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Board_Data.c
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Board_Data.c
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/************************************************************************/
/* */
/* Board_Data.c -- DP32 Customization Data Declarations */
/* */
/************************************************************************/
/* Author: Gene Apperson */
/* Copyright 2011, Digilent. All rights reserved */
/************************************************************************/
/* File Description: */
/* */
/* This file contains the board specific declartions and data structure */
/* to customize the chipKIT MPIDE for use with a CmodCK1 board using a */
/* PIC32 part in a 44-pin package. */
/* */
/* This code is based on earlier work: */
/* Copyright (c) 2010, 2011 by Mark Sproul */
/* Copyright (c) 2005, 2006 by David A. Mellis */
/* */
/************************************************************************/
/* Revision History: */
/* */
/* 11/28/2011(GeneA): Created by splitting data out of Board_Defs.h */
/* 03/26/2013(KeithV): Modified for DP32 board */
/* */
/************************************************************************/
//* This library is free software; you can redistribute it and/or
//* modify it under the terms of the GNU Lesser General Public
//* License as published by the Free Software Foundation; either
//* version 2.1 of the License, or (at your option) any later version.
//*
//* This library is distributed in the hope that it will be useful,
//* but WITHOUT ANY WARRANTY; without even the implied warranty of
//* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//* Lesser General Public License for more details.
//*
//* You should have received a copy of the GNU Lesser General
//* Public License along with this library; if not, write to the
//* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
//* Boston, MA 02111-1307 USA
/************************************************************************/
#if !defined(BOARD_DATA_C)
#define BOARD_DATA_C
#include <inttypes.h>
/* ------------------------------------------------------------ */
/* Data Tables */
/* ------------------------------------------------------------ */
/* The following declarations define data used in pin mapping. */
/* ------------------------------------------------------------ */
#if defined(OPT_BOARD_DATA)
/* ------------------------------------------------------------ */
/* This table is used to map from port number to the address of
** the TRIS register for the port. This is used for setting the
** pin direction.
*/
const uint32_t port_to_tris_PGM[] = {
NOT_A_PORT, //index value 0 is not used
#if defined(_PORTA)
(uint32_t)&TRISA,
#else
NOT_A_PORT,
#endif
#if defined(_PORTB)
(uint32_t)&TRISB,
#else
NOT_A_PORT,
#endif
#if defined(_PORTC)
(uint32_t)&TRISC,
#else
NOT_A_PORT,
#endif
#if defined(_PORTD)
(uint32_t)&TRISD,
#else
NOT_A_PORT,
#endif
#if defined(_PORTE)
(uint32_t)&TRISE,
#else
NOT_A_PORT,
#endif
#if defined(_PORTF)
(uint32_t)&TRISF,
#else
NOT_A_PORT,
#endif
#if defined(_PORTG)
(uint32_t)&TRISG,
#else
NOT_A_PORT,
#endif
NOT_A_PORT,
};
/* ------------------------------------------------------------ */
/* This table is used to map the digital pin number to the port
** containing that pin. The default mapping is to assign pin numbers
** for every possible port bit in order from PORTA to PORTG.
*/
const uint8_t digital_pin_to_port_PGM[] = {
// Pins 0 through 18
_IOPORT_PB, // 0 J2-0 RB5 TMS/RPB5/USBID/RB5
_IOPORT_PB, // 1 J2-1 RB4 SOSCI/RPB4/RB4
_IOPORT_PA, // 2 J2-2 RA0 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
_IOPORT_PA, // 3 J2-3 RA1 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_IOPORT_PB, // 4 J2-4 RB0 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_IOPORT_PB, // 5 J2-5 RB1 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_IOPORT_PB, // 6 J2-6 RB2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_IOPORT_PB, // 7 J2-7 RB3 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
_IOPORT_PA, // 8 J4-0 RA4 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
_IOPORT_PB, // 9 J4-1 RB4 SOSCI/RPB4/RB4
_IOPORT_PB, // 10 J4-2 RB7 TDI/RPB7/CTED3/PMD5/INT0/RB7
_IOPORT_PB, // 11 J4-3 RB8 TCK/RPB8/SCL1/CTED10/PMD4/RB8
_IOPORT_PB, // 12 J4-4 RB9 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_IOPORT_PB, // 13 J4-5 RB13 AN11/RPB13/CTPLS/PMRD/RB13
_IOPORT_PB, // 14 J4-6 RB14 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_IOPORT_PB, // 15 J4-7 RB15 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
