diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 183 |
1 files changed, 156 insertions, 27 deletions
@@ -21,6 +21,7 @@ */ #include <stdbool.h> +#include <string.h> #include <io430.h> #include <intrinsics.h> @@ -29,45 +30,149 @@ #include "hardware.h" static void InitPorts(void); + static void GlobalInit(void); volatile u16 Timer1; volatile u16 SW1State; volatile u16 SW2State; +enum state { + STOP = 10, + WAIT_VREF = 15, + WAIT_START = 20, + WAIT_ATX_OK = 30, + WAIT_V1P0 = 40, + WAIT_V1P2 = 50, + WAIT_V1P8 = 60, + WAIT_RSMRST = 70, + CK410_VTT_GD = 80, + CPU_RUN = 90, + WAIT_STOP = 100, +}; + +static u16 state; + #ifdef CAN_WAIT_TENSION -//has to be coded on real board -volatile u8 bV1P0 = true; -volatile u8 bV1P2 = true; -volatile u8 bV1P8_DDR = true; -volatile u8 bV2P5 = true; -volatile u8 bVCC3 = true; +static void InitADC10(void); +static void start_conversion(void); +static void get_conversion_result(void); + +# define TENSION_EXPIRED (Timer1 == 0) +# define TENSION_WAIT(t) (tension_ok[t]) + +enum tensions { + VCC3, + V1P8_PGOOD, + V1P0, + V1P2, + V1P8_DDR, + V2P5, + TEMP, + TENSIONS_NUM +}; + +static const u16 inch[] = { + [VCC3] = INCH_5, + [V1P8_PGOOD] = INCH_6, + [V1P0] = INCH_12, + [V1P2] = INCH_13, + [V1P8_DDR] = INCH_14, + [V2P5] = INCH_15, + [TEMP] = INCH_10, +}; + +static unsigned cidx; +static bool tension_ok[TENSIONS_NUM]; + +# ifdef MONITOR_TENSIONS + +static bool monitoring[TENSIONS_NUM]; + +# define init_monitoring() memset(monitoring, 0, sizeof(monitoring)) +# define start_monitoring(t) (monitoring[t] = true) +# define check_tension(t, min, max) \ + case t: \ + tension_ok[t] = ADC10MEM < min || ADC10MEM > max; \ + if (monitoring[t] && !tension_ok[t]) \ + state = STOP; \ + break; + +# else + +# define init_monitoring() +# define start_monitoring(t) +# define check_tension(t, min, max) \ + case t: \ + tension_ok[t] = ADC10MEM < min || ADC10MEM > max; \ + break; + +# endif + +static void InitADC10(void) +{ + // Ports are already initiated with correct values -#define TENSION_EXPIRED (Timer1 == 0) -#define TENSION_WAIT(t) (t) + // ADC10SHT <- what kind of conversion time do we need? -#else + ADC10CTL0 = SREF_1 | ADC10SHT_2 | REFON | REF2_5V | ADC10ON | ADC10IE; + // wait 30ms here -#define TENSION_EXPIRED (0) -#define TENSION_WAIT(t) (Timer1 == 0) + ADC10AE0 = BIT5 | BIT6; + ADC10AE1 = BIT4 | BIT5 | BIT6 | BIT7; // A12 A13 A14 A15 +} + +static void start_conversion(void) +{ + ADC10CTL1 = ADC10CTL1 & ~INCH_15 | inch[cidx]; + ADC10CTL0 |= ENC | ADC10SC; +} + +static void get_conversion_result(void) +{ + switch (cidx) { + /* See the ADC10 notes and InfosPowerSeq.ods for these values */ +#ifdef BRIDGE_5_PERCENT + check_tension(V1P0 , 180, 233) + check_tension(V1P2 , 209, 288) + check_tension(V1P8_DDR, 314, 432) + check_tension(V2P5 , 435, 