STM8 MCUs

Posted on December 30, 2011 at 16:00 Hi there ! I am a newbiein ST microcontroller. 1) Tobeginning, I bought : * A http://www.st.com/internet/evalboard/product/251jsp (with a stm8l101K3 MCU) * A http://www.raisonance.com/tzr/scripts/resizer.php?filename=T018/image/10/a5/4cn9ziz4bnx6&mime=image/jpeg&geometry=297x>; kit (with the Ride7developmentenvironment) 2) So, my issue: programming a hello world soft for my MCU. In other words: To make a short software to detect an analog input DC voltage (3.3V DC on comparative inputs )

Posted on January 05, 2012 at 18:31regards to all. I have installed stvd ver 4.3.0 and free cosmic C compiler,the problem is that  i can notopen anyfiles of the project to edit,the IDE hangs with lost functionality. There is a solution to this problem? Thanks! #ide

Posted on January 05, 2012 at 15:54Hello,     The SM8S-Discovery are crashing after some time of use. The ''ST Visual Develop'' give the error ''Error : Cannot communicate with the board''. After the first time that the error happens, the board become unusable ! I am using the STM8S-Discovery for programming purposes only. I have removed the jumpers SB1 and SB2 as required.     The test board (that I want to write the firmware) are powered by 5V. I saw that the uC U2 of STM8S-Discovery are powered by 3V3. So my doubt is if I need to set the JP1 jumper in position 1 or 3 ?     I am using connector CN7 pins 2 (SWIM), 4 (RESET) and 3 (GND) only for the interface with the test board.     In some of the crashed boards, U2 became too hot !     Any help is welcome, as I have five STM8S-Discovery unusable here ! Thanks, Moises

Posted on January 21, 2011 at 08:27Hello, I use the ST Visual Develop IDE together with the Cosmic Compiler and the STM8L-Discovery. Everything seems to work fine, besides the debug function. When I try to start debugging I get the following error message:''Connection error (usb://usb): swim error [30200]: st-link connection error'' I found discussions of Linux users about this topic, but I use Windows... Any idea how I get this to work? Thanks in advance.

Posted on January 02, 2012 at 15:28Hi All,Since I accidently changed my system clock to a time in the future and set it back correctly, I get an error when ST Visual Development (using Cosmic in the backgrounds) compiles. It's an license-error more specific: FlexIm error: -88 ''System clock has been set back''So that, this message is appearing&sharperror cpstm8 C:\Program Files\COSMIC\CXSTM8_32K\Hstm8\modsl.h:1 FlexLM System clock has been set back. The error is known by COSMIC, I got this information: ''FLEXlm checks the computer for files with a timestamp beyond the current date. If there are files with a creation date in the future of what the current system clock reads, FLEXlm will return this error. These files must have been created when the clock was set incorrectly. As a result of re-installing Cosmic-

Posted on December 16, 2011 at 09:33Hi, My setup : Windows Vista STVD V4.3.0 Cosmic C compiler STM8S Discovery board I use the example project 'stm8s-discovery_led'. I have opened the '\Project\Discover\STVD\Cosmic\Discover.stw' workspace and it builds fine - no errors. Whenever I try to open a source file (e.g. main.c), STVD shows the hourglass and freezes. No editor window opens, no source file is shown. The source file path that STVD shows is OK. What am I doing wrong ? #stvd

Posted on May 07, 2011 at 08:38EXTI_SRx register

Posted on November 29, 2011 at 07:59Hi,I have established a connection between dev-board and pc by rs232 and the settings are programmed like data size 8 bit long, 1 stop bit, Parity - odd, 115200 baudrate..  And when I talk to the board (receiving) everything is ok but the problem is occurring while transmitting data. Pc receives the data 7 bit long. if I change the data size on my hyper terminal to 7 bit data size after the receiving data is done, I see the text what I want to see on my hyper terminal but if not, rubbish text is coming on..  I would appreciate if anyone can help me on this issue.. Regards, #usart

Posted on December 14, 2011 at 11:48i want to configure uart of stm8s003k3  as i have the code of uart for stm8s105c6t6 chip but when i select the stm8s003k3 chip complication  gives and error.can anyone please tell me what can i do for same code to be executed with the stm8s003k3 chip. #stm8s003k3

