2025年2月5日 · Hi Can you tell me how I can calculate a value for ARR for timer 2(32bit timer) and timer3(16bit timer) I am using STM32F407 APB1 timer clock is 12MHz prescaler is 6

Posted on May 29, 2015 at 19:48 In the datasheet of STM32F407 it is stated (Table 4, 2.2.21), the max speed for TIM1 is given with 168MHz, whereas TIM2-5 only run with max. 84MHz. This is quite clear, as TIM1 connects to APB2, running at max. 84MHz, and TIM2-5 connect to APB1, running at max 48MH...

Posted on March 29, 2018 at 04:32 I am trying to get the STM407VET to communicate to an SD Card using the SDIO interface and drivers. Code base was generated from CubeMX and Eclipse is the IDE. Debugging with Open OCD. Hardware is custom. I have tracked my problem down to the ability to just read...

Posted on June 11, 2013 at 23:11 I have a stupid question: F407 has 2 RAM banks - 128K with DMA access, and 64K no DMA access. 1) I saw that in all examples only the 1st bank used. 2) I saw that in all IAP Firmware Upgrade exampler, bootloader search for 02xxxxxxh value at ''APPLICATION_START''....

2024年3月30日 · I am need to interface STM32F407 board with PDM digital mems microphone to Capture the Realtime sound waves through I2S Serial communication. But little bit confusion is there because in I2S communication there are three pin I2S2_ SD,I2S2_ CK,I2S2_ WS. But in my PDM microphone VDD, GND, L/R,CLK,DOU...

Posted on July 18, 2012 at 22:11 Hi I am trying to write date and time to the RTC which I later will read. But something in my RTC configuration doesn’t work and reading the values in debug mode shows that the RTC registers that I try to set never …

2022年4月17日 · I have an STM32F407 and I'm using LwIP + DP83848 Ethernet PHY. I'm facing problems to ping the unit and I don't know why. The pinouts for the RMII settings. Red rings got to the processor. The blue ring shows RESET. It need to be logic 1 (HIGH) for the Ethernet PHY to start. The green ring sh...

2016年9月23日 · Subject: What SWD/ISP/JTAG to use with STM32F407? It should be your Target Voltage, ie whatever you are running the STM32 at, so 2.8V, 3.0V, 3.3V, etc. The pod isn't providing this, it is using it. You have this on the connector to power the voltage level converters on the debug pod.

2024年12月8日 · As shown in the picture below, there are many options which are provided by the list where STM32F407-DISC1, which is the board we want, is shown: The board is shown at the bottom right of the window, as seen in the following figure: Select the board by clicking on it.

I have to keep a pin high for a certain amount of time, about 1us, I figured that it probably makes sense to do this with a timer. I was going to use SysTick but I decided that it makes mores sense to learn the timer peripherals. I think I have the configuration and …