Karl Fischer / NixieTube

Provides class structure for simple control of Nixie Tubes using custom PCB

NixieTube.cpp@4:aac4aef5726e, 2016-12-15 (annotated)

Committer:
fischk08
Date:
Thu Dec 15 23:06:06 2016 +0000
Revision:
4:aac4aef5726e
Parent:
3:2172e7bc28f7 
final lab version for presentation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fischk08 0:34f3e0f37c55 1 #include "NixieTube.h"
fischk08 0:34f3e0f37c55 2 /* Not Currently Implmented
fischk08 0:34f3e0f37c55 3 #define TUBE_1_LED 0x00800
fischk08 0:34f3e0f37c55 4 #define TUBE_2_LED 0x01000
fischk08 0:34f3e0f37c55 5 #define TUBE_3_LED 0x02000
fischk08 0:34f3e0f37c55 6 #define TUBE_4_LED 0x04000
fischk08 0:34f3e0f37c55 7 #define TUBE_5_LED 0x08000
fischk08 0:34f3e0f37c55 8 #define TUBE_6_LED 0x10000
fischk08 0:34f3e0f37c55 9 */
fischk08 0:34f3e0f37c55 10 #define TUBE_1_CATH 0x20000
fischk08 0:34f3e0f37c55 11 #define TUBE_2_CATH 0x40000
fischk08 0:34f3e0f37c55 12 #define TUBE_3_CATH 0x80000
fischk08 0:34f3e0f37c55 13 #define TUBE_4_CATH 0x100000
fischk08 0:34f3e0f37c55 14 #define TUBE_5_CATH 0x200000
fischk08 0:34f3e0f37c55 15 #define TUBE_6_CATH 0x400000
fischk08 0:34f3e0f37c55 16
fischk08 1:0470cc006ce7 17 NixieTube::NixieTube(PinName sdi, PinName scl, PinName rcl, PinName cen): _sdi(sdi), _scl(scl), _rcl(rcl), _cen(cen){
fischk08 0:34f3e0f37c55 18 digit1 = 1;
fischk08 0:34f3e0f37c55 19 digit2 = 2;
fischk08 0:34f3e0f37c55 20 digit3 = 3;
fischk08 0:34f3e0f37c55 21 digit4 = 4;
fischk08 1:0470cc006ce7 22 curr_tube = 1;
fischk08 3:2172e7bc28f7 23 _cen.period_us(1000);
fischk08 0:34f3e0f37c55 24 _cen.write(1.0);
fischk08 1:0470cc006ce7 25 std::printf("Starting Object\r\n");
fischk08 1:0470cc006ce7 26 tickSeq.attach(this, &NixieTube::nixie_shiftout, 0.001 );
fischk08 1:0470cc006ce7 27 std::printf("Sucess Ticker Started\r\n");
fischk08 0:34f3e0f37c55 28 }
fischk08 0:34f3e0f37c55 29
fischk08 0:34f3e0f37c55 30 NixieTube::~NixieTube()
fischk08 0:34f3e0f37c55 31 {
fischk08 0:34f3e0f37c55 32 }
fischk08 1:0470cc006ce7 33
fischk08 1:0470cc006ce7 34 void NixieTube::nixie_shiftout() {
fischk08 2:bb85bae1c1de 35
fischk08 1:0470cc006ce7 36 switch (curr_tube) {
fischk08 1:0470cc006ce7 37 case 1:
fischk08 1:0470cc006ce7 38 send_nixie_shiftreg(nixie_id_convert(digit1), 0, TUBE_1_CATH);
fischk08 1:0470cc006ce7 39 break;
fischk08 1:0470cc006ce7 40 case 2:
fischk08 1:0470cc006ce7 41 send_nixie_shiftreg(nixie_id_convert(digit2), 0, TUBE_2_CATH);
fischk08 1:0470cc006ce7 42 break;
fischk08 1:0470cc006ce7 43 case 3:
fischk08 1:0470cc006ce7 44 send_nixie_shiftreg(nixie_id_convert(digit3), 0, TUBE_3_CATH);
fischk08 1:0470cc006ce7 45 break;
fischk08 1:0470cc006ce7 46 case 4:
fischk08 1:0470cc006ce7 47 send_nixie_shiftreg(nixie_id_convert(digit4), 0, TUBE_4_CATH);
