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main.c
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main.c
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// *************************************************************************************************
//
// Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// *************************************************************************************************
#include <intrinsics.h>
#include <string.h>
#include "project.h"
#include "ccSPI.h"
#include "ccxx00.h"
#include "cmdHandler.h"
#include "USB_config/descriptors.h"
#include "USB_API/USB_Common/device.h"
#include "USB_API/USB_Common/types.h" //Basic Type declarations
#include "USB_API/USB_Common/usb.h" //USB-specific functions
#include "F5xx_F6xx_Core_Lib/HAL_UCS.h"
#include "F5xx_F6xx_Core_Lib/HAL_PMM.h"
#include "USB_API/USB_CDC_API/UsbCdc.h"
#include "usbConstructs.h"
#include "BM_API.h"
#include "BlueRobin_TX_API.h"
#include "simpliciti.h"
#include "mrfi.h"
#include "WBSL/wbsl.h"
//Function declarations
void InitPorts_v(void);
void InitClock_v(void);
//Global flags set by events
volatile u8 bCDCDataReceived_event = FALSE; //Indicates data has been received without an open rcv operation
// *************************************************************************************************
// Global Variable section
// SimpliciTI Sync variables
u8 simpliciti_sync_buffer[BM_SYNC_DATA_LENGTH];
u8 simpliciti_sync_buffer_status;
// *************************************************************************************************
// Extern variable section
extern u8 rf_tx_over; // Flag to indicate last byte has been sent
// *************************************************************************************************
// Extern functions section
// BlueRobin init function
void InitProject_v(void);
// *************************************************************************************************
// Function prototype section
// *************************************************************************************************
// The one and only main function
// *************************************************************************************************
void main (void)
{
// Stop WDT
WDTCTL = WDTPW + WDTHOLD;
// As fast as possible 26MHz to GDO2 pin of CC1101 as it is required to clock USB
CC_SPI_Init_v();
//CC_SPI_SelectChipWaitUntilReady_v();
CC_SPI_WriteRead_u8(CCXX00_REG_IOCFG0);
CC_SPI_WriteRead_u8(0x2E);
CC_SPI_WriteRead_u8(CCXX00_REG_IOCFG2);
CC_SPI_WriteRead_u8(0x30);
CC_SPI_DeselectChip_v();
UCSCTL6 |= XT2BYPASS;
// Initialize unused port pins
InitPorts_v();
// Set Vcore to the level required for USB operation
SetVCore(3);
// Initialize clock system
InitClock_v();
// Initialize debug output pins
INIT_TX_ACTIVITY;
INIT_RX_ACTIVITY;
// Initialize BR receiver library
BR_Init_v();
BRTX_SetID_v(TX_SERIAL_NO);
BRTX_WriteData_v(0, 40);
// Reset simpliciti_data
simpliciti_data[0] = 0xFF;
// Initialize command handler
usb_handler_init();
// Enable interrupts
__enable_interrupt();
// Initialize USB port
USB_init();
// Enable various USB event handling routines
USB_setEnabledEvents( kUSB_VbusOnEvent + kUSB_VbusOffEvent + kUSB_receiveCompletedEvent
+ kUSB_dataReceivedEvent + kUSB_UsbSuspendEvent + kUSB_UsbResumeEvent + kUSB_UsbResetEvent);
// See if we are already attached physically to USB, and if so, connect to it
// Normally applications don't invoke the event handlers, but this is an exception.
