int process_usbmessage(void)
{
int result = 0;
switch(application_mode)
{
case STAND_ALONE:
{
if(local_buff_length == 5)
{
//d (from "deca")
if((local_buff[0] == 100) && (result == 0)) //d (from "deca")
{
if(local_buff[4] == 63)
{
int i = sizeof(SOFTWARE_VER_STRINGUSB);
//change mode to USB_TO_SPI and send a reply "y"
tx_buff[0] = 121;
memcpy(&tx_buff[1], SOFTWARE_VER_STRINGUSB, i);
tx_buff[i+2] = 0;
tx_buff_length = i + 2;
application_mode = USB_TO_SPI;
result = 2;
//led_off(LED_ALL);
led_on(LED_PC7); //turn on LED to indicate connection to PC application
}
}
}
}
break;
case USB_TO_SPI:
{
//first byte specifies the SPI speed and SPI read/write operation
//bit 0 = 1 for write, 0 for read
//bit 1 = 1 for high speed, 0 for low speed
//<STX> <ETX>
//
//to read from the device (e.g. 4 bytes), total length is = 1 + 1 + length_of_command (2) + length_of_data_to_read (2) + header length (1/2) + 1
//
//to write to the device (e.g. 4 bytes), total length is = 1 + 1 + length_of_command (2) + length_of_data_to_write (2) + header length (1/2) + data length + 1
//
//LBS comes first: 0x2, 0x2, 0x7, 0x0, 0x04, 0x00, 0x3
if(local_buff_length)
{
//0x2 = STX - start of SPI transaction data
if(local_buff[0] == 0x2)
{
//configure SPI speed
configSPIspeed(((local_buff[1]>>1) & 0x1));
if((local_buff[1] & 0x1) == 0) //SPI read
{
int msglength = local_buff[2] + (local_buff[3]<<8);
int datalength = local_buff[4] + (local_buff[5]<<8);
//led_on(LED_PC6);
tx_buff[0] = 0x2;
tx_buff[datalength+2] = 0x3;
//max data we can read in a single SPI transaction is 4093 as the USB/VCP tx buffer is only 4096 bytes long
if((local_buff[msglength-1] != 0x3) || (datalength > 4093))
{
tx_buff[1] = 0x1; // if no ETX (0x3) indicate error
}
else
{
// do the read from the SPI
readfromspi(msglength-7, &local_buff[6], datalength, &tx_buff[2]); // result is stored in the buffer
tx_buff[1] = 0x0; // no error
}
tx_buff_length = datalength + 3;
result = 2;
}
if((local_buff[1] & 0x1) == 1) //SPI write
{
int msglength = local_buff[2] + (local_buff[3]<<8);
int datalength = local_buff[4] + (local_buff[5]<<8);
int headerlength = msglength - 7 - datalength;
if(local_buff_length == msglength) //we got the whole message (sent from the PC)
{
local_buff_offset = 0;
led_off(LED_PC6);
tx_buff[0] = 0x2;
tx_buff[2] = 0x3;
if(local_buff[msglength-1] != 0x3)
{
tx_buff[1] = 0x1; // if no ETX (0x3) indicate error
}
else
{
// do the write to the SPI
writetospi(headerlength, &local_buff[6], datalength, &local_buff[6+headerlength]); // result is stored in the buffer
tx_buff[1] = 0x0; // no error
}
tx_buff_length = 3;
result = 2;
}
else //wait for the whole message
{
led_on(LED_PC6);
}
}
}
if((local_buff[0] == 100) && (result == 0)) //d (from "deca")
{
if(local_buff[4] == 63)
{
int i = sizeof(SOFTWARE_VER_STRINGUSB);
//change mode to USB_TO_SPI and send a reply "y"
tx_buff[0] = 121;
memcpy(&tx_buff[1], SOFTWARE_VER_STRINGUSB, i);
tx_buff[i+2] = 0;
tx_buff_length = i + 2;
application_mode = USB_TO_SPI;
result = 2;
//led_off(LED_ALL);
led_on(LED_PC7); //turn on LED to indicate connection to PC application
}
}
if((local_buff[0] == 114) && (result == 0)) //r - flush the USB buffers...
