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commands.c
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commands.c
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/* ************************************************************************
*
* automation / remote commands via serial interface
*
* (c) 2018-2021 by Markus Reschke
*
* ************************************************************************ */
/*
* hints:
* - display output has to be switched from LCD to TTL serial
* before running any of the functions below
* - don't forget to switch the output back to the LCD afterwards
*/
/* local includes */
#include "config.h" /* global configuration */
#ifdef UI_SERIAL_COMMANDS
/*
* local constants
*/
/* source management */
#define COMMANDS_C
/* signaling */
#define SIGNAL_NONE 0 /* none */
#define SIGNAL_ERR 1 /* error / unsupported */
#define SIGNAL_NA 2 /* n/a (not available) */
#define SIGNAL_OK 3 /* ok / success */
/*
* include header files
*/
/* local includes */
#include "common.h" /* common header file */
#include "variables.h" /* global variables */
#include "functions.h" /* external functions */
/*
* local variables
*/
/* control logic */
uint8_t FirstFlag; /* multiple strings in a line */
/* ************************************************************************
* support functions
* ************************************************************************ */
/*
* control logic for sending multiple strings in a line
* - add space before 2nd string and all other following strings
*/
void SpaceLogic(void)
{
if (FirstFlag) /* first string in line */
{
FirstFlag = 0; /* reset flag */
}
else /* another string */
{
Display_Space(); /* send space */
}
}
/*
* show FET/IGBT channel type
*/
void FET_Channel(void)
{
SpaceLogic(); /* space logic */
/* channel type */
if (Check.Type & TYPE_N_CHANNEL) /* n-channel */
{
Display_Char('N'); /* display: N */
}
else /* p-channel */
{
Display_Char('P'); /* display: P */
}
Display_EEString(Channel_str); /* display: -ch */
}
/*
* show FET/IGBT mode
*/
void FET_Mode(void)
{
SpaceLogic(); /* space logic */
if (Check.Type & TYPE_ENHANCEMENT) /* enhancement mode */
{
Display_EEString(Enhancement_str); /* display: enh. */
}
else /* depletion mode */
{
Display_EEString(Depletion_str); /* display: dep. */
}
}
/*
* pinout for 3 pin semiconductors
*
* required:
* - character for pin A
* - character for pin B
* - character for pin C
*/
void SemiPinout(uint8_t A, uint8_t B, uint8_t C)
{
uint8_t n; /* counter */
uint8_t Char; /* character */
/* display pin IDs */
for (n = 0; n <= 2; n++) /* loop through probe pins */
{
if (n == Semi.A) Char = A; /* probe A - ID A */
else if (n == Semi.B) Char = B; /* probe B - ID B */
else Char = C; /* - ID C */
Display_Char(Char); /* send ID */
}
}
/*
* pinout for 2 pin component
*
* required:
* - probe number for pin A
* - probe number for pin B
* - character for pin A
* - character for pin B
*/
void SimplePinout(uint8_t Probe_A, uint8_t Probe_B, uint8_t ID_A, uint8_t ID_B)
{
uint8_t n; /* counter */
uint8_t Char; /* character */
/* display pin IDs */
for (n = 0; n <= 2; n++) /* loop through probe pins */
{
if (n == Probe_A) Char = ID_A; /* probe A - ID A */
else if (n == Probe_B) Char = ID_B; /* probe B - ID B */
else Char = '-'; /* not connected */
Display_Char(Char); /* send ID */
}
}
/*
* return pointer to selected component
*
* returns:
* - pointer to selected component
* - NULL on error
*/
void *SelectedComp(void)
{
void *Comp = NULL; /* return value */
if (Info.Selected == 1) /* #1 */
{
Comp = Info.Comp1; /* pointer to first one */
}
else if (Info.Selected == 2) /* #2 */
{
Comp = Info.Comp2; /* pointer to second one */
}
return Comp;
}
/* ************************************************************************
* probing feedback
* ************************************************************************ */
#if 0
/*
* command: X
* - return X
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_X(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
switch (Check.Found) /* based on component */
{
case COMP_ERROR: /* error */
break;
