Diff: main.cpp

Revision:

0:605fe136b7ea

Child:

1:ffffa383ba7e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 19 01:51:42 2018 +0000
@@ -0,0 +1,138 @@
+#include "mbed.h"
+
+/*
+FEATURE REQUIREMENTS
+
+- I2C write occurs on 
+
+-Reoccuring enable from app that will prevent the emitters from remaining
+on if the app crashes and a turn off command isn't sent
+    - Can be a counter on the emitter enable > threshold
+
+-Flood/Dot tagging indicated on GPIO3
+    - 0 Flood
+    - 1 DOT
+
+-Fault indication on GPIO4 to indicate to app to reboot
+    - 0 OK
+    - 1 Fault/Reboot
+
+I2C write commands
+Reg:        Information             Condition
+0x00        Emitter enable          0x00        Emitters off
+                                    0x01        Dot on
+                                    0x10        Flood on
+                                    0x11        Flood / Dot on
+
+0x01        Dot fault               Read from LM36011        
+
+0x02        Flood Fault             Read from LM36011
+
+0x03        Kill VCSEL Fault        Define this
+
+*/
+
+// define pins for I2C
+#define dot_sda p2
+#define dot_scl p4
+#define flood_sda p28
+#define flood_scl p3
+#define ov580_sda p30
+#define ov580_scl p31
+#define strobe_dot p23
+#define strobe_flood p24
+#define pwm_1_pin p29
+#define pwm_0_pin p5
+
+// define LED pins
+#define ledRed p12
+#define ledGreen p17
+#define ledBlue p13
+
+// initialize LEDs
+DigitalOut red(ledRed,1);
+DigitalOut green(ledGreen,1);
+DigitalOut blue(ledBlue,1);
+
+// Initialize outputs
+DigitalIn pwm_1(pwm_1_pin,PullNone);
+
+// Initialize inputs
+DigitalIn strobe0(p23,PullNone);
+DigitalIn strobe1(p24,PullNone);
+DigitalIn pwm_0(pwm_0_pin,PullNone);
+DigitalIn vcselFault(p25,PullNone);
+DigitalIn killVcsel(p26,PullNone);
+
+static uint8_t LM36011_addr = 0x64 << 1;  //0xC8
+
+// register names
+static uint8_t enable_reg = 0x01;
+static uint8_t configuration_reg = 0x02;
+static uint8_t brightness_reg = 0x03;
+static uint8_t torch_reg = 0x04;
+static uint8_t flags_reg = 0x05;
+static uint8_t device_id_reset_reg = 0x06;
+
+// register settings
+static uint8_t enable_ir = 0x05;
+static uint8_t disable_ir = 0x20;
+static uint8_t enable_flash_timeout = 0x01;
+
+// level settings
+static uint8_t level_flood_max = 0x66;      // = 1.2 A
+//static uint8_t level_dot_max = 0x5F;      // = 1.03 A
+//static uint8_t level_dot_max = 0x3F;      // = 0.75 A
+//static uint8_t level_dot_max = 0x3C;      // = 0.70 A
+//static uint8_t level_dot_max = 0x15       //0.257 A
+static uint8_t level_dot_max = 0x1F;        // =  352mA
+
+//size_t write_size 2;
+bool err;
+bool on = false;
+bool stacked_error = false;
+bool in_app = false;
+uint64_t stacked_counter = 0;
+bool flip = false;
+bool dot_on = false;
+bool flood_on = false;
+bool pulsed = false;
+
+char lmInit[2] = {enable_reg,enable_ir};
+char lmOff[2] = {enable_reg,disable_ir};
+char lmSafety[2] = {configuration_reg,enable_flash_timeout};
+
+char flashBrightness_dot[2] = {brightness_reg,level_dot_max};
+char flashBrightness_flood[2] = {brightness_reg,level_flood_max};
+
+//create interupts
+InterruptIn strobe_0(p23);  
+InterruptIn strobe_1(p24);  
+
+// i2c declarations
+I2C flood_I2C(flood_sda,flood_scl);
+I2C dot_I2C(dot_sda,dot_scl);
+I2CSlave ov_I2C(ov580_sda,ov580_scl);
+
+// main() runs in its own thread in the OS
+int main() {
+    
+    // set I2C Frequency to 400kHz
+    flood_I2C.frequency(400000);
+    dot_I2C.frequency(400000);
+    
+    // write safety
+    flood_I2C.write(LM36011_addr,lmSafety,2,false);
+    dot_I2C.write(LM36011_addr,lmSafety,2,false);
+    
+    // turn on emitters
+    flood_I2C.write(LM36011_addr,lmInit,2,false);
+    dot_I2C.write(LM36011_addr,lmInit,2,false);
+    
+    while (true) {
+        
+        green = !green;
+        wait(0.5);
+    }
+}
+