STM8 MCUs

Posted on June 14, 2016 at 11:12Hi friendsI'm new with stm8 microcontrollers, i have download st peripheral library and stm8 cosmic free compiler. after building project i see this errors:--------------------------- Project 5 - STM8 Cosmic - Configuration Release -------------Removing intermediate files ... Done!----------- Project 5 - STM8 Cosmic - Configuration Release -------------Compiling main.c...cxstm8 +mods0 -pp -dSTM8S105 -i..\4 -iinc -iD:\COSMIC\FSE_Compilers\CXSTM8\Hstm8  -clRelease\ -coRelease\ main.cmain.c:Compiling src\stm8s_gpio.c...cxstm8 +mods0 -pp -dSTM8S105 -i..\4 -iinc -iD:\COSMIC\FSE_Compilers\CXSTM8\Hstm8  -clRelease\ -coRelease\ src\stm8s_gpio.csrc\stm8s_gpio.c:Compiling stm8_interrupt_vector.c...cxstm8 +mods0 -pp -dSTM8S105 -i..\4 -iinc -iD:\COSMIC\FSE_C

Posted on March 16, 2018 at 20:36Hello.I'm trying to get started with stm8s series with IAR compiler that I'm not very good at.So for the first project just trying to on and off a single LED to see if everything is ok or not.I used Keil before this in ARM MCUs, that at first I the compiler asked me if I want to add the startup file or not.So every time I pushed the yes button and everything was ok.But IAR does not do this.So I wanted to know what libraries should I add to the project?I have to mention that I'm just using the registers and not any standard libraries.The MCU I'm working with is an STM8S105k4t6.

Posted on March 13, 2018 at 10:20I have been using ST Visual develop for months, with the same MCU: STM8L, compiling and debugging with no problem.Then yesterday I started getting a message to say that it can't start GDB :Starting debug session... -> Failed to start GDB.(see also attached picture for message boxes).I have checked that the file path is correct Tools->Options : Toolset Tool set : STM8 CosmicRoot path : C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8I even tried uninstalling and re-installing, same error.Occasionally I have seen a popup saying that there is a lack of memory - but there is plenty available.I am running :Windows 10ST Visual develop (two version numbers given in the about box : 4.3.12, 3.6.5.2 Build 4 Aug 2017#st-visual-develop #gdb

Posted on March 13, 2018 at 09:20Development credentials:IDE: STVDMCU: STM8AF6226COMPILER: COSMIC CXSTM8During code compilation, space attribute conflict error arises as below;#error cpstm8 source\os.c:48(51) space attribute conflictWhat is the reason for this issue and how to resolve it?

Posted on March 08, 2018 at 16:29Hi all,I'm developing an application (PROJECT) for a STM8S208RB (128k flash) that was using around 100kB of flash and I have added recently a new library (LIBRARY) that has increased memory usage up yo 120kBof flash.I had an issue because of this event that has been solved. More info in here: https://community.st.com/message/188751  In the new library I have a function that reads a frequency in Hz (IE: 208064) and then print it in MHz (IE: 208.064 Hz):void disp_freq_mhz(void){    uint32_t frequency;    uint16_t mhz_num, khz_num;   frequency = frequency_hz;                 &nb

Posted on March 13, 2018 at 19:14Hi all,I'm using STM8l052R8 MCU.I'm trying to switch the clock from HSI to LSI but I can't. this is my code:{CLK_DeInit(); //deinitiate clock CLK_SYSCLKSourceSwitchCmd(ENABLE); //enable switchingCLK_LSICmd(ENABLE); //enable LSI oscillatorCLK->SWR = 0x02; // choose LSI as a clock source}the debugger doesn't work correctly. I'm using ST-Link Debugger.Is this code Is correct or How to confirm that I switched to LSI correctly ??

