STM8 MCUs

Posted on January 28, 2014 at 04:56Hello My project compiles fine but I'm getting memory errors at the linker stage: segment .ubsct size overflow (4) .text size overflow (572) Is there any way to find out how much memory I have allocated for each of my memory sections (.text, .ubsct, etc.) , and can I change them?http://textdump.net/raw/4038/. By adding in a few more variables, I begin to get the overflow error, and could no longer build successfully.   Any insights would be very much appreciated! Thanks! #overflow #memory-usage #segment-overlap #memory-overflow

Posted on August 09, 2017 at 22:20I am trying to create a bit structure at a specified location (in this case at 0x500A the portc odr)below is in common.hstruct iobits{unsigned char b0:1;unsigned char b1:1;unsigned char b2:1;unsigned char b3:1;unsigned char b4:1;unsigned char b5:1;unsigned char b6:1;unsigned char b7:1;};extern struct iobits oportc;and this is in the main.c file at 0x500A struct iobits oportc;This works with Raisonance compiler, but not the Cosmic.I then read that the Cosmic needed the following formatstruct iobits oprotc @0x500A;However an error occurs as follows:-#error clnk Debug\lcc.lkf:1 bad address (0x500a) for zero page symbol _oportcIf I declare it without absolute address or another variable with the same format it works.In common.hextern struct iobits opor

Posted on February 10, 2018 at 08:02STVD IDE ProblemI used STVD version 4.3.12 with Windows 10 64bit.I was create workspace, project and open project settings window click right button.In project settings window, right tab side bottom area not appear.How can i solve this.

Posted on February 08, 2018 at 15:57Hi,   I designed PCB for STM8L052C6 and programming using ST-LINK V2 mini. I am using 3.3v GND SWIM NRST pins but is not programming. I have selected STM8L052C6 in STVP and Selected STM8L052C6 compatible compiled file. Still i am getting problem. I am directly using these four pins with ST_LINK V2. Kindly help me to solve the issue. Thanks in advance..#cant-download-program-in-flash

Posted on February 08, 2018 at 15:43I'm using the example code from STM8L15x-16x-05x-AL31-L_StdPeriph_Lib as a starting point.I'm able to get GPIO and I2C working but the configuration to get the DAC1 on pin PB4 not working.I have the following configuration:SYSCFG_RIIOSwitchConfig(RI_IOSwitch_15, ENABLE); //get DAC1 on PB4 pinCLK_PeripheralClockConfig(CLK_Peripheral_DAC, ENABLE);DAC_DeInit();DAC_Init(DAC_Channel_1, DAC_Trigger_None, DAC_OutputBuffer_Enable);DAC_SetChannel1Data(DAC_Align_12b_R, 2000);but the output on PB4 stay's zero.Also tried adding a check to be sure the DAC value is set correctly with:while(4000 != DAC_GetDataOutputValue(DAC_Channel_1));and the loop is just exited.The problem must be in the IO switch configuration, but i have no clue what it could be.Any idea's?#io-pins-matrix-switch-peripheral

Posted on February 06, 2018 at 19:44For an embedded project with micro STM8,  would be very useful to me to have the mathematical formula to calculate the 'timestamp' (epoch) in 'C' without using libraries because, unlike the STM32, for this family of microcontrollers does not exist. Does anyone have any suggestions?#timestamp

Posted on January 25, 2018 at 11:06Hello, I'm using STM8L052R8(64KBytes ROM, 4KBytes RAM) and cosmic compiler.I can see as below.#error clnk Debug\dm5xx_stm8l.lkf:14336 (C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\lib\libm.sm8)fmul.o: section boundary crossing (.text:00d5) The command: 'clnk -l'C:\Program Files (x86)\COSMIC\FSE_Compilers\Lib' -o Debug\dm5xx_stm8l.sm8 -mDebug\dm5xx_stm8l.map Debug\dm5xx_stm8l.lkf ' has failed, the returned value is: 1exit code=1.What can I do?.....

