void send(uint8_t status, uint8_t* buffer, uint8_t buffer_length) {
uint8_t transmitBuffer[UART_command_length + 1];
transmitBuffer[0] = MORE_DATA;
uint8_t total_transmitted = 0;
while (total_transmitted < buffer_length) {
if (buffer_length - total_transmitted <= UART_command_length) {
transmitBuffer[0] = status;
}
for (int i = 0; i < UART_command_length; i++) {
if (total_transmitted < buffer_length) {
transmitBuffer[i+1] = buffer[total_transmitted];
} else {
transmitBuffer[i+1] = 0;
}
total_transmitted++;
}
if (HAL_UART_Transmit(&hUART, (unsigned char*) transmitBuffer, UART_command_length + 1, 1000) != HAL_OK) {
Output_High(FAIL_LED_GPIOx, FAIL_LED_Pin);
Output_High(BUSY_LED_GPIOx, BUSY_LED_Pin);
for (int i = 0; i < 10; i++) {
HAL_GPIO_TogglePin(FAIL_LED_GPIOx, FAIL_LED_Pin);
HAL_GPIO_TogglePin(BUSY_LED_GPIOx, BUSY_LED_Pin);
HAL_Delay(50);
}
}
HAL_Delay(100);
}
}
//------------------------------------------------------------------------------
// Main Function:
//------------------------------------------------------------------------------
void main()
{
//--------------------------------------------------------------------------
// PIC Initialization Section
//--------------------------------------------------------------------------
Disable_Interrupts(GLOBAL); // all interrupts OFF
Setup_adc(ADC_OFF); // ADC not needed
Setup_adc_ports(NO_ANALOGS); // No ADC ports needed
Setup_timer_0(RTCC_INTERNAL|RTCC_DIV_256); // Timer 0 set for 42.6us,
Setup_timer_1(T1_DISABLED); // Timer 1
Set_Tris_A(TRISA_Enabled); // SPI Disabled
Set_Tris_B(TRISB_Disable); // Flash SPI Disabled
Set_Tris_C(TRISC_Disable); // Flash SPI Disabled
Output_high(FLASH_SELECT); // Slash Select High
Output_high(FLASH_CLOCK); // Pulse the clock
Output_low(RTC_RST); // Disable RTC
Output_High(FPGALoad); // FPGA Upload pin
Output_High(FPGAReset); // FPGA reset off
Output_High(TestLED); // indication of boot up
spi_enabled = False; // ZBC to PIC SPI disabled initially
spi_write = False; // ZBC to PIC SPI disabled initially
Refresh_RTCSPI(); // Refresh data from RTC into SPI buffer
//--------------------------------------------------------------------------
// USB Initialization Section
//--------------------------------------------------------------------------
usb_init_cs(); // Initialize the USB Connection
if(read_eeprom(BOOT_TYPE) > 0) { // We want boot from FLASH
FlashToFPGA(); // If not hooked up to USB then try to init
Output_Low(FPGAReset); // FPGA reset off
Output_High(FPGAReset); // FPGA reset off
Output_Low(TestLED); // Turn off Test LED
}
else {
FGPA_SPI_Init(); // Put PIC in SPI Slave mode
}
//--------------------------------------------------------------------------
// Main Command Loop:
//--------------------------------------------------------------------------
do { // Always do USB Task
usb_task(); // so it will detect USB pluging in
if(usb_enumerated()) { // Are we plugged into the USB port ?
usb_rcvdata_task(); // If so, check for data
}
if(spi_enabled) { // if ZBC to PIC SPI enabled, then check
if(SSP_HAS_DATA()) {
Handle_SPI(); // Handle SPI request from ZBC
}
} // Otherwise... just
} while(True); // Continue forever, what else can we do ?
}
