Forum Posts
STM32 and sim900a tcp/ip
Hi, i'm using an stm32F446re to read modbus rtu buffer from plc using usart1. now i need to send this data to a server using the gprs module sim900a on uart4 via tcp/ip. Any help please???????????
In I2C slave mode, IS there any way to put a NACK token at first receive byte, when host issue block read
I implement I2C slave mode at STM32L5x series MCU, Here I have a chances to put NACK token at first receive byte(command code judged),when host issue block read command, But the ACK of first byte receive seems control by HW, Software has no chance to...
Resolved! stm324x9i-eval example code packs
I have bought stm324x9i-eval in the past.I need a code pack of stm324x9i-eval examples.I'm using Keil uVision5 (MDK-ARM).I really need the stm32f MCU for training, so please help.
What is the equivalent input circuit for the ADCs on the STM32F334?
Hi,I've been looking around in the documentation, and I can't find anywhere what the equivalent input circuit for the ADCs on the STM32F334 are. What is the input capacitance? What is the equivalent series resistance of the analog mux? What is the sa...
Resolved! Cannot enable Serial Wire Viewer (SWV) for printing data over USART.
I am trying to print data over USART on the stm32g030c8t6. My code is as follows:/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main...
I have a problem with EXTI. I have connected switch with EXTI pin. When the switch is pressed first time it light up the led. But when I pressed the same switch second time it does not light up the led.
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if(GPIO_Pin == GPIO_PIN_10) { Switch10 = 1; HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_SET); } if(GPIO_PIN == GPIO_PIN_11) { ...
I want to program a 0 to 99 counter with 7 segments but I don't know where I wrote wrong in my code.Thank you for your help.
//////////////////refresh pin HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_RESET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_RESE...
