)| BIT(5) ; // mosi and **** as push pull state for spi PB_CR2 |= BIT(6)| BIT(5); // enable fast mode  SPI1_CR1 = 0xBD;     // Disable spi ,set clock phase and polarity,Capture LSB on first edge ,set baud_rate(fSYSCLK/64),configure as master  SPI1_CR2 = 0x03; // Enable 2-line unidirectional data mode ,full duplex mode,Software slave management,Internal slave select as master SPI1_CR1 |= BIT(6); // Enable spi .}//Function to perform spi writevoid Spi_write(char *address,int length){  int index;  int collect;  for(index=0 ; index < length ; index++) {

After stvp loads the stm8s programming code and option byte, the created project file is copied to another computer in the workshop. After the directory file is changed, the .stp file cannot be opened. The reason is that the stvp adds the burning code. Hex is the absolute way to use, how can I solve this problem?

Hai, i have written a code for stm8l using st visual and i have added few header files for my code.When i add the files i am getting the error as shown in the image.the following are the header files added:stm8l15x_spi.hstm8l15x_SPI.Cstm8l15x.hPlease help me with the errors shown in the image attached with this.

Hi,I am trying to program the option byte in STM8S003 controller. I am able to do the same using STVP tool. It is not a practical method on production, so want to add the option byte config in the source code. for that I added the below code snippet. But it is not happening properly. Please help me to fix this issue, correct me if I am doing wrong. #define AFR_OPTION_BYTE_ADDR 0x4803#define AFR0_ENABLE 0x01void set_afr0_option_bit(void){ uint16_t option_status; uint8_t option_byte=0; option_status=FLASH_ReadOptionByte(AFR_OPTION_BYTE_ADDR); printf("\n\rOption Byte Status = %04x ",option_status); if(!(option_status & 0x0100)) { //option_status |= 0x0100; option_byte = (uint8_t) AFR0_ENABLE; FLASH_ProgramOptionByte(AFR_OPTION_BYTE_ADDR, (uint8_t)AFR0_ENABLE); printf("\n\rOption Byte updated successfully = %02x ",AFR0_ENABLE); } option_status

Is there any code initialization tools for STM8s MCU.Kindly share the details

i have configured spi in polling method.I have loaded the data into the transmit buffer and waited for TXE flag to be set.Unfortunately the flag is not being set and what could be the possbile reasons for that?I have attached the code configuration below #include "iostm8.h"#include "stm8l.h"#include <stdio.h>#include <string.h>#define BIT(x) 1<<xvoid SetupSPI(void);            //Intialize spivoid internal_clk_enable(void); //Enable oscilatorvoid Spi_write(char ,int);       //for writing through spichar Spi_read(char);        //for reading through spivoid test(char *k,int t);int data = 0;char v[10];int addr_data_array_length= 0,array_count = 0;char *read_buffer;char rece

 STVP seems to program my STM8A discovery just fine.     Just started with STM8 but I'm a long time Keil, CCS, Xtools user and I'm finding this environment a little haphazard.

Hello!RM on the STM8S003: https://www.st.com/content/ccc/resource/technical/document/reference_manual/9a/1b/85/07/ca/eb/4f/dd/CD00190271.pdf/files/CD00190271.pdf/jcr:content/translations/en.CD00190271.pdfI see on the page 54, FLASH_FPR/NFPR registers. Why they trimmed to six bit? The datasheet explain that the UBC field is 8 bit wide (0, 1, ...127, (128-255)->128 pages). It is mistake in the RM or not?Thanks!

Hello!If I separate stm8svldiscovery from it's stlink, do i need to do anything else, other than solder a 16MHz oscillator on the second part of the board?STM8SVLDISCOVERY board: https://www.st.com/en/evaluation-tools/stm8svldiscovery.htmlI know that I can just unsolder the jumpers, but I want a smaller STlink.

In Active halt mode 3v it is consuming 11uA This is fine. As we increase the voltage above 3v the current gradually increasing 3v ------->11uA3.3v------>80uA3.6v------->195uAAs per datasheet in Active halt mode it should consume 0.9uAPlease suggest why it is behaving in this way?How to reduce the current consumption in halt mode for above values.