Posted on March 06, 2018 at 17:23Hi all,I'm developing an application (PROJECT) for a STM8S208RB (128k flash) that was using around 100kB of flash. Now I have added a new library (LIBRARY) that has increased memory usage to 120kB of flash.Now, when I delete some code in my application I get the following error:&sharperror clnk PROJECT_release\PROJECT.lkf:152 PROJECT_release\library_api.o: section boundary crossing (.text:095c) f_LIBRARY_SetListCallback The command: 'clnk -l'C:\Program Files (x86)\COSMIC\FSE_Compilers\Lib' -o PROJECT_release\project.sm8 -mPROJECT_release\PROJECT.map PROJECT_release\PROJECT.lkf' has failed, the returned value is: 1exit code=1.(I get this error after commenting an if-else related with the library)(LIBRARY_SetListCallback is a function related with the

Posted on March 05, 2018 at 18:23I am using STM8S003F3U.  This MCU is being used with a SPIRIT1 transceiver. Using OOK modulation, the SPIRIT1's raw data is being sent to pin PC3 on the MCU.   Because my transmitter's data rate is inconsistent, I need to be able to measure the pulse HIGH time of the data coming across.  To do this, it is my belief that the following needs to be done:1) Configure PC3 to its alternative pin function (TIM1_CHANNEL_1_N).  I do not know how to do this.  Can someone provide a code example?2) Configure the TIM1 capture channel with two ISRs (one for rising edges and one for falling edges), so that the pulse time can be measured.  There is some rudimentary code from ST, but it is unclear how to do this.  Can someone provide a code example?Once these two steps are complete, I can derive the bit rate and decode messages.  Any help that can be provided is much a

Posted on March 06, 2018 at 10:58Hello, I'm STM8S user.my ask is why that mcu is no operation when no connection of st-link debugger.If i'm doing downloading the Hex file in the mcu, so mcu is operating, But ejecting the st-link debugger at the PC,mcu is no operation.

Posted on March 06, 2018 at 11:58Dear ST,I have added a Post-Build step to my STVD project:When I build from STVD the step runs fine:When I generate a Makefile the following section is generated:

Posted on March 05, 2018 at 09:37Hello, I'm STM8S user.I doing find the STM8S math.h, math.s in stm8s code example.. But i dont find it,, I want to use ABS(X) ,, ABS(X) isnt there in math.h? 

Posted on March 04, 2018 at 13:01Hi All, I'm working with stm8s208r8. Is'it possible to use the CAN Bus lines like a common UART? I need of one more UART and this lines are already connected to a RS232 converter on my board.Thanks

Posted on March 03, 2018 at 17:08Hey guys.I was just working with stm32f2 series and used cube mx to generate the code,but stm8 series do not have code generator in cube mx(sad :().I wanted to see if there is any HAL divers or i have to write the code with cmsis?

Posted on March 02, 2018 at 07:52Hi I am new in st8s  micro controller . I am using IAR software to program the chip.When i click on download error occurred 'Failed to set configuration with MCU name STM8S003F3: SWIM error [30006]: Comm init error: chip does not answer 'Connection of STlink/V2  to chipStlink/ V2 ----> Chip(STM8S003f3)GND  ----> GND(Pin no.7)VDD(5V)  ---->  VDD(Pin no.9)NRST  ---->  NRST(Pin no.4)SWIM ----> SWIM(Pin no.18)100nf capacitor between VCAP  to gnd please help me sorry for Englishi didn't understand what to do?

Posted on February 25, 2018 at 11:04Although the STM8 reference manual RM0031 does not seem to mention it, I understand from the AN2658 (section 2.7) that I must read ADC_DRH and ADC_DRL in a specific order, with the actual order depending on my configuration of the ADC.It seems obvious (at least to me) that the the LDW instruction can be use to read these two consecutive locations is one instruction. AN2658 does not mention this 'obvious' method, so I'm I missing something in my understanding. Is LDW unsafe in this siltation?Specifically I was intent is to do either:  LDW x, $0x5344or LDW y, $0x5344