case COMP_DIODE: /* diode(s) */
break;
case COMP_BJT: /* BJT */
break;
case COMP_FET: /* FET (JFET/MOSFET) */
break;
case COMP_IGBT: /* IGBT */
break;
case COMP_THYRISTOR: /* SCR */
break;
case COMP_TRIAC: /* TRIAC */
break;
case COMP_PUT: /* PUT */
break;
#ifdef SW_UJT
case COMP_UJT: /* UJT */
break;
#endif
case COMP_RESISTOR: /* resistor(s) */
break;
case COMP_CAPACITOR: /* capacitor */
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
return Flag;
}
#endif
/*
* command: MSG
* - return error message
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_MSG(void)
{
uint8_t Flag = SIGNAL_ERR; /* return value */
if (Check.Found == COMP_ERROR) /* we got an error */
{
Flag = SIGNAL_NA; /* n/a by default */
if (Check.Type == TYPE_DISCHARGE) /* discharge failed */
{
Display_EEString_Space(DischargeFailed_str); /* send: Battery? */
Display_ProbeNumber(Check.Probe); /* send probe ID */
Display_Colon();
Display_Space();
Display_Value(Check.U, -3, 'V'); /* send voltage */
Flag = SIGNAL_OK; /* signal success */
}
else if (Check.Type == TYPE_DETECTION) /* detection error */
{
/* simply send: No component found! */
Display_EEString_Space(Failed1_str); /* send: No component */
Display_EEString_Space(Failed2_str); /* send: found! */
Flag = SIGNAL_OK; /* signal success */
}
}
return Flag;
}
/*
* command: TYPE
* - return more specific type of component
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_TYPE(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
FirstFlag = 1; /* reset multi string logic */
switch (Check.Found) /* based on component */
{
case COMP_BJT: /* BJT */
if (Check.Type & TYPE_NPN) /* NPN */
{
Display_EEString(NPN_str); /* send: NPN */
}
else /* PNP */
{
Display_EEString(PNP_str); /* send: PNP */
}
break;
case COMP_FET: /* FET (JFET/MOSFET) */
/* FET type */
SpaceLogic(); /* space logic */
if (Check.Type & TYPE_MOSFET) /* MOSFET */
{
Display_EEString(MOS_str); /* display: MOS */
}
else /* JFET */
{
Display_Char('J'); /* display: J */
}
Display_EEString(FET_str); /* display: FET */
FET_Channel(); /* channel type */
if (Check.Type & TYPE_MOSFET) /* MOSFET only */
{
FET_Mode(); /* FET mode */
}
break;
case COMP_IGBT: /* IGBT */
FET_Channel(); /* channel type */
FET_Mode(); /* IGBT mode */
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
return Flag;
}
/*
* command: HINT
* - return hints about special features
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_HINT(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
FirstFlag = 1; /* reset multi string logic */
switch (Check.Found) /* based on component */
{
case COMP_DIODE: /* diode(s) */
if (Info.Flags & INFO_D_BJT_NPN) /* possible NPN BJT */
{
SpaceLogic(); /* space logic */
Display_EEString(NPN_str); /* send: NPN */
}
if (Info.Flags & INFO_D_BJT_PNP) /* possible PNP BJT */
{
SpaceLogic(); /* space logic */
Display_EEString(PNP_str); /* send: PNP */
}
if (Info.Flags & INFO_D_R_BE) /* R_BE */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_R_be_str); /* send: R_BE */
}
break;
case COMP_BJT: /* BJT */
if (Info.Flags & INFO_BJT_D_FB) /* flyback diode */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_D_fb_str); /* send: D_FB */
}
if (Info.Flags & INFO_BJT_R_BE) /* R_BE */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_R_be_str); /* send: R_BE */
}
if (Check.Type & TYPE_PARASITIC) /* parasitic BJT */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_BJT_str); /* send: BJT */
Display_Char('+'); /* send: + */
}
#ifdef SW_SCHOTTKY_BJT
if (Info.Flags & INFO_BJT_SCHOTTKY) /* Schottky-clamped BJT */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_D_Clamp_str); /* send: D_CLAMP */
}
#endif
break;
case COMP_FET: /* FET (JFET/MOSFET) */
if (Info.Flags & INFO_FET_D_FB) /* flyback diode */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_D_fb_str); /* send: D_FB */
}
if (Check.Type & TYPE_SYMMETRICAL) /* symmetrical Drain and Source */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_SYM_str); /* send: SYM */
}
break;
case COMP_IGBT: /* IGBT */
if (Info.Flags & INFO_FET_D_FB) /* flyback diode */
{
SpaceLogic(); /* space logic */
