VREFINT, Temperature sensor always returns 4095 value (STM32F3 Discovery board)
Posted on May 01, 2016 at 21:43The original post was too long to process during our migration. Please click on the attachment to read the original post.
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STM32F439 - Undershoot on FMC pins
Posted on April 19, 2016 at 17:38Hello, We are using the STM32F439 in our application.While using the simulation with IBIS model (Hyperlynx), we have discovered undershoots on FMC pins.The voltage in undershoot is about -866mV and the current limit ...
STM32F1 I2C with DMA, processor stays busy during read/write operation
Posted on April 29, 2016 at 05:08Everything is working, just not as I thought it should be. As the logic analyzer shows below, the main loop is interrupted for almost the same amount of time the I2C operation takes. Notes: - I'm using Cube generated...
STM32L4 Discovery CubeMX USB Host Audio callbacks
Posted on May 02, 2016 at 04:09I am using the latest STM32CubeMX (V4.14) and the latest version for the STM32L4 family (version number escapes me right now) and I am trying to understand how to properly use the Discovery board to act as a USB Audio ...
STM32F030 ADC frustration
Posted on October 28, 2015 at 14:57Hello everybody, with this code, no matter what I do, I always get 4095 (max). I've tried looking at Clive examples or IAR's examples I just can't see it. Could someone take a look and see what am I missing. I need...
Issues with composite VCP+MSC: VCP not working
Posted on May 01, 2016 at 17:49Hello, I am stuck in implementing USB composite (VCP+MSC) using FS-Device_Lib_V4.0.0 (STM32L151). Individually both works but when I try composite VCP+MSC, MSC works well but PC can't communicate via VCP (although it c...
CubeMx STM32F4 feature request implement critical section
Posted on May 01, 2016 at 17:49Hello ST team, I like to see a critical section implementation similar to atmel avrlib ATOMIC_BLOCK implementation. example: ATOMIC_BLOCK(5) { uint8_t status get_spi_device_info(); if(status == 0) return; d...
grid connected inverter code problems
Posted on April 30, 2016 at 16:27 hi I have problem with adc sampling and controller calculating at each period of sampling(each sampling time) .I fond this from st,com . I have some questions : 1.what is the meaning of first line exactly an...
Can't make the ADC run on stm32f4-discovery
Posted on April 28, 2016 at 16:45I have a stm32f4-discovery with the stm32f407vg uC on it and I'm trying to program the ADC1 and measure some signals on the port PC7 with it. According to the documentation PC7 hangs on the ADC12_IN15 which I'm inter...
Understanding the difference between USART and SPI controllers
Posted on April 28, 2016 at 15:16Hi, we are surveying microcontrollers for a new product where we need at least 2 SPI interfaces and 2 uart interfaces. All of these 4 interfaces will have to be able to operate concurrently.I have some trouble unders...
