Jason Chang
/
9v1
Add I2CSlave to ov580 master.
Diff: main.cpp
- Revision:
- 0:605fe136b7ea
- Child:
- 1:ffffa383ba7e
diff -r 000000000000 -r 605fe136b7ea main.cpp --- /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); + } +} +