STM8 MCUs

Hi there.I´m using a STM8S207 with cosmic compiler.I am reading and writing a 24L64 eeprom thru i2C and everthis is working well.But i want to put protection in the routines to avoid lock the program in case of fail of a write or read command.i found a text with this information: @note      For error management, it is advised to use the following functions:      - I2C_ITConfig() to configure and enable the error interrupts (I2C_IT_ERR).      - I2Cx_ER_IRQHandler() which is called when the error interrupt occurs.       Where x is the peripheral instance (I2C1, I2C2 ...)      - I2C_GetFlagStatus() or I2C_GetITStatus() to be called into the        I2Cx_ER_IRQHandler() functi

Hello, I am studying the STM8S208RB MCU and the SPL. I am using STVD and COSMIC, and the Nucleo-8S208RB board for testing. The below code should configure port GPIOC Pin5 and set it to high and stay high. However, LED2 turns on for only a short moment, not permanently. The STM8 Nucleo-64 board has the User LED2 on GPIO Port C, Pin 5.What is wrong with the code? Thank you!/* Configure the LED2 GPIO */ /* Reset the GPIO Pin in CR2 register */ LED2_GPIO_PORT->CR2 &= (uint8_t)(~(LED2_GPIO_PIN));   /* Output mode selection */ LED2_GPIO_PORT->ODR |= (uint8_t)LED2_GPIO_PIN; /* High level output */ LED2_GPIO_PORT->DDR |= (uint8_t)LED2_GPIO_PIN; /* Output mode */ LED2_GPIO_PORT->CR1 |= (uint8_t)LED2_GPIO_PIN; /* Push-Pull output mode */ LED2_GPIO_PORT->CR2 |= (uint8_t)LED2_GPIO_PIN; /* 10 MHz fast output */   /* Turn On LED2 */ LED2_GPIO_PORT->ODR |= (uint8_t)LED2_GPIO_PIN;

The STM8 Standard Peripheral Library does not include example config files (header files) for STM8 Nucleo boards. Are headers for the Nucleo-S208RB available online? I though I ask before creating one... Thanks!

Hello everyoneI am to use the Timer3 of STM8s105C6T in order to measure the duty cycle of a specific signal.But I also want the MCU to reset if this signal is disconnected.I am using PWMI feature of this timer meaning that rising edge and falling edge are detected respectively Is there any way to find out that this signal is disconnected? How?Thanks!

Hey!Could you please tell me how to have access to older versions of STM8s std peripheral libraries?Apparently, it's no longer available on st.com Thanks a lot!

Can the device STM8AF6226TCY be replaced by the STM8AF6226TCSSSY? Are they the same product? My customer wanted STM8AF6226TCY, but what we found was STM8AF6226TCSSSY. 

I am new to STM MCU and have started working with stm8s105k4. I have a 4 bit digital input and wants to know how can I read that 4 bit at once which is connected to PORTC.Below logic is very lengthy and not a good way to read inputs. Kindly help.if ((!GPIO_ReadInputPin(GPIOC, GPIO_PIN_3)) && (GPIO_ReadInputPin(GPIOC, GPIO_PIN_4)) && (GPIO_ReadInputPin(GPIOC, GPIO_PIN_5)) && (!GPIO_ReadInputPin(GPIOC, GPIO_PIN_6)))

              Segments                --------start 00008080 end 0000811e length 158 segment .conststart 00008151 end 0000989f length 5966 segment .textstart 00004000 end 00004000 length  0 segment .eepromstart 00000000 end 0000002b length  43 segment .bsct, initializedstart 00008126 end 00008151 length  43 segment .bsct, fromstart 0000002b end 00000068 length  61 segment .ubsctstart 00000068 end 00000068 length  0 segment .bitstart 00000068 end 00000068 length  0 segment .sharestart 00000100 end 00000100 length  0 segment .datastart 00000100 end 00000100 length  0 segment .bssstart 00000000 end 00000908 length 2312 segment .info.start 00000000 e

I am using an microcontroller to work as a flash programmer (let's call it My-Programmer) for the STM8L151K6U6 over USART.Basically, the My-Programmer sends the following (in normal text), and receives from STM8 (in bold):0x7F0x790x310xCE0x790x000x000x800x000x800x1FI also tried to invert the address endianess, just to make sure I was not doing something wrong, and still, the same behavior is seen.

Hi there!I wanna use the Timer3 of STM8S105C6 to calculate the duty cycle of a 500Hz signal.It's not possible to use any other timer due to hardware limitations.ADC1,Timer1, and Timer2 are also used in my code and their interrupts of course.They work at least at 10Khz.Here is my problem, whenever I increase the current of the power supply to the hardware, from one point on, the power supply's current limiter begins to connect and disconnect itself continuously. What's wrong? The hardware works properly. I'm pretty sure about thatDo the interrupts influence on each other?How can I prevent them from influencing on each other? Is it even possible?Should I use RTOS method of programming?any help would be appreciated.

I have used the wait feature before. I treat it just as if there is no wait. I have "while(true) wait;" in my main.c. (I only use interrupts, the code is pure interrupt-driven). I need to use halt now. Can I use halt the same way? Will the interrupts continue the same and will peripherals continue the same except for the clock interruption?

