Forum Posts
Uart DMA RX problem
Hi there !I use uart with DMA for receive data from (right now) pc and STM32F051 discovery board, everythingh work bettere if i send all data, but if i send less data stop the work . Let me explain i need the send 180 bytes from pc to discovery boa...
We are using this ic STM32F103VET6 and Oscillation of 8 MHz Crystal with through capacitor of 22pf i am not getting the Oscillation from the microcontroller ?
We have two same design Board, one is fabricated in last year, another one is this year fabricated boards and i loaded same code for both boards.Achivally this year what i fabricated with little changes on the Connector side and we are used buffer ic...
[SOLVED] STM32F103c8t6 (aka blue pill) i2c with AM2320: HAL_I2C_IsDeviceReady() always returns an error.
So I've been trying for a while to get the I2C1 peripheral working for communicating with the AM2320 humidity/temperature sensor but for some reasons I have not yet broken down, it never seems to reach it. I used CubeMX to initialize the peripherals ...
Changing data advertisement frequency on BlueNRG DK example
Hello, I am using the example code BLE_Throughput from the BlueNRG-2 DK to program a PCB. The example is working fine but the frequency of advertisements is too high for what I need and I could not find in the code where can I change it. Could someon...
CAN mystery. Receiving messages but not able to send
Hi.I have a program that sometimes fails to send data on CAN but still receives them correctly.This is on an STM32L462 using 1.4.2 IDE and latest API.For some unknown reasons, at one moment, out mailboxes never empty. It can be anytime from right upo...
STM32H745 Maximal performance configuration
I'm working in a project that involve a thermal camera image processing.I need to process a buffer of 384*288 (16bits) in fastest way possible.I'm using the 480Mhz VCO template to set the procesor in 400Mhz (Cache enabled).I already did some code op...
exporting Keil debugger values from registers to PC without UART
HelloWhen debugging, I obviously use ST-Link and Keil displays register values for meCan I export these values somehow without having to transmit them over UART?I need these values for later graphing in python and UART would just take unnecessary scr...
STM32F413 - Delay at the end of UART transmit
Hello,I am encountering an issue with the STM32F413 MCU: when transmitting data over UART, there is a short delay between the stop bit of one byte and the start bit of the next byte when transmitting data one byte at a time. I compared the behavior o...
Resolved! q15 fixed point 1.15 9.7 etc
HelloI was wondering about nubering in q15 fixed pointI am guessing that in 1.15, 1 (msb) is responsible for sign and 15 bits are for magnitude(I could be wrong)However what does 9.7 mean ? does it mean 9 bits are for whole numbers and 7 bits represe...
