STM8 MCUs

Posted on October 05, 2016 at 20:17Hi, I'm working on a project that needs a microcontroller to produce a control signal for an analog audio effect. The microcontroller I choose needs the following requirements:-Through-Hole / DIP package-At least 4 PWM or DAC outputs-At least 2 ADCs-At 4 GPIOs-Preferably have a development / evaluation / discovery boardCan anyone recommend a good chip for this application and the related development tool?Thanks! #through-hole #pwm #dac #dip

Posted on October 05, 2016 at 15:26Our company as an electronic engineering company is willing to use your products specifically STM8S003.For more than 12 years we have used Atmel products and have lots of experiences on it.Beginning with your STM8S003 we faced lack of accessibility to the registries. Let me explain more, we want to use the internal 16MHz oscillator and add / minus 1 MHz. This can be easily done in Atmel ICs by calibrating the registry and even in more values, but in your STM8S003, only a single parameter exists, CLK_HSITRIMR register, which it can change MAX. 0.5% frequency. This is not enough at all.It seems that you also should have factory pre-set registry for oscillator calibrating. In order to solve the problem how could we access to it? How could we change it?

Posted on February 26, 2016 at 03:20Hi,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, #stvd-cosmic-compiler-stm8l

Posted on August 23, 2015 at 08:54Hi,I am new to use STM8L controller.I am just trying to put Simple character on UART using STM8L discovery board.But I am failed to do this.Following is my code for this.void main(void){        u8 Data = 'N';        CLK_DeInit();    GPIO_DeInit(GPIOC);         CLK_HSICmd(ENABLE);    CLK_SYSCLKSourceConfig(CLK_RTCCLKSource_HSI);    CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1);            GPIO_ExternalPullUpConfig(GPIOA, GPIO_Pin_3, ENABLE);    GPIO_ExternalPullUpConfig(GPIOA, GPIO_Pin_2, ENABLE);        USART_DeInit(USART1);    CLK_PeripheralClockConfig(CLK_Peripheral_USART1,

Posted on September 29, 2016 at 15:03Due to the CDT debugging issue this is a fair workaround for productivity (convenience due to Eclipse, issue tracking, git handling, doxygen (eclox) etc.)Google always helps, so I gathered all info I found and tested this.Of course one could use a rather modern IDE like Raisonance Ride7 or IAR or free tools like code::blocks with SDCC and so on. I prefer Eclipse...and COSMIC. It is not limited to 32k anymore, so try it. I sticked to this since 2004 with a ST72F321 and the old CodeWarrior IDE... STVD is o.k, I like it more than IAR and Ride.In STVD: Export Makefile in menu Project. Rename *.mak to makefile I would try to compile the code in the commandline to be sure it works. It does not always due to the path issue (spaces in the path...) I had to use quotation marks like this ToolsetBin=''C:\Program Files (x86)\

Posted on September 28, 2016 at 15:36I've downloaded STVD, installed it, Downloaded Cosmic C, installed it and downloaded en.stsw-stm8069.zip (standard peripheral library) Now. I cannot for the life of me get this thing working. I opened the .stw project within the unzipped std perph lib and when I build the stm8s105 project I get ''The Executable Cannot be found'' you can fix it by edit...... I try and fix it but I have no idea what it wants me to do.Thanks Bill #stm8s-discovery

Posted on September 28, 2016 at 12:54Hi Dear, I Need IBIS Model STM8AL3188 to Simulation it in the HyperLynx ? IS there it ? Thanks for attention.  

Posted on September 23, 2016 at 19:24I'm using the ST-Link V2 as a programmer repeatedly.  Sometimes it returns no ST-Link detected when I try to program.  Unplugging the device then plugging it in again solves the problem. When its in this state, I can still see the device in device manager, and it seems fine.  I happened to have the device on a powered USB hub, so I unplugged the hub from the PC, which left the ST-LinkV2 still powered and then plugged it back in.  It behaved normally.  Anyone have any ideas how to fix it when it gets like this or how to prevent it from getting to this state? Driver version 1.1.0.0 Firmware version V2.J27.S6 STM32+STM8 Debugger Paul #stlink

Posted on August 30, 2016 at 10:07Hi, I'm trying to find some code examples I can run though using the STM8L152C6 micro. I'm new to this so I wanted some proven code I can step though and make sure I understand all of the commands, can anyone point me in the right direction please? cheers