if (USB_connectionInfo() & kUSB_vbusPresent)
{
USB_handleVbusOnEvent();
}
LED_ON;
while (1)
{
// For BlueRobin
if (bluerobin_start_now && !simpliciti_on && !wbsl_on)
{
// Start BlueRobin stack
bluerobin_start();
system_status = HW_BLUEROBIN_TRANSMITTING;
// Reset start flag
bluerobin_start_now = 0;
}
// For SimpliciTI AP
else if (simpliciti_start_now && !wbsl_on)
{
RX_ACTIVITY_ON;
// Clear start trigger
simpliciti_start_now = 0;
// Assign new system status
system_status = HW_SIMPLICITI_LINKED;
simpliciti_on = 1;
// Start access point and stay there until exit flag is set
simpliciti_main();
// Clear SimpliciTI flags
system_status = HW_SIMPLICITI_STOPPED;
simpliciti_on = 0;
// Clean up after SimpliciTI
simpliciti_data[0] = 0xFF;
RX_ACTIVITY_OFF;
}
else if (wbsl_start_now && !simpliciti_on)
{
RX_ACTIVITY_ON;
// Clear start Trigger
wbsl_start_now = 0;
//Config the RF module for WBSL
wbsl_config();
// Assign new System Status
system_status = HW_WBSL_LINKED;
wbsl_on = 1;
// Start access point and try to pair with an End Device,
// once paired, download the software update then return.
wbsl_main();
// Check if there was an error during the Update procedure to alert the GUI
if(getFlag(wbsl_flag,WBSL_STATUS_ERROR))
{
system_status = HW_WBSL_ERROR;
}
else
{
system_status = HW_WBSL_STOPPED;
}
//Clear WBSL Flags
wbsl_on = 0;
wbsl_data[0] = 0xFF;
RX_ACTIVITY_OFF;
}
}
}
void USB_Handler_v(void)
{
WORD bytesSent;
WORD bytesReceived;
// From PC to MSP430
if (bCDCDataReceived_event)
{
bCDCDataReceived_event = FALSE; // Clear flag early -- just in case execution breaks below because of an error
bytesReceived = USBCDC_bytesInUSBBuffer(0);
if (usb_bufferIndex + bytesReceived > USB_MAX_MESSAGE_LENGTH)
{
usb_bufferIndex = 0;
}
USBCDC_receiveData(&usb_buffer[usb_bufferIndex], bytesReceived, 0);
// Increase buffer index
usb_bufferIndex += bytesReceived;
// get packet length from byte #2 of received packet
if ((usb_bufferIndex >= 2) && (usb_buffer[2] >= USB_MIN_MESSAGE_LENGTH) && (usb_bufferIndex > (usb_buffer[2] - 1)))
{
//extract data from packet
usb_decode();
usb_bufferIndex = 0;
}
}
// From MSP430 to PC
if (usb_sendack)
{
if ((USBCDC_intfStatus(0, &bytesSent, &bytesReceived) & kUSBCDC_waitingForSend) == 0)
{ //we can send
// Disable interrupts
__disable_interrupt();
switch (USBCDC_sendData(&usb_buffer[0], usb_buffer[2], 0))
{
case kUSBCDC_sendStarted:
break;
case kUSBCDC_busNotAvailable:
break;
default:
break;
}
usb_sendack = 0;
// Enable interrupts
__enable_interrupt();
}
else
{
//send operation from previous sendData() is not completed yet.
// ......
