ComponentTester-1.52m

Signed-off-by: Martin <Ho-Ro@users.noreply.github.com>
Ho-Ro · May 10, 2024 · 209274b · 209274b
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diff --git a/BH1750.c b/BH1750.c
diff --git a/CHANGES b/CHANGES
@@ -2,10 +2,39 @@
 
             Change Log for the Component Tester firmware (m-firmware)
 
-                       (c) 2012-2023 by Markus Reschke
+                       (c) 2012-2024 by Markus Reschke
 
 ------------------------------------------------------------------------------
 
+v1.52m 2024-04
+- Added quick-check tool for diodes and LEDs (SW_DIODE_LED). 
+- Support for BH1750VFI ambient light sensor (HW_BH1750).
+- Fixed protocol issue for addressing chips in read mode in function
+  I2C_WriteByte() for bit-bang I2C.
+- Fixed scaling error in the voltage divider calculation in T2 of the Self
+  Test function.
+- Option for packed output format of font display for test purposes (
+  FONT_PACKED).
+- Added new font font_8x16_alt_hf.h (FONT_8x16_ALT_HF, thanks to
+  Feliciano@EEVblog).
+- Corrected bitmap for O umlaut in font_8x16_iso8859-2_hf.h (thanks to
+  Feliciano@EEVblog).
+- Fixed data byte issue in I2C_ReadByte() for hardware TWI (reported by
+  fail@mikrocontroller.net).
+- Corrected the colors for 0.1 and 0.01 multipliers in Display_ColorCode() (
+  reported by chaoslegion@VRTP)
+- Option to switch temporarily to auto-hold mode after a component is found (
+  in continuous mode, UI_AUTOHOLD_FOUND, suggested by Maniaxx@EEVBlog).
+- Added option to optimize the interrupt vector table to reduce firmware size
+  (Makefile: OPTIMIZE_VECTORS, thanks to Viktor Klimkovich).
+- Improved UJT detection to exclude potentiometers with a specifc resistance
+  (3-15 k) and the wiper turned to one end (reported by wandows@EEVblog).
+- Fixed issue with return value in DataStorage() (thanks to Viktor
+  Klimkovich).
+- Fixed detection issue of small capacitances which was caused by the newly
+  added negative zero offset in LargeCap() (reported by Yuriy_K@EEVblog and
+  Obelix2007@EEVblog).
+
 v1.51m 2023-12
 - Changed GetThirdProbe() into convenience function UpdateProbes2() to reduce
   firmware size and adapted calls in various other functions (suggested by

diff --git a/CHANGES.de b/CHANGES.de
@@ -2,10 +2,41 @@
 
              �nderungen der Component-Tester-Firmware (m-firmware)
 
-                       (c) 2012-2023 by Markus Reschke
+                       (c) 2012-2024 by Markus Reschke
 
 ------------------------------------------------------------------------------
 
+v1.52m 2024-04
+- Schnelltest von Dioden und LEDs (SW_DIODE_LED).
+- Unterst�tzung vom BH1750VFI Umgebungslichtsensor (HW_BH1750).
+- Protokollfehler von IC-Adressierung im Lesemodus in I2C_WriteByte() f�r
+  Bit-Bang-I2C beseitigt.
+- Skalierungsfehler in der Berechnung des Spannungteilers in T2 vom Selbsttest
+  behoben.
+- Option f�r komprimiertes Ausgabeformat bei Testausgabe des Zeichensatzes (
+  FONT_PACKED).
+- Neuer Zeichensatz font_8x16_alt_hf.h (FONT_8x16_ALT_HF, Dank an
+  Feliciano@EEVblog).
+- Bitmap f�r � in font_8x16_iso8859-2_hf.h korrigiert (Dank an
+  Feliciano@EEVblog).
+- Problem mit Datenbyte in I2C_ReadByte() f�r Hardware-TWI beseitigt (
+  gemeldet von fail@mikrocontroller.net).
+- Farben der Multiplikatoren f�r 0,1 und 0,01 in Funktion Display_ColorCode()
+  korrigiert (gemeldet von chaoslegion@VRTP).
+- Option zum tempor�ren Umschalten in den Auto-Hold-Modus nachdem ein Bauteil
+  erkannt wurde (im kontinuierlichen Modus, UI_AUTOHOLD_FOUND, Vorschlag von
+  Maniaxx@EEVBlog).
+- Optimierungsoption f�r Interruptvektortabelle zum Reduzieren der Firmware-
+  gr��e (Makefile: OPTIMIZE_VECTORS, Dank an Viktor Klimkovich).
+- UJT-Erkennung verbessert, d.h. Potis mit einem bestimmten Wert (3-15 k) und
+  auf eine Endposition gestellt werden ausgeschlossen (gemeldet von
+  wandows@EEVblog).
+- Problem mit R�ckgabewert in Funktion DataStorage() gel�st (Dank an Viktor
+  Klimkovich).
+- Problem mit der Erkennung von kleinen Kapazit�ten beseitigt. Wurde durch den
+  neuen negativen Null-Offset in Funktion LargeCap() verursacht (gemeldet von
+  Yuriy_K@EEVblog und Obelix2007@EEVblog).
+
 v1.51m 2023-12
 - Funktion GetThirdProbe() zu Vereinfachungsfunktion UpdateProbes2() ge�ndert
   zum Reduzieren der Firmwaregr��e incl. Anpassungen der Aufrufe (Vorschlag

