Liangzhen Lai / Mbed 2 deprecated Orange_Ferrari_board_functional

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Dependencies:   DDRO_Farrari mbed

Fork of DDRO_Farrari by Liangzhen Lai

power.cpp

Committer:
liangzhen
Date:
2014-02-20
Revision:
2:e94460b2149f
Parent:
1:6a820a0ca03b
Child:
3:e1a6e12233dd

File content as of revision 2:e94460b2149f:

#include "dac.h"
#include "power.h"

using namespace std;

#define INA_GAIN 200
/*
float current_meas(bool core)
{     
    float ampv = meas_amp * 3.3;
    float vdrop = ampv / INA_GAIN;
    float res = 1;
    if(core){
        res = 0.25;
    }
    return  vdrop / res;
}
*/


void power_core(float core_volt)
{
    float periph_volt = core_volt;
    float mem_volt = periph_volt;
    if(core_volt > 1){
        periph_volt = 1;
        core_volt = 1;
        mem_volt = 1;
    }
    if(core_volt < 0.9){
        periph_volt = 0.9;
    }
    if(core_volt < 0.8){
        mem_volt = core_volt + 0.05;
    }
    power_chan(PADVDD, periph_volt);
    wait(POWER_UP_TIME);

    // Core and Memory
    power_chan(COREVDD, core_volt);
    wait(POWER_UP_TIME);
    power_chan(MEM1VDD, mem_volt);
    wait(POWER_UP_TIME);
    power_chan(MEM2VDD, mem_volt);
    wait(POWER_UP_TIME);

    // Clock
    power_chan(CLOCKVDD, periph_volt);
    wait(POWER_UP_TIME);
    power_chan(PLLAVDD, periph_volt);
    wait(POWER_UP_TIME);
    
    // Sensor
    power_chan(SENSORVDD, core_volt);//power_chan(SENSORVDD, 1.0);
    wait(POWER_UP_TIME);
    power_chan(SENSORLOWVDD, 0.35);
    wait(POWER_UP_TIME);
    power_chan(SENSORSTRESSVDD, periph_volt);//power_chan(SENSORSTRESSVDD, 1.0);
    wait(POWER_UP_TIME);
}


void power_up(float core_volt)
{
    // The 1.8V supplies MUST be up whenever the 3.3V ones are
    power_chan(ADVDD2, 1.8);
    wait(POWER_UP_TIME);
    power_chan(DVDD2, 1.8);
    wait(POWER_UP_TIME);
    
    float periph_volt = core_volt;
    
    
    if(core_volt > 1){
        periph_volt = 1;
        core_volt = 1;
    }
    if(core_volt < 0.95){
        periph_volt = 0.95;
    }
    
    float mem_volt = periph_volt;
    
    // Other padring
    power_chan(ADVDD, 3.3);
    wait(POWER_UP_TIME);
    power_chan(DVDD, 3.3);
    wait(POWER_UP_TIME);
    power_chan(PADVDD, 1.0);//power_chan(PADVDD, 1.0);
    wait(POWER_UP_TIME);

    // Core and Memory
    power_chan(COREVDD, core_volt);
    wait(POWER_UP_TIME);
    power_chan(MEM1VDD, mem_volt);//power_chan(MEM1VDD, 1.0);
    wait(POWER_UP_TIME);
    power_chan(MEM2VDD, mem_volt);//power_chan(MEM2VDD, 1.0);
    wait(POWER_UP_TIME);

    // Clock
    power_chan(CLOCKVDD, periph_volt);//power_chan(CLOCKVDD, 1.0);
    wait(POWER_UP_TIME);
    power_chan(PLLAVDD, 1.0);//power_chan(PLLAVDD, 1.0);
    wait(POWER_UP_TIME);
    power_chan(RING_OSC_NBIAS, 0.75);
    wait(POWER_UP_TIME);

    // Sensor Supplies
    power_chan(SENSORVDD, core_volt);//power_chan(SENSORVDD, 1.0);
    wait(POWER_UP_TIME);
    power_chan(SENSORLOWVDD, 0.35);
    wait(POWER_UP_TIME);
    power_chan(SENSORSTRESSVDD, 1.0);//power_chan(SENSORSTRESSVDD, 1.0);
    wait(POWER_UP_TIME);

    power_indicator = 1;
}

void power_down()
{

    // Zero/float all inputs, so they are not above DVDD when you lower it
    PORESETn = 0;
    CORERESETn = 0;
    GPIO1.input();
    GPIO2.input();
    GPIO3.input();
    TCK = 0;
    TMS = 0;
    TDI = 0;
    scan_data_in = 0;
    scan_phi = 0;
    scan_phi_bar = 0;
    scan_load_chain = 0;
    scan_load_chip = 0;

    // Core and Memory
    power_chan(COREVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(MEM1VDD, 0);
    wait(POWER_UP_TIME);
    power_chan(MEM2VDD, 0);
    wait(POWER_UP_TIME);

    // Clock
    power_chan(CLOCKVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(PLLAVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(RING_OSC_NBIAS, 0);
    wait(POWER_UP_TIME);

    // Sensor Supplies
    power_chan(SENSORVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(SENSORLOWVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(SENSORSTRESSVDD, 0);
    wait(POWER_UP_TIME);

    // Other padring
    power_chan(ADVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(DVDD, 0);
    wait(POWER_UP_TIME);
    power_chan(PADVDD, 0);
    wait(POWER_UP_TIME);

    // The 1.8V supplies MUST be up whenever the 3.3V ones are
    power_chan(ADVDD2, 0);
    wait(POWER_UP_TIME);
    power_chan(DVDD2, 0);
    wait(POWER_UP_TIME);

    power_indicator = 0;
}