STM8 MCUs

Hello communityCan the STM8AF series be programmed via the LIN bus using the Flash Loader Demonstrator?

Hi allRegarding the current release for STM8:COSMIC STM8 C Compiler Special EditionVersion: 4.6.1 Date: 31 Jan 2024Just to report that the current version of Cosmic C compiler on STM8 break the code snipplet attached.With the MOCKUP undefined, the code breaks, this is our original code.With the MOCKUP defined, the code compiled, this is the current work around.The previous version 4.5.6 works before.Calvin 

Alright, I got my CAN stuff working in ID/mask mode, with 'all accepted' values.I need to setup a CAN filter to only receive STD ID of 1512 (0x5e8).I'm confused why this doesn't work.  Using SPL looking at the CAN examples.  I saw IDList, and this seemed appropriate because I only need 1 ID.  But, after setting to IDList, and entering 0x5e8, it doesn't work./* CAN filter init */ CAN_FilterNumber = CAN_FilterNumber_0; CAN_FilterActivation = ENABLE; CAN_FilterMode = CAN_FilterMode_IdList; CAN_FilterScale = CAN_FilterScale_16Bit; CAN_FilterID1=0x5e8; CAN_FilterID2=0; CAN_FilterID3=0; CAN_FilterID4=0; CAN_FilterIDMask1=0; CAN_FilterIDMask2=0; CAN_FilterIDMask3=0; CAN_FilterIDMask4=0; CAN_FilterInit(CAN_FilterNumber, CAN_FilterActivation, CAN_FilterMode, CAN_FilterScale,CAN_FilterID1, CAN_FilterID2, CAN_FilterID3, CAN_FilterID4,CAN_FilterIDMask1, CAN_FilterIDMask2, CAN_FilterIDMask3, CAN_Fi

I'm trying to get my STM8AF5288 to read CAN from a TJA1050.I had it reading perfectly.  1Mbps @ 16Mhz.  Using time_seg1 of 8, tim_seg2 of 7, prescale of 1.  SJW1.The sending unit is an Arduino attached to an MCP2515 and TJA1050.  Verified with another arduino unit that it can read the sending on the CAN bus.Now, I decided that after utilizing the internal clock and being able to read CAN, I would switch to an external resonator.  Threw that on, and suddenly couldn't get CAN to work anymore.  I hadn't even selected the external clock to be used.  Still had internal setup in the code.So, I removed the resonator I installed.  Still can't get CAN.I have 7x of these PCB, so I thought maybe I messed something up.  Rebuilt another w/ all new components.  Still not seeing CAN.I am getting stuff populated in the CAN FIFO data.  But, it's always the same thing and appears to be 'junk'. 

Hello, I have bought an STM8s003 board and would like to use it to control ws2812B LEDs. But the libraries I have used with other controllers e.g. FastLED are not compatible with the STM8s003. Do you have any idea how I can solve this? I would prefer to be able to continue using the Arduino IDE as before.

Hello , Can you help me for the microntroleur reference 1) Why don't you recommend this product for new designs ?2) Do you have an idea of the number of years before the end of its life ?3) NRND information available in an PCN ? Thank you in advance

I changed my laptop system from "Windows 7" to "Windows 10" and reinstalled "STVD", "STVP", "COSMIC Software". When I try to set the toolset in the "STVD" window for "STM8 Cosmic", the root path "C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8" and the corresponding changes in the following lines are automatically included. But while accepting "OK" error message is displayed as "Warning: Toolset rootpaths have not been specified for at least one of the supported toolset. Confirm that the root path for the toolset that you are using has been specified."How to confirm the root path? What is the solution?

I download firmware in s19 format via STVP program.I would like to know how to check the checksum of firmware via STVP_Cmdline.How can I check it through the command?

When I do a "Rebuild all" of a new, blank project, I get the following errors:----------- Project test - STM8 Cosmic - Configuration Debug -------------Removing intermediate files ... Done!----------- Project test - STM8 Cosmic - Configuration Debug -------------Compiling main.c...cxstm8 +debug -pxp -no -l +mods0 -pp -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8" -clDebug\ -coDebug\ main.c #error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\HSTM8\mods0.h:1 FlexLM Invalid host.main.c: The command: "cxstm8 +debug -pxp -no -l +mods0 -pp -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8" -clDebug\ -coDebug\ main.c " has failed, the returned value is: 1exit code=1.test.elf - 3 error(s), 0 warning(s)When I do the same in a VMware installation, there are no problems.When I modify the the license file on the VM

Two days ago, SDCC 4.4.0, a C compiler targeting various 8-bit architectures, including STM8, was released. IMO, for the ST8, the main two improvements over SDCC 4.3.0 are:New optimizations, in particular generalized constant propagation and the rotation optimizations, make quite a difference incode size and speed for some programs.Good ISO C23 support - many ISO C23 features were introduced in 4.3.0, but there were bugs in some corner cases, which have since been found and fixed. For those who wonder how current C compilers for the STM8 compare, I've done a quick comparison:http://www.colecovision.eu/stm8/compilers.shtmlSummary: SDCC is doing great, Cosmic is doing okay, the others not so much apart from very specific use cases (no surprise here - by now, IAR and Raisonance compilers haven't s

Hello,How can I put STM8S on the Internet using Wi-Fi?

I would like to know where the configuration set in STVP is stored.I'd like to set the configuration automatically, but I don't know where the default storage address is.  

