/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* STM32F107xC HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Configures Key push-button */
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI);
/*##-1- Configure the DAC peripheral #######################################*/
DacHandle.Instance = DACx;
/*##-2- Configure the TIM peripheral #######################################*/
TIM6_Config();
/* Infinite loop */
while (1)
{
/* If the Key is pressed */
if (ubKeyPressed != RESET)
{
HAL_DAC_DeInit(&DacHandle);
/* select waves forms according to the Key push-button status */
if (ubSelectedWavesForm == 1)
{
/* The triangle wave has been selected */
/* Triangle Wave generator -------------------------------------------*/
DAC_Ch1_TriangleConfig();
}
else
{
/* The escalator wave has been selected */
/* Escalator Wave generator -------------------------------------------*/
DAC_Ch1_EscalatorConfig();
}
ubKeyPressed = RESET;
}
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Configure LED4 */
BSP_LED_Init(LED4);
/* Configure USER Button */
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI);
/*##-1- Configure the DAC peripheral #######################################*/
DacHandle.Instance = DAC;
/*##-2- Configure the TIM peripheral #######################################*/
TIM6_Config();
/* Infinite loop */
while (1)
{
/* If USER Button is pressed */
if (ubKeyPressed != RESET)
{
HAL_DAC_DeInit(&DacHandle);
/* select waves forms according to the USER Button status */
if (ubSelectedWavesForm == 1)
{
/* The triangle wave has been selected */
/* Triangle Wave generator -------------------------------------------*/
DAC_Ch1_TriangleConfig();
}
else
{
/* The escalator wave has been selected */
/* Escalator Wave generator ------------------------------------------*/
DAC_Ch1_EscalatorConfig();
}
ubKeyPressed = RESET;
}
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Preconfiguration before using DAC----------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;
/* DMA1 clock and GPIOA clock enable (to be used with DAC) */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1 | RCC_AHB1Periph_GPIOA, ENABLE);
/* DAC Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
/* DAC channel 1 & 2 (DAC_OUT1 = PA.4)(DAC_OUT2 = PA.5) configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* TIM6 Configuration ------------------------------------------------------*/
TIM6_Config();
/* Configures Key Button */
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
while (1)
{
/* If the Key is pressed */
if (KeyPressed != RESET)
{
DAC_DeInit();
/* select waves forms according to the Key Button status */
if (SelectedWavesForm == 1)
{
/* The sine wave and the escalator wave has been selected */
/* Escalator Wave generator ------------------------------------------*/
DAC_Ch1_EscalatorConfig();
/* Sine Wave generator -----------------------------------------------*/
DAC_Ch2_SineWaveConfig();
}
else
{
/* The triangle wave and the noise wave has been selected */
/* Noise Wave generator ----------------------------------------------*/
DAC_Ch1_NoiseConfig();
/* Triangle Wave generator -------------------------------------------*/
DAC_Ch2_TriangleConfig();
}
KeyPressed = RESET;
}
}
}