Posted on January 23, 2018 at 21:58Hi,I am using the STEVAL-IHM041V1 demo board to develop my own application. The mcuis STM8S103F3P6. I checked the EEPROM locations to verify that the EEPROM read/writeare fine when the +5V is stable. But I have problem trying to save the last data settings to EEPROM after the power has been removed. The EEPROM write is happening before the +5V drops below 3V(BOR voltage). But it didn't work and I didn't get thelast saved data from EEPROM read once the board is powered up again. Why? Does anyoneexperience similar problem?

Posted on February 01, 2018 at 11:11i use stm8l151g4 pd4 to control external ADC converter,when pd4=1,ADC converter start,and pd4=0,ADC converter stop,pd4 initialized as below: PD_DDR_DDR4 = 1;       //PD4- OutputPD_CR1_C14 = 1;          //PD4 - Push-pull PD_CR2_C24 = 0;          //PD4 - Output speed up to 2 MHz...PD_ODR_ODR4 = 1;      //ADC start convert...PD_ODR_ODR4 = 0;      //ADC stop convertbut when PD_ODR_ODR4 = 1, the PD4 pin  is still 0,why?btw:The circuit and the program work good at the beginning.

Posted on January 31, 2018 at 21:55Where do I find (manual and section/table) the voltage required to set external interrupt to low and high and also the minimum and maximum current.  I am looking for this information for the STM8L152C6, so something like voltage needs to below 1v to be low and above 2V to be high and minimum current required.ThanksMike#interrupt

Posted on January 29, 2018 at 17:02When I try to compile my project or the standard project, I get the message -clDebug \ -coDebug \ main.c #error cpstm8 C: \ Program Files (x86) \ COSMIC \ CXSTM8_32K \ Hstm8 \ mods0.h: 1 FlexLM No such feature exists.I copied the license file to the correct folder, Cosmic CxSTM8 32K and STToolset were installed on the PC. The error is present on two different systems XP and Win7. Reinstalling software does not solve the problem. How can I fix this problem?

Posted on April 18, 2016 at 14:20Hi,I'm trying to operate TIM1 on STM8S003F3P6, I am using the standard peripheral library code, but I am only able to produce pwm on TIM1_CH3 (PC3) pin, the other pins do not produce any waveforms at all. I'm sure this is not a hardware issue- because when I toggle the pin as a gpio- it works fine, what am I missing here?The code is:static void TIM1_Config(void){  /* TIM1 Peripheral Configuration */   TIM1_DeInit();    /* Time Base configuration */ /*  TIM1_Prescaler = 0  TIM1_CounterMode = TIM1_COUNTERMODE_UP  TIM1_Period = 65535  TIM1_RepetitionCounter = 0 */  TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 65535,0);  /* Channel 1, 2 and 3 Configuration in PWM mode */  /* TIM1_OCMode = TIM1_OC

Posted on January 23, 2018 at 23:47&sharpdefine TIM1_PSCRH (*(volatile uint8_t *)0x5260)I understand that now when I set TIM1_PSCRH = <some 8 bit value> that the Timer 1 Prescaler High Byte register will be set because it is located at address 0x5260.What I don't understand is what appears to maybe be a volatile pointer to a pointer of an unsigned 8 bit integer that is defined to the compiler as a constant value requiring at least 16 bits to represent. What am I not understanding.. because the above statement probably makes no sense, and if it does make sense then I'd say I'm even more confused.Thanks!#address #stm8 #compiler-def

Posted on January 24, 2018 at 08:07I am getting an error while compiling the file.Can any one please help me out.sdcc -lstm8 -mstm8 --out-fmt-ihx delay.c?ASlink-Warning-Undefined Global '_GPIO_Init' referenced by module 'delay'?ASlink-Warning-Undefined Global '_GPIO_WriteLow' referenced by module 'delay'?ASlink-Warning-Undefined Global '_GPIO_DeInit' referenced by module 'delay'?ASlink-Warning-Undefined Global '_GPIO_WriteHigh' referenced by module 'delay'Makefile:16: recipe for target 'delay.ihx' failedmake: *** [delay.ihx] Error 1Thanks & Regards,Prasad.

