STM8 MCUs

Hello Respective,I am trying to flash STM8l052C6 using st link and stvd. But I am not able to flash it. Previously same controller same st link and same IDE was there I was able flash. but suddenly it stopped flashing.When trying to flash in new fresh controller it works fine so st link and wiring looks ok.I am attaching the error for reference

Hello Respective,I am trying to measure the input voltage in STM8l052C6 controller but I am unable to do the same. I tried in STM8l152C6 in STMl discovery board and it's working fine there but not in STM8l052C6.I analysed one thing by my self is address for VREFINT_Factory_CONV is given in datasheet of STM8l152C6 but not in datasheet of STM8l052C6.

Hello Respective,I am using STM8l discovery board and trying to put my controller in Sleep(HALT) for some time and waking up again when any external interrupt comes.Previously the code was working fine, but now it's not working as expected.I am using stvd IDE and Cosmic compiler, using _asm("halt"); instruction to switch to halt mode. But this is not working every time, controller is neither going to sleep nor it's continuing the execution.I tried to execute the halt instruction after clearing all the interrupt pending bit and clearing the following bits:SWBSY flag in the CLK_SWCR register EEBUSY flag in the CLK_REGCSR register RTCSWBSY flag in the CLK_CRTCR register BEEPSWBSY flag in the CLK_CBEEPR register when the Beep is enabled in Activehalt mode.

Hi guys,I want to write data to the flash memory of the Stm8s003f3p6 processor. I can read / write to this processor's eeprom. But I can read the flash memory, but I can't write it. I write my codes with "IAR Embedded Workbench for STM8". I check the address I wrote in Debug mode, but I see that no data is written. I guess there's no way I haven't tried. Here are the codes I wrote:FLASH_PUKR = 0x56; FLASH_PUKR = 0xAE; while (!(FLASH_IAPSR & (1 << FLASH_IAPSR_PUL))){}   FLASH_CR2 = 1 << FLASH_CR2_PRG; FLASH_NCR2 = (uint8_t) ~(1 << FLASH_NCR2_NPRG); pct = *(uint32_t *)(0x8000); (*(uint8_t*)(0x9000)) = 0x21; MSA_Delay(20);

Hi, I am a newbie in writing code on MCU's.I am using STM8S003K3 with which several fan controllers are attached on different GPIO. I need to count PWM pulse whenever it comes on any port and then identify the pin no of that port. How to count pulse using ext interrupts on falling edge??? ThanksRitu.

HOW to code this table?void LCD_GLASS_Init(void) { /* The LCD is configured as follow: - clock source = LSE (32.768 KHz) - Voltage source = Internal - Prescaler = 2 - Divider = 18 (16 + 2) - Mode = 1/8 Duty, 1/4 Bias - LCD frequency = (clock source * Duty) / (Prescaler * Divider) = 114 Hz ==> Frame frequency = 28,5 Hz*/   CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE); /* Enable LCD clock */ CLK_PeripheralClockConfig(CLK_Peripheral_LCD, ENABLE); CLK_RTCClockConfig(CLK_RTCCLKSource_LSE, CLK_RTCCLKDiv_1);   /* Initialize the LCD */ LCD_Init(LCD_Prescaler_4, LCD_Divider_16, LCD_Duty_1_4, LCD_Bias_1_3, LCD_VoltageSource_Internal);   /* Mask register*/ LCD_PortMaskConfig(LCD_Por

Hi,I am testing an application, and currently is working properly with HSI configured to 16MHz.Now I want to enable the HSE.I am using a NUCLEO-8S208RB. I have soldered an external crystal on X2, and i have configured the board with 12pF capacitors and 0 ohms resistor.The crystal has a resonance frequency of 24 MHz. Configuring the firmware in order to output the clock frequency from pin 57 of STM8S (CLK_CCO), everything seems working (i can see the 24MHz synusoid with the oscilloscope).Unfortunately the microcontroller is not working, because the application doesn't run.I have configured the HSE clock in this way:CLK_SYSCLKConfig(CLK_PRESCALER_CPUDIV1);CLK_SYSCLKConfig(CLK_PRESCALER_HSIDIV1);  /* Output Fcpu on CLK_CCO pin */CLK_CCOConfig(CLK_OUTPUT_CPU);/*Enable external oscillator*/CLK_ClockSwitchConfig(CLK_SWITCHMODE_AUTO, CLK_SOURCE_HSE, DISABLE, CLK_

I wish to use STVD to set up a new workspace on a mapped common drive but it whereas I can see and go to a mapped drive with the Atmel IDE etc the STVD IDE doesnt appear to recognise it. Is this a known limitation or something I am doing wrong?

