STM8 MCUs

Posted on May 14, 2017 at 21:52Hello,I want to create program that:1. Measure time2. Start one conversion of ADC3. After conversion show it on LCD (it's optional, but it would be great if it works)The 2nd point is problematic. I want to realize all on interrupts and my program doesn't jump into adc int handling.Here is a ADC configuration:void ADC_Periph_Init(void){  CLK->PCKENR2|=0x01; //adc clock en  ADC1->CR1|=0x01;  //adc ADON  ADC1->SQR[0]|=0x81;  //select channel 24, DMA disable for single conversion  GPIOF->DDR&=0xFE;  GPIOF->CR1&=0xFE;  GPIOF->CR2&=0xFE;  //gpio for adc configutation for PF0  ADC1->CR1|=0x68;   //resolution, single conversion, enable interrupt end of conversion  ADC1->CR2&=0x78; //sample time, PRESC=0&nbsp

Posted on April 30, 2017 at 19:48I'm using the STM8S-Discovery template in STVD. How can I change the name of a project?

Posted on May 12, 2017 at 10:39Hi;As you seen above, Libraries List is unselectable. İ want to change them manually. Why is Libraries List unselectable?

Posted on May 10, 2017 at 21:29Hello,My team and I are designing a product using the STM8S003F3. We connect to a host controller using SPI. This works great!Now I want to enable firmware update functionality. I started to get into SWIM protocol when I began to notice perhaps SPI can handle this as well. I can't seem to find which bootloader version is used in this chip to verify. I'm thinking this is because the chip doesn't feature a bootloader?If that's the case will SWIM still be suitable?#bootloader #swim-stm8 #firmare-update

Posted on October 27, 2016 at 14:45Hi ,We have a requirement to capture the PWM input at Timer2 channel 1.We are using STM8AF6266 micro.Requirement:We have to capture 2 PWM inputs received at Timer2 channel 1.1) Falling edge 100 - 0 % 200Hz signal in 1sec.2) Rising edge 0 - 100 % 200Hz signal in 1sec.Based on this inputs captured We have to update PWM output duty cycle from a) 0-100% 200Hz signal in 1 sec (Dimmer ON ) for case 1 input capturedb) 100 - 0% 200Hz signal in 1 sec (Dimmer OFF ) for case 2 input captured.I have refered to the example code of STM8 and I am not able to meet the requirement  with reference to the sample/example code.Can anyone help me on this. Please let me know if you have any quires related to it.Thanks,

Posted on May 10, 2017 at 22:22Sometimes function returns RESET then Pin state is SET (corresponding bit in IDR register is '1').Example. The condition - if (GPIO_ReadInputPin(GPIOx, GPIO_PIN_X) == SET) {some code} else {some code} - not working correctly (returns that Pin is always in RESET state).Not dependent from Port and Pin. In some cases always work correct, in another cases always not correct.I addressed directly to IDR register to retrieve the correct Pin value.I used old school method to read Pin value - (GPIOX->IDR & GPIO_PIN_X).The condition in that case looks like this - if ((GPIOX->IDR & GPIO_PIN_X) == 0) or if ((GPIOX->IDR & GPIO_PIN_X) != 0).Only == 0 or != 0 works correctly, not == SET or == RESET.MCU type - STM8S003F3.

Posted on November 01, 2016 at 18:44hello everyonebeen playing with that mcu for a while but I cant set up UART IRQ DR(data register) emptyIO pins interrupts work as expected but after setting TIEN in CR2 function enableInterrupts() freezes whole chip and ISR is never hit it just hangs on that functionmy code:ISR(UART1_T_TXE_vector){  PD_ODR ^= 1<<3;}int main( void ){  UART1_CR1_.M = 1;//9 bit data inc parity bit  UART1_CR3 |= 0x20;//2 stop bits    UART1_BRR2 = (u8)0x02;//baud setting 9600 at 16MHz   UART1_BRR1 = (u8)0x68;    UART1_CR1_.PCEN = 1;//parity check enable    UART1_CR1_.PS = 0;//even parity  UART1_CR2_.TEN = 1;//TX enable  //UART1_CR2_.TIEN = 1;//DR empty IRQ enable  UART1_CR2_.REN = 1;//RX enable &nbs

