STM8 MCUs

i feel there should be setting for compiling larger code using full memory (64kb) and using the full 6kb ram. Can anyone guide please

Hello Every one ,I am trying to use I2c based LCD with stm8s003f3 controller. the write i2c address is 0x3f I am struck at a point ,the code is stopped in endless loop in below functionvoid PCF8574_write(unsigned char data_byte){  I2C_GenerateSTART(ENABLE);  while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));    I2C_Send7bitAddress(PCF8574_address, I2C_DIRECTION_TX);   while(!I2C_CheckEvent(I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));    I2C_SendData(data_byte);  while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED));    I2C_GenerateSTOP(ENABLE);  } When i have debbuge the above function i saw that it was getting I2C-> SR1 = 0 but it should be 1.clock frequency is 100 KhzI2C address is 0x3F

I have followed the steps to create my lin.lib file from my LDF, but I need to add it to a STVD project, not one built with an extrenal makefile. I have tried adding the library to the default compiler path, and tried specifically adding it to the projects .lkf, but main.o is still unable to link to l_sys_init. It seems strange providing a driver with no documentation describing its use with STs own IDE - especially when the release notes list ST Visual Develop in the toolchain...?

The PM0044 for the STM8 MCUs explain that data address space is 16MBytes linear. Ok, so why on the page 19 data address to a RAM memory has 16-bit wide (A15...0)?

Hi everyone,I have the usual file.s19. I can set the 'Option Byte' up using the opportune tab in 'Cosmic'. Now I need to share my file.s19, but I need to share it with option byte already set up.Is there any way to do that?thanks Antonio

Posted on March 06, 2017 at 16:40Hello,Full RC5  decoding code  with  total STVD  project file. Hope you will find it  beneficial for your project.

My stm8l151k4t6 malfunctioned after I detached it from PCB in some heating way and then welded it back to the board. I wonder if the temperature I used to removed and welded the IC is too high. Anyone ever met this situation?

I have been using a STM8S105 successfully for a few months and recently, I have been experiencing problems with i/o on UART2. When I eventually probed the NRST pin I noticed that there is a sawtooth waveform on that pin, with no other circuit connected to the NRST pin.Has anyone seen this before and/or has an idea what is causing this? I am wondering if the MCU is executing bad code and which is causing it to reset - but why a sawtooth?! No watchdog is enabled.

STM8L power (current) consumption problemPosted on August 23, 2011 at 06:42 I'm developing an application with STM8L052R8 MCU now, and this application is battery-used product. The problem is that, I cannot make the MCU consume micro-ampere order current.I used every methods described in the reference guide manual, including active halt mode, and halt mode, but the least current indicator displayed 250uA. Of course I have stoped HSI, LSI, all timers and disabled all interrupts，disconnected other devices. GPIOs are also retested as push-pull low-slow output mode. I'm confusing. /** * @brief Config clock. * @retval None */static void CLK_Config(void){ /* Enables the Internal High Speed oscillator */ CLK_HSICmd(ENABLE); /* Configures the system clock as HSI(16 MHz) */ CLK_SYSCLKSourceConfig(CLK_SYSCLKSourc

I'm trying to measure the duration of a button press using TIM2 as a counter. I have one of the buttons triggering an interrupt which enables the timer on the positive edge, and then calls TIM2_GetCounter() on the negative edge.I'll save you all a bunch of reading my failures (trust me, it wasn't helpful, you're not missing anything) and just post my working TIM2 setup code:void TIM2_setup() { TIM2_DeInit(); TIM2_TimeBaseInit(TIM2_PRESCALER_16, 65535); TIM2_PrescalerConfig(TIM2_PRESCALER_16, TIM2_PSCRELOADMODE_IMMEDIATE); }

Posted on July 13, 2018 at 16:49Nucleo kits for STM8 MCUsDear STM8 fans,Let me inform you, that STMicroelectronics extended hardware tools ecosystem available for STM8 MCUs by introducing two STM8 Nucleo-64 kits: https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-tools/stm8-mcu-eval-tools/stm8-mcu-eval-boards/nucleo-8l152r8.html and https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-tool

Put driver update and firmware update. WIndows reports it as a drive NODE_8L152. a USB drive.ST-Link fails to find and programmer cannot read from the device. The leds are green and green.The jumpers have been verified. The upgrade said it finished. What to know about the software?

What's the max Input Impedance of STM8S001J3? I couldn't find it on its datasheet.I've found a couple of equations in page 11 of AN2752. If I keep slowing down the clock of the ADC, would I be able to increase the maximum input impedance as long as the equations in page 11 of AN2752 is satisfied? Or is there an additional value of maximum limit on the input impedance in addition of the equations there?

I am using STM8AF discovery board for CAN development, I want to configure CAN master to transmit the frames continuously. How to configure it?

Hi, I am getting Trap interrupt in my code. What are the possible reason for trap interrupt?

I no longer compile the code successfully. I got the following error:#error clnk Debug\most_software.lkf:1 segment .bss size overflow (5649) The command: "clnk -l"C:\Program Files (x86)\COSMIC\FSE_Compilers\Lib" Does anybody know how can I solve this issue. I am using STM8S208 microcontoller and programming environment is STVD.

