STM8 MCUs

Posted on December 18, 2017 at 15:18I followed the below steps to execute the Sample code provided by ST. - For Cosmic Compiler:  1- Uncommented the ''#define RAM_EXECUTION  (1)'' line in the stm8s.h file,    2- In STVD Select Project\Settings\Linker\Category ''input'' and in the RAM section    add the FLASH_CODE segment with ''-ic'' options.

Posted on August 31, 2009 at 14:25Touch sensing library

Posted on December 14, 2017 at 13:10Hello, no block or place matches the pattern 'ro code section FLASH_CODE in stm8l15x_flash.o' error appered after adding  #pragma location = 'FLASH_CODE' before block programming function in IAR complier? Any helpThanks

Posted on December 07, 2017 at 12:41#error cpstm8 C:\Program Files\COSMIC\FSE_Compilers\CXSTM8\Hstm8\mods0.h:1 FlexLM No such feature exists.

Posted on October 23, 2017 at 10:53Occasionally we have need for a 6, 8, or 14-pin MCU.  For instance SOT23-6 or leadless devices to conserve board space.  Up until now, PIC10 and ATtiny have been the only choices, but it's good to have some other options.  The STM8L's 12-bit ADC, DAC, and 16-bit PWM would be particularly useful.  So can we expect to see a low pin-count STM8L sometime in the future?#low-power #future #stm8 #battery-life

Posted on December 04, 2017 at 07:55Can i have software programming tool for STM8/STM32 using ST-Link/v2 in linux tool

Posted on November 27, 2017 at 12:55Hello Everyone,I am working on the STM8AL3166 and try modify the SPI register. My simple code is as below :int main() {   SPI_CR1 |= 0b00100100;      /* Configure as master and 500 kHz com speed}As read in the datasheet, I made a library.h with the correct address ://STM8AL3166 SPI REGISTER#define SPI_CR1 *(unsigned char*) 0x5200       //SPI Control Register 1   But when I go in the debug session, the register does not change his value after executing the instructionIs someone has encountered this problem? When I do the same for GPIO port A for instance, I have no problem.May I am missing one configuration somewhere?Please help.Thank you for your time,David

Posted on December 08, 2017 at 11:26I cant connect to my EVALKITST8500-1 using Smartgrid LabTool V4.4.The power cable and the USB cable for kit interface are connected properly. When I connect the interface cable as per the the quick start guide, the LabTool does not recognize any port. If I go to settings - port: I can find no port to chooseIf I go to settings - COM port - Scan port: Again, nothing happens.In my windows device manager, I can see two new devices which don't have the appropriate driver, there are named: Enhanced COM port, and standard COM port. #evalkitst8500-1 #smartgrid-labtool

Posted on December 05, 2017 at 14:40I created one segment and using #pragma i store some values in that location.If my code size cross that memory area means, overlap error occurs.How can i overcome with this error?

Posted on September 20, 2016 at 11:54Hi,We are working on STM8S003f3 microcontroller. We have successfully configured Channel 3 of the microcontroller.When Tim1- Channel1 is configured in similar way, it does not produce PWM ouptput on the pin.We have also enabled Option byte -AFR0 for selecting alternative function in 'ST Visual develop tool'.Please refer code below for reference,&sharpinclude ''STM8S003k3.h''&sharpifndef BIT &sharpdefine BIT(n) (1 << (n)) &sharpendifvoid PWM_OC1_25_OC2_50_OC3_75(void) { TIM1_CR1&=~BIT(0); // Close TIM1TIM1_PSCRH = 0; TIM1_PSCRL = 0; // undividedTIM1_ARRH = 0; TIM1_ARRL = 99; TI

Posted on November 30, 2017 at 15:53I just uninstalled and newly installed the COSMIC stm8_32k compiler and applied for a new license, placed the newly received license in the License subfolder but I'm still getting the following error '#error cpstm8 C:\Program Files (x86)\COSMIC\CXSTM8_32K\Hstm8\modsl0.h:1 FlexLM No such feature exists.' I'm also not getting option to select the HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE during installation. Anybody any idea? 

Posted on December 01, 2017 at 11:36Hi,I nedd to execute an adc conversion in STM8S003. I read that te conversion time is about 2.3us, but I see that the time in my project is about 25us. Configuration of  CLK_Config(void){ /* Initialization of the clock */ /* Clock divider to HSI/1 */ CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);}Configuration of adcvoid ADC1_setup(void){ ADC1_DeInit(); ADC1_Init(ADC1_CONVERSIONMODE_SINGLE, ADC1_CHANNEL_1,//ADC1_CHANNEL_0, ADC1_PRESSEL_FCPU_D2, ADC1_EXTTRIG_GPIO, DISABLE, ADC1_ALIGN_RIGHT, ADC1_SCHMITTTRIG_CHANNEL1, DISABLE); ADC1_Cmd(ENABLE);}Clock oscillator is internal at 16MhzSomeone can tell me where are the errors?Thanks!