Posted on January 24, 2018 at 12:10Hi,   I looking to achieve lowest power consumption in halt mode. Datasheet says we can achieve 350nA in halt mode. I am able to achieve 195 uA(micro Amp) at 1.8V.. I have written simple test code. FYI i am adding my code below which is written in STVD IDE and attached project folder also.How can i achieve 350nA? Plz help meCode:main.c/* Includes ------------------------------------------------------------------*/&sharpinclude 'stm8l15x.h'/* Private macro -------------------------------------------------------------*//* Private variables ---------------------------------------------------------*//* Private function prototypes -----------------------------------------------*/void Delay (uint16_t nCount);

Posted on January 24, 2018 at 11:51I am using STVD for development with cosmic compiler tool chain for stm8af5288 .In stvd manual it is mentioned about stack control feature like below  but in stvd itself i am not able to locate any such window .http://d1.amobbs.com/bbs_upload782111/files_13/ourdev_426818.pdf 

Posted on January 22, 2018 at 03:35I use STM8cubeMX.Isn't code generated by STM8cubeMX?If possible, what should I do?#stm8cubemx #stm8 #stm8-code-generate

Posted on January 22, 2018 at 07:19unsigned int clock(void) {      unsigned char h = TIM1_CNTRH;      unsigned char l = TIM1_CNTRL;      return((unsigned int)(h) << 8 | l);}Can i know the function of above highlighted statement. I have experimented on that statement by change the number in place of 8 i have replaced with different numbers, it given me different type of blinking conditions.But only in 8 it is giving me perfect blinking output.

Posted on January 20, 2018 at 12:11IAR recently added support for a device called 'ASTWBC5V' to their Embedded Workbench.I can't find anything on it at ST; neither is it in stock at distributors.From the name I guess it is some STWB variant.What is it? Where could I find a datasheet? Is it a future device? Discontinued?Philipp#iar #stm8 #stwbc

Posted on January 19, 2018 at 16:09We are using STM8L051F3 and it has 2 inputs which is 2 key keypad which we are using for our application. Now i want to use that keypad for ON/OFF of microcontroller also.How i can do that? I want to ON controller power supply when i press keypad key and then i will use those key for my application also and then if i key for long time or press both keys it will OFF, i.e. power supply cut off. This is like our old keypad mobile phones which has 1 key for Mobile phone ON and that same key we can use for receiving call also. How can i do that for my STM8L051F3?

Posted on January 19, 2018 at 11:01Can i have library files for delay function for STM8S103F3/STM8S003F3.Thanks & Regards,Prasad.

Posted on January 19, 2018 at 06:29Can i have programming tutorials or materials related to STM8S103F3 and STM8S003F3. Thanks & Regards,Prasad.

Posted on January 19, 2018 at 06:35Can i know the procedure to select particular pin in the corresponding port in the STM8S103F3/STM8S003F3, DO we need to erase the previous program in the controller manually while we are dumping the new program? Is it necessary? . Please help me out.Thanks & Regards,Prasad. 

Posted on January 18, 2018 at 21:20Where can I find documentation on the STWBC, STWBC-EP and STWBC-WA? The documentation I found at http://www.st.com/content/st_com/en/products/power-management/wireless-charger-ics/stwbc.html , etc doesn't seem to include anything on the included STM8 microcontroller, such as memory sizes, memory map, I/O registers, etc.Philipp#stm8 #stwbc #documentation

Posted on December 12, 2014 at 10:51Hi all i am using STM8S003 using Cosmic C & STVD, it exists unexpected reset problem , and i have checked all Watchdog was disable and no sleep mode, and reset flag only come out the SWIM reset triggered, can anyone help ?