Jon Freeman / Mbed 2 deprecated Loco_10_17_SD

Electric Locomotive control system. Touch screen driver control, includes regenerative braking, drives 4 brushless motors, displays speed MPH, system volts and power

Dependencies:   BSP_DISCO_F746NG FastPWM LCD_DISCO_F746NG SD_DISCO_F746NG TS_DISCO_F746NG mbed

dro.h@0:23cc72b18e74, 2017-11-12 (annotated)

Committer:
JonFreeman
Date:
Sun Nov 12 06:26:29 2017 +0000
Revision:
0:23cc72b18e74
Electric loco controller up to Nov 2017 includes SD odometer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JonFreeman 0:23cc72b18e74 1 /* Updated 12 Nov 2017
JonFreeman 0:23cc72b18e74 2 Jon Freeman
JonFreeman 0:23cc72b18e74 3
JonFreeman 0:23cc72b18e74 4 5" and 7.25" gauge Electric Locomotive Controller - ST DISCO-F746NG
JonFreeman 0:23cc72b18e74 5 Uses built in display and touch screen.
JonFreeman 0:23cc72b18e74 6
JonFreeman 0:23cc72b18e74 7 Display shows 'analogue' moving coil meter movements for :
JonFreeman 0:23cc72b18e74 8 Locomotive speed Miles per Hour
JonFreeman 0:23cc72b18e74 9 System voltage (range 20v - 90v or thereabouts)
JonFreeman 0:23cc72b18e74 10 Power Watts delivered to drive motors.
JonFreeman 0:23cc72b18e74 11
JonFreeman 0:23cc72b18e74 12 Touch screen has three 'buttons', these are currently unused, and are where the meter movements show.
JonFreeman 0:23cc72b18e74 13 Idea is to use two for two horns,
JonFreeman 0:23cc72b18e74 14
JonFreeman 0:23cc72b18e74 15 Display has 'slider' touch control. This drives the loco.
JonFreeman 0:23cc72b18e74 16 Control in central position when not driving or drfting.
JonFreeman 0:23cc72b18e74 17 Moving towards bottom of screen applies regenerative braking - move further down applies harder braking.
JonFreeman 0:23cc72b18e74 18 Moving towards top of screen powers drive motors, move further up applies more torque (current controller implemented)
JonFreeman 0:23cc72b18e74 19 Take finger off and control drifts down to central 'neutral' position.
JonFreeman 0:23cc72b18e74 20 */
JonFreeman 0:23cc72b18e74 21 #define MAX_TOUCHES 6 // Touch screen can decode up to this many simultaneous finger press positions
JonFreeman 0:23cc72b18e74 22 #define NEUTRAL_VAL 150 // Number of pixels
JonFreeman 0:23cc72b18e74 23
JonFreeman 0:23cc72b18e74 24 #define SLIDERX 418 // slider graphic x position
JonFreeman 0:23cc72b18e74 25 #define SLIDERY 2 // slider graphic y position
JonFreeman 0:23cc72b18e74 26 #define SLIDERW 50 // pixel width of slider
JonFreeman 0:23cc72b18e74 27 #define SLIDERH 268 // pixel height of slider
JonFreeman 0:23cc72b18e74 28 const int
JonFreeman 0:23cc72b18e74 29 BUTTON_RAD = (SLIDERW / 2) - 4, // radius of circular 'knob' in slider control
JonFreeman 0:23cc72b18e74 30 MIN_POS = BUTTON_RAD + 5, // top of screen
JonFreeman 0:23cc72b18e74 31 MAX_POS = SLIDERH - (BUTTON_RAD + 1), // bottom of screen
JonFreeman 0:23cc72b18e74 32 CIRC_CTR = SLIDERX + BUTTON_RAD + 4;
JonFreeman 0:23cc72b18e74 33
JonFreeman 0:23cc72b18e74 34 static const double PI = 4.0 * atan(1.0);
JonFreeman 0:23cc72b18e74 35 const double LOCO_HANDBRAKE_ESCAPE_SPEED = 0.5;
JonFreeman 0:23cc72b18e74 36
JonFreeman 0:23cc72b18e74 37 enum {NO_DPS, ONE_DP};
JonFreeman 0:23cc72b18e74 38 // Assign unique number to every button we may use, and keep count of total number of them
JonFreeman 0:23cc72b18e74 39 enum {
JonFreeman 0:23cc72b18e74 40 ENTER, SLIDER, SPEEDO_BUT, VMETER_BUT, AMETER_BUT,
JonFreeman 0:23cc72b18e74 41 NUMOF_BUTTONS} ; // button names
JonFreeman 0:23cc72b18e74 42 enum {
JonFreeman 0:23cc72b18e74 43 STATES, INACTIVE, RUN, NEUTRAL_DRIFT, REGEN_BRAKE, PARK, HANDBRAKE_SLIPPING};
JonFreeman 0:23cc72b18e74 44
JonFreeman 0:23cc72b18e74 45 struct slide { int position; int oldpos; int state; int direction; bool recalc_run; bool handbrake_slipping;
JonFreeman 0:23cc72b18e74 46 double handbrake_effort; double loco_speed; } ;
JonFreeman 0:23cc72b18e74 47 struct point { int x; int y; } ;
JonFreeman 0:23cc72b18e74 48 //struct rect { struct point a, b; } ;
JonFreeman 0:23cc72b18e74 49 struct key { int keynum; int x; int y; bool pressed; } ;
JonFreeman 0:23cc72b18e74 50 struct ky_bd { int count, slider_y; key ky[MAX_TOUCHES + 1]; bool sli; } ;
JonFreeman 0:23cc72b18e74 51