STM8 MCUs

The circuit works fine with 5v/9V adapter supply but when we connect with 9v Battery controller could not work as expected. I have assembled stm8s103f3p6 break out board with my circuit, which have below gpio connections! //Chip_Pin_No.  Pin Name   Connected with//  5..............................A1................................. //  6..............................A2................................. //  10............................A3.............LED//  11............................B5...............................     //  12............................B4.........Keyboard switch //  13............................C3.........Keyboard switch //  14............................C4.........Keyboard switch //  15............................C5.........Keyboard sw

Hi, ​I am developing with STM8S003F3.I want to store user-specific information somewhere in the flash and read only that area with ST-LINK.Is there such a way?Regards, Gotoda

I am trying to implement simple spi communication between 2 stm8s. Sending 0x04( address of pin2) and passing the received data as argument to GPIO high function so that LED connected at PORT D PIN 2 will glow. Master code is working properly, degugging properly, but in slave the TXE is not becoming 1 and program is stuck there only. Does any one can help locating the problem if its in code?Master code:#include “stm8s.h�?#include “stm8s_gpio.h�?#include “stm8s_spi.h�?#include “stm8s_clk.h�?void GPIO_setup(void);void clock_setup(void);void GPIO_setup(void){ GPIO_DeInit(GPIOC);GPIO_DeInit(GPIOB);GPIO_DeInit(GPIOD);GPIO_DeInit(GPIOA);// led pinGPIO_Init(GPIOA, GPIO_PIN_3,GPIO_MODE_OUT_PP_HIGH_FAST);//NSSGPIO_Init(GPIOC,GPIO_PIN_5, GPIO_MODE_OUT_PP_HIGH_FAST );//sck pin 5GPIO_Init(GPIOC, GPIO_PIN_6, GPIO_MODE_OUT_PP_HIGH_FAST);//mosi pin 6GPIO_Init(GPIOC, GPIO_PIN_7, GP

Hi :) I am actually interested particularly in the STM8L151 series, but as I understood this is a global problem for all ST MCUs (and even from other companies - but the ST stocks seems particularly bad).I designed my product expecting to buy STM8L151G6U6 at 70 cents a unit, and now I have to pay $12 for it. What worries me more is that I will not go into production before a few months, and the price will probably rise even more until then.Any ideas/predictions about when the prices and stock can go back to normal?Thank you!Simon

Hello Community,I am new to STM8. I have used STM32 Cube IDE. I want to check the code size of the GPIO example for STM8L101F3U6ATR MCU.I can not find example codes in STM32 cube mx.Can anyone please tell me the approx size of GPIO example.Thanks,Hiren Bhuva

I want to try asm code in STVD for STM8S001J3, could anyone here give me an example?

I am working with an STM8L001J3 and the application needs to go from power up to triggering a GPIO Port B Pin 3 as soon as possible. As this will be the only GPIO used, does anything further need to be done to ensure SWIM function remains accessible and not brick the MCU? This application is not conducive to a 5s startup delay as recommended in the application note, however, I dont need that pin for anything else.

Hi All,We have STM8S207C8T6 parts with different COO and some have MSL listed as 2 on the manufacturing label and the others have 3 as MSL. Please advise which MSL is the correct one or they are both correct? Thank you.

STM8S105K6T6C

I code in STVD + COSMIC for STM8S001J3, it was prompted:----------- Project test_stm8s001j3 - STM8 Cosmic - Configuration Debug -------------   Compiling main.c... cxstm8 -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc +debug -pxp -no -l +mods0 -pp -iF:\CXSTM8\Hstm8 -clDebug\ -coDebug\ main.c #error cpstm8 main.c:32(22) missing prototype #error cpstm8 main.c:38(22) missing prototype main.c: The command: "cxstm8 -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc +debug -pxp -no -l +mods0 -pp -iF:\CXSTM8\Hstm8 -clDebug\ -coDebug\ main.c " has failed, the returned value is: 1 exit code=1.   main.o - 3 error(s), 0 warning(s)I used SPL of STM8, and I tailored .h and .c file into the project, since if not this, there would be errors in compiling, now I met these error prompt - "delay_ms(1

