//get bus pirate ready after first start
//or clean up after any dirty modules
//modules MUST teardown any PPS functions on the CMD_CLEANUP command
void bpInit(void){
//do this manually so there aren't problems with hardware
//that has I/O on different ports
BP_MOSI_DIR=1;
BP_CLK_DIR=1;
BP_MISO_DIR=1;
BP_CS_DIR=1;
BP_AUX0_DIR=1;
BP_LEDMODE=0; //mode LED OFF
BP_LEDMODE_DIR=0;
#ifdef BUSPIRATEV4
BP_USBLED_OFF();
BPV4_HWI2CPINS_SETUP();
BP_BUTTON_SETUP();
BP_3V3PU_OFF();
//BP_5VPU_OFF();
BP_EEPROM_SETUP();
#endif
#ifdef BUSPIRATEV1A
BP_PIN6_DIR=1; //AUX2... unused
BP_LEDPWR=1; //light power led
BP_LEDPWR_DIR=0;
#endif
BP_AUX_RPOUT = 0; //remove output from AUX pin (PWM/servo modes)
bpConfig.busMode=HIZ;
clearModeConfig(); //reset the mode settings structure
#ifndef BUSPIRATEV1A
BP_PULLUP_OFF();
#endif
BP_VREG_OFF();//disable the VREG
//setup voltage monitoring on ADC. see hardwarevx.h!
BP_ADC_PINSETUP();
//configure the ADC
AD1CON1bits.SSRC = 0b111;// SSRC<3:0> = 111 implies internal
// counter ends sampling and starts
// converting.
AD1CSSL = 0;
AD1CON3 = 0x1F02; // Sample time = 31Tad,
// Tad = 2 Tcy
AD1CON2 = 0;
}
void bp_reset_board_state(void) {
BP_MOSI_DIR = INPUT;
BP_CLK_DIR = INPUT;
BP_MISO_DIR = INPUT;
BP_CS_DIR = INPUT;
BP_AUX0_DIR = INPUT;
bp_disable_mode_led();
bp_enable_usb_led();
#ifdef BUSPIRATEV4
BPV4_HWI2CPINS_SETUP();
BP_BUTTON_SETUP();
bp_disable_3v3_pullup();
eeprom_initialize();
#endif /* BUSPIRATEv4 */
/* Detach source from the currently-set AUX pin. */
BP_AUX_RPOUT = OFF;
bus_pirate_configuration.bus_mode = BP_HIZ;
clear_mode_configuration();
bp_disable_pullup();
bp_disable_voltage_regulator();
bp_adc_pin_setup();
/* Configure the ADC. */
/* Enable automatic sample conversion. */
AD1CON1bits.SSRC = 0b111;
/*
* AD1CSSL : A/D INPUT SCAN SELECT REGISTER
*
* MSB
* 0--0000000000000
* | |||||||||||||
* | +++++++++++++-- CSSL{12:0}: Omit A/D input pins from scan.
* +----------------- CSSL15: Band gap voltage reference not scanned.
*/
AD1CSSL = 0x0000;
/*
* AD1CON3 : A/D CONTROL REGISTER 3
*
* MSB
* 0--1111100000010
* | |||||||||||||
* | |||||++++++++-- ADCS: A/D conversion clock is 3 * Tcy.
* | +++++---------- SAMC: Sample time is 31 * Tad (Tad = 3 * Tcy).
* +----------------- ADRC: Clock is derived from system clock.
*/
AD1CON3 = 0x1F02;
/*
* AD1CON2 : A/D CONTROL REGISTER 2
*
* MSB
* 000--0--x-000000
* ||| | ||||||
* ||| | |||||+-- ALTS: Use MUX A input settings.
* ||| | ||||+--- BUFM: Buffer is one single 16-bits word.
* ||| | ++++---- SMPI: Interrupt on each sample conversion completion.
* ||| +------------ CSCNA: Do not scan inputs.
* +++--------------- VCFG: VR+ is AVdd and VR- is AVss.
*/
AD1CON2 = 0x0000;
}