STM8 MCUs

Hello to all. I am completely new to stm8. I want to communicate stm8s003 with mpu6050 6-axis gyroscope and accelerometer sensor through i2c. Can anyone help me how to code it in st visual develop?Sorry for my bad English

Hi,Is it possible to restore STM8S001 for programming after set it to HALT mode?I try to use halt mode for STM8S001 and STM8S003.The programmer worked, when I used __wait_for_interrupt();but stopped after replacing this procedure to __halt();After set STM8S001 to halt mode I can't reprogram this MCU,IAR EWB for STM8 shows the error:'Failed to set configuration with MCU name STM8S001J3: SWIM PROG error [4]: Memory write error'Now I try to test halt mode for STM8S003, but I added a cycle about 6-7s for SWIM PROG may start to work. As I see, SWIM PROG really works, when I start it during 6s after Power On, but doesn't start to work after this time.Here is a program, which I loaded to STM8S001:#include <intrinsics.h> #include <iostm8s001j3.h>   #pragma vector = EXTI3_vector __interrupt void PD_IRQhndl(void) { PB_ODR_ODR4 = !PB_ODR

HelloI'm using STM8S001j in my projectthe Project is simply an output on PB4 and output on PD6I needed to store in the EEPROM data every time the input is getting low I noticed that some times the data is recorded and some times not I monitored the EEPROM using the programmer to read the data and had seen that some times data written some times erased I wrote the write code several times to make sure that it works but notHere's the codeunsigned short tim2_count;bool t_flag ;unsigned int DF_count = 1;unsigned int EE_add_RW = EE_add_start;void GPIO_conf(void);void clk_conf(void);void Tim2_conf(unsigned short T_counts);void EEPROM_conf(void);void EE_R_V(void);main(){ unsigned char delay_count = 0; unsigned short temp_count = 0; GPIO_conf(); clk_conf(); EEPROM_conf(); Tim2_conf(124); // 1ms

Because I don't find related information elsewhere (datasheet, application notes, etc.) I would ask it there.​So, I have famous W1209 thermostat board with Nuvoton MCU, which I'm replace by an STM8S103F3.For proper operation it is needed to place an capacitor between VCAP and GND pins​.​There is exactly place where trouble occurred: unluckily capacitor was been shorted, so, I'm literally shorts MVR to GND.​When I'm connected to MCU via ST-LINK (5 Volt, SWIM, RST and GND) MCU isn't respond, don't allowing any kind of data exchanging.​When I'm checking state of MCU by finger (old danger behavior, I know) I'm nearly burn it and immediately disable ST-LINK adapter.When I replaced damaged capacitor by right one, MCU allows at least flash/register state reading.​So, question: did my STM8S is reliable now, after nearly minute-two short circuited their MVR to ground and powered by ST-LINK?​

I am using STM8AF5286 for one of my design. I am using CAN port for data transmission. I am using standard ST library for CAN communication. I don't see any 16-bit CRC calculation included in CAN_Transmit function of CAN driver function. Neither I see any CAN controller register where CRC is to be stored. How CRC is calculated and transmitted in CAN packet by STM8AFxx?

Hello to everyone, I am dealing with STM8S103F3P6 IC. I try to send a message using TX interrupt but I have never succeeded. I have checked the example of the UART interrupt. Also, tried to develop same code. However, I got still zero. I took interrupt vector function from STM8 examples. Where is the my mistake? How can I figure out?Here my init, main, and interrupt vector function;void init_handler(void){ CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1); UART1_DeInit(); UART1_Init((uint32_t)9600, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE); UART1_ITConfig(UART1_IT_TXE,ENABLE); enableInterrupts(); UART1_Cmd(ENABLE); }main() { init_handler(); while(1); }INTERRUPT_HANDLER(UART1_TX_IRQHandler, 17) { /* In order to detect unexpected events during development, it is recommended to set a breakpoint on the following instruction

After the STM8L152K6 device is programmed, it must be turned off and then on again for normal operation. However, if the STM8L152K6 device resets by pressing the Reset button after programming, it does not work. I have to do the power on reset once after programming, and after that, I reset it by pressing the reset button and it works normally. For my project, power on reset is not easy because the battery is built-in.I will wait for your answer.Thank you.

I am (obviously) brand new to stm tools. I have installed the stvd and cosmic compiler and I want to use the firmware library. I have downloaded the STMS version. How do I install and use it? I've googled til my fingers are sore.

