Hardware IO control: mirrors, lock in
Diff: hardwareIO.cpp
- Revision:
- 0:c19dc1d8b225
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hardwareIO.cpp Mon Oct 17 13:23:06 2011 +0000 @@ -0,0 +1,87 @@ +#include "hardwareIO.h" + +HardwareIO IO; // preintantiation of cross-file global object IO + +// -------------------------------------- (0) SETUP ALL IO (call this in the setup() function in main program) + + Serial pc(USBTX, USBRX); // tx, rx + + SPI spiDAC(MOSI_PIN, MISO_PIN, SCK_PIN); // mosi, miso, sclk + DigitalOut csDAC(CS_DAC_MIRRORS); + + DigitalOut Laser_Red(LASER_RED_PIN); + DigitalOut Laser_Green(LASER_GREEN_PIN); + DigitalOut Laser_Blue(LASER_BLUE_PIN); + +void HardwareIO::init(void) { + Laser_Red = 1; + Laser_Green = 0; + Laser_Blue = 0; + + //Serial Communication setup: + pc.baud(115200);//921600); + + // Setup for lock-in amplifier and pwm references: + lockin.init(); + + // Setup the spi for 8 bit data, high steady state clock, + // second edge capture, with a 10MHz clock rate + csDAC = 1; + spiDAC.format(16,0); + spiDAC.frequency(16000000); + + // default initial mirror position: + writeOutX(CENTER_AD_MIRROR_X); + writeOutY(CENTER_AD_MIRROR_Y); +} + +//write on the first DAC, output A (mirror X) +void HardwareIO::writeOutX(int value){ + if(value > MAX_AD_MIRRORS) value = MAX_AD_MIRRORS; + if(value < MIN_AD_MIRRORS) value = MIN_AD_MIRRORS; + + value |= 0x7000; + value &= 0x7FFF; + + csDAC = 0; + spiDAC.write(value); + csDAC = 1; +} + +//write on the first DAC, output B (mirror Y) +void HardwareIO::writeOutY(int value){ + if(value > MAX_AD_MIRRORS) value = MAX_AD_MIRRORS; + if(value < MIN_AD_MIRRORS) value = MIN_AD_MIRRORS; + + value |= 0xF000; + value &= 0xFFFF; + + csDAC = 0; + spiDAC.write(value); + csDAC = 1; +} + +void HardwareIO::setRedPower(int powerValue){ + if(powerValue > 0){ + lockin.setLaserPower(true); + } + else{ + lockin.setLaserPower(false); + } +} +void HardwareIO::setGreenPower(int powerValue){ + if(powerValue > 0){ + Laser_Green = 1; + } + else{ + Laser_Green = 0; + } +} +void HardwareIO::setBluePower(int powerValue){ + if(powerValue > 0){ + Laser_Blue = 1; + } + else{ + Laser_Blue = 0; + } +}