Missing Timer ETR input frequency specification
Hello,I miss a specification for timer ETR input frequency. The fext specification is only for CH1-x and with ftimxclk/2 is show that these inputs are sampled. Is the ETR input also sampled?
Forum Posts
delay inside a EXTI9_5 callback function
I have been trying to create a asynchronous serial UART communication on GPIOA pin 9 and pin 8pin9- is RxPin8- is Txin order to sample the message at the right time I have create a dealy function using the DWT mechanism, the idea is to wait 1.5*(1/b...
How Read-while-write operations are performed on the STM32F413 chip?
Hi,As I understand, the STM32F413 MCU doesn't have dual-bank architecture, but I'm still able to perform read-while-write (RWW) operations without causing the CPU to stall.I have a little experience of working with the chips that don't have an intern...
FDCAN Arbitration lost / LEC error doesn't handled with IRQ in DAR mode. Probably - the potential hardware bug.
Hello guys.I try to catch the IRQ of arbitration lost and error code in LEC in FDCAN in DAR (disabled auto retransmission) mode.I have 3 devices in CAN network: STM32F207 - 2 pcs STM32H745Q (dev board) + external phy.All devices works good. They ...
SPI Tsize-Tser
Hello , ı read RM0433 ,I could not understand the process in the image below(page 2198)
Resolved! Nucleo L476RG - Turn on LED
I am using a NUCLEO-L476RG development board, I am learning to write GPIO drivers for STM32 family I am implementing a simple logic in which I need to turn on an LED when a push button is pressed.I have a strange issue: The Bread board LED turns ON w...
How to convert old code to use FPU ?
Hi I am trying to optimise my gait generation code for my robot. I use a lot of float operations . I want to use FPU to accelerate computing. As an experiment I am using the following taskTickType_t start = xTaskGetTickCount(); while( i<100000000) ...
Would it be possible to calibrate the M48T12 memory using an STM32?
Hello,The M48T12 memory outputs a test signal at 512Hz, with a deviation of 0.001Hz.I tried to read this deviation using a 24MHz sampling logic analyzer, but there was still a fluctuation in the reading of the thousandths of a Hz.I think maybe a 100M...
NOR flash mass erase hangs STM32H753?
Just got a weird problem with a NOR flash, memory mapped on FMC, address 0x60000000.The model is IS29GL128, 16 MB. Most of the code borrowed from eval. board examples.Basically it works (write, read, erase). But during mass erase the systick interrup...