/* ------------------------------------------------------------ */
/* This table is used to map from digital pin number to a bit mask
** for the corresponding bit within the port.
*/
const uint16_t digital_pin_to_bit_mask_PGM[] = {
_BV( 5 ) , // 0 J2-0 RB5 TMS/RPB5/USBID/RB5
_BV( 4 ) , // 1 J2-1 RB4 SOSCI/RPB4/RB4
_BV( 0 ) , // 2 J2-2 RA0 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
_BV( 1 ) , // 3 J2-3 RA1 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_BV( 0 ) , // 4 J2-4 RB0 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_BV( 1 ), // 5 J2-5 RB1 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_BV( 2 ), // 6 J2-6 RB2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_BV( 3 ) , // 7 J2-7 RB3 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
_BV( 4 ) , // 8 J4-0 RA4 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
_BV( 4 ) , // 9 J4-1 RB4 SOSCI/RPB4/RB4
_BV( 7 ) , // 10 J4-2 RB7 TDI/RPB7/CTED3/PMD5/INT0/RB7
_BV( 8 ) , // 11 J4-3 RB8 TCK/RPB8/SCL1/CTED10/PMD4/RB8
_BV( 9 ) , // 12 J4-4 RB9 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_BV( 13 ), // 13 J4-5 RB13 AN11/RPB13/CTPLS/PMRD/RB13
_BV( 14 ), // 14 J4-6 RB14 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_BV( 15 ) , // 15 J4-7 RB15 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
/* ------------------------------------------------------------ */
/* This table is used to map from digital pin number to the output
** compare number, input capture number, and timer external clock
** input associated with that pin.
*/
const uint16_t digital_pin_to_timer_PGM[] = {
NOT_ON_TIMER, // 0 J2-0 RB5 USB TMS/RPB5/USBID/RB5
NOT_ON_TIMER, // 1 J2-1 RB4 INT4, CS2 SOSCI/RPB4/RB4
NOT_ON_TIMER, // 2 J2-2 RA0 CS1 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
NOT_ON_TIMER, // 3 J2-3 RA1 SDI1, RX2 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_TIMER_IC2, // 4 J2-4 RB0 PGD, IC2 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_TIMER_TCK3, // 5 J2-5 RB1 PGC, TCK3 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_TIMER_OC4 | _TIMER_IC5, // 6 J2-6 RB2 OC4, INT2, IC1, SDI2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_TIMER_TCK2 | _TIMER_IC4, // 7 J2-7 RB3 TCK2, IC4, TX1 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
_TIMER_TCK1, // 8 J4-0 RA4 SDO1, TCK1 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
NOT_ON_TIMER, // 9 J4-1 RB4 INT4, CS2 SOSCI/RPB4/RB4
NOT_ON_TIMER, // 10 J4-2 RB7 INT0 TDI/RPB7/CTED3/PMD5/INT0/RB7
_TIMER_OC2 | _TIMER_IC3, // 11 J4-3 RB8 OC2, INT3, IC3, SDO2 TCK/RPB8/SCL1/CTED10/PMD4/RB8
_TIMER_OC3 | _TIMER_TCK5, // 12 J4-4 RB9 OC3, INT1, TCK5 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_TIMER_OC5 | _TIMER_TCK4 | _TIMER_IC1, // 13 J4-5 RB13 OC5, TCK4, IC1, RX1 AN11/RPB13/CTPLS/PMRD/RB13
NOT_ON_TIMER, // 14 J4-6 RB14 SCK1, TX2 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_TIMER_OC1, // 15 J4-7 RB15 OC1, SCK2 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
