STM32 MCUs Products

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STM32L051 TIM21 trigger output issue

Hi,Using the following code, ADC can be triggered by TIM22 successfully./** * @fn static void ADC_Config(void) * * @brief ADC configuration. */ static void ADC_Config(void) { /* Enable clock */ RCC->AHBENR |= RCC_AHBENR_DMAEN; RCC-...

Resolved! RAM not getting written before reset on stm32f769n

I am working on a hard fault handler were I want to store some key values into ram before resetting. This data will then be further handled at next boot up.My problem is that the data does not get written into RAM unless I step through the writing co...

[STM32F4xx] Only 16 GPIO under control?

The STM32F4xx reference manual (RM0090) specifies under the GPIO main features section that there are "up to 16 I/Os under control" - does this mean I cannot control more than 16 GPIO pins or am I interpreting this incorrectly?

hjm by Associate II
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Issue while recording audio with SAI interface ?

Hi ,I'm doing an audio recording with the SAI interface of the STM32L4R9AI microcontroller.I'm using DMA in circular mode and I'm getting audio data which I wrote into SD memory.However, when I tried to open the recorded file , I hear my audio speec...

STM32L452 QUAD SPI - wrong address on bus

Posted on January 16, 2018 at 11:32Hello,I use STM32L452 QUAd SPI for communicate with Winbond w25n01g NAND Flash.My init code ispage = 0x30;  /* Initialize the read command */  sCommand.InstructionMode   = QSPI_INSTRUCTION_1_LINE;  sCommand.Instruc...

Alex Mach by Associate III
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Linker file with SBSFU

We have our application running with the SBSFU feature and are not sure if our linker files are designed correctly. In our application linker file, the CCMRAM is used :/* Entry Point */ ENTRY(Reset_Handler)   /* Specify the memory areas */ MEMORY { r...

Remote Firmware Update on B-L475E-IOT01

Posted on March 13, 2018 at 02:31HelloI have the STM32L475 IoT node discovery kit which is advertised as having support for remote firmware upgrade (RFU) via the AWS cloud demo project.I am using System Workbench and am reading in UM2178 section 5.7...

Resolved! I2C does not work - no data on I2C pin

Hello, I have a problem to communicate with 24LC02B memory. If I look with the logic analyzer, no data on CLK and DATA pins. Here is my code. What is wrong?Thank you#define I2C1_DEVICE_ADDRESS 0x50 #define MEMORY_ADDRESS 0x08 uint8_t xBuffer...