STM8 MCUs

Hello sirI am use stm8s​ for measuring voltage rms​So i use adc but how to calculate when adc interrupt are coming​I Aattched initiation code in this post​​i try to calculate adc interrupt time but when i measure it is wrong​Plz provide guidance how to calculate adc interrupt time​​

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I am able to send and receive Data by polling method but i am not able to receive.

Hi,here incoming data will be in the below format and on its basis i have done usart initialization for STM8AL3168 on required 9600 baud rate.void USART1_Init(void) { UART_DeInitialization(USART1); // Remap USART1 to Port A SYSCFG_REMAPPinConfig(REMAP_Pin_USART1TxRxPortA, ENABLE); /* Enable USART1 CLOCK */ CLK_PeripheralClockConfig(CLK_Peripheral_USART1, ENABLE); // Configure USART1 I/O pin's GPIO_Init(GPIOA, GPIO_Pin_2, GPIO_Mode_Out_PP_High_Fast) ; // PA2 -> WUC_UART_TX GPIO_Init(GPIOA, GPIO_Pin_3, GPIO_Mode_In_PU_No_IT) ; // PA3 -> WUC_UART_RX // Since there is a 10 k resistor pull-up used in our Circuit GPIO_ExternalPullUpConfig(GPIOA, GPIO_Pin_2, ENABLE); GPIO_ExternalPullUpConfig(GPIOA, GPIO_Pin_3, ENABLE); /* Set the word length bit according to USART_WordLength value */ /* Set the Parity Control bit to USART_Parity value */ USART1->CR1 = 0x14; // word length = 1 Start bit, 9 Data bits, 1 STOP b

First off, I would really like to thank everyone in the community for being so great. Second, I would really like to thank anyone who is willing to take a few minutes to read this post and answer my hopefully quick question. I am having a difficult time finding any code resources that show what assembly instructions to run in an external interrupt service routine after the halt assembly instruction has been run in order to resume normal operation. Thus far I have using a NOP and RIM, but I do not think this is correct. I am making some modifications to existing code and I cannot program the actual board at the moment due to the lack of a programming interface board, However here are the details. I am using the COSMIC compiler for a STM8S103F3P. I have an external interrupt service routine defined in the stm8_interrupt_vecor implementation and I have that service routine assigned to IRQ3 (PA2 is connected to a switch that gets grounded when de-pressed, and otherwise is

Hy Guys,It is possible to use a STM8S208C6 microcontroller to use in conjunction with NFC / RFID M24SR64. Because I can not find any example software code for application for microcontrollers STM8S for NFC M24SR.

Page 12 of the STM8AF52xx STM8AF62xx Errata sheet mentions the power rise rate problem. the original written to : Nevertheless, we observed that Some very specific applications could have a VDD starting from a residual voltage already Above 0V and thus require that we explicitly specify these conditions. The tVDD parameter must stay below 50μs/V when VDD is rising from 100mV to 1V. What I want to ask is, what does 'very specific applications' mean? In the power drop test, vdd drops to 0.1v and then rises, which is very easy to happen.According to the Errata sheet, vdd must rise very quickly. Normal DCDC devices do not have such high rise speeds.   In my system, it took 1ms for vdd to rise from 0V to 3.3V, and I used an external reset IC. I need to know, this bug of stm8af5288, how much problem will it bring?

Hi all,I'm a beginner with the STM8 microcontrollers and for my first tests I'm using STVD and Cosmic C compiler.I'm quite familiar with Eclipse and I'd like to use that IDE. Is there anyone experienced in programming and debugging STM8 with Eclipse and Cosmic C? Surfing on the internet, I found some people that use Eclipse + SDCC, but I read that SDCC produces less optimized code respect to Cosmic. So, my idea is to use Eclipse + Cosmic C. Is it possible? Can you help me?Many thanks!Best regards,Alessio

Hello guys, last one week i've been trying to communicate between my mcu and a canbus generator. I couldnt receive that transmitted 8byte codes by my canbus generator. Here are my codes about it. Can anyone help me to understand this ? #include "main.h" uint8_t alinan_deger; // the value taken from DATA void main(void) { GPIO_Init (GPIOD, (GPIO_Pin_TypeDef)GPIO_PIN_2, GPIO_MODE_OUT_OD_LOW_FAST); CAN_TxStatus_TypeDef status ; CAN_Id_TypeDef Tx_IDE = CAN_Id_Standard; CAN_RTR_TypeDef Tx_RTR = CAN_RTR_Data; uint8_t Tx_DLC = 0; uint32_t Tx_Id = 0; uint8_t Tx_Data[8] = {0}; enableInterrupts(); while(1) { /* Transmit Parameters*/ Tx_Id = 0x222; Tx_IDE = CAN_Id_Standard; Tx_RTR = CAN_RTR_Data; Tx_DLC = 1; Tx_Data[0] = alinan_deger; /* Sender send Frame */ status = CAN_Transmit(Tx_Id,Tx_IDE,Tx_RTR,Tx_DLC,Tx_Data); if(alinan_deger==0x11) { GPIO_WriteHigh( GPIOD, GPIO_PIN_2 ); } else GPIO_WriteHigh (GPIOD, GPIO_PIN_3); } } void CLK_Config

I have been using ST Visual Developer version 4.3.12 for weeks. Today it started crashing when I begin a debug session. I am running Windows 7 Ultimate. There was a system update for Windows Defender completed today (Definition 1/295.207.0) as well as one on 6/4 (Definition 1/295.12.0).I have attached my stvd_pm.log file. I shows that stvdebug.exe caused an access violation.Any ideas?I have tried deleting the wdb and wed files - no help. STVD still crashes after only a few session. It does not crash every time I start the debugger.

