[STM32] an update of I/O map for LilyGO T3-STM32 [skip ci]

Author: lyusupov

software/firmware/source/SoftRF/src/platform/STM32.cpp

@@ -632,7 +632,35 @@ static void STM32_post_init()
     Serial.println();
     Serial.flush();
   }
-#endif /* ARDUINO_NUCLEO_L073RZ || ARDUINO_GENERIC_WLE5CCUX */
+#elif defined(ARDUINO_GENERIC_WL55CCUX)
+  if (hw_info.model == SOFTRF_MODEL_LABUBU) {
+    Serial.println();
+    Serial.println(F("SoftRF Labubu Edition Power-on Self Test"));
+    Serial.println();
+    Serial.flush();
+
+    Serial.println(F("Built-in components:"));
+
+    Serial.print(F("RADIO   : "));
+    Serial.println(hw_info.rf      == RF_IC_SX1262       ? F("PASS") : F("FAIL"));
+    Serial.print(F("CLK SRC : "));
+    Serial.println(STM32_has_TCXO                        ? F("TCXO") : F("XTAL"));
+    Serial.print(F("DISPLAY : "));
+    Serial.println(hw_info.display != DISPLAY_NONE       ? F("PASS") : F("FAIL"));
+
+    Serial.println();
+    Serial.println(F("External components:"));
+    Serial.print(F("GNSS    : "));
+    Serial.println(hw_info.gnss    != GNSS_MODULE_NONE   ? F("PASS") : F("N/A"));
+    Serial.print(F("BMx280  : "));
+    Serial.println(hw_info.baro    == BARO_MODULE_BMP280 ? F("PASS") : F("N/A"));
+
+    Serial.println();
+    Serial.println(F("Power-on Self Test is complete."));
+    Serial.println();
+    Serial.flush();
+  }
+#endif /* NUCLEO_L073RZ || GENERIC_WLE5CCUX || GENERIC_WL55CCUX */
 
   Serial.println(F("Data output device(s):"));
 

software/firmware/source/SoftRF/src/platform/STM32.h

@@ -267,8 +267,8 @@ typedef struct stm32_backup_struct {
 #define UATSerial             Serial
 #define SerialOutput          Serial
 
-#define SOC_ADC_VOLTAGE_DIV   1    /* TBD */
-#define VREFINT               1200 /* TBD */
+#define SOC_ADC_VOLTAGE_DIV   1     /* TBD */
+#define VREFINT               1212  // mV, STM32WLE5 datasheet value
 
 #include "iomap/Olimex_STM32WL.h"
 
@@ -331,8 +331,8 @@ typedef struct stm32_backup_struct {
 #define UATSerial             Serial
 #define SerialOutput          Serial
 
-#define SOC_ADC_VOLTAGE_DIV   1    /* TBD */
-#define VREFINT               1200 /* TBD */
+#define SOC_ADC_VOLTAGE_DIV   2.3   // T3-STM32 has 100k/100k voltage divider
+#define VREFINT               1212  // mV, STM32WL55 datasheet value
 
 #include "iomap/LilyGO_T3_STM32.h"
 

software/firmware/source/SoftRF/src/platform/iomap/LilyGO_T3_STM32.h

@@ -1,36 +1,37 @@
 
 /* Peripherals */
-#define SOC_GPIO_PIN_CONS_RX  PA10
-#define SOC_GPIO_PIN_CONS_TX  PA9
+#define SOC_GPIO_PIN_CONS_RX  PA10 /* USART1_RX */
+#define SOC_GPIO_PIN_CONS_TX  PA9  /* USART1_TX */
 
-#define SOC_GPIO_PIN_GNSS_RX  PA3
-#define SOC_GPIO_PIN_GNSS_TX  PA2
-#define SOC_GPIO_PIN_GNSS_PPS PB7
+#define SOC_GPIO_PIN_GNSS_RX  PA3  /* USART2_RX */
+#define SOC_GPIO_PIN_GNSS_TX  PA2  /* USART2_TX */
+#define SOC_GPIO_PIN_GNSS_PPS PB5
 