Posted on November 30, 2011 at 21:51Hello,I have a problem with STVD 4.3.0. When I try to open the workspace the program crash. Behaves the same way when I create a new project and trying to modify it in the editor. The problem appeared only in version 4.3.0, the previous version 4.2.1 there were no problems. STVD 4.3.0 installed on a freshly installed Windows Vista Home Premium (installed and run as administrator). The compiler is the latest version Ride7 Raisonance. Works on STM8S-Discovery. Does anyone have an idea where is the problem? Thanks and regards Jack #

Posted on November 04, 2011 at 01:51I'm building a project for an STM8S208 using the Cosmic compiler (CXSTM8_32K) within ST Visual Develop.  When I link, I receive the error ''symbol d_imul not defined''.  The project was working well previously using only 8-bit operations, but I recently added some 16-bit multiplication operations.  Do I need to link in an additional math lib to support 16-bit (or 32-bit, for future reference) operations? #stm8s-stm8s208-cosmic-stvd #stm8 #cosmic #math.h

Posted on February 05, 2011 at 10:02Can you help me  - when I build example stm8l discoevry. dev  - linker returns error:Running Linkerclnk -l''C:\Program Files\COSMIC\CXSTM8_32K\Lib''  -o Debug\discover.sm8 -fakeSemiAutoGen -mDebug\discover.map Debug\discover.lkf clnk: unknown option -fakeSemiAutoGen The command: ''clnk -l''C:\Program Files\COSMIC\CXSTM8_32K\Lib''  -o Debug\discover.sm8 -fakeSemiAutoGen -mDebug\discover.map Debug\discover.lkf '' has failed, the returned value is: 1exit code=1.discover.elf - 2 error(s), 0 warning(s)Where can be my problem?Thamks,fj

Posted on November 23, 2011 at 12:10Hello, we would like to use the STM8T141 part for proximity sensors. The question is the following: We need to disable the environmental compensation filter (ECF) as in our opinion this will cause troubles as the sensor application imply a a gradual change in the capacitance under observation up to the detection point and this could move the reference level along with the slow capacitance variation producing a missing detection. For our application the reference level must be fixed and not re-setup at chip startup. Can anyone help us on this? BR eugenio

Posted on November 20, 2011 at 16:04I'm using STVD 4.3.0 and trying to debug C source that contains spaces in the path - e.g., ''c:\my project\trunk\source.c''.  Everything builds, loads, runs, etc., but I can only debug in assembly.  And while that is fine some of the time, it can be a bit tedious.  In the debug source view, all the C source references show as something like ''C:\MY:18'' where 18 is the line number.  Any tips or tricks to fix? IIRC, this only started happening when I switched from using the Cosmic compiler to Raisonance #spaces-in-path-names #stvd-raisonance

Posted on October 01, 2010 at 08:03how to disable IWDG during run time

Posted on November 16, 2011 at 21:46Hello everybody!I've just got acquainted with STM8-L family and I'm already really fascinated. I have some questions though. Could anybody please help me?I'm currently reading the document called '' CPU Programming Manual'', the chapter containing information about the pipelining of the controller.Let's look at one of the first pages. It shows an example of the pipelining. I've marked the assembler commands with different colours for a better view.We can see a few commands here. The first item I had to deal with, was how exactly is the number of CPU cycles for each command determined. It is divided int

Posted on November 18, 2011 at 15:02I think I know the answer to this, but I just wanted to verify.  I have several different processors which we have in our products, and I am currently using Eclipse with GDB server on Ubuntu Linux for every other development setup.  I would like to use Eclipse with the Cosmic compiler (or Raisonance compiler) and GDB server for debugging on the same Linux host.  I have seen notes on how to use the Cosmic compiler with Eclipse, but I haven't seen verification as to whether the compiler runs under Linux or whether GDB server knows how to talk to the ST-Link JTAG emulator.  Does anyone have an answer? Thanks, Bryan