I have new application used stm8l051, The MCU using timer2(GPIOB2) to generator 125khz PWM, duty cycle from 0% to 100% every 500ms with 16Mhz clock source.void Timer2_PWM_Init(void){ GPIO_Init(GPIOB, GPIO_Pin_2, GPIO_Mode_Out_PP_High_Fast);  CLK_PeripheralClockConfig(CLK_Peripheral_TIM2,ENABLE);   TIM2_DeInit();                                               TIM2_TimeBaseInit(TIM2_Prescaler_1, TIM2_CounterMode_Up, 127);       // 16MHz clock source, 125kHz     TIM2_OC1Init(TIM2_OCMode_PWM2, TIM2_OutputState_Enable, 0, TIM2_OCPolarity_Low, TIM2_OCIdleState_Set);   TIM2_Cmd(ENABL

I have sent request to send the key for STM8 Cosmic C compiler arround 3-4 days back but unable to receive till today. Can you send the license key

Based on Cosmic compiler document, I am trying to use #pragma to store the const object into flash memory region 0x17f80. Even I have configured the liker config,Then I have added below code in .c file.#pragma section const {applflag}const u32 appl_flag = 0xAA55AA55;#pragma section const {}But, I cannot see the value 0xAA55AA55 in the address. Please find the linker file commands below for your reference.# Segment ApplFlag:+seg .applflag -b 0x17f80 -m 0x80 -n .applflagPlease correct me if I did any mistake.

Hello,When I flash a user application to STM8L with STVD, it works fine. As long as I do NOT power off MCU, I can read back flash content with STVP. For the first byte located at address 0x8000 (beginning of IT vector table), value is 0x82, which is normal.But, if I disconnect USB cable and reconnect it, and if I read flash content with STVP, the data have been modified and the first byte is not 0x82 any more ! Moreover, it seems that most of data are 0 (not all of them) from address 0x8000 to 0x9200.I replaced my user application by a simple one, let's say an "empty main function", and the issue is still there.Any idea ? Thank you in advance for any help... :)Julien

When initially burning the MCU, I want to save some EEPROM data. Lets say the data 123 is to be saved in location 1 of EEPROM. If I write the below C code before the main function, will it work? Once the data is stored the first time the program is burnt into the MCU, I do not want it to be re-saved every time the program is run.void EEPROM_InitData(){uint8_t data = 123;FLASH_ProgramByte((FLASH_DATA_EEPROM_START_PHYSICAL_ADDRESS + 1) , data);}Thanks for your help!PiSquared

Hi,I am using input capture of Timer2 Ch1 in stm8s003f3(20 pin uC). I had configured the timer 2 and provided pulses in PD4 pin , but i am not getting interrupt in Timer2 interrupt handler.void InitTimer2(void){TIM2_DeInit();CLK->PCKENR1 |= 0x20;      //Enable Peripheral Clock Tim1//GPIOD->DDR &= 0xF7;//GPIOD->CR1 |= 0x08;TIM2->IER |= 0x02; //0x02      //Capture1 interrupt enable//TIM2->EGR |= 0x02;TIM2->CCMR1 |= 0x01; // CC1 channel is configured as inputTIM2->CCER1 |= 0x01; //Enable captureTIM2->PSCR |= 0x07;       //16MHZ/128 = 125KHZTIM2->ARRH = 0;TIM2->ARRL = 0xFF; //8us counterTIM2->CR1 = 0x01;}INTERRUPT_HANDLER(TIM2_CAP_COM_IRQHandler, 14){ /* In order to detect unexpected events

1. I have written below code for PWM generation for STM8S003F3. Two pwm pins are used inverted with dead time.2. But I observed this graph on CRO of two pins is this. I was expecting one pin to turn off before another turn on i.e deabband.. But reverse is happening here.More I increase deadband it has reverse effect. What I am doing wrong here?void all_tasks_manager(void) { uint8_t key; uint8_t start = 0U;   float32_t arr,ccr,y; uint16_t temp1,temp2; g_segment_display = 0U; SEG_1_DISABLE(); SEG_2_DISABLE(); segment_register_update(5); // display ht g_segment_display = 1U; /* TIM1 Peripheral Configuration */ TIM1_DeInit();   /* Time Base configuration TIM1_Prescaler = 0 TIM1_CounterMode = TIM1_COUNTERMODE_UP TIM1_Period = 65535 TIM1_RepetitionCounter = 0 */ TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 1067,0);   /* Channel 1, 2 and 3 Configuration in PWM mode */ /*? TIM1_OCMode = TIM1_OCMODE_PWM2

I'm using the TSM8S001J3 for a small application that requires Pin-8 (PD1/ SWIM, PD5/ AIN5/ UART1_TX) to be used for the RS232-TX. Currently in the code I have a way to halt the GPIO assignment prior to reassigning the SWIM pin if needed by holding the RS232-RX low during the boot process.What I would like to find is a way I could turn off the UART1_TX function on Pin-8 and return it to the SWIM fucntion from within the program. My thought was to send a RS232 command that would reassign the pin.Unfortunately I can't find any documentation on how to re-assign the SWIM pin to being active after it has been used for other functions.Help please?

I am unable to write to flash of STM8S105C6T8 although I can read the flash. I am using stlinkV2 via SWIM and stm8flash programming tool under ubuntu. I tried to reset option bytes to factory default and use the -u (unlock) option of stm8flash but both failed. I tried this on two boards (which I built); on one, the read out was all zero, and on the other one there seems to be something there. I had experienced something similar before and that problem was fixed by writing option bytes to default values. Can anyone help?