/* ------------------------------------------------------------ */
/* This table maps from a digital pin number to the corresponding
** PPS register. This register is used to select the peripheral output
** connected to the pin. The register is set to 0 to disconnedt the
** pin from any peripheral so it can be used as GPIO.
** For PIC32MX1xx/2xx series devices, the PPS output select registers
** are arranged as a contiguous series of 32 bit registers. This table
** treats these registers as an array of DWORDs an stores the index
** to the register.
*/
const uint8_t digital_pin_to_pps_out_PGM[] = {
_PPS_OUT(_PPS_RPB5R), // 0 J2-0 RB5 TMS/RPB5/USBID/RB5
_PPS_OUT(_PPS_RPB4R), // 1 J2-1 RB4 SOSCI/RPB4/RB4
_PPS_OUT(_PPS_RPA0R), // 2 J2-2 RA0 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
_PPS_OUT(_PPS_RPA1R), // 3 J2-3 RA1 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_PPS_OUT(_PPS_RPB0R), // 4 J2-4 RB0 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_PPS_OUT(_PPS_RPB1R), // 5 J2-5 RB1 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_PPS_OUT(_PPS_RPB2R), // 6 J2-6 RB2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_PPS_OUT(_PPS_RPB3R), // 7 J2-7 RB3 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
_PPS_OUT(_PPS_RPA4R), // 8 J4-0 RA4 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
_PPS_OUT(_PPS_RPB4R), // 9 J4-1 RB4 SOSCI/RPB4/RB4
_PPS_OUT(_PPS_RPB7R), // 10 J4-2 RB7 TDI/RPB7/CTED3/PMD5/INT0/RB7
_PPS_OUT(_PPS_RPB8R), // 11 J4-3 RB8 TCK/RPB8/SCL1/CTED10/PMD4/RB8
_PPS_OUT(_PPS_RPB9R), // 12 J4-4 RB9 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_PPS_OUT(_PPS_RPB13R), // 13 J4-5 RB13 AN11/RPB13/CTPLS/PMRD/RB13
_PPS_OUT(_PPS_RPB14R), // 14 J4-6 RB14 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_PPS_OUT(_PPS_RPB15R), // 15 J4-7 RB15 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
/* ------------------------------------------------------------ */
/* This table maps from the digital pin number to the value to be
** loaded into a PPS input select register to select that pin.
** It also maps from digital pin number to input/output pin set to
** which the pin belongs. The set mask is in the high four bits,
** the select value is in the low four bits.
** Note: if the PIC32 device has more than four pin sets, or more than
** 16 pin mapping choices per input function, then this table will have
** to be redefined as a table of uint16_t values and the macros used to
** access the table redefined as well.
*/
const uint8_t digital_pin_to_pps_in_PGM[] = {
_PPS_IN(_PPS_RPB5), // 0 J2-0 RB5 TMS/RPB5/USBID/RB5
_PPS_IN(_PPS_RPB4), // 1 J2-1 RB4 SOSCI/RPB4/RB4
_PPS_IN(_PPS_RPA0), // 2 J2-2 RA0 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
_PPS_IN(_PPS_RPA1), // 3 J2-3 RA1 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_PPS_IN(_PPS_RPB0), // 4 J2-4 RB0 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_PPS_IN(_PPS_RPB1), // 5 J2-5 RB1 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_PPS_IN(_PPS_RPB2), // 6 J2-6 RB2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_PPS_IN(_PPS_RPB3), // 7 J2-7 RB3 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
_PPS_IN(_PPS_RPA4), // 8 J4-0 RA4 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
_PPS_IN(_PPS_RPB4), // 9 J4-1 RB4 SOSCI/RPB4/RB4
_PPS_IN(_PPS_RPB7), // 10 J4-2 RB7 TDI/RPB7/CTED3/PMD5/INT0/RB7
_PPS_IN(_PPS_RPB8), // 11 J4-3 RB8 TCK/RPB8/SCL1/CTED10/PMD4/RB8
_PPS_IN(_PPS_RPB9), // 12 J4-4 RB9 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_PPS_IN(_PPS_RPB13), // 13 J4-5 RB13 AN11/RPB13/CTPLS/PMRD/RB13
_PPS_IN(_PPS_RPB14), // 14 J4-6 RB14 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_PPS_IN(_PPS_RPB15), // 15 J4-7 RB15 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