Hi,for a product I want to activate read-out-protection (ROP) via option byte, to prevent misuse via the SWIM interface. However, is it possible to disable it again from the application (given a "secret" condition)? Page 50 in RM0016 indicates that ALL option bytes are read-only when ROP is active... :( But there is a note in the revision history on page 459: "Moved all information related to temporary memory unprotection to dedicated application note". Unfortunately I cannot find this application note. Does anyone have inf

I have a haptic button where the vibration has been set as soon as the pwm is genereated, I want to increase the vibration by changing the amplitude of the sine wave generated from the pwm, Can I know how can I do that??

I used COSMIC in STVP for stm8s001j3, when I built, it shown:----------- Project test_stm8s001j3 - STM8 Cosmic - Configuration Debug -------------   Compiling f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c... cxstm8 -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver -if:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc +debug -pxp -no -l +mods0 -pp -iF:\CXSTM8\Hstm8 -clDebug\ -coDebug\ f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c #error cpstm8 f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c:56(8+3) bad struct/union operand #error cpstm8 f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c:57(8+3) bad struct/union operand #error cpstm8 f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\src\stm8s_adc2.c:58(8+3) bad struct/union operand ...   #error cpstm8 f:\stm8\stm8s_stdperiph_lib\libraries\stm8s_stdperiph

My question is: What is the address of the device id register?

Hi Team, In STM8AL3189, in my application, I need to flash the program memory in extended addressing mode (0x10100 to 0x17fff) range, but facing issue normal division is not workingi have done experiment, if i make program memory range around 0xff00 to 0x17fff then it is working , but for above mentioned are program memory range (0x10100 to 0x17fff) the same code is not working . please fine the attached both the code .kindly help us to resolve this problem soon , we in urgency pls reply back ASAP.Thanks in Advance ,Anand Kumar NS

Hello, I'm writing some timer code for the STM8S003F3P6. I am using SDCC to compile it and stm8flash to flash it on to the device with a third part ST-Link V2. I am having an issue that when I flash the device with my code it doesn't run and I can no longer write to the device. I can still read the flash memory and write to non-program memory but I seem unable to reprogram the device and I'm not sure why. This has also been hard to debug due to having limited numbers of ICs and it hard to buy more of them atm. Below is the code I am running. It only crashes when I add timer_setcompare(adc_read()); to the main loop. adc_read() works when on its own and just returns a 16 bit value. timer_setcompare() seems to work during the init. Does anyone have any idea why this would be bricking my devices? ---- Main.c ---- #include "adc.h" #include "debugPort.h" #include "stm8s.h" #include "timer.h"   #define wfi()

In the STM8L SDK, the RTC_WakeUpCmd()  function can return an ERROR if the WUTWF bit fails to be set after a delay.  In the RM there's no mention of how and why this situation would occur.Why RTC_WakeUpCmd can fail?Thanks,Gabriel

I would like to protect my firmware and my microcontroller in the case of a user want to extract the hex file or if the user want to overwire my firmware. For the first case, I saw I must play with 2 registers before to compile and program my code. How can I play on it? With a bootloader? At the start of my code? I need to write this code in a specific area in the memory?For test it, I'm using a STM8AF5288 MCU.Thanks for your help