Here is the initialization code...void InitPwm(void){TIM1_DeInit();TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_CENTERALIGNED1, 800, 0);TIM1_OC1Init(TIM1_OCMODE_PWM1,  TIM1_OUTPUTSTATE_ENABLE,  TIM1_OUTPUTNSTATE_ENABLE,  100, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_RESET,  TIM1_OCNIDLESTATE_SET);  TIM1_OC2Init(TIM1_OCMODE_PWM1,  TIM1_OUTPUTSTATE_ENABLE,   TIM1_OUTPUTNSTATE_ENABLE,  200, TIM1_OCPOLARITY_HIGH,   TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_RESET,  TIM1_OCNIDLESTATE_SET);  TIM1_OC3Init(TIM1_OCMODE_PWM1,  TIM1_OUTPUTSTATE_ENABLE,  TIM1_OUTPUTNSTATE_ENABLE,  300, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_LOW,

I've been struggling with this problem for some time. Currently I'm porting my application from STM8L051 to STM8L151. Whenever I start USART1 Receiver, the USART Status Register (USART->SR) shows "0xfa", indicating Parity and Overrun Error. I tried with a different chip and still the same results. I'm using a bare chip soldered to QFP32 board with 100nF capacitor between VDD and VSS. The same program works ok on STM8L051. When I turn on USART TX only, USART->SR shows 0xC0. However when I turn on receiver, I get errors on USART and they won't disappear even after reading from DR and SR registers. I tried different power supply and still the same issues....I'm using internal clock with default frequency of 2Mhz (HSI/8). If I change the prescaler to DIV1, still no progress.Here's USART code:CLK_PeripheralClockConfig(CLK_Peripheral_USART1, ENABLE);   //GPIO_Init(GPIOA, GPIO_Pin_3, GPIO_Mode_In_PU_No_IT); //GPIO_External

I downloaded the STM8S_TouchSensing_Lib_V2.5.0 , and the function of touch sensing key has been done completley. Now i'd like to add the adc && uart based on the current project, you can see the detail on the attachment, but there will be a linker error as below"Error[Li005]: no definition for "assert_failed" [referenced from E:\Work\Code\STM8S_TouchSensing_Lib_V2.5.0\Projects\Examples\STM8S207K6_Ex02_Heat\EWSTM8\Debug\Obj\stm8s_uart1.o] " "Error while running Linker "Would you please help me check how to correct it?Best Regards,Fei

I am working with STM8S003F3 in our custom board . I need to communicate with an transceiver through SPI. I need a sample code for configuration of SPI in master mode and write /read process in SPI. Pls support by providing sample project.

Hello,I'm trying to implement serial communication between a stm8al3l68 an a serial terminal installed on my PC.The problem is that there is no virtual port on my STM8 as on STM32.How can I communicate with the PC if there is no virtual Port. What kind of hardware should i buy ?--> HCCABL0015 USB to RS232 TTL Serial Interface Cable like explained there : http://www.colecovision.eu/stm8/STM8S-DISCOVERY%20Serial.shtmlAnd when I'll have this hardware, i just have to init USART with :STM_EVAL_COMInit(COM1, (uint32_t)115200, USART_WordLength_8b, USART_StopBits_1, USART_Parity_No, (USART_Mode_TypeDef)(USART_Mode_Tx | USART_Mode_Rx)); USART_Cmd(EVAL_COM1, ENABLE);and send data with void USART_SendData8(USART_TypeDef* USARTx, uint8_t Data)

I'm attempting to program this chip to act as a thermometer that can run on a low power solar panel. The issue I'm having is the power draw is way too high. Halted i have the power draw with an LCD and RTC interrupt ready at 5.5uA, but when I'm using the ADC the draw is over 1600uA. How can i get this draw lower?initializationvoid ADC_Icc_Init(void){ CLK_PeripheralClockConfig(CLK_Peripheral_ADC1, ENABLE); //Enable ADC clock ADC_DeInit(ADC1); //de-initialize ADC ADC_Init(ADC1, ADC_ConversionMode_Single,ADC_Resolution_12Bit, ADC_Prescaler_1); ADC_SamplingTimeConfig(ADC1, ADC_Group_FastChannels, ADC_SamplingTime_4Cycles); ADC_SchmittTriggerConfig(ADC1, ADC_Channel_24, DISABLE); // disable SchmittTrigger for ADC_Channel_4, to save power ADC_DMACmd(ADC1, DISABLE); ADC_TempSensorCmd(DISABLE); ADC_VrefintCmd(DISABLE); ADC_ChannelCmd(ADC1, ADC_Channel_24, ENABLE);}

For some reason I am not able to see pins behavior in plotter. I am not able to see PD 2,4,5 output on plotter on STVD tool.I got the testcase from https://www.st.com/content/st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm8-embedded-software/stsw-stm8016.htmlTestcase name and path - C:\STM8L15x-16x-05x-AL31-L_StdPeriph_Lib\Project\STM8L15x_StdPeriph_Examples\TIM1\TIM1_PWMOutputThanks

I've generated an output file from STVD in .elf format. But stvp requires motorola hex format. Do I have to do another conversion?