fischk08 1:0470cc006ce7 48 break;
fischk08 1:0470cc006ce7 49 default:
fischk08 1:0470cc006ce7 50 curr_tube = 1;
fischk08 1:0470cc006ce7 51 }
fischk08 1:0470cc006ce7 52 curr_tube++;
fischk08 1:0470cc006ce7 53 if (curr_tube == 5) {
fischk08 1:0470cc006ce7 54 curr_tube = 1;
fischk08 1:0470cc006ce7 55 }
fischk08 1:0470cc006ce7 56 }
fischk08 1:0470cc006ce7 57
fischk08 0:34f3e0f37c55 58 int NixieTube::nixie_id_convert(int digit) {
fischk08 0:34f3e0f37c55 59 if (digit == 0 || digit == -1) {
fischk08 0:34f3e0f37c55 60 return digit + 1;
fischk08 0:34f3e0f37c55 61 }
fischk08 0:34f3e0f37c55 62 if (digit < 10) {
fischk08 0:34f3e0f37c55 63 return 11 - digit;
fischk08 0:34f3e0f37c55 64 }
fischk08 0:34f3e0f37c55 65 if (digit == 10) {
fischk08 0:34f3e0f37c55 66 return 11;
fischk08 0:34f3e0f37c55 67 }
fischk08 0:34f3e0f37c55 68 return 0;
fischk08 0:34f3e0f37c55 69 }
fischk08 0:34f3e0f37c55 70
fischk08 0:34f3e0f37c55 71 void NixieTube::send_nixie_shiftreg(int cathode_id, int led_bitfield, int tube_bitfield) {
fischk08 0:34f3e0f37c55 72
fischk08 0:34f3e0f37c55 73 int buffer = 0;
fischk08 0:34f3e0f37c55 74 buffer = 1 << (cathode_id-1) | led_bitfield | tube_bitfield;
fischk08 0:34f3e0f37c55 75
fischk08 0:34f3e0f37c55 76 for (int i=23; i >= 0; i--) {
fischk08 0:34f3e0f37c55 77 _sdi = buffer & (1 << i);
fischk08 0:34f3e0f37c55 78 _scl = 1;
fischk08 1:0470cc006ce7 79 _scl = 0;
fischk08 0:34f3e0f37c55 80 }
fischk08 0:34f3e0f37c55 81 _rcl = 1;
fischk08 1:0470cc006ce7 82 _rcl = 0;
fischk08 0:34f3e0f37c55 83
fischk08 0:34f3e0f37c55 84 }
fischk08 1:0470cc006ce7 85 void NixieTube::update_individual_nixie_tube(int ref,int val){
fischk08 0:34f3e0f37c55 86 switch(ref){
fischk08 0:34f3e0f37c55 87 case(1):
fischk08 0:34f3e0f37c55 88 digit1 = val;
fischk08 0:34f3e0f37c55 89 case(2):
fischk08 0:34f3e0f37c55 90 digit2 = val;
fischk08 0:34f3e0f37c55 91 case(3):
fischk08 0:34f3e0f37c55 92 digit3 = val;
fischk08 0:34f3e0f37c55 93 case(4):
fischk08 0:34f3e0f37c55 94 digit4 = val;
fischk08 0:34f3e0f37c55 95 }
fischk08 0:34f3e0f37c55 96 }
fischk08 1:0470cc006ce7 97
fischk08 2:bb85bae1c1de 98 void NixieTube::update_all_nixie_tube(int val4,int val3,int val2,int val1){
fischk08 1:0470cc006ce7 99 digit1 = val1;
fischk08 1:0470cc006ce7 100 digit2 = val2;
fischk08 1:0470cc006ce7 101 digit3 = val3;
fischk08 1:0470cc006ce7 102 digit4 = val4;
fischk08 1:0470cc006ce7 103 }
fischk08 4:aac4aef5726e 104 void NixieTube::set_dim(float duty){
fischk08 0:34f3e0f37c55 105 _cen.write(duty);
fischk08 1:0470cc006ce7 106 }
fischk08 1:0470cc006ce7 107 void NixieTube::debug_digits(){
fischk08 1:0470cc006ce7 108 std::printf("Tube1: %d,Tube2: %d,Tube3: %d,Tube4: %d\r\n",digit1,digit2,digit3,digit4);
fischk08 1:0470cc006ce7 109 }