uint8 bu_start(CB_LIST *buffer)
{
uint8 result = BU_BAD_ARGUMENT;
if (buffer != NULL)
{
if (_buffer == NULL)
{
_buffer = buffer;
isr_1_StartEx(bu_interrupt);
isr_1_ClearPending();
/*
* This delay gives the button pins time to go high.
*/
CyDelay(10);
result = BU_SUCCESS;
}
else
{
result = BU_FAILURE;
}
}
return result;
}
int main()
{
// Enable global interrupts
CyGlobalIntEnable;
// Enable bootloader button
// (need to clear pending interrupt first)
isr_1_ClearPending();
isr_1_StartEx(isr_bootloader);
// Enable analog multiplexer (chooses thermocouple input)
AMux_1_Start();
// Enable op-amp (amplifies thermocouple signal)
Opamp_1_Start();
// Enable ADC (reads amplified signal)
ADC_SAR_Seq_1_Start();
ADC_SAR_Seq_1_StartConvert();
// Enable serial transmission
UART_1_Start();
// To avoid a flash on power-on, the relay pin is configured as a
// high impedance input initially
// Because some guy on the internet says so:
// http://www.cypress.com/forum/psoc-4-architecture/low-initial-drive-state-pwm-components
Pin_Relays_Write(1); // HIGH to turn PNP transistor OFF
Pin_Relays_SetDriveMode(Pin_Relays_DM_STRONG);
for(;;) {
// Read thermocouples and send over serial
// Note that externally (and over serial communication),
// 0 is T1, 1 is T2, and 2 is T3
SendTemperature(0, ADC_OFFSET_0, OPAMP_GAIN_FACTOR_0);
SendTemperature(1, ADC_OFFSET_1, OPAMP_GAIN_FACTOR_1);
SendTemperature(2, ADC_OFFSET_2, OPAMP_GAIN_FACTOR_2);
// Newline for easier debugging
UART_1_UartPutString("\r\n");
// Wait a bit, processing serial command input in between delays
uint8 i;
for (i = 0; i < 5; i++) {
ReadSerialInput();
CyDelay(100);
}
// Safety feature: Ensure that the relays do not stay on for more than
// ~30 seconds without communication from the serial control program
if (relayState) {
if (++relayOnCycles >= 60) {
UART_1_UartPutString("R=0 (inactivity)\r\n");
SetRelays(0);
}
} else {
relayOnCycles = 0;
}
}
}
/*main*/
void main(void)
{
/*Preliminary parts not important*/
LCD_Char_1_Start();
ADC_DelSig_1_Start();
ADC_DelSig_1_StartConvert();
Configure_DMA();
isr_1_StartEx(Buffer_complete);
isr_2_StartEx(LPF_buffer_complete);
ADC_DelSig_1_SetCoherency(ADC_DelSig_1_COHER_MID);
Filter_SetDalign(Filter_STAGEA_DALIGN,Filter_ENABLED);
Filter_SetDalign(Filter_HOLDA_DALIGN,Filter_ENABLED);
Filter_SetCoherency(Filter_STAGEA_COHER,Filter_KEY_MID);
Filter_SetCoherency(Filter_HOLDA_COHER,Filter_KEY_MID);
Filter_SetCoherency(Filter_CHANNEL_A,Filter_KEY_MID);
Filter_SetDalign(Filter_STAGEB_DALIGN,Filter_ENABLED);
Filter_SetDalign(Filter_HOLDB_DALIGN,Filter_ENABLED);
Filter_SetCoherency(Filter_STAGEB_COHER,Filter_KEY_MID);
Filter_SetCoherency(Filter_HOLDB_COHER,Filter_KEY_MID);
Filter_SetCoherency(Filter_CHANNEL_B,Filter_KEY_MID);
CyGlobalIntEnable;
Filter_Start();
/*Writes ADC values to ADC_samples array*/
while(1){
if (isr_BC_flag==1){
arm_cfft_q15(&arm_cfft_sR_q15_len256, Buffer_samples, 0, 1);
arm_cmplx_mag_q15(Buffer_samples, magoutput, fftlength);
CyDmaChEnable(DMA_2_Chan, 1);
isr_BC_flag=0;
isr_1_ClearPending();
}
}
}
