3 setup usb connection

.github/workflows/c-cpp.yaml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main # Run on main
+  pull_request:
 
 jobs:
   build:

.vscode/launch.json

@@ -2,16 +2,52 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": "Cortex Debug",
+            "name": "ST-Link Debug",
             "cwd": "${workspaceFolder}",
             "preLaunchCommands": ["make -j8"],
             "executable": "./build/Lora_Receiver.elf",
             "request": "launch",
             "type": "cortex-debug",
             "servertype": "stutil",
-            "device": "STM32F042",
+            "device": "STM32F042F6",
             "interface": "swd",
             "svdFile": "${workspaceFolder}/STM32F0x2.svd",
-        }
+        },
+        {
+            "name": "ST-Link Attach",
+            "cwd": "${workspaceFolder}",
+            "executable": "./build/Lora_Receiver.elf",
+            "request": "attach",
+            "type": "cortex-debug",
+            "servertype": "stutil",
+            "device": "STM32F042F6",
+            "interface": "swd",
+            "svdFile": "${workspaceFolder}/STM32F0x2.svd",
+        },
+        {
+            "name": "J-Link Debug",
+            "cwd": "${workspaceFolder}",
+            "executable": "./build/Lora_Receiver.elf",
+            "request": "launch",
+            "type": "cortex-debug",
+            "servertype": "jlink",
+            "device": "STM32F042F6",
+            "interface": "swd",
+            "runToEntryPoint": "main",
+            "svdFile": "${workspaceFolder}/STM32F0x2.svd",
+            "preLaunchCommands": ["make -j8"]
+          },
+          {
+            "name": "J-Link Attach",
+            "cwd": "${workspaceFolder}",
+            "executable": "./build/Lora_Receiver.elf",
+            "request": "attach",
+            "type": "cortex-debug",
+            "servertype": "jlink",
+            "device": "STM32F042F6",
+            "interface": "swd",
+            "runToEntryPoint": "main",
+            "svdFile": "${workspaceFolder}/STM32F0x2.svd"
+          }
     ]
 }

Core/Inc/gpio.h

@@ -0,0 +1,48 @@
+/************************************************
+* @file    gpio.h 
+* @author  APBashara
+* @date    6/2024
+* 
+* @brief   GPIO Function Prototypes
+***********************************************/
+
+#include "stm32f042x6.h"
+
+/* Structs and Enums --------------------------------------------------------*/
+typedef enum {
+    GPIO_OK,
+    GPIO_ERROR,
+} GPIO_Status;
+
+/* Function Prototypes ------------------------------------------------------*/
+
+/**
+ * @brief Initialize GPIO Pins used in the Telem system
+ * @note PA8 LoRa RST, PA9 LoRa INT
+ * 
+ */
+void GPIO_Init();
+
+/**
+ * @brief Toggle a given GPIO pin on or off
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to toggle
+ */
+void Toggle_Pin(GPIO_TypeDef* GPIO, uint8_t pin);
+
+/**
+ * @brief Set a given GPIO pin high (Set to 1)
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to set high
+ */
+void Set_Pin(GPIO_TypeDef* GPIO, uint8_t pin);
+
+/**
+ * @brief Clear a given GPIO pin (Set to 0)
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to set low
+ */
+void Clear_Pin(GPIO_TypeDef* GPIO, uint8_t pin);

Core/Inc/main.h

@@ -1,69 +1,121 @@
-/* USER CODE BEGIN Header */
-/**
-  ******************************************************************************
-  * @file           : main.h
-  * @brief          : Header for main.c file.
-  *                   This file contains the common defines of the application.
-  ******************************************************************************
-  * @attention
-  *
-  * Copyright (c) 2024 STMicroelectronics.
-  * All rights reserved.
-  *
-  * This software is licensed under terms that can be found in the LICENSE file
-  * in the root directory of this software component.
-  * If no LICENSE file comes with this software, it is provided AS-IS.
-  *
-  ******************************************************************************
-  */
-/* USER CODE END Header */
-
-/* Define to prevent recursive inclusion -------------------------------------*/
+/************************************************
+* @file    main.h 
+* @author  APBashara
+* @date    5/2025
+* 
+* @brief   Main Header File
+***********************************************/
+
+/* Define to prevent recursive inclusion ------------------------------------*/
 #ifndef __MAIN_H
 #define __MAIN_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+/* Includes -----------------------------------------------------------------*/
+#include "stm32f042x6.h"
 
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f0xx_hal.h"
+#include "usb_device.h"
 