/* ------------------------------------------------------------ */
/* This table maps from a digital pin number to the corresponding
** analog pin number.
*/
//#if defined(_NOT_USED_)
const uint8_t digital_pin_to_analog_PGM[] = {
// Pins 0 through 38
NOT_ANALOG_PIN, // 0 J4-1 RB5 TMS/RPB5/USBID/RB5
NOT_ANALOG_PIN, // 17 J3-9 RB4 SOSCI/RPB4/RB4
_BOARD_AN3, // 9 J3-1 RA0 PGED3/VREF+/CVREF+/AN0/C3INC/RPA0/CTED1/PMD7/RA0
_BOARD_AN4, // 10 J3-2 RA1 PGEC3/VREF-/CVREF-/AN1/RPA1/CTED2/PMD6/RA1
_BOARD_AN5, // 11 J3-3 RB0 PGED1/AN2/C1IND/C2INB/C3IND/RPB0/PMD0/RB0
_BOARD_AN6, // 12 J3-4 RB1 PGEC1/AN3/C1INC/C2INA/RPB1/CTED12/PMD1/RB1
_BOARD_AN7, // 13 J3-5 RB2 AN4/C1INB/C2IND/RPB2/SDA2/CTED13/PMD2/RB2
_BOARD_AN8, // 14 J3-6 RB3 AN5/C1INA/C2INC/RTCC/RPB3/SCL2/PMWR/RB3
NOT_ANALOG_PIN, // 18 J3-10 RA4 SOSCO/RPA4/T1CK/CTED9/PMA1/RA4
NOT_ANALOG_PIN, // 17 J3-9 RB4 SOSCI/RPB4/RB4
NOT_ANALOG_PIN, // 1 J4-2 RB7 TDI/RPB7/CTED3/PMD5/INT0/RB7
NOT_ANALOG_PIN, // 2 J4-3 RB8 TCK/RPB8/SCL1/CTED10/PMD4/RB8
NOT_ANALOG_PIN, // 3 J4-4 RB9 TDO/RPB9/SDA1/CTED4/PMD3/RB9
_BOARD_AN0, // 6 J4-7 RB13 AN11/RPB13/CTPLS/PMRD/RB13
_BOARD_AN1, // 7 J4-8 RB14 CVREF/AN10/C3INB/RPB14/VBUSON/SCK1/CTED5/RB14
_BOARD_AN2, // 8 J4-9 RB15 AN9/C3INA/RPB15/SCK2/CTED6/PMCS1/RB15
};
//#endif
/* ------------------------------------------------------------ */
/* This table is used to map from the analog pin number to the
** actual A/D converter channel used for that pin.
** In the default case, where there is a one-to-one mapping, this
** table isn't needed as the analogInPinToChannel() macro is defined
** to provide the mapping.
*/
//#if defined(_NOT_USED_)
const uint8_t analog_pin_to_channel_PGM[] = {
//* Arduino Pin PIC32 Analog channel
2, //* A3 3
3, //* A4 4
4, //* A5 5
5, //* A6 6
6, //* A7 7
7, //* A8 8
13, //* A0 0
14, //* A1 1
15, //* A2 2
};
//#endif
/* ------------------------------------------------------------ */
/* This table maps from an output compare number as stored in the
** digital_pin_to_timer_PGM table to the digital pin number of the
** pin that OC is connected to. This table is only required for
** devices that support peripheral pin select (PPS), i.e. PIC32MX1xx/2xx
** devices.
*/
const uint8_t output_compare_to_digital_pin_PGM[] = {
0,
PIN_OC1, // A0, B3, B4, B15, B7 ; B15 RPB15R = 5
PIN_OC2, // A1, B5, B1, B11, B8 ; B8 RPB8R = 5
PIN_OC3, // A3, B14, B0, B10, B9 ; B9 RPB9R = 5
PIN_OC4, // A2, B6, A4, B13, B2 ; B2 RPB2R = 5
PIN_OC5, // A2, B6, A4, B13, B2 ; B13 RPB13R = 6
};
/* ------------------------------------------------------------ */
/* This table maps from an external interrupt number to the digital
** pin for that interrupt.
*/
const uint8_t external_int_to_digital_pin_PGM[] = {
NOT_PPS_PIN, // INT0 is not mappable; RB7
PIN_INT1, // A3, B14, B0, B10, B9; B9 INT1R = RPB9 = 4
PIN_INT2, // A2, B6, A4, B13, B2; B2 INT2R = RPB2 = 4
PIN_INT3, // A1, B5, B1, B11, B8; B8 INT3R = RPB8 = 4
PIN_INT4 // A0, B3, B4, B15, B7; B4 INT4R = RPB4 = 2
};
