About Francesco_

Francesco_ · 2020-04-11

I want pass UART_HandleTypeDef *my_huart at function HAL_UART_Transmit and and mange the response with interrupt. The code is show below but doesn't work. Can you help me?//This is myfile.cvoid myfunc(UART_HandleTypeDef *my_huart){ char command[] ...

Francesco_ · 2020-04-02

Hi all,I'm trying to figure out how to handle an interrupt. In particular I would like to handle an interrupt without using the HAL library. I want to handle the uart interrupt in reception: RXNEIE enabled: when the data is received an interrupt occo...

Francesco_ · 2020-03-31

Board: STM32 NUCLEO F103RB (MB1136 C-01)Wire cable with ESP8266: UART1_tx (PA9) -> RX_ESP8266 and UART1_rx (PA10) -> TX_ESP8266Hi all,I try to send AT command between board and ESP8266, without success.I send the command but I don't see no reply. The...

Francesco_ · 2020-03-27

Board: NUCLEO STM32F103RB - MB1136 C-01Hi all,I try read, trought ADC1_IN0 (pin PA0) , the temperauture value from LM35, but read wrong value.LM35: connected at 5V, GND and A0. ADC1_IN0: work at 8 MHz with voltage reference of 3.3V and 12 bit of reso...

Francesco_ · 2020-03-14

This is the code: /* USER CODE BEGIN WHILE */ while (1) { HAL_GPIO_WritePin(GPIOA , LED_Pin, GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOA , LED_Pin, GPIO_PIN_RESET); HAL_Delay(10); char p[] = "128"; HAL_UART_Transmit(&huart2, (uint...

Francesco_ · 2020-04-11

Hi @Community member ,don't call blocking functions in the IRQ handler -> I don't have call HAL_UART_Receive(&huart1,..) and HAL_UART_Transmit(&huart2,..), how should I read the data? Do I have to read directly from the register?These other points ar...

Francesco_ · 2020-04-02

@Community member if it is a function that contains the address of the vector table why is it called USART1_IRQHandler? Is there a vector table only usart1?

Francesco_ · 2020-04-02

@Community member how does "void USART1_IRQHandler(void)" work? What happens at the register level?

Francesco_ · 2020-04-02

I'm using a STM32F103RB Nucleo and the peripheral is UART2, now i reading your example.

Francesco_ · 2020-04-02

I have configure ESP8266 with success, but i can't send html page. Below the steps:1) Send: AT+CIPSERVER=1,80 -> ESP8266 as server, listen on port 802) On Client (my phone) I write on the browser: 192.168.4.1:80 -> this is the ip of the ESP82663) I R...

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How to pass UART_HandleTypeDef *huart trough the funciont?

Understand how interrupts work

I can't send AT commands

Wrong voltage readings from ADC

Board: NUCLEO F103RB I have this problem with UART, the serial monitor show: x⸮x⸮x⸮x⸮... Why i have this beaheviour? I use UART2 (PA2 - PA3 board pin) and I connect the board at the PC trought USB cable.

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Re: I can't send AT commands