![]() ![]() In this section, we will see how to create your first program with Keil uvision IDE for the STM32F4 discovery board. Writing your First Program for STM32F4 Discovery Board with Keil In this LED blinking tutorial, we will see how to blink these LEDs using HAL drivers in Keil uvision IDE. LD6: blue LED is a user LED connected to the I/O PD15 of the STM32F407VGT6.LD5: red LED is a user LED connected to the I/O PD14 of the STM32F407VGT6.LD4: green LED is a user LED connected to the I/O PD12 of the STM32F407VGT6. ![]() LD3: orange LED is a user LED connected to the GPIO pin PD13 of the STM32F407VGT6.The Discovery board comes with four user LEDs connected with PD12, PD13, PD14 and PD15 pins of PORTD through a current limiting resistor. But on the STM32F4 discovery board only 5 GPIO ports are available to use on the two connector headers from PORTA, PORTB, PORTC, PORTD, PORTE and a total of 80 GPIO pins are available to use from two headers as shown in the figure below: OnBoard LEDs STM32F4 Discovery Board
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