Posted on April 08, 2016 at 17:04Hello everyone!Currently I'm switching from an Atmel ATTiny to a STM8 microcontroller and so I'm evaluating different IDEs and compilers. I started with a combination of the ST Visual Development and the COSMIC STM8 Compiler (Cosmic CXSTM8 Special Edition 4.4.4). So far, it worked quite nice. I migrated the ATTiny code step by step to the STM environment. I always used both, the Debug builds and Release builds on my target. But at one point, there seems to be a limit to the Release build:Running Linkerclnk -l''C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Lib''  -o Release\stm8s003.sm8 Release\stm8s003.lkf #error clnk Release\stm8s003. segment .text size overflow (164) The command: ''clnk -l''C:\Program Files (x86)\COSMIC\FSE_Compilers\CX

Posted on August 22, 2016 at 19:12Greetings,    I am using an STM8L and I'm trying to use the ADC.  I'm trying to continuously sample 2 channels and use DMA to transfer the results.  Everything is working fine with one exception.  After about 10 samples or so, it seems like it skips a channel, so that I get 2 samples in a row from the same channel.  After that the samples continue normally, but they are now in the reverse order.  I assume this is a synchronization problem between the ADC and DMA peripherals.  Has anyone else seen such a thing?  Is there a fix? #stm8l-adc-dma-channel-order

Posted on February 02, 2016 at 23:22I am using the STM8S103K3.  The data specifies power consumption only with all inputs at the rail voltage.  Also the data sheet says to ''turn off schmitt input'' on adc input to save power.  These things imply that excess power is consumed by digital inputs when not at the supply rails. My PWM outputs are tied to Vcc/2. When I turn them off how much power will be consumed by the input being at Vcc/2.  If I drive the output to one of the rails this will also consume power.  So I have to choose one or the other ... or add circuitry.

Posted on August 13, 2016 at 12:55I am working on STM8S003K3 microcontroller. I need to calculate time duration between two pulses. One high pulse (1) and another low pulse (0). The pulses will be created using switch. Approximate time duration would range from 10sec to 200sec. How to do this? Any help? #pulse-counter #stm8

Posted on June 15, 2016 at 10:18A comparison of the 4 most important C implementations for the STM8 can be found at:http://colecovision.eu/stm8/compilers.shtml It uses the current (mid 2016) versions of all 4 compilers. Only aspects of the C implementation itself are compared (i.e. other aspects such as IDE integration are not). Here's the summary table from the comparison: Standard Compliance Code Speed Code Size OS Support License Cosmic - o o - o SDCC + - - + + Raisonance - o + - - IAR + + - - - Philipp #cosmic-c-stvd-test

Posted on August 11, 2016 at 16:41First, i,m sorry for my bad in English.How do i measure machine clock [STM8S103K3 : STVD+COSMIC_C]now.. i config TIM1..  ENABLEbut CNT bit of TIM1 is strange..value's value are..  1000 , next line 24001 ,next line 64000  i think, it very strange @_@!If i want to know Timing Measurementor Machine Clock (How many cycles used in 1 function)How do i config STVD or COSMIC_CThank you very much^__^! #stm8s-machine-clock-cycle

Posted on August 09, 2016 at 01:34Hi,I am wondering if there is a sleep mode for the ADC for the STM8S003f3 processor.I want the processor to sleep until ADC_CSR_EOC = 1 or sleep while ADC_CSR_EOC = 0I did see a WEI but I believe it is only for the STM8L series. Thanks #adc-sleep-mode

Posted on August 08, 2016 at 12:00Hello ST folks, I found a small error in your pdf. STM8L151x2, STM8L151x3 (DM00027749) ver : DocID018780 Rev 7 page 30, for LQFP48 pin ''35'' is missing. There should really be a ''35'' there I think. I was trying to redraw the entire package in schematics, and found it missing. Did i win any prize? (Nah i'm joking) #stm8l151cxmissingpin

