STM8 MCUs

I downloaded the Windows installer for STM-STUDIO-STM8 from st.com HERE. The installation works until this error message pops up (see the screenshot). I removed the read-only file property as requested, but the same error persists. Do you know any fix or workaround?Also, STM-STUDIO is listed as an STM8 dev tool, but the error message refers to STM32. Why is that?Thank you for your support!

I am using STM8S103F3P

Hi,​​​I have used Stm8 controller and I have change the keys from OTAA to ABP. In OTAA mode I have get the joining uplink(first uplink) but i didn't get the joining uplink in ABP.​ When I reset the device after get the second uplink in the network server. At that time I have got the first uplink in the network server. What is the reason.​Second one is, I got the first uplink when reset the device after got the second uplink. as like this again'i reset the device before get second uplink,that time the network server did not get the joining uplink(first uplink).​I have used TTN server and STM8 Controller.​

Most likely, the programmer who wrote your assemble used a text document provided by the engineers for his info on the STM8 instruction set. Later on, a technical writer converted that text document into a snazzy PDF for outsiders such as myself. Errors were introduced when the info was hand-copied, and nobody ever checked the accuracy of the PDF because nobody expected anybody to need accurate informatio.It is a sad commentary on the skill-level of STM8 programmers, but none of them have ever written an assembler for the STM8 and so none of them found these errors that I found in my first few days of learning how the STM8 works. I'm really not the kind of "programmer" who relies on having somebody smart write his assembler for him, then claims to be a super-duper expert on STM8 assembly-language.Can I just be given the original text document from the engineers? I can do without the snazzy PDF that the technical writer provided. I can't write my assembler withou

To protect variables in a class b application a redundant complementary variable is stored in a separate memory location. The idea is to check if the exclusive or of those 2 variables is 0xFF before using them. My question is what exactly happens if the comparison is interrupted and the value is changed in the meantime? Following is a short example:1013           ; 374   if ((spl_state_u8 ^ spl_state_inv_u8) == 0xFFU)1015 0287 b60c     ld a,L71_spl_state_u81016 0289 b80d     xor a,L12_spl_state_inv_u81017 028b a1ff     cp a,#2551018 028d 2704ac2a032a jrne L134The value L71_spl_state_u8 is loaded into register a (1015), then a hypothetical interrupt occurs which changes the value of L71_spl_state_u8 and the complementary value L12_spl_state_inv_u8. After the int

Hello.I want to read the 96 bit unique id of STM8AF5288TCY microcontroller.I have gone through some resources like the data sheet of stm8s105c4.This mentions that the unique id is present 0x48CD address.I want to know the address at which it is present for STM8AF5288TCY microcontroller as the datasheet does not specify it. I want to read it as :#define SERIAL_NUM_ADDR 0x49CDconst uint8_t * const serial= (uint8_t *)SERIAL_NUM_ADDR;Please help me in identifying this unique id for STM8AF5288TCY

Hi all,I am trying to use STM8L051 port c pin 0 as an output to drive a NPN. But I find that PC0 & PC1 cannot be set by using ST HAL library. All the registers seems ok (DDR, ODR, CR1 & CR2). And PC4,5,6 can be driven. Can anyone please give me a hand by providing some hints? AHere are the code:#include "stm8l15x.h" #include "main.h"   void delay_ms(uint16_t u16_ms) { for(uint16_t u16_a = 0; u16_a < u16_ms; u16_a++) { for(unsigned short u8_a = 0; u8_a < 37; u8_a++) { nop(); } } } void main(void) { CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_64);   /* Select HSI as system clock source */ CLK_SYSCLKSourceSwitchCmd(ENABLE); CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSI); // CLK_SYSCLKSource_HSI   while (CLK_GetSYSCLKSource() != CLK_SYSCLKSource_HSI); GPIO_Init(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6, GPIO_Mode_Out_PP_Low_Slow); while(1) { GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_4|GP