Hi,I have used the STVD software and the Cosmic C compiler for compiling STM8S003F3P microcontroller. But while compiling I get the error unknown file type \hstm8unknown file type +debugunknown file type -pxpunknown file type -nounknown file type -lunknown file type +mods0unknown file type -ppunknown file type -iG:\study\esd\proj\softwares\CXSTM8\Hstm8unknown file type -clDebug\unknown file type -coDebug\ The command: "cxstm8 -i..\softwares\source_include\inc -i..\softwares\en.stsw-stm8069\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc -i..\softwares\cxstm8 -i..\softwares\source_include\inc -i..\softwares\en.stsw-stm8069\stm8s_stdperiph_lib\libraries\stm8s_stdperiph_driver\inc \hstm8 +debug -pxp -no -l +mods0 -pp -iG:\study\esd\proj\softwares\CXSTM8\Hstm8 -clDebug\ -coDebug\ main.c " has failed, the returned value is: 1exit code=1.main.o - 1 error(s), 0 warnin

Posted on April 14, 2017 at 04:55I am using STVP for almost a year without any problem. Recently when I build file, there happens errors as follows:#error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\HSTM8\mods0.h:1 FlexLM Feature has expired.eeprom.c: The command: 'cxstm8 +mods0 -pp -i'C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8'  -clRelease\ -coRelease\ eeprom.c' has failed, the returned value is: 1exit code=1.Please advise how to solve it. It happens for every .c file including the main.cIt never happens before when building a file/files. I cannot use it now.

Posted on May 30, 2018 at 18:02I'm using an STM8L051F3 chip as slave and a STM32L476 as master, but the STM8L refuses to respond, it keeps reporting a SR2->BERR aka busy error.I know the STM32 code is ok as I had two of them working on an I2C link without any problems, but when I use an STM8 as a slave it fails.The clock and data lines look ok on a scope, nice and square. I have compared the signals from 32-32 and 32-8, in the 32-8 the 'ACK' pulse remains high instead of being pulled low.STM8L code pasted below--- I2C setup : ---void Init_I2C(void){ CLK->CKDIVR = 0; // sys clock /1 CLK->PCKENR1 |= 0x08; // enable I2C peripheral clk// Init GPIO for I2C use GPIOC->DDR |= 0x03; // Output mode GPIOC->CR1 &= 0xFC; // Output with Open drain GPIOC->CR2 |= 0x03; // Fast// --- SET BEFORE PE = 1 --- I2C1->TRISER = 2; // Set

Posted on July 26, 2013 at 11:22Hello everybody,I am using a STM8S207R8T6 and I have a problem when trying to program it.I have build my application and click on ''start Debug'' in STVD.There were a previous firmware with ROP enabled, so I choose to disable it and erase flash memory.I managed to start the application but the PC is not automatically set at the beginning of the main function, it is set to 0x3f and I don't know why. If I change manually the PC my application is then running.Until here, it is almost ok.The problem is when I want to program my MCU either using the ''STVD > Tools > Programmer'' or using STVP.I always get the same error message : Programming...OPTION BYTE:> ProgrammingError : Cannot communicate with the device !Check the SWIM cable connection and check all the needed pin connections on the SWIM connector.

Hello everyone, If I need to write a program in c language which prints me the value on a 7 segments display. In my program, in order to change the value that the Output Direction Register contains, do I simply do this ?: PB_ODR=ox60; (this hexadecimal value corresponds to the one on a 7 segments display)Or should I use a pointer towards this register ? Or should I make a bit-wise operation with a mask ? Thanks for helping me.

Has anyone successfully implemented/encrypted data transmission over the CANBUS using an STM8S208? Are there libraries anywhere to assist with this? Thank you.

For example how can the IO pins be set for alternate function mapping to non-default pin. As per datasheet same alternate pin function is mapped to multiple pins. For example USART1_TX is shown to be available on PC3 and also PA2. By programming all GPIO and USART control registers only PC3 is operative. There is some very brief discussion about re-mapping the pins to second or third set of pins by programming option bytes.Is there an example of how this can be done with a specific example ?I am using STM8L052C6 and STM8L152C6 micro on STM8L-DISCOVERY kit.

As the STM8S001J3 MCU has no Reset pin, How do I connect the MCU with ST Link v2 using SWIM pin for debugging?STLink V2   :  STM8s001j3VDD        :     VDDGND        :     GNDSWIM       :    SWIMRESET       :      ?I have left the STLink V2's reset pin free, but Not able to flash the code to MCU and Also not able to enter debug mode in STVD and STVP.I am getting below Error:---------------------------STVP---------------------------Cannot communicate with the device !Check the SWIM cable connection and check all the needed pin connections on the SWIM connector.If the application code uses Swim Disable an

Hello, I am trying to access all the 5 gpio pins out of FIVE Gpio pins I am accessing 4 gpio pinss i.e (PD6/PA1 ,PA3,PC5,PC6).------->Port d and port c are accessing normally but port b is not able to access. ------->As per data sheet if we use swim pin as gpio we should use 5 sec delay in the main function .but is not working.#define PB_ODR     *(unsigned char*)0x5005#define PB_DDR     *(unsigned char*)0x5007#define PB_CR1     *(unsigned char*)0x5008#define PB_IDR     *(unsigned char*)0x5006    //#define WWDG_CR  *(unsigned char*)0x50D1unsigned long int dl;int i;void main() {   for(dl = 0; dl < 500000; dl++);//delay for 5sec   PB_ODR = 0x00; // Turn all pins of port B to low