Hi.i'm try using USART1 and recieve bytes with DMA from SBUS transmitter.. But have strange problem - i'm recive only once and later DMA IRQ TC2 never occure. I'm try many variants - all not help me(((Here my some code - #define USART_DMA_CHANNEL_RX DMA1_Channel2 #define USART_DMA_CHANNEL_TX DMA1_Channel1 #define USART_DMA_FLAG_TCRX (uint16_t)DMA1_FLAG_TC2 #define USART_DMA_FLAG_TCTX (uint16_t)DMA1_FLAG_TC1 #define USART_DR_ADDRESS (uint16_t)0x5231 /* USART1 Data register Address */ #define USART_TX_BUF_ADDR (uint32_t)(&dma_pack)   uint8_t dma_pack[40];   static void USART_Config( void ) { CLK_PeripheralClockConfig( CLK_Peripheral_USART1, ENABLE );   SYSCFG_REMAPPinConfig( REMAP_Pin_USART1TxRxPortA, ENABLE );   GPIO_ExternalPullUpConfig( GPIOA, GPIO_Pin_3, ENABLE ); GPIO_ExternalPullUpConfig( GPIOA, GPIO_Pin_2, ENABLE );   USART_Init( USART1, ( uint32_t )100000, USART_WordLength_9b, USART_StopBits_2, USART

I have development board of STM8L152R8. I want process like after uart interrupt comes controller should exit from halt mode . and after completing the routine it goes in halt mode again. I didn't find example regarding this subject.please help me to find the solutionthanks and regardsDeoyani

The problem is that the controller of stm8S208C8T6 doesn't work after it has been used on the vehicle for a period of time, and the controller function is invalid. Once in the past, the controller can work normally after re burning the program, but this time there is another such problem. Now we need to analyze whether the chip failure is a configuration change or a program damage, but because the chip has read protection, we can't read any information, Need your help to analyze or unlock the chip without damaging the chip, read out the information in the chip for analysis, so as to avoid problems in the future.

I want to develop an STM8 device using STVD + Cosmic Compiler.Compiler was installed with the license received by Cosmic, and the license was copied to the License folder in the Cosmic Compiler installation path (C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\License).When creating the STVD project, the Compile Tool (STM8 Cosmic) and path were set as follows.Toolchain-STM8 CosmicToolchan root-C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8It doesn't seem to be a problem in the setting part, but if you compile after creating the project, the following error occurs.Compiling main.c...cxstm8 +mods0 +debug -pxp -no -pp -l -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8" -clDebug\ -coDebug\ main.c#error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8\mods0.h:1 FlexLM No such feature exists.main.c: The command: "cxstm8 +mods0 +debug -pxp -no -pp

Hi Team,I am using the STM8AL3189 controller, created 2 images where,1st image will flash with 0x8100 to 0xffff and 2nd flashing of the image will flash on 0x10000 to 0x17fff (address above 0xFFFF )we have changed the linker file with the startup file as crtsi.s and libisl.sm8libm.sm8 libraries. And changed to s19 in S2 format (24 bit addressing) chex -f2 (option)both the images are not working in this case, but if both the images are within 0x8100 to 0xFFFF, both the images are working.to check the memory restriction , I have created a project in STVD and mapped the address to 0x10000 and configured it for simulation mode to check but it shows error message "stopped at write protection at 0xFFFF) can you please help me out . whats the mistake and I have attached the project and image for your reference Thanks,Anand Kumar

Hello,I am trying to generate a PWM signal on pin PC5 using TIM2_CH1 , but no success. But I am able to generate PWM on pin PD0 using TIM3_CH2.Normally the procedure is quite simple :for TIM2_CH1 - pin PC5 TIM2_OC1Init(TIM2_OCMode_PWM1,  TIM2_OutputState_Enable,   DutyCycleValue,   TIM2_OCPolarity_High,  TIM2_OCIdleState_Reset); TIM2_OC1PreloadConfig(ENABLE); TIM2_ARRPreloadConfig(ENABLE); TIM2_CtrlPWMOutputs(ENABLE); TIM2_Cmd(ENABLE);But I see no PWM on pin PC5. After searching in the RM0031 Reference manual I found this :11.5.3 SYSCFG remap control register 3 (SYSCFG_RMPCR3)

I have a chip with 8 pins, but I could find the start sign for pins order, should I start from left-bottom or left-upward corner?