I'm using the ST Visual Developer V4.3.12 and trying to do what sample stm8s code suggests, namely set a breakpoint on TRAP interrupt (which I am 99% sure it tripping because of a bug in my code).  The debugger keeps "moving", i.e. removing the breakpoint.What do I have to do to stop this happening?  FWIW I am copying the ST peripherals library code so this is the interrupt routine:/** * @brief TRAP Interrupt routine * @PAram None * @retval None */ INTERRUPT_HANDLER_TRAP(TRAP_IRQHandler) { /* In order to detect unexpected events during development, it is recommended to set a breakpoint on the following instruction. */ }

How do I correct this code so that the pointer is a constant and not place into RAM?```const typeOfVariable Variable = DEFINED_VARIABLE_VALUE;const typeOfVariable *pVariable = &Variable;````pVariable` keeps ending up in RAM and I've run out of ideas :-(.Thanks!

Hi, I bought me some mini mp3/wav players frome china. Serial communication is executed at a fixed baudrate of 9600baud. Messages to and from the unit do both have a size of 10 bytes. Transmitting serial messages works perfect. Receiving messages do not work. I use the UART1 RX interrupt vector 18 which is executed if the receive data byte buffer (UART_DR) is not-empty. I put a PC3 pin-toggle in the receive interrupt handler after the data (UART_DR) register is read. On my logic analyser I see that the pin toggle takes more time per received byte. I measure the time between the end of the first received STOP bit and the PC3 toggle being 354us which to my opinion is awfully long... With each received byte the time between de end of the STOP bit and a PC3 toggle increases. At byte 6 it is 870us and then PC3 starts oscillating (9us) as if the data (UART_DR) register is not read anymore and contains an unread value. I disabled all other interrupts. What could be going on?

I have followed AN2959 and have a bootloader running on an STM8S Discovery board but I cannot make either the command line or GUI based STMFlashLoader programs upload a program - can anyone help?- The command line version always says `No response from the target, the Boot loader can not be started.` and from running the bootloader under debug, I cannot see any attempt to talk to the bootloader- The GUI version does connect but will not upload an `s19` image saying `Cannot find the E_W_ROUTINEs file.  Please make sure you selected the right device...` except that on the previous page, no devices were listed.FWIW, the command-line set-up is port 9 (Windows COM9), 9600, 8, E, 1 but as I say, there is is no indication that the program is trying to send anything!Thanks for any suggestions, even if just debugging tips to try!

I am using the STM8S bootloader via a USB/FTDI.  I can use Wireshark/USBpcap and catch the exchanges and I have a somewhat happy "export packets, parse with Python" method of looking at the exchange.But has anyone already written a proper Wireshark dissector for this?

AN2659, section 4.1.3 Vector table redirection, says that "The primary interrupt table contains a set of jumps to the user interrupt table" but the same code that accompanies this document does not seem to implement this - does this code just need to be extended?Also AN2659 claims that if I edit the USER BOOTLOADER PROTOCOL PARAMETERS etc in `main.h` then the resulting code will use these but this does not seem to be correct.  For example the pin that triggers the bootloader appears to be hardcoded to GPIOD and ignores the user custom settings.  Did I miss something?

I have seen a number of questions about reading the stm8s mapfiles and I was also someone who struggled so the attached tool might be helpful (and do let me know of any errors!).The key elements are:- There are some elements that are stored in ROM (", from" segments) and also then copied to RAM (", initialized") so they require space in both ROM and RAM- Other segments require space in either ROM or RAM- There can be (apparently) wasted space in the RAM allocation.Perhaps not the best Python code I've every written but hopefully it helps folk."""Small script to add up resource usage from map file.""" import sys import re SEGMENTS = r"segments" RGX_SEGMENTS = re.compile( r".*?Segments.*?\-+(?P<" + SEGMENTS + r">.*?)\-+.*?Modules.*", re.DOTALL | re.MULTILINE) START = r"start" END = r"end" LENGTH = r"length" NAME = r"NAME" RGX_SEGDATA = re.compile( r"start\s+(?P<" + START + r">[0-9a-f]{

I have a very simple main using UART1 and already my application is 7kB!  The web implies that this is because I am getting a lot of UART1 and CLK code built and linked in that I am never using.  One suggestion is to split the UART1 and CLK files into individual "one file per method" codebases, build a library, and then when my application links it will pull in only those methods that I am actually using.However I cannot see how to configure a project to build a library instead of an image.  Could someone point me an example of how to do this please?

Hello all.  I have an ISR inside which I want to disable and enable interrupts. Reference manual says :  https://www.st.com/resource/en/reference_manual/rm0016-stm8s-series-and-stm8af-series-8bit-microcontrollers-stmicroelectronics.pdf Disabling the interrupts#asm PUSH CC POP ISR_CC(1) SIM #endasmEnabling the interrupts#asm PUSH ISR_CC(1) POP CC #endasmI want to achieve mutual exclusion. I have tried using sim and rim and it works for now.However the above method got me confused. What do I do for POP ISR_CC ? Please suggest me exact ways. I hav

Ref: https://www.st.com/en/embedded-software/stsw-stm8006.html#overviewI have downloaded the software above which is a companion to AN2659 but there are directories not mentioned in the application note.  Can anyone tell me what the RIDE and EWSTM8 directories are please?Thanks.

Ref: stm8s flash entire new program - how? - STMicroelectronics CommunityHow do I ensure that an entire routine, and anything that it might call, is running in RAM?  I think there is a RAM() macro around, for example, the flash write methods so can I place this around my own routine and will this "filter down" to all called routines or do these also have to be similarly flagged?

Hello,STM8S208RB microcontroller. Pins PA4 and PA5 do not work in push-pull mode. Why? I haven't tried it in other modes. It's not a microcontroller issue because I tested it on two different microcontrollers. Pins are shown in the datasheet (see figure bellow).I tested the robotic functionality using this code:main(){    PA_DDR = 0b01111110;    PA_CR1 = 0b01111110;

Posted on September 06, 2010 at 08:53STM8 Option byte problems #tytyt