As soon as I add USART initialization, SPI starts sending data using LSB and receiving with MSB(as it was intended) bit order.SPI init code:/* SPI configuration */ SPI_DeInit(); /* Initialize SPI in Slave mode */ // SPI_Init(SPI_FIRSTBIT_LSB, SPI_BAUDRATEPRESCALER_2, SPI_MODE_SLAVE, SPI_CLOCKPOLARITY_LOW, SPI_Init(SPI_FIRSTBIT_MSB, SPI_BAUDRATEPRESCALER_2, SPI_MODE_SLAVE, SPI_CLOCKPOLARITY_LOW, SPI_CLOCKPHASE_1EDGE, SPI_DATADIRECTION_2LINES_FULLDUPLEX, SPI_NSS_HARD,(uint8_t)0x07); SPI_ITConfig(SPI_IT_RXNE,ENABLE); SPI_ITConfig(SPI_IT_TXE,ENABLE); SPI_Cmd(ENABLE);UART init code:UART1_DeInit(); UART1_Init((uint32_t)1000000, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, (UART1_SyncMode_TypeDef)(UART1_SYNCMODE_CLOCK_ENABLE | UART1_SYNCMODE_CPOL_LOW |UART1_SYNCMODE_CPHA_MIDDLE |UART1_SYNCMODE_LASTBIT_ENABLE), UART1_MODE_TXRX_ENABLE); UART1->BRR2 &= (uint8_t)(~UART1_BRR2_DIVF); UART1_Cmd(ENABLE);

Hi everyone! I m trying to compile my project but there is a problem. I use IAR as compiler and STM8S103XX. Why is that?

Hi everyone, I m new at STM8. I downloaded IAR to programme but I even couldn't open template that I found in standard peripheral llibrary (I meant STSW-STM8069)

Hi Iam student and I now only about Arduino but now I have a project to be creat by using stm8s001j3 so please help me how to connect my STM to Arduino IDE specifically stm8s001j3 and how to use its I2C ​

I'm finding a window between 1.47V and 1.5V where the device is consuming 1mA (as opposed to <50uA) this is only apparent when the voltage is rising and I assume the device trying to power on. The documentation states it has zero power on reset but this behavior doesn't seem to match.I also found this paragraph which I thought was relatedWhen the BOR is disabled, a "grey zone" exists between the minimum operating voltage(1.65 V)(a) and the VPOR/VPDR threshold. This means that VDD can be lower than 1.65 Vwithout device reset until the VPDR threshold is reached. For more details concerning thepower on/power down reset threshold, refer to the electrical characteristics of the datasheetbut the footnote states: "Not applicable on STM8L05xx value line devices. Refer to datasheets for more details" Which is what I have so now I'm not sure. I'm just looking for a way to prevent this spike in power consumption, I

I am using a NUCLEO-S8208RB to develop UART1 communication in half-duplex, single-wire mode. The device receives messages (packets of bytes) using the UART1_IT_RXNE_OR interrupt. The next step would be to transmit a byte packet in response, without an interrupt. That does not work. I suspect the UART1_TX configuration is wrong.* IDE: STVD with COSMIC compiler and STVP.* STM8 Standard Peripheral Library.UART1 configuration code (this works):UART1_DeInit(); UART1_Init((uint32_t)UART1_BAUDRATE, UART1_WORDLENGTH, UART1_STOPBITS, UART1_PARITY, UART1_SYNCMODE, UART1_MODE_TXRX_ENABLE); UART1_ITConfig(UART1_IT_RXNE_OR, ENABLE); UART1_HalfDuplexCmd(ENABLE); enableInterrupts();The UART1_RX interrupt call function uses this code snippets:void UART1_RX_Handler_Callback() { uart1RxData_u8 = UART1_ReceiveData8(); ... UART1_ITConfig(UART1_IT_RXNE_OR, DISABLE); }The following code for UART1_TX does not work. It 'h

When in unidirectional Transmit-only mode, how can I use MISO pin as generalpurpose I/O whithout disturb the SPI?Thanks for any help

I have used IdeaSTM8 for 3+ years with great success ... but this morning my project wouldn't compile, appearing to indicate that all functions were undefined. The only anomaly I see is that the Fileview / Source Files list has turned all my .c files red. Removing and re-adding files doesn't help ... they remain red. I can still open all .c and .h files in the IdeaSTM8 editor with no issue. Any idea how to fix this? I suspect some settings or database file got corrupted, but I can't figure out how to correct it.

