How to check UART baud rate without using BRR register?
Maybe in some register the baud rate is saved?
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STM32F103 (stand-alone, not on "blue pill" board) - ADC uncertainty when reading internal reference (channel 17)?
Problem type - ADC readings excess uncertainty when reading internal reference (channel 17) - got to this point after excess ADC reading uncertainty on device pins, trying to isolate cause.Hardware Details - small 2-layer board (about the size of a L...
I2C master transmit and slave receive functions work. Master receive and slave transmit don't.
//MASTER while (1) { /* USER CODE END WHILE */ ret = HAL_I2C_Master_Transmit(&hi2c1, peripheralNucleoAddress << 1, bufferTx, 1, HAL_MAX_DELAY); if (ret != HAL_OK) { strcpy((char*) bufferTx, "Tx"); HAL_UART_Transmit(&huart2, b...
Resolved! STM32H7 DMA not transferring correct values into TIM15 CCR1 register, why?
Hi everyone, I feel like I am running out of options as to why this is occurring as the RM isn't that accurate to setup DMA + PWM using Timers. The goal is to use TIM15 as a PWM generator running @ 800kHz running until 24 pulses are outputted and the...
Configuring Idle State for Timers
HiI have successfully managed to configure and implement a TIM4 channel 1 as a PWM channel and connect it to DMA. Upon disabling the DMA after a transmit, the output goes high - this was the default and is desired. However, I've taken this further to...
Resolved! Is there a maximum speed with DMA? (F446RE)
Hi, I am using DMA to generate an arbitrary waveform on PIN PA_8 using TIM1_CH1. My HCLK is at 180MHZ, APB2 timer clock at 180 MHz and APB2 peripheral clocks at 90 MHZ.Even though having this clock, when comparing the oscilloscope and the value of AR...
2 bit RTC->DR problem for STM32F767 (corrected title)
I am using STM32F767, unfortunately I have a problem with the DR register area in the RTC. Exactly the problem is with the 10th and 17th bits of this register. Setting "1" means that I am not able to change these bits to "0". Only resetting the BDCR ...
Resolved! STM32G030K6T6 is not programming!
Hello,I'm working on a small scale project. In my earlier design, I've used the STM32F100x series. Now as the STM introduced a new set of controllers, the STM32G series ( which is less in cost and much higher efficiency than STM32F series), I've migr...
How to use printf() to output to UART
I have been using printf() to output to UART for many years on a STM32L052All these projects still compile and printf() to UART, no problem.I started a NEW project with CubeMX, but now printf() does NOT print to UART.I use the same int fputc(int ch, ...
