/* Send message to PC */
void SendString(char* message) {
#ifdef ENABLE_USART
TM_USART_Puts(USART1, message);
#endif
#ifdef ENABLE_VCP
TM_USB_VCP_Puts(message);
#endif
}
int main(void)
{
/*Variable Declarations*/
uint8_t c;
uint16_t size = 0;
char ACK[7]="ACK\n";
char NACK[7]="NACK\n";
unsigned char status = 0;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, Flash preread and Buffer caches
- 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.
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 168 MHz */
SystemClock_Config();
/* Add your application code here
*/
printf("\nAll Systems Initialized!");
printf("\n...Running Host Application Code...\n");
BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_EXTI);
/* Configure LED3, LED4, LED5 and LED6 */
BSP_LED_Init(LED3);
BSP_LED_Init(LED4); //Line used for enabling Gating Board 2
BSP_LED_Init(LED5); //Line used for enabling Gating Board 1
BSP_LED_Init(LED6);
/*Configure GPIO pin : PB11 for I/O Update*/
__HAL_RCC_GPIOB_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : PD8 for Slave Select*/
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pin : PD9 for Master Reset*/
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pin : PA2 for External Interrupts from ILLUM_EN*/
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Set the SPI parameters */
SpiHandle.Instance = SPI2;
SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
SpiHandle.Init.Direction = SPI_DIRECTION_1LINE;
SpiHandle.Init.CLKPhase = SPI_PHASE_2EDGE;
SpiHandle.Init.CLKPolarity = SPI_POLARITY_HIGH;
SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
SpiHandle.Init.CRCPolynomial = 7;
SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
SpiHandle.Init.NSS = SPI_NSS_SOFT;
SpiHandle.Init.TIMode = SPI_TIMODE_DISABLE;
SpiHandle.Init.Mode = SPI_MODE_MASTER;
//Initialize DDS for Host-Control
initDDS();
resetphase();
modulation_off();
ioupdate();
printf("\nDDS Initialized for Host-Control.");
printf("\nDDS Channel Setup Complete");
//Initialize Timer for generating sync pulse and exposure counting
initializesync();
inituscounter();
printf("\nSync Pulse Initialized");
/* Initialize USB VCP */
TM_USB_VCP_Init();
printf("\nUSB Communication Setup Complete - Host Ready!");
////This Block makes the Host respond to ILLUM_EN
/* Enable and set External Interrupt to the highest priority */
HAL_NVIC_SetPriority(EXTI2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(EXTI2_IRQn);
////It should come at the end of all critical initialization
//Start Pulsing VD_IN to start capture of frames
//startsyncpulse();
/* Infinite loop */
while (1)
{
/* USB configured OK, drivers OK */
if (TM_USB_VCP_GetStatus() == TM_USB_VCP_CONNECTED) {
BSP_LED_On(LED3); //Status - All Good!
//Only process USB when modulation not in progress
if (modulation_state==0){
/* If something arrived at VCP */
if(TM_USB_VCP_Getc(&c)==TM_USB_VCP_DATA_OK){
/* Return data back */
if (c=='M'){
//Add interrupt guard
__disable_irq();
printf("\n");
//Take 51 Bytes in after receiving M
size = 0;
while((TM_USB_VCP_Getc(&cmd[size]) == TM_USB_VCP_DATA_OK)&&(size < commandsize))
{
printf("%04x ",cmd[size]);
size++;
}
printf("%d",size);
status = parse_usb(cmd,size);
//Block checks is the parsing went correct
if (status==1){
TM_USB_VCP_Puts(ACK);
BSP_LED_On(LED6);
}
else{
TM_USB_VCP_Puts(NACK);
BSP_LED_Off(LED6);
}
}
else{
BSP_LED_Off(LED6);
TM_USB_VCP_Puts(NACK);
}
__enable_irq();
}}
} else {
/* USB not OK */
BSP_LED_Off(LED3);
}
}
}
