STM8 MCUs

Posted on April 14, 2016 at 09:32HelloI have been reading a document called Getting Started with the STM8 and they mentioned the ''STM8 firmware library''However I have spent a lot of time (really too much) trying to find this library. Searches inside ST homepage and googles outside proves fruitlessSo I ask directly here. Can someone tell me pleasewhere can I find the STM8 firmware library??Thanks a lot

Posted on April 05, 2016 at 12:15I have a workspace containing several projects; one of those projects has several building configurations. Randomly, the STVD switches the settings between the varoius configurations in this project, this way I am never sure what configuration I am building. This is a huge problem, any thoughts or solutions? PS Running on win7 #stvd

Posted on April 09, 2016 at 18:07Hello,it frustrates me that i don't find the information i need to read an analog value from a temperature sensor. I only have the overall documentation file, which's ADC-part is 1/4 page, and a documentation dedicated to ADC, but even this file only tells me what each register does but it doesn't tell me WHAT i have to write into these registers to do smth. Please help! Atmel did its homework and wrote everything clearly and structured in one single document (at least with the AVRs) so that even beginners. like me, understand what they have to do.

Posted on April 05, 2016 at 15:26First i'm sorry for my bad in englishi have 2 problem for STVD+COSMIC/**------------------- first question -------------------- **/#include ''stm8s103k.h''int main(void){ CLK_CKDIVR = 0; // prescaler system clock = 1 while( (CLK_ICKR & 2)==0 ); // wait HSI ready TIM1_ARR = 1600 - 1; // auto reload 100 usec TIM1_CR1 = 1; // enable timer_1 PB_DDR |= 1<<3; // o/p.. pin_B3 PB_CR1 |= 1<<3; // push_pull while (1){ if( TIM1_SR1 & 1 ){ TIM1_SR1 &= ~1; PB_ODR   ^= 1<<3; } }}This code.. TIM1_CNTR can not over flow by TIM1_ARR's value (1599)TIM1 counting to 0xFFFF and over f

Posted on March 30, 2016 at 20:41Hi there,I'm getting an ''Access to C:\Program Files (x86)\STMicroelectronics\st_toolset\stvd\default.wed was denied'' error when I try loading an STM8 project through the ST Visual Develop IDE. Has anyone seen this error before?Thanks for your help!

Posted on April 04, 2016 at 10:53hello all,I am new to stm microcontroller. i want to develop a frequency meter with stm8l101 microcontroller by using internal timer.please help me.ragadsramesh

Posted on April 04, 2016 at 09:08i am using STM8S005K6 and generating the PWM in TIM1_CH4. if  I am using DEFAULT ALTERNATE FUNCTION then PWM generates on PC4 but if i am using  ALTERNATE FUNCTION AFTER REMAPING then PWM is generating on both PC4 and PD7 . why????  please help me.  thanks in advance #stm8s005

Posted on March 17, 2016 at 16:31I am a software engineer, but I have been working with various development boards as a hobbyist. My latest purchase was a minimum STM8 board off ebay (http://r.ebay.com/YaYe2P) so I could start learning that platform. It comes with a micro USB port. However, the posts I'm seeing show you need a separate programmer (ST-Link) to program it (SWIM). I'd appreciate some insight on how you get up and running programming one of these on Windows. 1. I've got COSMOS and STVP setup on my system. Anything else needed? 2. Do I need

Posted on March 30, 2016 at 18:21 Hello forum, i am trying to get a standard linking led program running on my STM8S103F3P6 development board but i am not sure what i am doing wrong. I connected a LED to PIN D3, this is my code: #include <stm8s.h> void delay_ms(uint16_t ms); void delay_ms(uint16_t ms){ while (ms--){ uint16_t i; for (i = 0; i < ms; i++){ nop(); } } } main() { GPIOD->DDR|=0x03; //PD3 as Output GPIOD->CR1|=0x03; //PD3 as Push Pull while (1){ GPIOD->ODR|=(1<<3); //turn PD3 on delay_ms(1000); GPIOD->ODR&=~(1<<3); //turn PD3 off delay_ms(1000); } } #stm8 #gpio

Posted on March 29, 2016 at 11:46Hello ST/Forum, I have updated SDCC with some patches that allows it to create ELF files that are loadable in ST Visual Develop. The only thing missing is for GDB7 (internal GDB used in Visual Develop) to recognize the SDCC ELF files that have the ''DW_AT_producer'' field set to ''SDCC''. Could it be requested that Visual Develop be updated to recognize this? Currently you need to hack SDCC to expose another vendor for it to work, which of course is not usable going forward. You can test the new support in the latest SDCC nigthly build. Just build with ''--out-fmt-elf'' and ''-g''. Apart from that most things work. The only thing that does not work is source debugging. The reason is that the ''line_info'' support in SDCC is not complete yet. But everything else, breakpoints, asm debugging, watches etc. works fine. Thanks,

Posted on March 23, 2016 at 20:12Hi, I am new to using STM8.I just bought an evaluation board. I am hoping if there are example codes out there for setting up GPIO and ADC.Let's say I want to read the potentiometer value using the ADC

Posted on March 18, 2016 at 19:25Hi, I am looking for a compiler that is free to use and it compatible with the STLINK. I am using the STM8S003F3.I read somewhere that Comic may be compatible. Any other suggestions will be awesome.

