Looking an ADC high performance STM32.
Hellow.Mr.Kang system engineer in South Korea.Looking an ADC high performance STM32.The specification is as follows:1~5Msps , 2channel, PGA (if possible)
Forum Posts
pre-defined macro
Hello, I would like to use #define macro in my program to hold application, firmware version and firmware building time. I know i can put these definition into my program directly, and make modification before I compile my program. Could I use GNU C ...
Resolved! Why do I get an Error after stetting the PLL as System clock input?
This is the code:#include <stm32f4xx.h>void main(void){//Set up PA5(LED)RCC -> AHB1ENR |= 0x00000001; //enables clock for GPO PAGPIOA -> MODER |= 0x00000400; //PA Pin 5 as GPOGPIOA -> OTYPER |= 0x00000000; //PA Pin 5 as Push/PullGPIOA -> OSPEEDR |= 0...
Resolved! whats the best way to create a phased locked clock divider with timers
I have a 10 mhz external clock. I want to generate a phased locked division down to 1hz exclusively with timers. In my current test setup I am generating the 10mhz using TIM1 from the internal clock (this is to simulate the external clock). I am putt...
Strange first ADC values when sampling using AnalogIn on MbedOS.
Hello,I’m using the B-L475E-IOT01A with MbedOS and have the following code:hall_a3 = new AnalogIn(A3);hall_a4 = new AnalogIn(A4);hall_a5 = new AnalogIn(A5);while(true) { printf("Hall A3: %f\n", hall_a3->read()); printf("Hall A4: %f\n", hall_a4-...
CAN Bus Mask and ID
Trying to understand how to setup the ID and Mask with Extended ID. I want allow messages with id's 0x1E02xxxx. So 0x1E021234 would be accepted and 0x1E031234 rejected. /*##-2- Configure the CAN Filter ##########################################...
How much current ripple is allowable in a VDD (and/or VDDA) = 3.3V power supply for an STM32?
I am considering powering a STM32G4 with a DC-DC Switching Converter. One of the converters I am looking at has a PWM Switching Frequency of 6-MHz, the other 500 kHz. I'd use a hefty inductor and capacitor to filter the current ripple at this PWM fre...
Wrong SDIO settings? f_read fil only half array counts full array
Hello,which points of SDIO (DMA) settings i have to look for if my f_read reads only half but counts full.Example:uint16_t buffer1[1024];f_read(&file,&buffer1[0],1024,&cnt); buffer1 is filled with values to buffer1[511] but variable cnt gives me 10...
Weird cache write-back behavior for STM32F7508
I am doing some characterization study for the cache behavior on STM32F7508. The result is hard to understand.Below is a simple code that I use. I align the array A1 to the cacheline (aligned(32)), and it is placed on SRAM1 above TCM (0x20010000~ ) w...
Resolved! How do you differentiate GPIO interrupts that share the same EXTI interrupt?
Hi, I have a design where I have multiple GPIO interrupts and some share the same interrupt input line, for example EXTI10_15. How can I differentiate in the interrupt callback routine which GPIO triggered the interrupt aside from reading these GPIOs...