Posted on May 10, 2017 at 18:25I use the IAR embedded workbench IDE (version 2.20.2)I have to change  the project from STM8S003 to STM8AF6223.in the project options i have set the correct device and added the file stm8s_tim5.c and deleted the file stm8s_tim2.cin the actual used library STM8S_StdPeriph_Driver I have uncommented the line&sharpdefine STM8AF626x */    /*!< STM8A Medium density devices */to switch from STM8S003 to the medium density devices (STM8AF622x/4x)compiling the project returns a lot of errors related to TIM5.where can I get the actual release of the needed driver library for the STM8AF6223 ?thanks for your response!#stdperiph_driver #iar-embedded-workbench #stm8af6223

Posted on May 08, 2017 at 06:40 which function will use for changing direction of bldc motor, changing speed up to constant value using pot in both direction when speed is zero??   #bldc-motor-control

Posted on April 24, 2017 at 08:39Hi,I have a #I2C setting problem on STM8L101, I am using the ST's ''STM8L10x_StdPeriph_Driver'' library and try to setup the I2C bus to run at standard mode 100KHz (with system clock of 2MHz) for reading a magnetic sensor. Unfortunately, it seems the I2C clock simply does not start properly.  However, if i slow down the I2C clock to 25KHz, the I2C bus becomes working normally and can get data from the magnetic sensor correctly. Below is the program code that I used to configure the I2C interface of STM8L101:====================================================//Initialization of Peripheral and CPU clock   CLK_PeripheralClockConfig(CLK_Peripheral_I2C, ENABLE);     //Activation of I2C_CTR clock   CLK_MasterPrescalerConfig(CLK_MasterPrescaler_HSIDiv8); // System clock (fMaster clock) is 2MHz  // Setup I2C pin => PC0 = S

Posted on April 27, 2017 at 17:36Hi, Is there any differences in ST-Link programmers? I mean STM8S-Discovery board and stand-alone ST-Link. Does stand-alone programmer work faster?Best regards,Hubert

Posted on April 26, 2017 at 13:58Hi,I've been trying to connect my application through ST-LINK according to the http://www.st.com/content/ccc/resource/technical/document/user_manual/90/cb/42/ef/2e/53/46/75/CD00060186.pdf/files/CD00060186.pdf/jcr:content/translations/en.CD00060186.pdf, but when I invokeESelectHard('ST-LINK', 'SWIM', FALSE)it returns 0, and CGetLastError provides the following message:File \TOOLS.CNF : No such file or directoryThe file TOOLS.CNF is clearly present in the same directory as the .dll files that I successfully manage to load (eprcore60.dll, dbca60.dll, lef60.dll and file60.dll).What is the policy of s

Posted on April 26, 2017 at 05:13Hello Everyone,I'm new with the STM8 Mcus, and I would like to know how can I validate that the MCU is effectively on low power mode? Can I debug while in low power mode and check some registers? Since the MCU cpu should be off, while in low power mode, how can we effectively check in which low power mode is the MCU?Thanks,Best Regards,Mario.

Posted on April 24, 2017 at 08:32Hi,I have a I2C setting problem on STM8L101, I am using the ST's ''STM8L10x_StdPeriph_Driver'' library and try to setup the I2C bus to run at standard mode 100KHz (with system clock of 2MHz) for reading a magnetic sensor. Unfortunately, it seems the I2C clock simply does not start properly.  However, if i slow down the I2C clock to 25KHz, the I2C bus becomes working normally and can get data from the magnetic sensor correctly. Below is the program code that I used to configure the I2C interface of STM8L101:====================================================//Initialization of Peripheral and CPU clock   CLK_PeripheralClockConfig(CLK_Peripheral_I2C, ENABLE);     //Activation of I2C_CTR clock   CLK_MasterPrescalerConfig(CLK_MasterPrescaler_HSIDiv8); // System clock (fMaster clock) is 2MHz  // Setup I2C pin => PC0 = SD

Posted on April 20, 2017 at 04:51I am using TIM4 to delay 5min,but there is 7.5s fast everytime in The actual test.(Whether changed to HSI(16M/2) or HSE(8M))But there is no problem,when i changed using 16-bit general purpose timers (TIM5) .So,I guess there is some limitations in STM8L052R8T6 8-bit basic timer (TIM4).Please check.#stm8 #timers-tim4 #delay

Posted on April 11, 2017 at 18:00I'm new on stm8 and I would like to start to make new dev using stm8cubeMX.Do you what best free IDE that'll be compatible with stm8cubeMX?Thanks in advance.