Posted on March 16, 2016 at 08:33 Unable to clear I2C BUSY bit in STM8S-discovery Hello Friends,  I have working experience of stm32f0xx microcontroller. But in case of stm8s003xx discovery board, I am stuck with a deadlock and am not able to move even a bit. The BUSY bit in I2C.SR3 is always set it is not getting freed, according to datasheet it can be set only Hardware, it is also listed in errata list to be solved in future versions. it is completely undeterministic. Please help my way out #i2c1-busy #stm8 #!i2c

Posted on March 15, 2016 at 12:43Hello!Have anybody any information on bootloader interface configuration for I couldn't find direct instructions on port connections. I assume they should be PC2 and PC3 pins (due to SYSCFG->RMPCR1 default value) but there is some problem: STM8LF151F3 in UFQFPN20 package have no these pins. #stm8l151f3 #bootloader

Posted on March 12, 2016 at 09:54The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on March 08, 2016 at 09:26Hello,I've tried to measure the offset of the DAC of the STM8L152C6 board. When the output buffer is disabled, I measured the dac output voltage on PF0 - 200 mV, which is what I should get according to the documentation. When I enabled the output buffer (cleared BOFF bit), I measured the offset to be 70 mV. I though it couldn't be that high, so I made the same measurements by using STM's wave generator, but results were the same. Shouldn't it be less than 70mV? Is there a way to decrease it?

Posted on February 28, 2016 at 07:02Hi,please let me know how to use port b as output port in stm8s003f mode.Thanks

Posted on March 04, 2016 at 17:27I have been working with STM8S003F3. Can I get example program and documentation to communicate two STM8S003F3 s using SPI interface?  #stm8s003f3 #stm8 #spi

Posted on February 26, 2016 at 10:04We are using assembler code in our C-code. The jp instruction is used to jump into the booloader. But sporadic the jp instruction is not working. We have also used jpf instruction. Without success. What can be the reason? if ( RequestJumpToBoot )     {         u8 option_byte = 0;         uart1SendTxData (''-> jump to BOOTLOADER'' );              // set option bit for bootload mode         eepromReadAccess(EEPROM_BOOTLOADER_OPTION,1,&option_byte);         option_byte |= BOOTLOAD_MODE;         eepromWriteAccess(EEPROM_BOOTLOADER_OPTION,1,&option_byte);        &nbs

Posted on February 26, 2016 at 03:21Hi,I'm trying to use the Cosmic 32K compiler in ST Visual develop and having created a completely new project with no additional code in, I can't compile it. I can't compile using Idea either.My error is:&sharperror cpstm8 C:\Program Files (x86)\COSMIC\32K_Compilers\CXSTM8\Hstm8\mods0.h:1 FlexLM No such feature exists.main.c: The command: ''cxstm8 +debug -pxp -no -l +mods0 -pp -i''C:\Program Files (x86)\COSMIC\32K_Compilers\CXSTM8\Hstm8''  -clDebug\ -coDebug\ main.c '' has failed, the returned value is: 1exit code=1.Could anybody advise me on how to solve this?Thanks, #stm8 #stvd #compiler #cosmic

Posted on February 25, 2016 at 13:10I below code, I am reading ADC counts and sending it over CAN. ADC is working properly for _SINGLE conversion mode.... But it is not working for CONTINUOUS Conversion mode mode.

Posted on February 23, 2016 at 12:22 We are using the LIN Driver suit V 5.1.0 from ST microelectronics. The demo project provided in that is having a lin_basic_demo.ldf and lin_basic_demo.lgn files. I was successfully able to regenerate lin_cfg.c, lin_cfg.h and lin_cfg_types.h files using the lingen utility provided in the driver suit. In my original system, I have 3 lin channels on a master device. so as per the documentation of the lingen utility, i have to create 2 ldf files. So I have copied lin_basic_demo.ldf. So now I have  lin_basic_demo_1.ldf and lin_basic_demo_2.ldf. As per LIN specs. I have added 'Channel postfix name definition'. in both the files as channel_name = ''SCI1'' for first ldf and ''SCI2'' for other. I also have changed lin_basic_demo.lgn to indicate that there are 2 instances of LIN channel as follows. //Interfaces{  SCI1: ''lin_config/lin_basic_demo_1.ldf'';  SCI2: ''lin_config/lin_b

Posted on December 10, 2015 at 14:06The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on February 18, 2016 at 05:02Hi,I'm using DMA to transfer the data from USART1,The length of the data is varible.So I open the USART IDLE LINE interrupt.I try to set the DMA data counter to zero by using the function ''DMA_SetCurrDataCounter(DMA1_Channel2,0);''But the return value of the function ''DMA_GetCurrDataCounter(DMA1_Channel2);'' doesn't change to the value i set.So,What's the problem?Thank U.MCU: stm8l051f3Board: CustomIDE: IARSTM8L15x/16x/05x/AL31-L Standard Peripherals Library version:V1.6.2USART1 RX ISR function:INTERRUPT_HANDLER(USART1_RX_TIM5_CC_IRQHandler,28){    /* In order to detect unexpected events during development,       it is recommended to set a breakpoint on the following instruction.    */  uint8_t temp=USART_ReceiveData8(USART1);  temp=DMA_

Posted on February 15, 2016 at 14:37Hi all: I can't find out what the difference is between those 2 micro, May by someone will help :) Thanks a lot! Regards Per