/**********************************************************************//**
* @brief Initializes the microphone, ADC, and DMA for recording.
*
* @param none
*
* @return none
*************************************************************************/
static void setupRecord(void)
{
LED_PORT_OUT |= LED_1; // Turn on LED
AUDIO_PORT_OUT |= MIC_POWER_PIN;
AUDIO_PORT_OUT &= ~MIC_INPUT_PIN;
AUDIO_PORT_SEL |= MIC_INPUT_PIN;
lcdBackLightLevelSettingLOCAL = halLcdGetBackLight();
if (lcdBackLightLevelSettingLOCAL < 5)
halLcdSetBackLight(0);
else
halLcdSetBackLight(16);
TBCTL = TBSSEL_2; // Use SMCLK as Timer_B source
TBR = 0;
TBCCR0 = 2047; // Initialize TBCCR0
TBCCR1= 2047- 100;
TBCCTL1 = OUTMOD_7;
UCSCTL8 |= MODOSCREQEN;
ADC12CTL2 = ADC12RES_0; // Select 8-bit resolution
ADC12CTL0 = ADC12ON + ADC12SHT02 ;
ADC12CTL1 = ADC12SHP + ADC12CONSEQ_2 + ADC12SSEL_2 + ADC12SHS_3;
//Sequence of channels, once
ADC12MCTL0 = MIC_INPUT_CHAN | ADC12EOS ; //VeREF+ and VeREF-
ADC12CTL0 |= ADC12ENC; //Enable
ADC12CTL0 |= ADC12SC; //Start conversion
DMACTL0 = DMA0TSEL_24; // ADC12IFGx triggers DMA0
__data16_write_addr((unsigned short)&DMA0SA, ADC12MEM0_);// Src address = ADC12 module
halButtonsInterruptDisable( BUTTON_S1 );
}
/**********************************************************************//**
* @brief Disables the recording peripherals and the microphone.
*
* @param none
*
* @return none
*************************************************************************/
static void shutdownRecord(void)
{
halLcdSetBackLight(lcdBackLightLevelSettingLOCAL);
TBCTL &= ~MC0;
ADC12CTL0 &= ~( ADC12ENC + ADC12ON );
FCTL1 = FWKEY; // Disable Flash write
FCTL3 = FWKEY + LOCK; // Lock Flash memory
// Power-down MSP430 modules
ADC12CTL1 &= ~ADC12CONSEQ_2; // Stop conversion immediately
ADC12CTL0 &= ~ADC12ENC; // Disable ADC12 conversion
ADC12CTL0 = 0; // Switch off ADC12 & ref voltage
TBCTL = 0; // Disable Timer_B
LED_PORT_OUT &= ~LED_1; // Turn off LED
AUDIO_PORT_OUT &= ~MIC_POWER_PIN; // Turn of MIC
AUDIO_PORT_SEL &= ~MIC_INPUT_PIN;
saveSettings(); // Store lastAudioByte to Flash
halLcdPrintLine(" DONE ", 6, INVERT_TEXT | OVERWRITE_TEXT);
halLcdPrintLineCol("Record", 8, 1, OVERWRITE_TEXT);
halLcdPrintLineCol("Play", 8, 12, OVERWRITE_TEXT);
buttonsPressed = 0;
halButtonsInterruptEnable( BUTTON_S1);
}
void init_LCD(void)
{
halLcdInit(); // Programa interno para iniciar la pantalla
halLcdBackLightInit(); // Inicio de Iluminación posterior de la pantalla
halLcdSetBackLight(iluminacion); // Determinación de la Iluminación posterior de la pantalla
halLcdSetContrast(contraste); //Establecimiento del contraste
halLcdClearScreen(); //Limpiar (borrar) la pantalla
}
void initialize_lcd()
{
halLcdInit();
halLcdBackLightInit();
halLcdSetBackLight(lcd_backlight);
halLcdSetContrast(lcd_contrast);
halLcdClearScreen();
}
void init_LCD(void)
{
//Inicializamos la pantallita LCD:
halLcdInit();
halLcdBackLightInit();
halLcdSetBackLight(iluminacion);
halLcdSetContrast(contraste);
halLcdClearScreen();
}
/*---------------------------------------------------------------------------*/
void
lcd_init(void)
{
if(WITH_LCD) {
halLcdInit();
halLcdActive();
halLcdBackLightInit();
halLcdSetBackLight(8);
lcd_clear();
}
}
int main(void) {
uint8_t currState;
uint8_t targetState;
uint16_t readbcLength;
uint32_t nwkId;
uint8_t errorCheckInterval = 100;
// Stop watchdog timer to prevent time out reset
WDTCTL = WDTPW + WDTHOLD;
// Initialize the MCU and board peripherals
halBoardInit();
halBoardStartXT1();
halBoardSetSystemClock(SYSCLK_16MHZ);
halButtonsInit(BUTTON_ALL);
halLcdInit();
halLcdBackLightInit();
halLcdSetContrast(90);
halLcdSetBackLight(10);
halLcdClearScreen();
halLcdPrintLine(" CC85XX SLAVE ", 0, OVERWRITE_TEXT );
halLcdPrintLine(" ", 1, OVERWRITE_TEXT );
halLcdPrintLine("S1: Power toggle ", 2, OVERWRITE_TEXT );
halLcdPrintLine("S2: Pairing start", 3, OVERWRITE_TEXT );
uifLcdPrintJoystickInfo();
// Wipe remote control information
memset(&ehifRcSetDataParam, 0x00, sizeof(ehifRcSetDataParam));
// Initialize EHIF IO
ehifIoInit();
// Reset into the application
ehifSysResetPin(true);
currState = CC85XX_STATE_ALONE;
targetState = CC85XX_STATE_ACTIVE;
// Get the last used network ID from CC85XX non-volatile storage
initParam();
ehifCmdParam.nvsGetData.index = 0;
ehifCmdExecWithRead(EHIF_EXEC_ALL, EHIF_CMD_NVS_GET_DATA,
sizeof(EHIF_CMD_NVS_GET_DATA_PARAM_T), &ehifCmdParam,
sizeof(EHIF_CMD_NVS_GET_DATA_DATA_T), &ehifCmdData);
nwkId = ehifCmdData.nvsGetData.data;
// Handle illegal default network IDs that may occur first time after programming
if ((nwkId == 0x00000000) || (nwkId == 0xFFFFFFFF)) {
nwkId = 0xFFFFFFFE;
}
// Main loop
while (1) {
// Wait 10 ms
EHIF_DELAY_MS(10);
// Perform action according to edge-triggered button events (debouncing with 100 ms delay)
switch (pollButtons()) {
// POWER TOGGLE
case BUTTON_S1:
if (currState == CC85XX_STATE_OFF) {
targetState = CC85XX_STATE_ACTIVE;
} else {
targetState = CC85XX_STATE_OFF;
}
break;
// PAIRING TRIGGER
case BUTTON_S2:
if (currState != CC85XX_STATE_OFF) {
targetState = CC85XX_STATE_PAIRING;
}
break;
}
// Run the state machine
if (currState != targetState) {
if (currState == CC85XX_STATE_OFF) {
// HANDLE POWER ON
// Ensure known state (power state 5)
ehifSysResetPin(true);
currState = CC85XX_STATE_ALONE;
} else if (targetState == CC85XX_STATE_OFF) {
// HANDLE POWER OFF
// Ensure known state (power state 5)
ehifSysResetPin(true);
currState = CC85XX_STATE_ALONE;
// Set power state 0
ehifCmdParam.pmSetState.state = 0;
ehifCmdExec(EHIF_CMD_PM_SET_STATE, sizeof(EHIF_CMD_PM_SET_STATE_PARAM_T), &ehifCmdParam);
currState = CC85XX_STATE_OFF;
} else if (targetState == CC85XX_STATE_PAIRING) {
// HANDLE PAIRING
// Let the last executed EHIF command complete, with 5 second timeout
ehifWaitReadyMs(5000);
// Disconnect if currently connected
if (ehifGetStatus() & BV_EHIF_STAT_CONNECTED) {
initParam();
// All parameters should be zero
ehifCmdExec(EHIF_CMD_NWM_DO_JOIN, sizeof(EHIF_CMD_NWM_DO_JOIN_PARAM_T), &ehifCmdParam);
}
// Search for one protocol master with pairing signal enabled for 10 seconds
initParam();
ehifCmdParam.nwmDoScan.scanTo = 1000;
ehifCmdParam.nwmDoScan.scanMax = 1;
ehifCmdParam.nwmDoScan.reqPairingSignal = 1;
ehifCmdParam.nwmDoScan.reqRssi = -128;
ehifCmdExecWithReadbc(EHIF_EXEC_CMD, EHIF_CMD_NWM_DO_SCAN,
sizeof(EHIF_CMD_NWM_DO_SCAN_PARAM_T), &ehifCmdParam,
NULL, NULL);
// Fetch network information once ready
ehifWaitReadyMs(12000);
readbcLength = sizeof(ehifNwmDoScanData);
ehifCmdExecWithReadbc(EHIF_EXEC_DATA, EHIF_CMD_NWM_DO_SCAN,
0, NULL,
&readbcLength, &ehifNwmDoScanData);
// If found ...
if (readbcLength == sizeof(EHIF_CMD_NWM_DO_SCAN_DATA_T)) {
// Update the network ID to be used next
nwkId = ehifNwmDoScanData.deviceId;
// Place the new network ID in CC85XX non-volatile storage
initParam();
ehifCmdParam.nvsSetData.index = 0;
ehifCmdParam.nvsSetData.data = ehifNwmDoScanData.deviceId;
ehifCmdExec(EHIF_CMD_NVS_SET_DATA, sizeof(EHIF_CMD_NVS_SET_DATA_PARAM_T), &ehifCmdParam);
}
// Done
currState = CC85XX_STATE_ALONE;
targetState = CC85XX_STATE_ACTIVE;
} else if (targetState == CC85XX_STATE_ACTIVE) {
// We're disconnected. Proceed only if EHIF is ready, so that power toggle and pairing
// buttons can still be operated
uint16_t status = ehifGetStatus();
if (status & BV_EHIF_STAT_CMD_REQ_RDY) {
// Perform join operation first and then activate audio channels. We're using remote
// volume control
if (!(status & BV_EHIF_STAT_CONNECTED)) {
// Enable disconnection notification to avoid unnecessary EHIF activity while active
initParam();
ehifCmdParam.ehcEvtClr.clearedEvents = BV_EHIF_EVT_NWK_CHG;
ehifCmdExec(EHIF_CMD_EHC_EVT_CLR, sizeof(EHIF_CMD_EHC_EVT_CLR_PARAM_T), &ehifCmdParam);
initParam();
ehifCmdParam.ehcEvtMask.irqGioLevel = 0;
ehifCmdParam.ehcEvtMask.eventFilter = BV_EHIF_EVT_NWK_CHG;
ehifCmdExec(EHIF_CMD_EHC_EVT_MASK, sizeof(EHIF_CMD_EHC_EVT_MASK_PARAM_T), &ehifCmdParam);
// Not connected: Start JOIN operation
initParam();
ehifCmdParam.nwmDoJoin.joinTo = 100;
ehifCmdParam.nwmDoJoin.deviceId = nwkId;
ehifCmdExec(EHIF_CMD_NWM_DO_JOIN, sizeof(EHIF_CMD_NWM_DO_JOIN_PARAM_T), &ehifCmdParam);
} else {
// Connected: Subscribe to audio channels (0xFF = unused)
memset(&ehifCmdParam, 0xFF, sizeof(EHIF_CMD_NWM_ACH_SET_USAGE_PARAM_T));
ehifCmdParam.nwmAchSetUsage.pAchUsage[0] = 0; // Front left -> I2S LEFT
ehifCmdParam.nwmAchSetUsage.pAchUsage[1] = 1; // Front right -> I2S RIGHT
ehifCmdExec(EHIF_CMD_NWM_ACH_SET_USAGE, sizeof(EHIF_CMD_NWM_ACH_SET_USAGE_PARAM_T), &ehifCmdParam);
currState = CC85XX_STATE_ACTIVE;
}
}
}
} else {
// Only OFF and ACTIVE are permanent target states. SCAN is only a temporary target state.
// In the OFF state we do nothing, so only need to handle the ACTIVE state.
if (currState == CC85XX_STATE_ACTIVE) {
// Detect network disconnection without generating noise on the SPI interface
if (EHIF_INTERRUPT_IS_ACTIVE()) {
currState = CC85XX_STATE_ALONE;
}
// Perform error checking at 10 ms * 100 = 1 second intervals:
// - No timeouts or SPI errors shall have occurred
// - We should be connected unless disconnection has been signalized
if (--errorCheckInterval == 0) {
errorCheckInterval = 100;
uint16_t status = ehifGetStatus();
if (ehifGetWaitReadyError() || (status & BV_EHIF_EVT_SPI_ERROR) ||
(!(status & BV_EHIF_STAT_CONNECTED) && !(status & BV_EHIF_EVT_NWK_CHG))) {
// The device is in an unknown state -> restart everything
ehifSysResetPin(true);
currState = CC85XX_STATE_ALONE;
}
}
// If the network connection is up and running...
if (currState == CC85XX_STATE_ACTIVE) {
// Send remote control commands (mouse or play control, depending on which uif file
// is included in the build)
if (uifPollFunc(&ehifRcSetDataParam)) {
ehifCmdExec(EHIF_CMD_RC_SET_DATA, sizeof(EHIF_CMD_RC_SET_DATA_PARAM_T), &ehifRcSetDataParam);
}
}
}
}
}
} // main
