About er3481

er3481 · 2024-05-11

Hi,I am trying to read some square signal with timer input capture for both falling and rising edge times. When i start the code, the interrupt routine works once, even if there is no signal. I am using the code below for setup timer and interrupt ro...

er3481 · 2024-05-10

Hi,I want to use PB3 an PB4 pins as SPI1. When i use st-link and debug my code, it works. but when i plug-off st-link it seems that mcu can not boot. I use the codes below for jtag disable , but it does not work. Any advise for my problem? GPIO_InitT...

er3481 · 2023-09-06

Hi,I want to design a capacitive touch application with a brass metal plate. So, i need a sensor that is suitable with brass metal. Is there any advised product for me?

er3481 · 2023-01-13

Hi,I am trying to use timer pwm outputs for Timer4, Timer2 and Timer1 bolcks. I am using initial functions below, but i can not see pwm signals from outputs. What is wrong with the codes below ? Any advises./**TIMER2 PWM SETUPS**/ RCC_APB2PeriphC...

er3481 · 2022-10-21

Hi,I am trying to write some datato external eeprom with I2C_EEPROM_WritePage function, but it doesn't write everytime. Sometimes it can write and sometimes it can't. I am using standart peripheral I2C library and using the write page function below....

er3481 · 2024-05-12

Hi,Yes, i use SPL.When i debug the code and put a break point in interrupt, it works there at start up.I connect an external square signal to PA10 pin, it works normally when i start the external signal, but at start up there is signal, and i can see...

er3481 · 2024-05-10

Hi,I have found the problem. It is about the SPI1 setups, when i try to read some data from SPI, it was blocked in the read function, so i use the code below for start up and it is solved now. RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE); R...

er3481 · 2023-01-14

Hi @Community member I have solved the problem with "GPIO_PinRemapConfig" function for Timer1, Timer2 and Timer4 bloacks. The problem was solved. Thanks...

er3481 · 2022-03-14

Hi,In fact i have long frame buffer and i want to address it to external psram. So i have added the psram line to .ld file:MEMORY{ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K FRAMEBUFFER (rw) : ORIGIN = 0x60000000, LENGTH = 384K FLASH ...

er3481 · 2022-03-12

Ok, i have settings below and FRAMEBUFFER start adress is shown as "20040000" ( i am using PSRAM and the bank address is 0x60000000). How can i edit this address for 0x60000000?

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stm32f103 timer input capture

STM32F103VET6 boot problem

capacitive touch with brass metal

Timer PWM settings

eeprom write page error

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