-#define SOC_GPIO_PIN_LED      PB8 // ext. NeoPixel
+#define SOC_GPIO_PIN_LED      PA12 // ext. NeoPixel
 
-#define SOC_GPIO_LED_GREEN    PA0 // active HIGH
-#define SOC_GPIO_LED_RED      PA1 // active HIGH
+#define SOC_GPIO_LED_GREEN    PA0  // active HIGH
+#define SOC_GPIO_LED_RED      PA1  // active HIGH
 #define SOC_GPIO_PIN_STATUS   SOC_GPIO_LED_GREEN
 
-#define SOC_GPIO_PIN_BUZZER   PB4 // ext. buzzer
+#define SOC_GPIO_PIN_BUZZER   PB4  // ext. buzzer
 
-#define SOC_GPIO_PIN_BATTERY  PB3
+#define SOC_GPIO_PIN_BATTERY  PB3  // 100K + 100K voltage divider on VBAT
+#define SOC_GPIO_PIN_SOLAR    PA11 // 100K + 100K voltage divider on SOLAR_IN
 
 /* I2C */
-#define SOC_GPIO_PIN_SDA      PA11
-#define SOC_GPIO_PIN_SCL      PA12
+#define SOC_GPIO_PIN_SDA      PB7  /* I2C1_SDA */
+#define SOC_GPIO_PIN_SCL      PB8  /* I2C1_SCL */
 
 /* SPI */
-#define SOC_GPIO_PIN_MOSI     PA7
-#define SOC_GPIO_PIN_MISO     PA6
-#define SOC_GPIO_PIN_SCK      PA5
+#define SOC_GPIO_PIN_MOSI     PA7  /* SPI1_MOSI */
+#define SOC_GPIO_PIN_MISO     PA6  /* SPI1_MISO */
+#define SOC_GPIO_PIN_SCK      PA5  /* SPI1_SCK  */
 
 /* Micro-SD */
-#define SOC_GPIO_PIN_SD_SS    PA4
+#define SOC_GPIO_PIN_SD_SS    PA4  /* SPI1_NSS  */
 
 /* OLED */
-#define SOC_GPIO_PIN_OLED_SS  PB12
+#define SOC_GPIO_PIN_OLED_SS  PB12 /* SPI2_NSS  */
 #define SOC_GPIO_PIN_OLED_DC  PA8
 
 /* SX1262 */
@@ -42,12 +43,14 @@
 #define SOC_GPIO_TCXO         PB0
 
 /* RF antenna switch */
-#define SOC_GPIO_ANT_RX       PB2 /* active HIGH */
-#define SOC_GPIO_ANT_TX       PB6 /* active HIGH */
+#define SOC_GPIO_ANT_RX       PB2  /* active HIGH */
+#define SOC_GPIO_ANT_TX       PB6  /* active HIGH */
 
 /* button */
-#define SOC_GPIO_PIN_BUTTON   PH3 // BOOT0
+#define SOC_GPIO_PIN_BUTTON   PH3  // BOOT0
 
 /* 32768 Hz crystal */
 #define SOC_GPIO_PIN_XP       PC14
 #define SOC_GPIO_PIN_XN       PC15
+
+/* Spare: PA15 , PC13 */

software/firmware/source/SoftRF/src/platform/nRF52.cpp

@@ -1052,6 +1052,9 @@ static void nRF52_setup()
           if (Wire.endTransmission() == 0) {
             nRF52_board = NRF52_LILYGO_TECHO_PLUS;
           }
+        } else {
+          Wire.beginTransmission(SC7A20H_ADDRESS_L);
+          nRF52_has_imu = (Wire.endTransmission() == 0);
         }
       }
     }
@@ -1703,6 +1706,8 @@ static void nRF52_setup()
 
       case NRF52_ELECROW_TN_M3:
         /* TBD */
+        hw_info.imu     = ACC_SC7A20H;
+        IMU_Time_Marker = millis();
         break;
 
       default: