/*******************************************************************************
* Function Name: StopWaveDac
********************************************************************************
*
* Summary
* Turns off the waveform for the specified function generator
*
* Parameters:
* fnGenerator - the index of the function generator to be stopped
*
* Return:
* None.
*
*******************************************************************************/
void StopWaveDac(int fnGenerator)
{
if (fnGenerator == 0) {
WaveDAC_0_Stop();
} else if (fnGenerator == 1) {
WaveDAC_1_Stop();
}
}
/*******************************************************************************
* Function Name: WaveDAC_1_Sleep
********************************************************************************
*
* Summary:
* Stops the component and saves its configuration. Should be called
* just prior to entering sleep.
*
* Parameters:
* None
*
* Return:
* None
*
* Global variables:
* WaveDAC_1_backup: The structure field 'enableState' is modified
* depending on the enable state of the block before entering to sleep mode.
*
* Reentrant:
* No
*
*******************************************************************************/
void WaveDAC_1_Sleep(void)
{
/* Save DAC8's enable state */
WaveDAC_1_backup.enableState = (WaveDAC_1_IDAC8_ACT_PWR_EN ==
(WaveDAC_1_IDAC8_PWRMGR_REG & WaveDAC_1_IDAC8_ACT_PWR_EN)) ? 1u : 0u ;
WaveDAC_1_Stop();
WaveDAC_1_SaveConfig();
}
void stopWaveDac(int fnGenerator)
{
switch (fnGenerator) {
case WAVEDAC_LOW_0:
case WAVEDAC_HIGH_0:
WaveDAC_0_Stop();
break;
case WAVEDAC_LOW_1:
case WAVEDAC_HIGH_1:
WaveDAC_1_Stop();
break;
}
}
int main()
{
char freq0Disp[16], freq1Disp[16];
char usbRx[USBUART_BUFFER_SIZE], usbTx[USBUART_BUFFER_SIZE];
/* Initializes the LCD. */
LCD_Start();
LCD_Position(1u,0u);
LCD_Position(0u,0u);
LCD_PrintString("F1=");
WaveDAC_0_Clock_Start();
WaveDAC_1_Clock_Start();
// Needed for WaveDACs to operate concurrently
// I think this might be a bug with PSoC
WaveDAC_0_Start();
WaveDAC_1_Start();
WaveDAC_0_Stop();
WaveDAC_1_Stop();
USBUART_Start(USBFS_DEVICE, USBUART_5V_OPERATION);
USBUART_CDC_Init();
CyGlobalIntEnable;
while (1) {
if (USBUART_IsConfigurationChanged()) {
if (USBUART_GetConfiguration()) {
USBUART_CDC_Init();
}
}
if (USBUART_GetConfiguration()) {
if (USBUART_DataIsReady()) {
int numArgs;
int desiredFreq, newFreq, fnGenerator;
char mode[USBUART_BUFFER_SIZE] = {0};
Serial_GetString(usbRx);
trimString(usbRx);
numArgs = sscanf(usbRx, "%d %s %d", &fnGenerator, mode, &desiredFreq);
if (numArgs == 3) {
if (!strcmp(mode, "square")) {
newFreq = changeFrequency(desiredFreq, SQUARE, fnGenerator);
sprintf(usbTx, "fn = %d, mode = %s, newFreq = %d\r\n", fnGenerator, mode, newFreq);
} else if (!strcmp(mode, "sine")) {
newFreq = changeFrequency(desiredFreq, SINE, fnGenerator);
sprintf(usbTx, "fn = %d, mode = %s, newFreq = %d\r\n", fnGenerator, mode, newFreq);
} else if (!strcmp(mode, "triangle")) {
newFreq = changeFrequency(desiredFreq, TRIANGLE, fnGenerator);
sprintf(usbTx, "fn = %d, mode = %s, newFreq = %d\r\n", fnGenerator, mode, newFreq);
} else if (!strcmp(mode, "sawtooth")) {
newFreq = changeFrequency(desiredFreq, SAWTOOTH, fnGenerator);
sprintf(usbTx, "fn = %d, mode = %s, newFreq = %d\r\n", fnGenerator, mode, newFreq);
} else if (!strcmp(mode, "dc")) {
newFreq = changeFrequency(desiredFreq, DC, fnGenerator);
sprintf(usbTx, "fn = %d, mode = %s, newFreq = %d\r\n", fnGenerator, mode, newFreq);
} else {
sprintf(usbTx, "Invalid mode: %s\r\n", mode);
}
} else if (numArgs == 2) {
if (!strcmp(mode, "off")) {
if (fnGenerator == 0) {
stopWaveDac(WAVEDAC_LOW_0);
} else if (fnGenerator == 1) {
stopWaveDac(WAVEDAC_LOW_1);
}
sprintf(usbTx, "Stopped WaveDAC %d\r\n", fnGenerator);
} else {
sprintf(usbTx, "Invalid mode: %s\r\n", mode);
}
} else {
sprintf(usbTx, "Invalid command: %s\r\n", usbRx);
}
Serial_PutString(usbTx);
}
}
}
}
