void ADC_Init (void)
{
//!!!!!!!! PORTB BIT_2 --> GP2_6 ne fonctionne pas !!!!!!!!!! CBE 29/04/2010
//Disable all comparators
DisableCN2;
DisableCN4;
DisableCN6;
DisableCN8;
DisableCN10;
DisableCN11;
PORTSetPinsAnalogIn(IOPORT_B, BIT_2 | BIT_4 | BIT_6 | BIT_8 | BIT_10 | BIT_11); // Set AN pin as analog input.
CloseADC10(); // ensure the ADC is off before setting the configuration
ADC_Config(); /* Configure ADC settings */
EnableADC10(); /* Enable the ADC */
}
virtual void setup_analog_in() {
CloseADC10(); // ERROR: Only open 2 channels?
SetChanADC10(ADC_CH0_NEG_SAMPLEA_NVREF|ADC_CH0_POS_SAMPLEA_AN0);
PORTSetPinsAnalogIn(ltr(), num());
enabled_ADCs |= (typeof(enabled_ADCs)) (1 << bit); // PIC32 SPECIFIC
uint32_t count_enabled = __builtin_popcount(enabled_ADCs); // 32bit cuz we bitshift below
/* 1: Turn module on | ouput in integer | trigger mode auto | enable autosample
* 2: ADC ref external | disable offset test | disable scan mode | perform 2 samples | use dual buffers | use alternate mode
* 3: use ADC internal clock | set sample time
* 4: enable all ANX not in use
* 5: do not assign other channels to scan */
#define PARAM1 ADC_MODULE_ON | ADC_FORMAT_INTG | ADC_CLK_AUTO | ADC_AUTO_SAMPLING_ON
#define PARAM2 ADC_VREF_AVDD_AVSS | ADC_OFFSET_CAL_DISABLE | ADC_SCAN_ON | (count_enabled << _AD1CON2_SMPI_POSITION) | ADC_ALT_BUF_OFF | ADC_ALT_INPUT_OFF // use Channel A only
#define PARAM3 ADC_CONV_CLK_INTERNAL_RC | ADC_SAMPLE_TIME_15
#define PARAM4 ENABLE_AN0_ANA | ENABLE_AN1_ANA
#define PARAM5 SKIP_SCAN_ALL
OpenADC10( PARAM1, PARAM2, PARAM3, enabled_ADCs, ~enabled_ADCs ); // setup ADC
EnableADC10();
}
void hardwareInit(void)
{
// Configure the device for maximum performance, but do not change the PBDIV clock divisor.
// Given the options, this function will change the program Flash wait states,
// RAM wait state and enable prefetch cache, but will not change the PBDIV.
// The PBDIV value is already set via the pragma FPBDIV option above.
SYSTEMConfig(SYS_FREQ, SYS_CFG_WAIT_STATES | SYS_CFG_PCACHE);
PORTSetPinsAnalogIn(IOPORT_A, BIT_1 | BIT_0);
// Could also use mPORTDSetPinsDigitalOut(BIT_6 | BIT_7);
//PORTSetPinsDigitalOut(IOPORT_A, BIT_3 | BIT_2);
PORTSetPinsDigitalOut(IOPORT_A, BIT_10 | BIT_9 | BIT_8 | BIT_7 | BIT_6 | BIT_5 | BIT_4 );
PORTSetPinsAnalogIn(IOPORT_B, BIT_2 | BIT_1 | BIT_0);
PORTSetPinsDigitalOut(IOPORT_B, BIT_15 | BIT_14 | BIT_13 | BIT_12 | BIT_11 | BIT_10 | BIT_9 | BIT_7 | BIT_4 | BIT_3);
PORTSetPinsDigitalIn(IOPORT_B, BIT_8 | BIT_6 | BIT_5);
PORTSetPinsDigitalOut(IOPORT_C, BIT_9 | BIT_7 | BIT_6 | BIT_3 | BIT_2 |BIT_1 | BIT_0);
PORTSetPinsDigitalIn(IOPORT_C, BIT_8 | BIT_5 | BIT_4);
// This is the waggle to set reprogrammable peripheral
// Assume ints & DMA disa
SYSKEY = 0xAA996655;
SYSKEY = 0x556699AA;
U1RXR = 0b0001; // U2.15 RPB6 as RxD1 (PICO) input
RPB7R = 0b0001; // U2.16 RPB7 as TxD1 (POCI) output
SDI1R = 0b0011; // U2.22 RPB11 is SDI1
RPB8R = 0b0011; // U2.17 RPB8 is SDO1
SYSKEY = 0x33333333; // Junk relocks it
OSCCONbits.SOSCEN = 1;
OSCCONbits.SOSCRDY = 1;
// Serial port on UART1
// Note, Mode & Sta have atomic bit clr, set, & inv registers
U1MODEbits.ON = 1; // Ena UART1, per UEN, with UTXEN
U1MODEbits.SIDL = 0; // Continue oper in idle mode
U1MODEbits.IREN = 0; // Disa IrDA
U1MODEbits.RTSMD = 1; // U1RTS_n pin in simplex mode
U1MODEbits.UEN = 0b00; // U1CTS_n & U1RTS_n unused
U1MODEbits.WAKE = 0; // Disa wakeup
U1MODEbits.LPBACK = 0; // Disa loopback
U1MODEbits.ABAUD = 0; // Disa autobaud
U1MODEbits.RXINV = 0; // U1Rx 0 for idle high
U1MODEbits.BRGH = 0; // Std speed 16x, 1: high speed is 4x baud clk
U1MODEbits.PDSEL = 0b00; // 8 bit data, no parity
U1MODEbits.STSEL = 0; // 1 stop bit
U1STAbits.ADM_EN = 0; // Disa automatic address mode detect
U1STAbits.UTXISEL = 0b01; // Interrupt gen when all chars transmitted
U1STAbits.UTXINV = 0; // U1Tx idle is 1.