Hello everyone.I'm fresher,I start learning ARM recently,I need connection two STM8L152C6 discovery with I2C protocol.I try hard but I'm fail.I hope someone can help I do it.Thank you so much.

I set up a project that generates the makefiles for the STM8 target. It almost works, just the interrupt vector table is not updated with the definitions in the code.The interrupts are set up and work. I can see that from the button press on the discovery board, which causes a reset due to a missing interrupt vector (executing abort() instead).The map-file also does not show the functions called by the interrupt request handler being linked.In the makefiles I can find that the linker is called with the interrupt definition file in the list of files to link.What am I missing?Thanks in advance.

For the mass production i am want gang programmer or I need to program through UART without any bootl-oader firmware.

I work on a project inside eclipse IAR EW plugin. Now I would like to debug from there, too. Just like for STM32. Is that possible? If so, how?Thanks

here is the code https://gist.github.com/goog/222020c4d46e751f591559f3f3ff06e0BUT the PD0 does not output clockI'm new to stm8 and reference STM8S_StdPeriph_Lib example

I have a big problem when using USART on STM8L-DISCOVERY. I studied the reference manual but it didn’t help me. I use library SPI. Could you send me a project working with usart on STM8L-DISCOVERY please!!!! NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

Hi there,I want to expand array size until 3000. (i.e. arr[3000]). I have 4KB RAM.currently I can get value till arr[1500].I tried different options to expand size but no success. Please see below image.How to expand array size? Thanks ,Gopal

I am currently using STM8S003 and use to option byteDuring normal use, sometimes the program suddenly disappears.Then when re-burn, it will fail and the following message will show:Errors while setting configuration with MCU name STM8S103F3P: gdi-error [40701]: Option bytes read errorI don't know if it is a problem with the MCU itself or with my circuit?(Vcc = 3V / with internal oscillator)

Hey guys.I need to watch my variables online.On stm32 there was stm studio which I could watch them.I use IAR as my compiler but for watching a variable I have to pause the debugger to see its value.Whats your offer?

Will the external 1k resistor of the nrst pin have an effect?

Unable to configure ST visual on window 10. I am getting following problem during configuration. MCU selection is not available, please help.

Hi All,We use stm8s005k6t6c IC in one of the circuits. We programmed the IC using IAR embedded workbench IDE. We attached the circuit diagram herewith for your reference. But we couldn't get any success of programming it since we receive an error saying "Chip doesn't respond". It would be great if you could check our circuit design and guide us to resolve this issue.Thank you.

I have initialized the uart1,but the code can't enter into function for theINTERRUPT_HANDLER(USART1_RX_TIM5_CC_IRQHandler,28)

Hi there,I am developing code for STM8L1528 EVAL board. My goal is to configure adc with dma(peripheral to memory) where adc should collect data for certain period, for example, 2 seconds.So I configured adc and dma according to examples codes given. but I added TIM4 to stop ADC conversion after 1 seconds. My code stucks in TIM4 ISR. Is there anything I am forgetting?Also, I configured ADC with 12 bit, fast channel 24, 4 cycles. But I am getting less sampling rate. Why is this happening? Thanks for the great help.Below are my code snippets:static void CLK_Config(void){ /* Select HSE as system clock source */ CLK_SYSCLKSourceSwitchCmd(ENABLE); CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSE); /*High speed external clock prescaler: 1*/ CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1); while (CLK_GetSYSCLKSource() != CLK_SYSCLKSource_HSE) {} /*

I configure the portB 4,5,6,7 as external interrupt pins. the program is working well if any interrupt occurs in portb 4,5,6,7 the execution send to irq. how to find which pin irq is occured in portbplease give the solution to my problem

Hello.I'm trying to set Option bytes on STM8s005k6 from main code, but still I'm getting error in complementary bytes (when I try to rad out it back in STVP) and MCU hangs.I'm using SDCC compiler with this code: // Set option bytes because of buzzer if(OPT->OPT2 != 0x80 || OPT->OPT3 != 0x08){ FLASH->CR2 |= FLASH_CR2_OPT; //unlock option bytes for writing FLASH->NCR2 &= (uint8_t)(~FLASH_NCR2_NOPT); while (!(FLASH->IAPSR & FLASH_IAPSR_DUL));   OPT->OPT2 = 0x80; // enable LSI clock source OPT->NOPT2 = 0x7f; OPT->OPT3 = 0x08; // set PD4 as alternative buzzer output OPT->NOPT3 = 0xf7; while (!(FLASH->IAPSR & FLASH_IAPSR_EOP)); // wait for write finish   FLASH->CR2 &= (uint8_t)(~FLASH_CR2_OPT); //lock back FLASH->NCR2 |= FLASH_NCR2_NOPT; }If I set it through graphic STVP and read OPT2 and OPT3 registers, they have exactly these values. But from code it