Display_EEString(Cmd_D_fb_str); /* send: D_FB */
}
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
if ((Flag == SIGNAL_OK) && FirstFlag) /* no features available */
{
Flag = SIGNAL_NA; /* signal N/A */
}
return Flag;
}
/*
* command: MHINT
* - return hints about measurements
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_MHINT(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
FirstFlag = 1; /* reset multi string logic */
switch (Check.Found) /* based on component */
{
case COMP_BJT: /* BJT */
/* hFE test circuit type */
if (Semi.Flags & HFE_COMMON_EMITTER) /* common emitter */
{
/* common emitter circuit */
SpaceLogic();
Display_EEString(Cmd_h_FE_str); /* send: h_FE */
Display_Char('_'); /* send: _ */
Display_Char('e'); /* send: e */
}
else if (Semi.Flags & HFE_COMMON_COLLECTOR) /* common collector */
{
/* common collector circuit */
SpaceLogic();
Display_EEString(Cmd_h_FE_str); /* send: h_FE */
Display_Char('_'); /* send: _ */
Display_Char('c'); /* send: c */
}
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
if ((Flag == SIGNAL_OK) && FirstFlag) /* no hints available */
{
Flag = SIGNAL_NA; /* signal N/A */
}
return Flag;
}
/*
* command: PIN
* - return pinout
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_PIN(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Diode_Type *D; /* pointer to diode */
Resistor_Type *R; /* pointer to resistor */
Capacitor_Type *C; /* pointer to capacitor */
switch (Check.Found) /* based on component */
{
case COMP_DIODE: /* diode(s) */
D = (Diode_Type *)SelectedComp(); /* get pointer */
if (D) /* valid pointer */
{
SimplePinout(D->A, D->C, 'A', 'C'); /* send pinout */
}
break;
case COMP_BJT: /* BJT */
SemiPinout('B', 'C', 'E'); /* send pinout */
break;
case COMP_FET: /* FET (JFET/MOSFET) */
if (Check.Type & TYPE_SYMMETRICAL) /* symmetrical Drain and Source */
{
/* we can't distinguish D and S */
SemiPinout('G', 'x', 'x'); /* send pinout */
}
else /* unsymmetrical Drain and Source */
{
SemiPinout('G', 'D', 'S'); /* send pinout */
}
break;
case COMP_IGBT: /* IGBT */
SemiPinout('G', 'C', 'E'); /* send pinout */
break;
case COMP_THYRISTOR: /* SCR */
SemiPinout('G', 'A', 'C'); /* send pinout */
break;
case COMP_TRIAC: /* TRIAC */
SemiPinout('G', '2', '1'); /* send pinout */
break;
case COMP_PUT: /* PUT */
SemiPinout('G', 'A', 'C'); /* send pinout */
break;
#ifdef SW_UJT
case COMP_UJT: /* UJT */
SemiPinout('E', '2', '1'); /* send pinout */
break;
#endif
case COMP_RESISTOR: /* resistor(s) */
R = (Resistor_Type *)SelectedComp(); /* get pointer */
if (R) /* valid pointer */
{
SimplePinout(R->A, R->B, 'x', 'x'); /* send pinout */
}
break;
case COMP_CAPACITOR: /* capacitor */
C = (Capacitor_Type *)Info.Comp1; /* get pointer */
if (C) /* valid pointer */
{
SimplePinout(C->A, C->B, 'x', 'x'); /* send pinout */
}
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
return Flag;
}
/*
* command: R
* - return resistance value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_R(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Resistor_Type *R; /* pointer to resistor */
if (Check.Found == COMP_RESISTOR) /* resistor(s) */
{
R = (Resistor_Type *)SelectedComp(); /* get pointer */
if (R) /* valid pointer */
{
/* send value */
Display_Value(R->Value, R->Scale, LCD_CHAR_OMEGA);
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
/*
* command: C
* - return capacitance value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_C(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Capacitor_Type *C; /* pointer to resistor */
if (Check.Found == COMP_CAPACITOR) /* capacitor */
{
C = (Capacitor_Type *)Info.Comp1; /* get pointer */
if (C) /* valid pointer */
{
/* send value */
Display_Value(C->Value, C->Scale, 'F');
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
#ifdef SW_INDUCTOR
/*
* command: L
* - return inductance value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_L(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
if (Check.Found == COMP_RESISTOR) /* resistor(s) */
{
/* just for a single resistor */
if (Info.Flags & INFO_R_L) /* inductance measured */
{