Hi STM8 Team,I am trying to do In-Application Programming on STM8AF5288T MCU which is a 64K Flash device. The available E_W_RAM_ROUTINEs are for 32K and 128K flash. Does the 128K version work on STM8AF5288T?Also which version of BSL should I use? Thanks,Hrithik

I wonder why some developers choose non-free compilers (IAR, Cosmic, Raisonance, etc) instead of the Small Device C Compiler (SDCC) when targeting the STM8.

Hi every one,I have bought Stm8 Discovery board which has touch button onboard. After that I have download STM Touch Sensing Library, and some arrangements done at ST visual Develop IDE, directly build main c file and have been uploaded by using STVP to discovery... wola , button running. Actually I have kind of circuit that has external coper pad with directly soldered to it's pcb as dip type with some gap. When I closely look on the ic there are no information about it because manufacturer delete on it. And when i check its pins I have realize that it is totally same as STM8S103. The board has HT7533-1 regulator and S8050 NPN and with some other component. I have tried to read what it contains with STVP however I have always warn the program me with "please check swim connection , my be SWIM dissable with program so please force NRST pin to low" that kind of thing. I cannot pass it. Let me some more information about it. the swim pin control red led. 20K and 4

Hi STM Team,I am trying to flash STM8AF5288T from iMX8MM using stm8gal tool using SPI interface. I successfully cross compiled the stm8gal for Android and run it in the device. It is giving following error:It seems like issue with bootloader. Kindly help me in debugging and rectifying this issue.Thanks,Hrithik

Hi STM8 Team,We are using STM8AF5288T which controls a LIN slave connected to it.Our requirement is to check if the LIN bus is inactive. I am not able to find any registers/flags which can show status of LIN bus.Could you please help here.Thanks,Hrithik

Hello,I am trying to program a STM8S103F3 on one of these chinese breakout boards with an original ST-LINK/V2 programmer. Everytime I try to read/ write something I get:"Error : Cannot communicate with the device !Check the SWIM cable connection and check all the needed pin connections on the SWIM connector.If the application code uses Swim Disable and Reset pin as Output or has disabled SWIM Clock Divider:Try Now to SWITCH OFF and ON the application Power Supply while NRST Reset pin is forced low.Error : < PROGRAM MEMORY reading failed."I doesnt matter if its program memory, data memory or option byte.I am pretty shure I connected it right, I also tried every possible combination until now. I also tried connecting VCC and GND directly to the board, because the SWIM connector had no proper ground connection. It is already the second one of these boards I am trying, as I thought the f

Hi STM8 Team,We have to flash STM8AF5288T MCU via SPI protocol from iMX8M Mini running on Android 11 OS.I have read the AN2659 document to study about IAP and understand the custom bootloader code.I have few queries after reading it which are as follows:How to write the .s19 file content from iMX8M to STM8AF? Could you please provide some documentation for this?Does STVD generate a .bin format ?Kindly help us with the queries as we are not able to proceed further.Thanks,Hrithik

Hi STM8 Team,I can see STVD generates .s19 , .sm8 files. I want to generate .bin file. I had tried it by adding the following line in Post-Build section:chex -o $(OutputPath)$(TargetSName).binBut this did not work. Could you please guide me on how to generate .bin in STVD?Thanks,Hrithik

Hi there!I put this struct in the header file of my code, i´m using Cosmic C compiler and STM8S207 microcontroller:typedef struct{ bool a0:1; //flutuação bool a1:1; //equalização bool a2:1; //automático bool a3:1; //fuga terra + bool a4:1; //fuga terra - bool a5:1; //sobretemperatura interna bool a6:1; //sobretemperatura externa bool a7:1; //disjuntor aberto bool a8:1; //ca anormal bool a9:1; //bateria baixa bool a10:1;//bateria alta bool a11:1;//consumidor baixo bool a12:1;//consumidor alto bool a13:1;//sobrecarga bool a14:1;//bateria em descarga bool a15:1;//desconexão bateria}strAlarme;strAlarme alarmes0;But when i compile, i receive this message: #error cpstm8 declaracoes.h:36(1+9) redeclared typedef strAlarmeWhat am i doing wrong?SincerellyMarcelo

hello sircan someone, help me with that "SUB SP,#$9 " ,with is mentioned in the LATEST PROGRAMMING MANUAL OF STM8S PAGE 151.if you write that in an even very 1line program, you have an errorCan't match Addressing mode ' SUB SP,#$9'is there a n error of me, or is the manual example not correct thanks for the help

hello sira very simple asembler program ,with a big problemits in ST visual develop , with the inside st assemblerthat simple program ldw X,#stack_end ldw SP,X PUSH $C SUB SP,#$02gives that error  Error 54: Can't match Addressing mode ' SUB SP,#$02'how can that besolved?and please no answer as learn c.many thanks

From the drawing of DocID28549, PIN22 of the evaluation board (STEVAL-ISA164V1) is described as UART_Tx and PIN23 is described as UART_Rx, but if you search for UART in the attached source file, PIN17 and PIN18 will be searched.Which part of the attached source file makes it possible to communicate with ST_SMED_Configurator?I hope you'll tell me.