Hello!The Cosmic compiler supports "weak" functions to override them in the future?

Hello,I am interfacing a stm8s003k3 MCU with 12c LCD but it is not showing any thing on display.It is stuck on I2C-> SR! shift register which is showing 0 but it should be 1.The i2c addres is 0x3F i have already checked the LCD with ARDUINO board it is workinh fine with the same address.I have pull up the SDA and SCL line by 10K .Please anyone help me out from this problem.It should be very helpful for me.

This is regarding Example project STM8S_StdPeriph_Examples.i'm using STVD, Cosmic Toolset to build the project. it builds successfully in Debug mode.when i change the mode to release mode, build fails with one of the error as below#error cpstm8 ..\..\main.c:29 can't open stm8s.h

while building the project i'm getting below error, Kindly guide us to solve this issue,..----------- Project discover - STM8 Cosmic - Configuration Debug -------------Compiling ..\..\src\stm8s_it.c...cxstm8 -i..\..\..\..\..\mail_sent +mods0 +debug -pxp -no -pp -l -dSTM8S003 -i..\..\..\..\libraries\stm8s_stdperiph_driver\inc -i..\..\inc -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8" -clDebug\ -coDebug\ ..\..\src\stm8s_it.c#error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8\mods0.h:1 FlexLM Feature has expired...\..\src\stm8s_it.c: The command: "cxstm8 -i..\..\..\..\..\mail_sent +mods0 +debug -pxp -no -pp -l -dSTM8S003 -i..\..\..\..\libraries\stm8s_stdperiph_driver\inc -i..\..\inc -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8" -clDebug\ -coDebug\ ..\..\src\stm8s_it.c" has failed, the returned value is: 1exit code=1.discover.elf - 2 error(s), 0 war

Hello. I use STM8L052C6T6 and Power is 3.3v.GPIO PB0 use ​External interrupt.It can 3.3V External interrupt input.Question: Can 5V External interrupt input?

Is there any example to implementing Zero Crossing Detection on STM8S207 or similar MCU.

hello, to develop board using STM8S001, I am looking for a graphical or block programming tool.May you help me?Henry

hai ,while debugging stm8l discovery board i got an error shown below.i found the similar issue described in many forums, and the solution was specified to install the st tollset but still it doesnt seem to work.How can i solve this issue?Please reply asap...C:\Program Files (x86)\STMicroelectronics\st_toolset\stvd\dao

i am using STM8L101F1.I happen to go through the datasheet and i found that the pin of the IC can be multiplexed.But i couldn't find any registers specified with the alternate functions for the pins of the controller.the following pins have the spi functions:PB7:MISOPB6:MOSIPB5:SCKPB4:SPI_NSShow should i go about configuring these pins for spi function.

My MCU is STM8AF6226，when I compile the code，The compiler reminded me gdi-error just like as "Wed Dec 19, 2018 08:17:00: Failed to set configuration with MCU name STM8AF6226: gdi-error [40606]: Configuration error: detected MCU different from the selected one "，How does this problem arise？

Hi.I have a problem using STM8L001J3.TIMER2 does not operate.​void main(void){ CLK->CKDIVR = 0x00; GPIO_Init(GPIOB, GPIO_Pin_3, GPIO_Mode_Out_PP_High_Fast);​ TIM2_DeInit(); TIM2->CR1 = 0x01; // Counter enabled TIM2->ARRH = 0x00; TIM2->ARRL = 0x9E; TIM2->PSCR = 0x01; // prescaler 1:2 TIM2->IER = 0x01; // Update interrupt enabled​ enableInterrupts();​ while(1);}​INTERRUPT_HANDLER(TIM2_UPD_OVF_TRG_BRK_IRQHandler, 19){  TIM2->SR1 &= 0xFE; GPIOB->ODR ^= 0x08;}​I used it like the above code, but it does not work.Please help me..I am using STVD and IAR for program development. Thanks in advance.

STM8L101 Real Time Clock Accuracy? PPM?No info in DataSheet

Is there a built in Real Time Clock in the STM8S001J3?PPM Accuracy?No info in DataSheet