Posted on November 20, 2011 at 04:29Hi,I am new to STM8 Costmic tool. I downloaded the Cosmic STM8 32K software from company's website, and I am trying to compile a simple project. Everything goes fine until I try to start the debugger. Where is the debugger exe file? According to the tool document, ''Before you can use the ZAP debugger, you must first specify its location by right clicking on the Debugger tool in the Tool Browser''. What is the name of the debugger exe file, and where it is located?  I can not figure it out. Do I have to install ZAP debugger separately?  I am confused. Can anyone help?Thanks.ebuddy #stvd---cosmic-configuration

Posted on November 19, 2011 at 13:25Hello , We have a Cosmic compiler for STM8A: I would like to define the sections for .text in .lkf BB_SEG from 0x8080 to 0xAFFF CB_SEG from 0xD000 to 0x1f000 and BB_RAM from 0x100 to 0x200 CB_RAM from 0x250 to 0x500 I could not see any example for defining the text section in Manuals. How can I do it , Please guide me Thanks and Regards, Shashikanth

Posted on November 18, 2011 at 14:01I having been having problems getting the I2C to work on an STM8S105K6 in a 32 pin package. At first I couldn't I couldn't get the start bit to be sent. Then I realized that I neede to set AFR6 to put I2C onto PB4 and PB5. I could then send data so this appeared to solve the I2C problem but.... After programming AFR6 with STVD and then switching out of debug mode to make a code change I could no longer connect to the device. SWIM error [30006] comm init error, chip does not answer. I tried another board (I shouldn't have), same problem. This is a real problem as I don't now want to try programming SFR any more as it renders the board unusable. I think it must be that when I program AFR6 I am also setting something else but AFR6 is the only thing I am changing. I can see nothing else that should cause the pr

Posted on November 16, 2011 at 11:27I configured the PC4 and PC7 ports both as inputs: GPIO_Init(GPIOC, GPIO_Pin_7, GPIO_Mode_In_FL_No_IT); GPIO_Init(GPIOC, GPIO_Pin_4, GPIO_Mode_In_FL_No_IT); I would like to use these two pins with the ADC (channel 3 and 4 respectively) showing the voltage value on the on-board LCD. If I setup a program to do this with PC7 all behaves normally. If I do the same for PC4 when I apply a (constant) signal (say 0 V) the LCD goes mad and the program appears to reset. Checking with a scope PC4 is stuck to 3 V while PC7 is at 0 V, both with the same configuration written before. Could PC4 pin be somewhat broken or am I doing something wrong? EDIT Example: void main(void) { GPIO_Init(GPIOC, GPIO_Pin_4, GPIO_Mode_In_FL_No_IT);;  //Green light on GPIO_Init( GPIOE, GPIO_Pin_7, GPIO_Mode_Out_PP_High_Fast);

Posted on November 15, 2011 at 16:54after installing the STM8 STVD IDE v4.3 on a Windows 7 machine, I try to set the tools to The Cosmic tool chain. I get a message indicating that the Path does not contain at least one of the supported toolsets. I have the same setup on v4.1.6 of the IDE and do have this problem. Has anyone else experienced this problem. I tried to find v4.1.x and had no success. #stvd---cosmic-configuration

Posted on September 29, 2011 at 12:41I am using ST Visual Develop STM8S105xx Datasheet Page 57 details the 96-bit unique device identifier My Device is STM8S105K6 I am using stm8s_flash.c to call the FLASH_ReadByte function as follows: for (i=0; i<12; i++)             u_id[i] = FLASH_ReadByte(0x48CD+i); u_id is filled with zeros. I looked in the memory view and this location also appears to be filled with zeros. I can read other locations as expected. The Flash Registers are: [0x505a] FLASH_CR1 - Flash control register 1 0x00 [0x505b] FLASH_CR2 - Flash control register 2 0x00 [0x505c] FLASH_NCR2 - Flash complementary control register 2 Intrusive read [0x505d] FLASH_FPR - Flash protect

Posted on April 06, 2011 at 17:42STM8 BLDC motor with Hall Effects - Current Limit Problems

Posted on September 15, 2009 at 08:45gdb7 doesn t have MI Interface (doesn t work with Eclipse CDT) #eclipse-debug-with