Posted on April 18, 2017 at 09:12Hi dear friend Please help me to understand : What condition i have to use output with push pull configurationand what condition i have to use output with open drain configurationThanks#push-pull-output-or-open-drain-output

Posted on April 15, 2017 at 14:44Hello,Here is my code for writing a byte into internal eeprom. Problem is  when -ever  I write a byte to the internal data rom ,its is  written to (address+1)  place into the  rom ...what I  mean to say..is ..if I try to  write some  value say..8 ..at a specific address ..say..0x4021,the value  is written to  the address 0x4022 instead of address 0x4021.  I am readingthe written content in STVP. Am I making  any mistake......any suggestion will be great help to me. Thanks.#include 'STM8S003F3P.h' unsigned int *ptr=(unsigned int *)0X4000; main(){while (1){if(!(FLASH_IAPSR & (1<<3))){                                     &

Posted on April 14, 2017 at 14:29void Menu(void){    if(KeypadStatus == Button_ADD)    {        Display_Filling_Constant(&CONF[0],DISPLAY_1,5);        Display_Filling_Constant(&MENU[0],DISPLAY_2,5);        Display_Filling_Constant(&BLANK[0],DISPLAY_3,6);        Display_Show();        while(KeypadStatus != Button_NOPRESSED );        delay(1000);        Menu_Edit();    } }this is my code.. problem in ' while(KeypadStatus != Button_NOPRESSED );' line.. program cant exit in while loop..!! stuck in while loop.. please find attachment file KeyScan.. here you find the Button_NOPRESSED value..my 'Scan_Sw

Posted on April 12, 2017 at 10:17Hello,I am trying to write value 7 to eeprom data memory area. My code is below../* MAIN.C file *  * Copyright (c) 2002-2005 STMicroelectronics */#include 'STM8S003F3P.h' unsigned int *ptr=(unsigned int *)0X4000; main(){while (1){if(!(FLASH_IAPSR & (1<<3))){                                                        FLASH_DUKR=0XAE;                            FLASH_DUKR=0X56;                    

Posted on April 12, 2017 at 11:01i used _blockcksum160 then we increase code size 32K to 64Kdepends on code size increased;we changed memory model +modsl0 to modsl.We changed library list libislo.sm8;libmo.sm8 to libisl.sm8;libm.sm8We changed startup file crtsi0.sm8 to crtsi.sm8. When we run software, during runtime check. Ä°t fails._block_checksum160() return CRC_ERROR. Then we start to use _block_checksum161() however, it return error;#error clnk Debug\canli.lkf:1 symbol _MSB_RunCrc16Chk not defined (Debug\_block_cksum161.o )#error clnk Debug\canli.lkf:1 symbol _MSB_RunCrc16ChkInv not defined (Debug\_block_cksum161.o ) As i understand that stm8l_stl_classB_var.h ,which sent by ST guys, should update.Where can be get stm8l_stl_classB_var.h file which suit for 64Kstm8l_stl_classB_var.h :#ifdef _COSMIC_

Posted on April 13, 2017 at 10:07can you decribe __ckdesc__?Can i set these adress?

Posted on April 12, 2017 at 09:07The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on April 12, 2017 at 06:26Hello,Does any one have  stm8s003f3p6 eep-rom read and write example code in stvd. How do I assign  dataeeprom  address directly to a pointer variable. unsigned  int *ptr=(unsigned int *)0x4047;   is this OK?? Thanks.

Posted on April 09, 2017 at 08:00Hello every bodyI am new in stm8s003f3  i use iar code limited and stlink/v2I read error swim 30006 and i can't correct it Please help me#swim-error