U1STAbits.URXEN = 1; // Ena U1Rx
U1STAbits.UTXBRK = 0; // Disa Break (Start bit, then 12 0's, Stop)
U1STAbits.UTXEN = 1; // Ena U1Tx
U1STAbits.URXISEL = 0b01; // Interrupt flag asserted while buffer is 1/2 or more full
U1STAbits.ADDEN = 0; // Disa address mode
U1BRG = 162; // 80 for 19200 baud = PBCLK / (16 x (BRG + 1)), PBCLK = 25 MHz @ div / 1, Jitter 0.47%
// 162 for 9600, 325 for 4800
RS485_DE = 0;
RS485_RE_n = 0;
AD1CON1bits.FORM = 0b000; // Integer 16-bit, 10 lsb's
AD1CON1bits.SSRC = 0b111; // Internal ctr ends sampling and starte conver, auto.
AD1CON1bits.ASAM = 1; // Sampling begins immediately after last conversion completes; SAMP bit is automatically set
AD1CON1bits.SAMP = 1; // Ena sampling
AD1CON2bits.VCFG = 0b001; // Vref+ has bandgap ref, use Vss
AD1CON2bits.OFFCAL = 0; // Disa offset cal mode
AD1CON2bits.CSCNA = 0; // Disa scan the inputs
AD1CON2bits.BUFM = 0; // Buffer is one 16-bit word
AD1CON2bits.ALTS = 0; // Always use sample A input mux settings
AD1CON3bits.ADRC = 1; // ADC clk from FRC
AD1CON3bits.SAMC = 0b11111; // 31 x TAD autosample time
AD1CON3bits.ADCS = 0xFF; // 512 x TPB = TAD, TPB from PBCLK
// These don't matter if we scan.
AD1CHSbits.CH0NB = 0; // Sample B Ch 0 neg input is Vrefl
AD1CHSbits.CH0SB = 0b00000; // Select B: AN0
AD1CHSbits.CH0NA = 0; // Sample A Ch 0 neg input is Vrefl
AD1CHSbits.CH0SA = 0b00000; // Select B: AN0
AD1CON1bits.ON = 1; // This must be last step.
// SPI1CONbits.MSTEN = 1; // Master mode. Shd be first command.
// SPI1CONbits.FRMEN = 0; // Framed SPI disa
// SPI1CONbits.MSSEN = 0; // Slave select SPI support disa
// SPI1CONbits.MCLKSEL = 0; // Use PBCLK for BRG
// SPI1CONbits.ENHBUF = 0; // Enhanced buffer disa
// SPI1CONbits.ON = 0; // Turn it off for now
// SPI1CONbits.SIDL = 0; // Continue in Idle
// SPI1CONbits.DISSDO = 0; // Use SDOx
// SPI1CONbits.MODE16 = 0; // 8 bit transfer
// SPI1CONbits.MODE32 = 0; // 8 bit transfer
// SPI1CONbits.SMP = 0; // Sample data in middle of phase
// SPI1CONbits.CKE = 0; // Serial output data changes on transition from idle clock state to active clock state
// SPI1CONbits.SSEN = 0; // Do not use /SS1 pin
// SPI1CONbits.CKP = 0; // Idle clock is low
//
// SPI1CONbits.DISSDI = 0; // Use SDI1 pin
//
// SPI1CON2bits.AUDEN = 0; // Audio protocol disa
// SPI1BRG = 0x100;
// spiIoxConfig();
LED_GREEN = 0;
}