diff --git a/Clones b/Clones
@@ -74,6 +74,7 @@ Hints:
 - Some GM328A have an ST7735 semi-compatible display which won't run with the
   standard ST7735 driver. On those modules the level shifter is followed by an
   additional IC (U3, some MCU). In this case use the Semi-ST7735 driver.
+  This display doesn't suppport high SPI clock rates.
 - The model with a round PCB uses also an ST7735 semi-compatible display. This
   one comes with a level shifter (CD4050) followed by a shift register (
   74HC164) and some MCU on the main PCB. The display doesn't support high
@@ -560,7 +561,7 @@ to
 
 ------------------------------------------------------------------------------
 
-Multifunction Tester TC-1 and family (T7) with ATmega324/644
+Multifunction Tester TC-1 and family (T7, etc) with ATmega324/644, old variants
 - ATmega324 (very poor pin assignment), 16MHz clock
   later models may have an ATmega644
 - ST7735 color display (bit-bang SPI)
@@ -697,6 +698,118 @@ Pinout for fixed cap for self-adjustment:
 
 ------------------------------------------------------------------------------
 
+Multifunction Tester TC-1 or T7 with ATmega324, newer variant
+- ATmega324, 16MHz clock
+- ST7735 color display (bit-bang SPI)
+- external 2.5V voltage reference (TL431)
+- fixed IR receiver module
+- boost converter for Zener check
+  (runs all the time, non-standard voltage divider 100k/12k,
+  no constant current source, just series resistor)
+- fixed adjustment cap
+  (in case of problems replace MLCC with 220nF film cap)
+- powered by Li-Ion cell 3.7V
+- connector for serial TTL interface (5V?)
+- settings provided by2hry@EEVblog and Feliciano@EEVblog
+
+Hints:
+- Purpose of additional MCU (STC15L104W) is unknown.
+- In case the tester turns off suddenly after the first probing cycle try to
+  enable the workaround option PASSIVE_POWER_CTRL.
+
+Hardware Options:
+#define HW_ZENER
+#define ZENER_DIVIDER_CUSTOM
+#define ZENER_R1         100000
+#define ZENER_R2         12000
+#define ZENER_UNSWITCHED
+#define HW_IR_RECEIVER
+#define HW_ADJUST_CAP
+
+Optionally:
+#define HW_PROBE_ZENER
+#define ZENER_VOLTAGE_MIN     500
+#define ZENER_VOLTAGE_MAX     25500
+
+Workarounds (if required):
+#define PASSIVE_POWER_CTRL              /* if tester turns off suddenly */
+
+Power management settings:
+#define BAT_DIRECT
+#define BAT_OFFSET       0
+#define BAT_WEAK         3600
+#define BAT_LOW          3400
+
+LCD module:
+#define LCD_ST7735                      /* display controller ST7735 */
+#define LCD_GRAPHIC                     /* graphic display */
+#define LCD_COLOR                       /* color display */
+#define LCD_SPI                         /* SPI interface */
+#define LCD_PORT         PORTB          /* port data register */
+#define LCD_DDR          DDRB           /* port data direction register */
+#define LCD_RES          PB4            /* port pin used for /RESX (optional) */
+//#define LCD_CS           PB?            /* port pin used for /CSX (optional) */
+#define LCD_DC           PB3            /* port pin used for D/CX */
+#define LCD_SCL          PB7            /* port pin used for SCL */
+#define LCD_SDA          PB5            /* port pin used for SDA */
+#define LCD_DOTS_X       128            /* number of horizontal dots */
+#define LCD_DOTS_Y       160            /* number of vertical dots */
+#define LCD_OFFSET_X     2              /* enable x offset of 2 or 4 dots */
+#define LCD_OFFSET_Y     1              /* enable y offset of 1 or 2 dots */
+#define LCD_FLIP_X                      /* enable horizontal flip */
+//#define LCD_FLIP_Y                      /* enable vertical flip */
+//#define LCD_ROTATE                      /* switch X and Y (rotate by 90�) */
+#define LCD_LATE_ON                     /* turn on LCD after clearing it */
+#define FONT_10X16_HF                   /* 10x16 font */
+#define SYMBOLS_30X32_HF                /* 30x32 symbols */
+#define SPI_BITBANG                     /* bit-bang SPI */
+#define SPI_PORT         LCD_PORT       /* SPI port data register */
+#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
+#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
+#define SPI_MOSI         LCD_SDA        /* port pin used for MOSI */
+
+Hardware SPI should be also possible.
+
+Pinout for test probes:
+#define TP_ZENER         PA4       /* test pin with 10:1 voltage divider */
+#define TP_REF           PA3       /* test pin for 2.5V reference and relay */
+#define TP_BAT           PA5       /* test pin with 4:1 voltage divider */
+#define TP_CAP           PA7       /* test pin for self-adjustment cap */
+
+Pinout for probe resistors:
+#define R_PORT           PORTC     /* port data register */
+#define R_DDR            DDRC      /* port data direction register */
+#define R_RL_1           PD0       /* Rl (680R) for test pin #1 */
+#define R_RH_1           PD1       /* Rh (470k) for test pin #1 */
+#define R_RL_2           PD2       /* Rl (680R) for test pin #2 */
+#define R_RH_2           PD3       /* Rh (470k) for test pin #2 */
+#define R_RL_3           PD4       /* Rl (680R) for test pin #3 */
+#define R_RH_3           PD5       /* Rh (470k) for test pin #3 */
+
+Pinout for power control:
+#define POWER_PORT       PORTD     /* port data register */
+#define POWER_DDR        DDRD      /* port data direction register */
+#define POWER_CTRL       PD7       /* control pin (1: on / 0: off) */
+
+Pinout for test button:
+#define BUTTON_PORT      PORTB     /* port data register */
+#define BUTTON_DDR       DDRB      /* port data direction register */
+#define BUTTON_PIN       PINB      /* port input pins register */
+#define TEST_BUTTON      PB2       /* test/start push button (low active) */
+
+Pinout for fixed IR detector/decoder:
+#define IR_PORT          PORTD     /* port data register */
+#define IR_DDR           DDRD      /* port data direction register */
+#define IR_PIN           PIND      /* port input pins register */
+#define IR_DATA          PD3       /* data signal */
+
+Pinout for fixed cap for self-adjustment:
+#define ADJUST_PORT      PORTC     /* port data register */
+#define ADJUST_DDR       DDRC      /* port data direction register */
+#define ADJUST_RH        PC6       /* Rh (470k) for fixed cap */
+
+------------------------------------------------------------------------------
+
 Multifunction Tester TC-2 with ATmega324/644
 - ATmega324 or 644, 16MHz clock
 - ST7735 color display (bit-bang SPI)
@@ -714,8 +827,8 @@ Hints:
   modfication needed to run OSHW firmwares.
 - PCB labeled 'T7 PLUS V1.2'
 