Good morning, everyone,given the dramatic situation on semiconductor availability and sourcing, I would like to know what the future holds for the STM8 family.Supply times at distributors are discouraging, to say the least, and the official ST website indicates nothing but "0 in stock."Okay, for new designs I could migrate to the STM32 family, but the problem is related to product already on the market whose production is suspended precisely because of shortages not only of other semiconductor components but also of STM8 micros.Is there any word on the current situation and any projection for the future?Thanks for any your response.Sisto Zanier

I'm using IAR 1.42.3 And I'm using Discovery kit with STM8S003K3 MCU.I try to use the debug of Discovery kit in IAR but don't work.When i use the ST Visual Develop using cosmic the debug works so good.

I can't seem to figure out what I've done wrong. Trying to do a single ADC conversion on the STM8L051F3 using pin PC4 but I'm just getting 0xFFFFD. Here's my ADC related code can anyone spot where I've gone wrong?void ADC_Init() { CLK_PCKENR2 |= 1; //Enable ADC CLK ADC1_CR1 |= 1; // Enable ADC ADC1_CR2 = 0x04; //Sampling time = 48 ADC clock cycles ADC1_SQR1 |= 0x80; // DMA off ADC1_SQR4 = 0x80; // Configure ADC channel 4 (PC4) }   uint16_t ADC_Read(void) { uint16_t adc_res; uint16_t value = 0; uint8_t cntr;   for (cntr = 0; cntr < 4; cntr++) { ADC1_CR1 |= 2; // Start ADC conversion, by software trigger while (!(ADC1_SR & 1)); // Wait for the conversion ends adc_res = (ADC1_DRH << 8); // Get ADC converted data adc_res |= ADC1_DRL; value += adc_res; if (cntr) value >>= 1; }   return value; }

STM8L001J3. I am trying to use stvd. Downloaded the archive "STM8L15x/16x/05x/AL3Lx/AL31x standard peripheral library" . But it doesn't have my microcontroller. In which archive can I find a project for it? Tell me where can I download it?

I never had a problem to debug my project but now I get these error messages. I didn't change anything. Also I can't change the content of the gdb.ini file. What should I do?

I'm curious if I can use an 8-pin STM8 breakout board to replace some 74LSXX series ICs, or in some cases, maybe a handful of them. I need to build a 7-seg LED display that outputs hex. I can order one, wait a week, pay $8 for shipping, hope it works as expected, etc., etc. But I'm looking for a better solution. I've been doing software for the past 30+ years and started an EE degree years ago and never finished it. I should have stuck with it but I went another direction and landed in software. The last couple of years I started getting back into electronics I am starting to do some hardware tinkering and building some retro PCs (6502, 8-bit computer, etc.) and keep runnning into little issues where I am missing an IC or a hard to find IC is overpriced and I want to just create what I need. Or in this case, take a 7-seg LED driver design and tweak it to output hex. One of the issues is that you need a clock if you want to use a single IC for more than on

I am having a communication problem with MAX485 ic. I am trying to change Ic receiving mode to transmit mode by using 'PB4' pin and i am using UART1 , SWIM pin as a Transmitter. in some controllers i am unable control pin in the middle working. I am giving both IC's supply is 5V.

Hi All,I am using stm8s001j3 controller, PA1 and PA3 are using as a UART communication by using Remapping. i am able to send the data but unable to receive data. UART configuration is   GPIO_DeInit(GPIOD);GPIO_Init(GPIOD, GPIO_PIN_6, GPIO_MODE_IN_PU_NO_IT);  GPIO_Init(GPIOA, GPIO_PIN_3,      GPIO_MODE_OUT_OD_HIZ_FAST); UART1_Init((uint32_t)9600, UART1_WORDLENGTH_8D,UART1_STOPBITS_1, UART1_PARITY_NO,          UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE); /* Enable the UART Receive interrupt: this interrupt is generated when the UART  receive data register is not empty */ UART1->BRR1 = 0x68;  UART1->CR2 = 0x2C; /* Enable UART */ UART1_Cmd(ENABLE);enableInterrupts();INTERRUPT_HAN

Program memory write stopped working for me. I tried with two STM8S005K6 chips. And everything works fine if I use some other STM8 chip. Getting below error when trying using STVP.Error : Programming failedError : Problem while trying to Reset swim and device. Apply a Power On ResetError : < PROGRAM MEMORY programming failed.And below error when trying through IAR compiler. Sun Apr 04, 2021 14:16:28: Failed to write chunk with size 1024 at address 0x8480: SWIM PROG error [42004]: Memory write error DATA MEMORY and OPTION BYTE write is working perfectly. PROGRAM MEMORY read is working but NOT WRITE.