/* ------------------------------------------------------------ */
/* Include Files for Board Customization Functions */
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
/* Board Customization Functions */
/* ------------------------------------------------------------ */
/* */
/* The following can be used to customize the behavior of some */
/* of the core API functions. These provide hooks that can be */
/* used to extend or replace the default behavior of the core */
/* functions. To use one of these functions, add the desired */
/* code to the function skeleton below and then set the value */
/* of the appropriate compile switch above to 1. This will */
/* cause the hook function to be compiled into the build and */
/* to cause the code to call the hook function to be compiled */
/* into the appropriate core function. */
/* */
/* ------------------------------------------------------------ */
/*** _board_init
**
** Parameters:
** none
**
** Return Value:
** none
**
** Errors:
** none
**
** Description:
** This function is called from the core init() function.
** This can be used to perform any board specific init
** that needs to be done when the processor comes out of
** reset and before the user sketch is run.
*/
#if (OPT_BOARD_INIT != 0)
void _board_init(void) {
// Turn Secondary oscillator off as GPIO is needed
OSCCONCLR = _OSCCON_SOSCEN_MASK;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_pinMode
**
** Parameters:
** pin - digital pin number to configure
** mode - mode to which the pin should be configured
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the pinMode
** function. It can perform any special processing needed
** when setting the pin mode. If this function returns zero,
** control will pass through the normal pinMode code. If
** it returns a non-zero value the normal pinMode code isn't
** executed.
*/
#if (OPT_BOARD_DIGITAL_IO != 0)
int _board_pinMode(uint8_t pin, uint8_t mode) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_getPinMode
**
** Parameters:
** pin - digital pin number
** mode - pointer to variable to receive mode value
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the getPinMode
** function. It can perform any special processing needed
** when getting the pin mode. If this function returns zero,
** control will pass through the normal getPinMode code. If
** it returns a non-zero value the normal getPinMode code isn't
** executed.
*/
#if (OPT_BOARD_DIGITAL_IO != 0)
int _board_getPinMode(uint8_t pin, uint8_t * mode) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_digitalWrite
**
** Parameters:
** pin - digital pin number
** val - value to write to the pin
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the digitalWrite
** function. It can perform any special processing needed
** in writing to the pin. If this function returns zero,
** control will pass through the normal digitalWrite code. If
** it returns a non-zero value the normal digitalWrite code isn't
** executed.
*/#if (OPT_BOARD_DIGITAL_IO != 0)
int _board_digitalWrite(uint8_t pin, uint8_t val) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_digitalRead
**
** Parameters:
** pin - digital pin number
** val - pointer to variable to receive pin value
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the digitalRead
** function. It can perform any special processing needed
** in reading from the pin. If this function returns zero,
** control will pass through the normal digitalRead code. If
** it returns a non-zero value the normal digitalRead code isn't
** executed.
*/
#if (OPT_BOARD_DIGITAL_IO != 0)
int _board_digitalRead(uint8_t pin, uint8_t * val) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_analogRead
**
** Parameters:
** pin - analog channel number
** val - pointer to variable to receive analog value
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the analogRead
** function. It can perform any special processing needed
** in reading from the pin. If this function returns zero,
** control will pass through the normal analogRead code. If
** it returns a non-zero value the normal analogRead code isn't
** executed.
*/
#if (OPT_BOARD_ANALOG_READ != 0)
int _board_analogRead(uint8_t pin, int * val) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_analogReference
**
** Parameters:
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the analogReference
** function. It can perform any special processing needed
** to set the reference voltage. If this function returns zero,
** control will pass through the normal analogReference code. If
** it returns a non-zero value the normal analogReference code isn't
** executed.
*/
#if (OPT_BOARD_ANALOG_READ != 0)
int _board_analogReference(uint8_t mode) {
return 0;
}
#endif
/* ------------------------------------------------------------ */
/*** _board_analogWrite
**
** Parameters:
** pin - pin number
** val - analog value to write
**
** Return Value:
** Returns 0 if not handled, !0 if handled.
**
** Errors:
** none
**
** Description:
** This function is called at the beginning of the analogWrite
** function. It can perform any special processing needed
** in writing to the pin. If this function returns zero,
** control will pass through the normal analogWrite code. If
** it returns a non-zero value the normal analogWrite code isn't
** executed.
*/
#if (OPT_BOARD_ANALOG_WRITE != 0)
int _board_analogWrite(uint8_t pin, int val) {
return 0;
}
#endif
#endif // OPT_BOARD_DATA
/* ------------------------------------------------------------ */
#endif // BOARD_DATA_C
/************************************************************************/