EXTI IRQ handler for EXTI_Line5 ,..EXTI_Line15 in STM32L

Regarding STM32L startup file "startup_stm32l1xx_hd.s" there is only 5 functions EXTI0_IRQHandler EXTI1_IRQHandler EXTI2_IRQHandler EXTI3_IRQHandler EXTI4_IRQHandler respectively for EXTI_Line0...
EXTI IRQ handler for EXTI_Line5 ,..EXTI_Line15 in STM32L

Regarding STM32L startup file "startup_stm32l1xx_hd.s" there is only 5 functions EXTI0_IRQHandler EXTI1_IRQHandler EXTI2_IRQHandler EXTI3_IRQHandler EXTI4_IRQHandler respectively for EXTI_Line0...
SPI code for STM32F446RE

I have been working on the SPI port of STM32F446RE. I am using (MDK Version 5 - Keil) as the IDE. I have configured my device to use the SPI1 port of the device. All the configuration details are as...
SPI code for STM32F446RE

I have been working on the SPI port of STM32F446RE. I am using (MDK Version 5 - Keil) as the IDE. I have configured my device to use the SPI1 port of the device. All the configuration details are as...
c language for mq3 sensor in stm32f446re

Does anyone know how to initialize mq3 alcohol sensor in keil software using c language? To also know how many percentage (range) of the presence of alcohol from someone's breath to be as input? Please...