STM8 MCUs

Discuss STM8 microcontrollers, including SWIM, USART configurations, RTC usage, ADC issues, and debugging.

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How to detect external reset reason through NRST in stm8?

Hello all. There are 9 sources of reset possible in STM8AF52xx according to the reference manual.They are :External reset through the NRST pin• Power-on reset (POR)• Brown-out Reset (BOR)• Independent watchdog reset (IWDG)• Window watchdog reset (WWD...

raja1 by Associate II
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Resolved! STM8S105 UART (async), data frame with 1 unknown bit after 2 stop bits

I am analyzing the UART data frame of an outsourced device that uses the STM8S105 MCU. The data frame specification is:* 1 start bit,* 8 data bits, * 1 parity bit,* 2 stop bits.Therefore I expect a data frame as in the below Figure 115 from the STM8 ...

_legacyfs_online_stmicro_images_0693W00000binIeQAI.png _legacyfs_online_stmicro_images_0693W00000binHvQAI.png
Kmax18 by Senior II
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Why is my uart rx not working?

Code shown in details. I am guessing something is wrong with clocks - this doesn't make sense though since tx is working just fine. I see signals just fine on the scope. Both tx and rx are high during no transmit. Clocks and initialization code shown...

DBles.1 by Associate II
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