/project-strange-controller-with-a9g

Project strange with A9G GPS and A4988 motor driver

Primary LanguageC

Project strange with A9G

STM32 HAL header file inclusion

Before building, check all header files in the src and core where stm32f4xx_hal.h is being included and change it to stm32f1xx_hal.h.

STM32 Timer configuration

  1. Enable RCC external crystal clock source
  2. Set

The following parameters are used for the timer.

Clock frequency: 72 MHz
Prescaler: 7200
Timer clock frequency: 10kHz
Timer period register(ARR): 10000
Timer period: 1ms

The following screenshots show how to set the timer being used to achieve the time setting functionality:

  1. Select timer 3

  2. Set the parameters as shown in the below diagram (can be adjusted accordingly)

Initializing GPS module

EEPROM memory

Add defines to memory location where to write time to. Change them according to the MCU you are using

#define START_ADDRESS 
#define STOP_ADDRESS

Check flash memory addresses in the FLASH_PAGE_F1.h

Debugging

When deploying, set the DEBUG define in the main.c to 0

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

...

#define DEBUG 1 // set to 0 to disable debugging


/* USER CODE END PD */