STM32 MCUs Products

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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???????????

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fchai.1 by Associate II
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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.

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KLee.29 by Associate
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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) { ...

cjaya.1 by Associate II
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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...

eab.11 by Associate
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  • 4 replies
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