Posted on July 30, 2016 at 01:54I'm sorry for my bad in English.[STVD + COSMIC_C : STM8S103K3]I want to use prototype function which need EXECUTION_FROM_RAM.after i  build.. It ERROR..!!help me please..  T_T!// ------------------------ below.. is stm8s_flash.c (stm8s.. StdLib) -------------------------------//Steps of the execution from RAM differs from one toolchain to another: - For Cosmic Compiler:    1- Define a segment FLASH_CODE by the mean of '' &sharppragma section (FLASH_CODE)''.    This segment is defined in the stm8s_flash.c file.  2- Uncomment the ''&sharpdefine RAM_EXECUTION  (1)'' line in the stm8s.h file,    or define it in Cosmic compiler preprocessor to enable the FLASH_CODE segment   definition.  3- In STVD Select Project\Settings\L

Posted on July 20, 2016 at 13:19ST marketing materials put STM8 Dhrystone performance at 0.29 DMIPS / Mhz. However, when actually compiling the Dhrystone benchmark with different C compilers optimizing for speed, the picture is a bit different: Raisonance is at 0.289 DMIPS / Mhz and Cosmic at 0.296 DMIPS / Mhz, both very close to the 0.29 DMIPS / Mhz stated by ST. IAR outperforms them, and achieves 0.347 DMIPS / Mhz. All these numbers are from the comparison at http://colecovision.eu/stm8/compilers.shtml, which uses mid-2016 compiler releases. SDCC used to perform worse at Dhrystone: SDCC 3.5.0 from last year only achieves 0.151 DMIPS / Mhz. SDCC 3.6.0 was released on the 12th of June 2016 and improves this to 0.167 DMIPS / Mhz, still far worse than the other compilers. But cur

Posted on July 14, 2016 at 14:09Hi I am prashant. I am using stm8s microcontroller with uart2 . First thing is that when i am using uart explicitly without configure the clock to 16Mhz ( HSI clock), uart throwing the garbage values. Secondly when i configure the clock to HSI(16Mhz) , program gets blocked to wait for the TXE bit (UART2_FLAG_TXE)  to set forever. It happens only when i configure the system clock to HSI otherwise throw the garbage value.I am posting my code below.&sharpinclude ''stm8s_uart2.h''&sharpinclude ''stm8s_clk.h''void clk_config(){  //CLK_DeInit();  //CLK_HSICmd(ENABLE);  CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);}void uart_config(){  UART2_DeInit();  UART2_Init(9600, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, UART2_PARITY_NO, UART2_S

Posted on July 11, 2016 at 04:15Document doesn't mention that I should not.But I'm still wondering. Help me out, thanks. #stm8s

Posted on June 17, 2016 at 15:40Hi all,I am working on STM8 bootloader configuration.Can anyone please provide a link for STM8 visual programmer software and how to use it for unlocking the unlocking the STM8 bootloader.Thanks in advanceAmit Kumaramitkrv22@outlook.com #can #stm8-bootloader

Posted on July 01, 2016 at 13:17my fCPU is16MHz. In order to get 500K baudrate, I have programmed as follows: CAN_SynJumpWidth = CAN_SynJumpWidth_1TimeQuantum;  CAN_BitSeg1 = CAN_BitSeg1_8TimeQuantum ;  CAN_BitSeg2 = CAN_BitSeg2_7TimeQuantum;  CAN_Prescaler = 2; On the other end, I use CANOE to view the transmitted messages, which is also configured to the same baud rate. But when I check the transmission status, the messages are still in the mailbox. It works in the loopback mode. What could I be missing? Thanks #bxcan #stm8/128

Posted on June 13, 2016 at 09:18Dear All,I use  <<STM8S_TouchSensing_Lib_V2.5.0_setup.exe>> to build one testing system of STM8S RC Touchsensing. it has four ''buttons'' and four LEDs. for every ''button'', it can works well for touching. once the hand touch the ''button'', the corresponding LED is on. once release hand, LED is off. this is good.But, just one LED works for multi-Touching. I am thinking how to get multi-LEDs be ON at the same time. that's to say, how to make multi-Touches work at the same time? for example, when one button is touched, one LED is ON. when two buttons are touched, two LEDs are ON. when four buttons are touched, four LEDs are ON. how can I realize this function?During my test, I found when the hand is touching button A, the LED A is ON. don't release hand and touch another button, LED A will keep ON until the hand release from button A. before releasing th

Posted on June 29, 2016 at 04:57Hi All   I am new to stm32 nucleo board, the pins on morpho connector are I/O pin? Or they are used to connect to expansion board only?thanksfrom Peter