Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.

Read Nate's story Support Nate by buying an official Pastie t-shirt Hide this message

Document@2x
|
Chain_link@2x
|
Arrow_down@2x
|
Spiral_paper@2x
A A A

C/C++       Report abuse 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

int time_voltage_change(void)
{
    unsigned int start = 0;
    unsigned int end = 0;

    /* lower voltage */
    ascodec_write(AS3514_CVDD_DCDC3, ascodec_read(AS3514_CVDD_DCDC3) | (3<<0));

    int delay=50;
    while (delay--);   /* let voltage stabilize at lower setting  */

    /* raise voltage */
    ascodec_write(AS3514_CVDD_DCDC3, ascodec_read(AS3514_CVDD_DCDC3) & ~(3<<0));

    start = TIMER2_VALUE;        /* Hack clock */

    /* wait for voltage to come up to 1.2  */
    while (ascodec_read(AS3514_ADC_1) <= 224);   /* 480 *.0025 = 1.20  */
                                                 /* 224 is value for 8LSB's of 480 */
    end = TIMER2_VALUE;        /* Hack clock */

    return (start - end);
}