Posted on February 26, 2018 at 20:22SDCC 3.7.0 Released Today, SDCC 3.7.0 has been released. As always it has been put online in the SourceForge File section.https://sourceforge.net/projects/sdcc/files/Since we are having some troubles with some machines in our compile farm, for 3.7.0 no binaries are released. The release consists of source and documentation tarballs only. Also, Maarten, who has been the release manager for a few years, is currently too busy to manage the 3.7.0 release. We hope to be back to normal for a 3.8.0 release later this year.There have been a lot of improvements, both features and bug fixes since SDCC 3.6.0. The full ChangeLog is at:

Posted on November 29, 2017 at 19:18I'm new to STVD, but I've used two other microcontroller IDEs in the past.  I have a standard Windows 10 machine with the standard STVD installed.  This is a simple test using Assembler code and the STM8S003F3P micro.  When I try to Build, I get an error. The command: 'asm -sym -li=Debug\main.lsr main.asm -I='C:\Program Files (x86)\STMicroelectronics\st_toolset\asm\include'  -obj=Debug\main.obj' has failed, the returned value is: 1exit code=1.main.obj - 1 error(s), 0 warning(s) All the paths look good, but I can't find any documentation on the error codes.  I'm not sure what STVD is looking for.  Any ideas?  Thank you.

Posted on February 26, 2018 at 12:54Hello,         I m having STM32F0308-Disco board and STM8S003F3P6. I want to debug STM8S003F3P6 using STM32F0308-Disco board.Here circuit images are attached.   Please tell hardware connections for that.Thanks and RegardsSandeep

Posted on February 01, 2018 at 11:12how to find MCU serial number/unique id for the MCU?

Posted on February 25, 2018 at 20:15Hi,I want to detect zero crossing of AC mains by using stm8l151kxxx. In referance manual it says there are two comparators for zero cross detection but it doesn't give detailed information about hardware implementation. While I was using other vendor's mcu, I was using two serial connected resistor between mains and mcu. But in this case, there is no protection diodes(clamping diodes) for analog inputs, so I dont know how should I implement hardware. Anybody have done this? Waiting for your help.Thanks#stm8l151 #zero-cross

Posted on October 16, 2013 at 10:36Hello, I am not sure if this is a proper place for reporting errors. If not so, please tell me, where to report it. The error is in stm8_uart1.c module of STM8S_StdPeriph_Lib_V2.1.0. According to description of UART1_ITConfig one of the parameters can have value UART1_IT_RXNE or UART1_OR. When using one of these, the assert_failed function will be called as macro IS_UART1_CONFIG_IT_OK(UART1_IT) treat them as invalid parameters. Using parameter UART1_IT_RXNE_OR works well with the same effect, but at least the description of UART1_ITConfig should be corrected to safe developers time ;-). #uart1_itconfig-stm8s_stdperiph

Posted on February 21, 2018 at 08:07On an STM8S003:When I write a page to eeprom it sporadically seems to cause a lockup of the CPU. When I check with a scoop it seems to finish the writing but milliseconds thereafter a lockup happens. It does not help if I disable interrupts during the writing to eeprom. 

Posted on February 18, 2018 at 21:45Hello,In ST Visual Develop there is no shortcuts for 'Start debugging' and 'Stop debugging'.Why it wasn't implemented yet?These shortcuts are standard in many others IDE.Can it be configure in seetings or external text file?Regards.#stvd

Posted on February 16, 2018 at 11:38I am trying to understand what 'sim()' does in the example code that comes on the STM8L-DISCOVERY eval board (Introduction to STM8L15x power saving modes using the STM8L-DISCOVERY IDD measurement feature) where the source can be downloaded from http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm8-embedded-software/stsw-stm8009.htmlIn the Project/Discover/src/icc_measure.c file in function ADC_Icc_Test it runs 'sim()' and I cannot find a definition anywhere what this function does - example: /* Low power mode */ case MCU_LPR: Halt_Init(); sim(); /* To prepare to start counter */ GPI

Posted on February 16, 2018 at 12:58We have LIN slave driver. We are sending the LIN commands from LIN master (A PC application). However, the data packets are missing to be received on LIN slave side. Any suggestion, how to debug/detect this?