Resolved! Marking STM8L151F3U6TR
Hi, I have bought the parts STM8L151F3U6TR. The marking indicated in datasheet is L526. However, marking on component is L536. Anyone can confirm this marking of L536 is correct?
STM8 MCUs
Discuss STM8 microcontrollers, including SWIM, USART configurations, RTC usage, ADC issues, and debugging.
Forum Posts
Unknown TSSOP-20 chip identification
Hi all.I'm struggling with certain device and I'd like to identify unknown TSSOP-20 chip on the PCB. Chip must be an MCU and based on the pinout it's very close to some STM8, eg. STM8AF6213. There are VCC and GND connected to Pin 9 and 7 respectively...
IWDG STM8
Hello,STM8S208RB microcontroller, Independent watchdog (IWDG). After starting the watchdog timer (command KEY_ENABLE value = 0xCC), I understand that the watchdog timer stops after resetting the microcontroller. The default register state is undefine...
My first ever PCB design. Any comments? Tips or tricks?
Hello stm community. I am designing my first ever PCB board and i need some comments of yours. Here is the screenshots of the pcb schematic and pcb itself. Do you see any mistakes etc? Also I am not sure about the VCAP connection. Is it correctly mad...
STM8S005K6T6 needs working within 10ms
Hello everyone!I have a question and seek your help: I use STM8S005K6T6 microcontroller and cc1101 RF transceiver module, and the operation at 433 MHz is affected. It generates power automatically and can only last for 10ms. The voltage remains at...
STM8L101F2 consumption in Halt mode
Hi,i have STM8L101F2 at breadboard. Decoupling capacitors 100nF+22uF, supply voltage 3.3V from linear lab.power supply, nothing connected to any pin. Simple firmware (Cosmic compiler)void main(void){ GPIO_Init(GPIOA, GPIO_Pin_All,GPIO_Mode_In_PU_No...
Resolved! How STM8S001J3 use BOR function?
Hello. I am using the STM8S001J3 MCU. I want to use the reset function in my MCU. stm8 has a total of 9 Reset functions.●External reset through the NRST pin● Power-on reset (POR) and brown-out reset (BOR): During power-on, the POR keeps the device un...
Resolved! AF bit I2C_SR2 register
Hello,STM8S208RB.How can you read the AF bit in the I2C_SR2 register?When I try to read this bit, it is always 0 even if this bit is set to 1 (In debug mode I look at this bit that it is set to 1). For example, the following condition always gives th...
Option bytes - temporary memory unprotection(TMU)
Hello everyone.I am in trouble with the datasheet of STM8AF5288.There are only brief descriptions about TMU in the datasheet.What is the difference between TMU and ROP?How to use TMU?I can't find any documentation.Does anyone have more detailed infor...
stm8s003f3 adc value fluctuation
Hi Everyone,I am measuring an Ac voltage which is biased on 2.5v dc on stm8s003f3. The input is coming from an op-amp. My problem is I am not getting a stable ADC value. there is always 2 3 point ADC fluctuation which ultimately fluctuates the AC vol...