Implementing Interrupt driven Stream UART Rx Handling with STM32CubeMX drivers
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How timers in STM32F7 start workig?
While preparing slides for students about timers in STM32F7 microcontrollers, I came across several inaccuracies in the description of their work presented in the STM32F7 reference manual RM0410 rev 4. The following sentence can be found in the menti...
STM32F103C8T6: How to output/input serial data with USART and DMA in a continuous stream?
I have been told that the STM32F103C8T6 has 4 SPI peripherals, including the 2 SPI peripherals and the USART peripherals. Though upon browsing the reference manual in the USART section, it seems as if it has to use start/stop bits, and therefore can'...
TIMx_ARR relations to the preload and shadow register?
In RM0008 Technical Reference Chapter 15, TIMx_ARR was introduced in counting mode. Meanwhile, two other registers: preloaded and shadow register, were also mentioned. However, in the TIMx register Map, Preloaded and shadow registers were not mention...
Resolved! STM32F4 DSP noise with inbuilt ADC and DAC
I'm trying to perform signal filtering with STM32F407VGT. I've set up the ADC and DAC to work synchronously, triggered by a timer at 42kHz, and using DMA. The idea is to process half of the buffer while ADC is filling the other half. However, even wi...
Delay from CKT_EN to CK_CNT
In the RM0008, Figure 120 on page 379, it says "as soon as the CEN bit is written to 1, the prescaler is clocked by the internal clock, CK_INT. " as shown below. However in the figure, the CK_CNT appears 2 cycles after the CEN bit became 1. Given t...
meaning of PWREN bit in register RCC_APB1ENR
Could anybody help me to figure out the exact meaning of PWREN bit in register RCC_APB1ENR?I could not find any comments in the STM32 programming reference mannual.Thanks,Troy
How to create a Bootloader for STM32F746G-Discoboard?
HiI'm trying to create a bootloader for STM32F746G-Discoboard firt before create my own board. I have read AN2606 and AN3155 to create it by UART but also found this https://github.com/ferenc-nemeth/stm32-bootloader. I'm a little confused about what ...
h7 ibis file correctness
Hican you please check the stm32h743_753_lqfp100.ibs model from the en.stm32h7_ibis.zip archive? I have a problems simulating SI on the rmii interface, most likely because of this output model: io8_i2c_ft.Right now there is only two ic with direct rm...
Resolved! Hello, I'm new on STM32. I'm using STM32F769-Discovery for product prototiping and I am trying to use USART6 with interrupts. That's what I've:
#define UART_PORTID USART6//USART1 #define USARTx_CLK_ENABLE() __HAL_RCC_USART6_CLK_ENABLE(); #define USARTx_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE() #define USARTx_TX_GPIO_CLK_ENABLE() __HAL_RCC_G...
