7-Segment Display Driver class, via an 8-bit shift register (such as the 74HC595)
Fork of 7SegSRDriver by
Diff: 7SegSRDriver.cpp
- Revision:
- 2:5f76214d096c
- Parent:
- 0:1832d0ed8da8
--- a/7SegSRDriver.cpp Sun May 01 17:34:00 2011 +0000 +++ b/7SegSRDriver.cpp Tue Jun 06 13:50:47 2017 +0000 @@ -1,68 +1,264 @@ #include "mbed.h" #include "7SegSRDriver.h" -/* mbed 7-Segment Display Driver Library (via an 8bit Shift Register) - * Copyright (c) 2011 Paul Law - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -// Display should be hooked up to shift register as follows: -// Q0 : Decimal Point, Q1-Q7 : Segments a-g - -SSegSRDriver::SSegSRDriver(PinName srData, PinName srClock, PinName srLatch, bool disp_type): _srData(srData), _srClock(srClock), _srLatch(srLatch) { +/*********************************************** CHRONOMETRE ****************************************************************/ +SSegSRDriver_chronometre::SSegSRDriver_chronometre(PinName srData, PinName srClock, PinName srLatch, bool disp_type): _srData(srData), _srClock(srClock), _srLatch(srLatch) { _disp_type = disp_type; - write_raw(0); + bus_chronometre_1(0); + bus_chronometre_2(0); + bus_chronometre_3(0); + bus_chronometre_4(0); } -void SSegSRDriver::set_type(bool disp_type) { - _disp_type = disp_type; -} - -void SSegSRDriver::clear() { - write_raw(0); +void SSegSRDriver_chronometre::clear() { + bus_chronometre_1(0); + bus_chronometre_2(0); + bus_chronometre_3(0); + bus_chronometre_4(0); } -void SSegSRDriver::write(unsigned char number) { - write(number,0); -} - -void SSegSRDriver::write(unsigned char number, bool dp) { - if (number<16) { - // Find the definition of the number in chardefs, shift left, set dp (LSB) - write_raw((SSegSRDriver_chardefs[number] << 1) | dp); +void SSegSRDriver_chronometre::write_chronometre(unsigned char number, bool dp) { + if (number<10) { + bus_chronometre_1((nbr_envoye[number] << 1) | dp); } } -void SSegSRDriver::write_raw(unsigned char bValue) { +void SSegSRDriver_chronometre::write_chronometre_2(unsigned char number, bool dp) { + if (number<10) { + bus_chronometre_2((nbr_envoye_2[number] << 1) | dp); + } +} - if (!_disp_type) bValue = ~bValue; // Reverse value for Common Anode +void SSegSRDriver_chronometre::write_chronometre_3(unsigned char number, bool dp) { + if (number<10) { + bus_chronometre_3((nbr_envoye_3[number] << 1) | dp); + } +} - if (bValue<=0xFF) { - // Push value to shift register and latch +void SSegSRDriver_chronometre::write_chronometre_4(unsigned char number, bool dp) { + if (number<10) { + bus_chronometre_3((nbr_envoye_4[number] << 1) | dp); + } +} + +void SSegSRDriver_chronometre::bus_chronometre_1(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 _srLatch = 0; - for (int i=7;i>=0;i--) { // Output MSB to LSB + for (int i=7;i>=0;i--) { // on parcours l'octet _srClock = 0; - _srData = (bValue & (1<<i)); + _srData = (Val & (1<<i)); //décoposition de l'octet en bit _srClock = 1; } _srLatch = 1; _srData = 0; } -} \ No newline at end of file + + } + +void SSegSRDriver_chronometre::bus_chronometre_2(unsigned char Value) +{ + + if (Value<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) // on parcours l'octet + { + _srClock = 0; + _srData = (Value & (1<<i)); //décoposition de l'octet + _srClock = 1; + } + _srLatch = 1; + _srData = 0; +} + } + + void SSegSRDriver_chronometre::bus_chronometre_3(unsigned char Value) +{ + + if (Value<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) // on parcours l'octet + { + _srClock = 0; + _srData = (Value & (1<<i)); //décoposition de l'octet + _srClock = 1; + } + _srLatch = 1; + _srData = 0; +} + } + + void SSegSRDriver_chronometre::bus_chronometre_4(unsigned char Value) +{ + + if (Value<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) // on parcours l'octet + { + _srClock = 0; + _srData = (Value & (1<<i)); //décoposition de l'octet + _srClock = 1; + } + _srLatch = 1; + _srData = 0; +} + } + + + /*********************************************** DOMICILE ****************************************************************/ + +SSegSRDriver_domicile::SSegSRDriver_domicile(PinName srData, PinName srClock, PinName srLatch, bool disp_type): _srData(srData), _srClock(srClock), _srLatch(srLatch) { + _disp_type = disp_type; + bus_domicile_1(0); + bus_domicile_2(0); + bus_domicile_3(0); +} + +void SSegSRDriver_domicile::clear() { + bus_domicile_1(0); + bus_domicile_2(0); + bus_domicile_3(0); +} + +void SSegSRDriver_domicile::write_domicile(unsigned char number, bool dp) { + if (number<10) { + bus_domicile_1((nbr_envoye[number] << 1) | dp); + } +} + +void SSegSRDriver_domicile::write_domicile_2(unsigned char number, bool dp) { + if (number<10) { + bus_domicile_2((nbr_envoye_2[number] << 1) | dp); + } +} + +void SSegSRDriver_domicile::write_domicile_3(unsigned char number, bool dp) { + if (number<10) { + bus_domicile_3((nbr_envoye_3[number] << 1) | dp); + } +} + +void SSegSRDriver_domicile::bus_domicile_1(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + + } + +void SSegSRDriver_domicile::bus_domicile_2(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + + } + +void SSegSRDriver_domicile::bus_domicile_3(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + +} + + + /*********************************************** VISITEUR ****************************************************************/ + +SSegSRDriver_visiteur::SSegSRDriver_visiteur(PinName srData, PinName srClock, PinName srLatch, bool disp_type): _srData(srData), _srClock(srClock), _srLatch(srLatch) { + _disp_type = disp_type; + bus_visiteur_1(0); + bus_visiteur_2(0); + bus_visiteur_3(0); +} + +void SSegSRDriver_visiteur::clear() { + bus_visiteur_1(0); + bus_visiteur_2(0); + bus_visiteur_3(0); +} + +void SSegSRDriver_visiteur::write_visiteur(unsigned char number, bool dp) { + if (number<10) { + bus_visiteur_1((nbr_envoye[number] << 1) | dp); + } +} + +void SSegSRDriver_visiteur::write_visiteur_2(unsigned char number, bool dp) { + if (number<10) { + bus_visiteur_2((nbr_envoye_2[number] << 1) | dp); + } +} + +void SSegSRDriver_visiteur::write_visiteur_3(unsigned char number, bool dp) { + if (number<10) { + bus_visiteur_3((nbr_envoye_3[number] << 1) | dp); + } +} + +void SSegSRDriver_visiteur::bus_visiteur_1(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + + } + +void SSegSRDriver_visiteur::bus_visiteur_2(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + + } + +void SSegSRDriver_visiteur::bus_visiteur_3(unsigned char Val) { // Val= les segments a éclairer + + if (Val<=0xFF) {// Si la valeur est inférieur ou égale a 255 + _srLatch = 0; + for (int i=7;i>=0;i--) { // on parcours l'octet + _srClock = 0; + _srData = (Val & (1<<i)); //décoposition de l'octet en bit + _srClock = 1; + } + _srLatch = 1; + _srData = 0; + } + +} + \ No newline at end of file