}
}
}
void justSendTheFuckingDataViaUsb(uint8_t* buffer, uint8_t length)
{
memcpy(usb_buffer + PACKET_BYTE_FIRST_DATA, buffer, length);
usb_buffer[PACKET_BYTE_SIZE] = length + 3;
WORD lamp1, lamp2;
while(1)
{
if ((USBCDC_intfStatus(0, &lamp1, &lamp2) & kUSBCDC_waitingForSend) == 0)
{ //we can send
// Disable interrupts
__disable_interrupt();
switch (USBCDC_sendData(usb_buffer, usb_buffer[2], 0))
{
case kUSBCDC_sendStarted:
break;
case kUSBCDC_busNotAvailable:
break;
default:
break;
}
// Enable interrupts
__enable_interrupt();
break;
}
else
{
continue;
}
}
}
// *************************************************************************************************
// Init clock system
// *************************************************************************************************
void InitClock_v(void)
{
// Enable 32kHz ACLK on XT1 via external crystal and 26MHz on XT2 via external clock signal
P5SEL |= (BIT2 | BIT3 | BIT4 | BIT5); // Select XINs and XOUTs
// UCSCTL6 &= ~XT1OFF; // Switch on XT1, keep highest drive strength - default
// UCSCTL6 |= XCAP_3; // Set internal load caps to 12pF - default
// UCSCTL4 |= SELA__XT1CLK; // Select XT1 as ACLK - default
// Configure clock system
_BIS_SR(SCG0); // Disable FLL control loop
UCSCTL0 = 0x0000; // Set lowest DCOx, MODx to avoid temporary overclocking
// Select suitable DCO frequency range and keep modulation enabled
UCSCTL1 = DCORSEL_5; // DCO frequency above 8MHz but not bigger than 16MHz
UCSCTL2 = FLLD__2 | (((MCLK_FREQUENCY + 0x4000) / 0x8000) - 1); // Set FLL loop divider to 2 and
// required DCO multiplier
// UCSCTL3 |= SELREF__XT1CLK; // Select XT1 as FLL reference - default
// UCSCTL4 |= SELS__DCOCLKDIV | SELM__DCOCLKDIV; // Select XT1 as ACLK and
// divided DCO for SMCLK and MCLK - default
_BIC_SR(SCG0); // Enable FLL control loop again
// Loop until XT1 and DCO fault flags are reset
do
{
// Clear fault flags
UCSCTL7 &= ~(XT2OFFG | XT1LFOFFG | DCOFFG);
SFRIFG1 &= ~OFIFG;
} while ((SFRIFG1 & OFIFG));
// Worst-case settling time for the DCO when changing the DCO range bits is:
// 32 x 32 x MCLK / ACLK
__delay_cycles(((32 * MCLK_FREQUENCY) / 0x8000) * 32);
_BIS_SR(SCG0); // Disable FLL control loop
}
// *************************************************************************************************
// Init Ports
// *************************************************************************************************
void InitPorts_v(void)
{
// Initialize all unused pins as low level output
P4OUT &= ~( BIT4 | BIT5 | BIT6 | BIT7);
P5OUT &= ~(BIT0 | BIT1 );
P6OUT &= ~(BIT0 | BIT1 | BIT2 | BIT3 );
P4DIR |= ( BIT4 | BIT5 | BIT6 | BIT7);
P5DIR |= (BIT0 | BIT1 );
P6DIR |= (BIT0 | BIT1 | BIT2 | BIT3 );
}
// *************************************************************************************************
// Start BlueRobin transmission
// *************************************************************************************************
void bluerobin_start(void)
{
u32 ID_u32;
// Init the BlueRobin Timer to run continuous mode clocked with ACK
TA0CTL = MC1 | TASSEL0;
// Init s/w
ID_u32 = BRTX_GetID_u32();
BR_Init_v();
BRTX_SetID_v(ID_u32);
BRTX_Start_v();
// Set on flag
bluerobin_on = 1;
}
// *************************************************************************************************
// Stop BlueRobin transmission
// *************************************************************************************************
void bluerobin_stop(void)
{
BRTX_Stop_v();
//Stop BlueRobin Timer
TA0CTL &= ~MC1;
/* Set Timer0 count register to 0x0000 */
TA0R = 0;
// Clear on flag
bluerobin_on = 0;
}
/*
* ======== UNMI_ISR ========
*/
#pragma vector = UNMI_VECTOR
__interrupt void UNMI_ISR(void)
{
switch (__even_in_range(SYSUNIV, SYSUNIV_BUSIFG))
{
case SYSUNIV_NONE:
__no_operation();
break;
case SYSUNIV_NMIIFG:
__no_operation();
break;
case SYSUNIV_OFIFG:
UCSCTL7 &= ~(DCOFFG + XT1LFOFFG + XT2OFFG); //Clear OSC fault flags
SFRIFG1 &= ~OFIFG; //Clear OFIFG fault flag
break;
case SYSUNIV_ACCVIFG:
__no_operation();
break;
case SYSUNIV_BUSIFG:
//If bus error occured - the cleaning of flag and re-initializing of
//USB is required.
SYSBERRIV = 0; //clear bus error flag
USB_disable(); //Disable
break;
}
}