 I have a legacy design with a STM8L052C6 MCU. There is a 4x3 matrix keypad. I am trying to drive the Rows and scan the columns. The C1 port only rises to about 0.5V when I set the pin HIGH. Is there something I am missing.There are three ports set as PP_HIGH_FAST outputs (Ports A3 and E7 work as expected. Port C1 exhibits the 0.5V high. VDD is 3V. There is a 510K resistor pull up on this pin in the design that is not on the other pins. I am recreating the source code for the board and am not sure why the resistor is there or why I can't get C1 to go full high. I have tried OD as well as the SLOW options. BTW what is the difference between the LOW and HIGH options in the peripheral driver GPIO_Mode_TypeDef options.// Matrix Keypad Scanner Drivers#define KP_ROW1_PORT               GPIOA#define KP_ROW1_PIN      &nbs

Hi all,I am using the stm8l152c6 discovery board which has one user button.I would like to implement that the button pressed once, blink the led, when pressed twice, the led off, also button pressed for 5 sec or less than 5 sec, do somthing.Please assist or where can I find the relevant information?

Hi trying to reduce the current consumption in STM8L151F2 series controller in HALT modebut unable to achieve the 0.4uA current rating as mentioned in datasheet, also want to make the automatically shift the MCU on HSC, but it is not happening, as my external source can give clock of 2MHz for 10ms & goes for sleep itself for remaining 1secplease find the attached source code for the samelet me know , if any one having solution on the same

STM8S207, using  uart 1, uart 3 at the same time, will occasionally crash and restart, do not know why, can help guide, See the appendix for the serial port program. thank you!

I have placed the license file in this location C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\License

I want to implement the I2C source code for stm8L001j3m3 this Micro controller. But i am not able to get the source code. Please some one provide me the source code of that (or link).Thank you

Hello, I'm working on a project using STVD and the COSMIC FSE compiler to program a stm8s207 processor and having trouble assigning large values to a uint32_t or unsinged int variable. I follow different syntax but they all yield the same result. These are my variables. uint32_t x = (01020303uL); uint32_t a = (21020303uL); uint32_t b = (65535uL); uint32_t c = (65537uL);When I run the debugger and watch the values for this variables this is what I get. x 2666496a 26802b 838861344c 33883905What could I be missing in my program or project properties in order to get this to work?

Hi all,I started to develop a small console application in C++ , based on the following document : https://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.pdfI just copied the code from this document to my project with few modifications and everything works fine, until a DLL calls the "long CALLBACK AppendErrorText(const char* szMsg)" function with the following message :"Cannot communicate with the tool.Wrong tool selection or check tool power supply or check that a previous session is closed."The ELoadFile(fileStr, iAreaId) function causes a dll to call one other callback with th

Hi !I already had some checksum problems with older versions of COSMIC. They have been fixed by COSMIC.btw; Do not set breakpoints inside code while running checksum functions...Now I have a new issue:STM8S207SB with modsl setting.I like to use one of ​the build-in checksum functions. According to the manual, the section .cksum is inserted in linker settings. I use _checksum16(). It works as expected.But:If you insert a const section like#pragma section const {version}... a part of the regular const area will be split and inserted into THIS section.So now I have 11 bytes as my const vars in this section PLUS more than 200 bytes from "normal" const section according to the map file.What happens now is, that the checksum area does NOT start behind my 11 bytes const values. Instead it starts 238 bytes behind 0x8080. This means that a part of the const area is NOT covered by checks

#error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8\modsl0.h:1 FlexLM No such feature exists.i am using FSE_Compiler.How can I fix this problem?

I am using STM8L Discovery board, and want to communicate with external memory and humidity sensor which requires I2C protocol for communication.I am using STM8l15x standard peripheral library, but unable to communicate. I found the following problems while debug: If not connecting any pull-up resistor, not getting acknowledgment from slave device and getting stuck in while((I2C1->SR1 & I2C_SR1_ADDR) == 0) loop If connecting pull-up resistor on both SDA and SCL (1k and 4.7K tried), unable to generate start condition.Please help me out how can I resolve it?Thank you so much in advance.

HiI am using stm8s103 controller and stlink programmer on Ubuntu.I have configured the system with SDCC for STM8S controller. I am getting following error while writing binary in flash. Following is the error i am getting,Determine FLASH area Due to its file extension (or lack thereof), "blink.ihx" is considered as INTEL HEX format! 245 bytes at 0x8000... Tries exceededLooks like programmer is not able to flash...any help will be appreciated.

i have attached image of error.