600) + check_tension(VCC3 , 575, 792) +#else + check_tension(V1P0 , 187, 224) + check_tension(V1P2 , 218, 277) + check_tension(V1P8_DDR, 327, 415) + check_tension(V2P5 , 454, 577) + check_tension(VCC3 , 599, 762) #endif -#define STOP 10 -#define WAIT_START 20 -#define WAIT_ATX_OK 30 -#define WAIT_V1P0 40 -#define WAIT_V1P2 50 -#define WAIT_V1P8 60 -#define WAIT_RSMRST 70 -#define CK410_VTT_GD 80 -#define CPU_RUN 90 -#define WAIT_STOP 100 + case V1P8_PGOOD: + tension_ok[V1P8_PGOOD] = ADC10MEM > 368; + break; + case TEMP: + break; + } + + cidx = (cidx + 1) % ARRAY_SIZE(inch); +} + +#else + +# define InitADC10() +# define start_conversion() +# define get_conversion_result() +# define init_monitoring() +# define start_monitoring(t) + +# define TENSION_EXPIRED (0) +# define TENSION_WAIT(t) (Timer1 == 0) + +#endif int main(void) { - u16 state; WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer to prevent time out reset @@ -75,12 +180,21 @@ int main(void) InitPorts(); GlobalInit(); + InitADC10(); __enable_interrupt(); - state = WAIT_START; + Timer1 = 30; // to allow Vref to settle + state = WAIT_VREF; while (1) { switch (state) { + case WAIT_VREF: + if (Timer1 == 0) { + start_conversion(); + state = WAIT_START; + } + break; + case WAIT_START: if (SW1State > 30) state = WAIT_START + 1; @@ -96,7 +210,9 @@ int main(void) case WAIT_ATX_OK: if (SW1State || TENSION_EXPIRED) state = STOP; - if ((P4IN & ATX_PWROK) && TENSION_WAIT(bV2P5 && bVCC3)) { + if ((P4IN & ATX_PWROK) && TENSION_WAIT(V2P5) && TENSION_WAIT(VCC3)) { + start_monitoring(V2P5); + start_monitoring(VCC3); ClrBit(P1OUT, V1P2_CORE_EN_N); Timer1 = 30; state = WAIT_V1P2; @@ -106,7 +222,8 @@ int main(void) case WAIT_V1P2: if (SW1State || TENSION_EXPIRED) state = STOP; - if (TENSION_WAIT(bV1P2)) { + if (TENSION_WAIT(V1P2)) { + start_monitoring(V1P2); Timer1 = 30; SetBit(P4OUT, V1P8_CMD); state = WAIT_RSMRST; @@ -126,7 +243,9 @@ int main(void) case WAIT_V1P8: if (SW1State || TENSION_EXPIRED) state = STOP; - if (TENSION_WAIT(bV1P8)) { + if (TENSION_WAIT(V1P8_DDR) && TENSION_WAIT(V1P8_PGOOD)) { + start_monitoring(V1P8_DDR); + start_monitoring(V1P8_PGOOD); ClrBit(P2OUT, CPU_VCCP_EN_N); Timer1 = 30; state = WAIT_V1P0; @@ -136,7 +255,8 @@ int main(void) case WAIT_V1P0: if (SW1State || TENSION_EXPIRED) state = STOP; - if (TENSION_WAIT(bV1P0)) { + if (TENSION_WAIT(V1P0)) { + start_monitoring(V1P0); SetBit(P3OUT, VRMPWRGD); ClrBit(P2OUT, GREEN_LED_N); Timer1 = 3; @@ -253,6 +373,13 @@ static void InitPorts(void) } +#pragma vector=ADC10_VECTOR +__interrupt void ADC10_ISR(void) +{ + get_conversion_result(); + start_conversion(); +} + static void GlobalInit(void) { DCOCTL = CALDCO_12MHZ; @@ -266,3 +393,5 @@ static void GlobalInit(void) // 188/187500.0 = 0.001002666666666666 TACCR0 = 188; } + +// vim: et:sw=2:sts=2 |