-Please use the settings for TC-1 (see above), but swap the pins for the
-test button and and power control:
+Please use the settings for TC-1 (old variants, see above), but swap the pins
+for the test button and and power control:
 #define POWER_CTRL       PD1       /* controls power (1: on / 0: off) */
 #define TEST_BUTTON      PD2       /* test/start push button (low active) */
 

diff --git a/HD44780.c b/HD44780.c
@@ -6,7 +6,7 @@
  *   - 8 bit parallel interface (not supported)
  *   - I2C via PCF8574 based backpack (driving 4 bit parallel interface)
  *
- *   (c) 2015-2022 by Markus Reschke
+ *   (c) 2015-2024 by Markus Reschke
  *
  * ************************************************************************ */
 
@@ -31,7 +31,7 @@
  *    R/W    LCD_RW  (default: P1)
  *    E      LCD_EN1 (default: P2)
  *    LED    LCD_LED (default: P3)
- *  - max. clock for PCF8574 I2C: 100kHz (standard mode)
+ *  - I2C clock mode for PCF8574: standard (100kHz)
  */
 
 
@@ -387,12 +387,13 @@ void PCF8574_Write(uint8_t Byte)
 {
   if (I2C_Start(I2C_START) == I2C_OK)             /* start */
   {
-    I2C.Byte = LCD_I2C_ADDR << 1;       /* address (7 bit & write) */
+    I2C.Byte = LCD_I2C_ADDR << 1;                 /* address (7 bits) & write (0) */
 
-    if (I2C_WriteByte(I2C_ADDRESS) == I2C_ACK)    /* address slave */
+    /* send address & write bit, expect ACK from PCF8574 */
+    if (I2C_WriteByte(I2C_ADDRESS) == I2C_ACK)    /* address PCF8574 */
     {
-      I2C.Byte = Byte;                  /* port pins */
-      I2C_WriteByte(I2C_DATA);          /* send data */
+      I2C.Byte = Byte;                            /* set port pins */
+      I2C_WriteByte(I2C_DATA);                    /* send data */
     }
     /* todo: error handling? */
   }