STM32 MCUs Products

STM32L0 LPUART not wakeup on stop mode

Hello everyone,I'm working on a project with an STM32L072CBT6.In my project, i use a LPUART1 and USART1 to send and receive data. Connected to this i use a DMA to get data.My projet works fine so i try to implement stop mode to reduce consumption.In ...

Typos in the STM32L0x3 RM0367 Reference manual RM0367 Rev 8?

p.177: Figure 17. Clock tree includes "LSU", "LSD", "LSD", and "LSD" signals between the @V33 block and @V18 block. "LSU" is not included in the figure's abbreviations Legend. It also looks like the first "LSD" should rather be "LSE", the second "LSD...

Typos in the STM32L073x8 STM32L073xB STM32L073xZ datasheet DS10685 Rev 7

p.14: Figure 1. The "DAC2-->OUT1" connection should rather be "DAC2 --> OUT2", or better still "DAC1 --> DAC_OUT1" and "DAC2 --> DAC2_OUT".p.24: Section 3.5 Clock management, the System clock source bullet mentions "Three different clock sources..." ...

Typos in the STM32L072x8 STM32L072xB STM32L072xZ datasheet DS10689 Rev 5

p.13: Figure 1. The "DAC2-->OUT1" connection should rather be "DAC2-->OUT2", or better still "DAC2-->DAC2_OUT".p. 14: Section 2.2 Ultra-low-power device continuum description includes "LCD drivers" in the list of built-in features.p.23: Section 3.5 C...

HAL_I2C_Master_Receive_IT does not change the value of buffer even though I got HAL_OK from this function

How to reduce the time between SPI (DMA) transactions

I need to transfer a large amount of bits over SPI de-asserting/asserting the select line very 64 bits. I'm using DMA. The time between transmissions is huge, as can be seen below:The pink channel is SCK, each chunk is 64 bits. The code is below:whil...

Recovering from a failed I2C transfer

I am using HAL_I2C_Master_Transmit(). That generally works well. However, I sometimes run into an issue when the slave device is not responding. HAL_I2C_MasterTransmit() obviously returns an error after running into timeout, as it should. But then I ...

Is it possible to use the SAI peripheral with the data line only - SD_A or SD_B (without outputting the peripheral clock signal) when using the "free protocol" mode for a single-wire communication purposes?

Dear STM32 MCUs community,I am currently working on a project with the STM32l452RET6 MCU with a goal to use the SAI peripheral for one-directional single wire communication purposes, so only the "data line" (SD_A or SD_B) will be outputted using the ...