STM32 MCUs Products
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For I2C master transmission, what is the difference between TXIS interrupt and TXE interrupt?
The I2C ISR register has both TXIS and TXE bit. They are both set when TXDR is empty, and cleared when new data written to TXDR. What is the difference between this 2? Is there any reason I should be using one of them but not the other for master tra...
LL I2C Address Ack Detection
How can I detect (from a master device) when a slave Acknowledges its address on the I2C bus? I can see on my oscilloscope that the slave Acks its address, but I can't figure out how to detect that Ack from the I2C registers on the master. I'm using ...
HAL_I2C_Master_Transmit OR HAL_I2C_Mem_Write
Posted on November 20, 2017 at 16:23Dear all we have stm32f373xx chip.MAX7313 Chip for LEDs. The connection is via I2C interface.We need to ON an LED or group of them depending on some Interrupt.We need to read the value about the LED status stored ...
Bluetooth Audio link from smart phone to external mic and loudspeaker
I want to create a Bluetooth client that will interface via Bluetooth to a smart phone as a host, and input/output analog audio signals to an external (existing) microphone and loudspeaker, respectively.What is the development board configuration (i....
BLUENRG-1 ble gatt connection timeout
Hi!I am using bluenrg-1.i want to know about gatt connection timeout.i don't want to occur gatt timeout.but after 30 sec, aci_gatt_proc_timeout_event is called and process stopeed.can i adjust this time to no limit?BLE_RC example have no timeout, but...
Hardfault exception in STM32F070CB
Posted on July 06, 2018 at 11:24Hi,I am facing hardfault exception while running my application on STM32F070CB which is Cortex M0 based micro controller. The function of this MCU is to Communicate with another on board Cortex A5 based MPU via UART a...
UART Overrun Error
Posted on February 11, 2018 at 13:19HelloI am using a stm32f103rct6 microcontroller and I want to transmit and receive large size packets of data simultaneously and continuously. For this goal, I used HAL driver and UART and DMA peripherals.When I r...
stm32f429 freertos fatfs with sdio and dma
Posted on September 09, 2017 at 13:11I use the cubemx to create the project(cubemx 4.22 and stm32CubeF4 1.16),it always occurs FIFO Error Interrupt,when I use dma to write sdio. And It stopes.,when write serveral times.But there is no sdio error int...
Problem writing to I2C EEPROM with STM HAL library function HAL_I2C_Mem_Write()
Posted on December 15, 2017 at 00:00Hello, I have a STM32F746 CPU exchanging data with a 24AA16H 16K I2Câ„¢ Serial EEPROM thru stm32f7xx_hall library functions HAL_I2C_Mem_Write() and HAL_I2C_Mem_Read().I see this weird issue writing to the memory: ...