{
DCD_EP_Flush(&USB_OTG_dev, CDC_IN_EP);
result = 0;
}
}
}
break;
case USB_PRINT_ONLY:
if(local_buff_length && (result == 0))
{
if((local_buff[0] == 0x5) && (local_buff[5] == 0x5))
{
uint16 txantennadelay = local_buff[1] + (local_buff[2]<<8);
uint16 rxantennadelay = local_buff[3] + (local_buff[4]<<8);
instanceconfigantennadelays(txantennadelay, rxantennadelay);
}
if((local_buff[0] == 0x7) && (local_buff[5] == 0x7))
{
//not used in EVK
}
if((local_buff[0] == 0x6) && (local_buff[2] == 0x6))
{
uint8 switchS1 = local_buff[1];
//disable DW1000 IRQ
port_DisableEXT_IRQ(); //disable IRQ until we configure the device
//turn DW1000 off
dwt_forcetrxoff();
//re-configure the instance
inittestapplication(switchS1);
//save the new setting
s1configswitch = switchS1;
//set the LDC
setLCDline1(switchS1);
//enable DW1000 IRQ
port_EnableEXT_IRQ(); //enable IRQ before starting
ranging = 0;
}
//d (from "deca")
if(local_buff[0] == 100) //d (from "deca")
{
if(local_buff[4] == 63)
{
int i = sizeof(SOFTWARE_VER_STRINGUSB);
//send a reply "n"
tx_buff[0] = 110;
memcpy(&tx_buff[1], SOFTWARE_VER_STRINGUSB, i);
tx_buff[i+2] = 0;
tx_buff_length = i + 2;
result = 2;
}
if(local_buff[4] == 36) //"$"
{
//send a reply "n"
tx_buff[0] = 110;
memcpy(&tx_buff[1], version, version_size);
tx_buff[version_size+1] = s1configswitch & 0xff;
tx_buff[version_size+2] = '\r';
tx_buff[version_size+3] = '\n';
tx_buff_length = version_size + 4;
result = 2;
}
if(local_buff[4] == 33) //"!"
{
//send back the DW1000 partID and lotID
uint32 partID = dwt_getpartid();
uint32 lotID = dwt_getlotid();
tx_buff[0] = 110;
memcpy(&tx_buff[1], &partID, 4);
memcpy(&tx_buff[5], &lotID, 4);
tx_buff[9] = '\r';
tx_buff[10] = '\n';
tx_buff_length = 11;
result = 2;
}
}
}
break;
default:
break;
}
/**
* Application entry point.
*/
int main(void)
{
int prijem=0;
uint32 device_id;
/* Start with board specific hardware init. */
peripherals_init();
spi_peripheral_init();
Sleep(1000); //wait for LCD to power on
initLCD();
/* Display application name on LCD. */
setLCDline1( 234);
// Sleep(1000);
usb_init();
//Sleep(1000);
// lcd_display_str("connected");
/* Reset and initialise DW1000.
* For initialisation, DW1000 clocks must be temporarily set to crystal speed. After initialisation SPI rate can be increased for optimum
* performance. */
reset_DW1000(); /* Target specific drive of RSTn line into DW1000 low for a period. */
SPI_ChangeRate(SPI_BaudRatePrescaler_32);
// spi_set_rate_low();
// uint32 temp = dwt_read32bitoffsetreg(AON_ID,AON_WCFG_OFFSET);
dwt_initialise(DWT_LOADUCODE);
// dwt_configuresleepcnt(sleep16); //needed for LPL
// dwt_configuresleep(DWT_LOADUCODE | DWT_LOADOPSET | DWT_PRESRV_SLEEP | DWT_CONFIG, DWT_WAKE_WK | DWT_SLP_EN); //needed for LPL
SPI_ChangeRate(SPI_BaudRatePrescaler_4);
//spi_set_rate_high();
// dwt_configure(&config);
/* Loop forever receiving frames. */
/* while (1)
{
led_on(LED_ALL);
Sleep(100);
led_off(LED_ALL);
Sleep(100);
push_over_usb("nikola",6);
setLCDline1( 123);
}*/
s1switch = is_button_low(0) << 1 // is_switch_on(TA_SW1_2) << 2
| is_switch_on(TA_SW1_3) << 2
| is_switch_on(TA_SW1_4) << 3
| is_switch_on(TA_SW1_5) << 4
| is_switch_on(TA_SW1_6) << 5
| is_switch_on(TA_SW1_7) << 6
| is_switch_on(TA_SW1_8) << 7;
port_EnableEXT_IRQ();
while(1){
setLCDline1(123);
deca_sleep(1000);
device_id= inittestapplication(s1switch);
setLCDline1(instance_data[0].mode);
if(instance_mode == TAG){
setLCDline1(1);
}
else if(instance_mode==ANCHOR){
setLCDline1(2);
}
else {
setLCDline1(3);
}
deca_sleep(1000);
// instance_run();
//setLCDline1(message);
instance_run();
}
}