/* send value */
Display_Value(Inductor.Value, Inductor.Scale, 'H');
}
else
{
Flag = SIGNAL_NA; /* signal n/a */
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
#endif
#if defined (SW_ESR) || defined (SW_OLD_ESR)
/*
* command: ESR
* - return ESR value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_ESR(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
if (Check.Found == COMP_CAPACITOR) /* capacitor */
{
if (Info.Val1 < UINT16_MAX) /* valid ESR */
{
/* send value */
Display_Value(Info.Val1, -2, LCD_CHAR_OMEGA); /* in 0.01 Ohms */
}
else
{
Flag = SIGNAL_NA; /* signal n/a */
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
#endif
/*
* command: I_L
* - return I_leak value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_I_L(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Capacitor_Type *C; /* pointer to cap */
if (Check.Found == COMP_CAPACITOR) /* capacitor */
{
C = (Capacitor_Type *)Info.Comp1; /* get pointer */
if (C) /* valid pointer */
{
if (C->I_leak > 0) /* got I_leak */
{
/* send value */
Display_Value(C->I_leak, -8, 'A'); /* in 10nA */
}
else
{
Flag = SIGNAL_NA; /* signal n/a */
}
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
/*
* command: V_F
* - return V_f value
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_V_F(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Diode_Type *D = NULL; /* pointer to diode */
switch (Check.Found) /* based on component */
{
case COMP_DIODE: /* diode(s) */
D = (Diode_Type *)SelectedComp(); /* get pointer */
break;
case COMP_BJT: /* BJT */
if (Info.Flags & INFO_BJT_D_FB) /* found diode */
{
D = (Diode_Type *)Info.Comp1; /* get pointer */
}
break;
case COMP_FET: /* FET (JFET/MOSFET) */
case COMP_IGBT: /* IGBT */
if (Info.Flags & INFO_FET_D_FB) /* found diode */
{
D = (Diode_Type *)Info.Comp1; /* get pointer */
}
break;
case COMP_PUT: /* PUT */
Display_Value(AltSemi.U_1, -3, 'V'); /* send Vf */
break;
default: /* unsupported */
Flag = SIGNAL_ERR; /* signal error */
break;
}
if (D) /* valid pointer */
{
/* send Vf */
Display_Value(D->V_f, -3, 'V'); /* in mV */
}
return Flag;
}
/*
* command: V_F2
* - return V_f value of low current measurement
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_V_F2(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
Diode_Type *D; /* pointer to diode */
if (Check.Found == COMP_DIODE) /* diode(s) */
{
D = (Diode_Type *)SelectedComp(); /* get pointer */
if (D) /* valid pointer */
{
/* send value */
Display_Value(D->V_f2, -3, 'V'); /* in mV */
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
/*
* command: C_D
* - return C_D value (capacitance of diode)
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_C_D(void)
{
uint8_t Flag = SIGNAL_OK; /* return value */
uint8_t n;
if (Check.Found == COMP_DIODE) /* diode(s) */
{
/* capacitance values are stored in Caps[0] and Caps[1] */
if (Info.Selected <= 2)
{
n = Info.Selected - 1; /* align with array */
/* send value */
Display_Value(Caps[n].Value, Caps[n].Scale, 'F');
}
}
else /* other component */
{
Flag = SIGNAL_ERR; /* signal error */
}
return Flag;
}
/*
* command: I_R / I_CEO / I_DDS
* - return
* I_R value (diode: reverse leakage current)
* I_CEO value (BJT: collector-emitter current, open base)
* I_DSS value (dep. mode FET: drain-source current, shorted gate)
*
* requires:
* - Cmd: command ID
*
* returns:
* - SIGNAL_ERR on error
* - SIGNAL_NA on n/a
* - SIGNAL_OK on success
*/
uint8_t Cmd_I_R(uint8_t Cmd)
{
uint8_t Flag = SIGNAL_NA; /* return value */
switch (Check.Found) /* based on component */
{
case COMP_DIODE: /* diode(s) */
if (Cmd == CMD_I_R) /* I_R */
{
/* just for a single diode */
if (Info.Flags & INFO_D_I_R) /* I_R measured */
{
Flag = SIGNAL_OK; /* signal ok */
}
}
else /* wrong command */
{
Flag = SIGNAL_ERR; /* signal err */
}
break;
case COMP_BJT: /* BJT */
if (Cmd == CMD_I_CEO) /* I_CEO */
{
Flag = SIGNAL_OK; /* signal ok */
}
else /* wrong command */
{
Flag = SIGNAL_ERR; /* signal err */
}
break;
case COMP_FET: /* FET */
if (Cmd == CMD_I_DSS) /* I_DSS */
{
if (Check.Type & TYPE_DEPLETION) /* dep. mode */
{
Flag = SIGNAL_OK; /* signal ok */
}
}