Posted on December 01, 2017 at 03:24I'm currently programming a bootloader for my project. I work on a STM8AF board and I have a problem with the write memory command.I follow each instruction in the UM0560 user manual. My problem appears at the end of the sequence, I never receive the last ACK or NACK.Example (I use the UART peripheral) :-I send my first byte 0x31 and 0xCE his complement. -The device answer with ACK (0x79).-I send the address 0x00 00 80 00 and the checksum 0x80.-The device answer with ACK.-I send the number of bytes, the data 0x01 0x53 and the checksum 0x52And here the device stop answering hereI check in ST Visual Programmer, the ROP byte is disable and the data is never written.Attached, my trace in Hercules and the sequence in UM0560 user manual.Thanks,Alexandre#stm8a #uart #bootloader #write-memory

Posted on November 13, 2017 at 17:44Hello Everyone,I am working on the STM8AL3166 and try to handle a timer interrupt. My need is to wait 500ms and then check again a value (not pooling)How/Where do I write the program when the interrupt occurs? Where can I find the header file?I did several hours of searching and can not find anything, Please Help !Thank,David#timer-interrupts #delay

Posted on November 28, 2017 at 12:14Hello,I know that there is the STM32CUBE IDE and the STM8SCUBE IDE. But is there a cube IDE where you can use all kinds of MCU?Ihave seen there is a STM32CubeMX Plugin for Eclipse, can I use this plugin in STM8Cube? Or is there also a STM8Cube Plugin so I can use a generic Eclipse and add those plugins?Thanks#ide #cube #stm8

Posted on November 28, 2017 at 10:01Hi.I have a problem using STM8S001J3.The program can not be downloaded because the SWIM pin is set to output.Is there a way to revert the settings?I am using STVD and IAR for program development.#stm8 #stm8s

Posted on November 28, 2017 at 09:58??STM8S001J3? ???? ? ??? ????.SWIM ?? ???? ???? ?? ??? ????? ???? ? ? ????.??? ??? ??? ????????? ??? ?? STVD? IAR? ???? ????. #stm8s001j3 #stm8

Posted on November 27, 2017 at 23:57Hi all, I am using currently STM8S003F3 for my work and I want to send an array of bytes to the HTERM on my PC using UART RS485. But I always miss the last byte in the array (I can't see the last byte in HTERM). Here is a shot code snippet:_UART_TX_ON; //switch to UART485 transmission mode for ( bn=0; bn<17; bn++) {    UART1->DR = bSPIRxBuf[bn]; //UART1_SendData8(bSPIRxBuf[bn]);    while ( (UART1->SR & 0x80) == 0x00); //while (UART1_GetFlagStatus(UART1_FLAG_TXE) == RESET); } _UART_RX_ON; //switch to UART485 reception modeThe array bSPIRxBuf[0-16] has already some predefined content. But in Hterm I can only observe 16 bytes, which means the last byte is always not received by HTERM. I don't know why and could not explain. I think that I have waited enough time for each transmit byte before switching to reception

Posted on August 02, 2017 at 15:45 Title Document: [STM8S001J3] Reference design for 8-pin STM8 The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on November 15, 2017 at 16:25The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on November 23, 2017 at 07:31HiI am using STM8S001J3controlleron my project and I'm have some problem about it,I want to use analog channel 2 on pin 7However, AFR2 is disabled in STPV.How do I fix it?#analog-input #stm8s

Posted on November 23, 2017 at 11:13I am using stvd and cosmic compiler for development of MCU STM8AF6246 .In file stm8s.h/* #define STM8S208 */ /*!< STM8S High density devices with CAN */ /* #define STM8S207 */ /*!< STM8S High density devices without CAN */ /* #define STM8S007 */ /*!< STM8S Value Line High density devices */ /* #define STM8AF52Ax */ /*!< STM8A High density devices with CAN */ /* #define STM8AF62Ax */ /*!< STM8A High density devices without CAN */ /* #define STM8S105 */ /*!< STM8S Medium density devices */ /* #define STM8S005 */ /*!< STM8S Value Line Medium density devices */ /* #define STM8AF626x */ /*!< STM8A Medium density devices */ /* #define STM8AF622x */ /*!< STM8A Low density devices */ /* #define STM8S103 */ /*!< STM8S Low density devices */ /* #define STM8S003 */ /*!< STM8S Value Line Low density devices

Posted on November 21, 2017 at 21:25i hav interfaced a lcd. after several on offs lcd becomes blank. after reprogram it works normaly. 

Posted on November 11, 2017 at 23:27 Are there optimized basic math functions available for the STM8 such as; 8 bit by 8 bit multiply and 8 bit by 16 bit multiply and similar? My application has a time critical 8 bit by 16 bit multiply. The Cosmic compiler seems to always default to a 16 bit by 16 bit multiply, which is slower.I wrote an inline assembly macro that runs in about 2/3 the time of the compiler's output; but it was very tedious to write. I would rather not do this for every math function. Any helpful information would be appreciated. I include my macro here, in case anyone else finds it useful: // macro to perform an optimized UI8 by UI16 multiply: uint16_t RESULT_UI16 = (uint8_t)X_UI8 * (uint16_t)Y_UI16; // Note: All arguments must be declared '@tiny' // macro assumes that no overflow occurs // '_asm()' will load an 8 bit ar

Posted on November 03, 2017 at 13:16I am using STM8L051F3 for my project. My project uses 10 LEDs, Timer2 and 1 input Pin. After getting input from 1 pin i will on the LEDs 1 by 1. System powered with battery so run time current should be minimum. Without using sleep, Halt how can i run the system at lowest power. Please guide me through this.