-/* Private includes ----------------------------------------------------------*/
-/* USER CODE BEGIN Includes */
+#include "sysclk.h"
+#include "gpio.h"
 
-/* USER CODE END Includes */
+/* System Defines -----------------------------------------------------------*/
+#define LED_PIN                               (4)
+#define LED_GPIO                              (GPIOA)
+#define USB_BUF_LEN                           (128)
 
-/* Exported types ------------------------------------------------------------*/
-/* USER CODE BEGIN ET */
+// LoRa Packet IDs
+#define LORA_SUSPENSION_ID          (0x01) // 50 Hz
+#define LORA_GPS_ID                 (0x02) // 25 Hz
+#define LORA_ENGINE_ID              (0x03) // 20 Hz
+#define LORA_BRAKES_ACCEL_ID        (0x04) // 10 Hz
+#define LORA_TEMPERATURE_ID         (0x05) // 1 Hz
 
-/* USER CODE END ET */
+/* Data Structures  ---------------------------------------------------------*/
+/**
+ * @brief 50 Hz packet with ID 0x01
+ * @note  Contains Front and Rear Suspension Potentiometer values
+ */
+typedef struct {
 
-/* Exported constants --------------------------------------------------------*/
-/* USER CODE BEGIN EC */
+  uint16_t FrontPot;                // Front Right Suspension Damper
+  uint16_t RearPot;                 // Rear Right Suspension Damper
 
-/* USER CODE END EC */
+} LoRa_Suspension_Packet;
 
-/* Exported macro ------------------------------------------------------------*/
-/* USER CODE BEGIN EM */
+/**
+ * @brief 25 Hz packet with ID 0x02
+ * @note  Contains GPS Latitude, Longitude, and Speed
+ */
+typedef struct {
 
-/* USER CODE END EM */
+  int32_t latGPS;                   // Latitude GPS
+  int32_t longGPS;                  // Longitude GPS
+  int32_t Speed;                    // Vehicle GPS Speed
 
-/* Exported functions prototypes ---------------------------------------------*/
-void Error_Handler(void);
+} LoRa_GPS_Packet;
 
-/* USER CODE BEGIN EFP */
+/**
+ * @brief 20 Hz packet with ID 0x03
+ * @note  Contains Engine RPM, Throttle Position, Steering Angle, and Brake Pressure
+ */
+typedef struct {
+
+  uint16_t BrakePressure;           // Brake Pressure
+  uint16_t ThrottleADC;             // Analog Throttle Position
+  uint16_t Steering;                // Steering Angle
+  uint16_t RPM;                     // Engine RPM
+  uint16_t ThrottlePosSensor;       // Throttle Position from ECU
+  uint16_t Lambda;                  // Lambda
 
-/* USER CODE END EFP */
+} LoRa_Engine_Data_Packet;
 
-/* Private defines -----------------------------------------------------------*/
+/**
+ * @brief 10 Hz packet with ID 0x04
+ * @note  Contains Oil Pressure, Front and Rear Brake Temp, and Accelerometer values
+ */
+typedef struct {
 
-/* USER CODE BEGIN Private defines */
+  uint16_t OilPressure;             // Oil Pressure
+  uint16_t FrontBrakeTemp;          // Front Right Brake Temp (F)
+  uint16_t RearBrakeTemp;           // Rear Right Brake Temp (F)
+  uint16_t AccelX;                  // Accelerometer X Axis
+  uint16_t AccelZ;                  // Accelerometer Z Axis
+  uint16_t AccelY;                  // Accelerometer Y Axis
 
-/* USER CODE END Private defines */
+} LoRa_Brakes_Accel_Packet;
+
+/**
+ * @brief 1 Hz packet with ID 0x05
+ * @note  Contains Air and Coolant Temp
+ */
+typedef struct {
+
+  uint16_t AirTemp;                 // Air Temp (F)
+  uint16_t CoolTemp;                // Coolant Temp (F)
+
+} LoRa_Temperature_Packet;
+
+/**
+ * @brief Telemetry Struct to hold all Telemetry Data
+ * @note  Anything not in a LoRa packet should be in this struct
+ */
+typedef struct {
+  // LoRa Packets
+  LoRa_Suspension_Packet Suspension_Packet;           // 50 Hz
+  LoRa_GPS_Packet GPS_Packet;                         // 25 Hz
+  LoRa_Engine_Data_Packet Engine_Data_Packet;         // 20 Hz
+  LoRa_Brakes_Accel_Packet Brakes_Accel_Packet;       // 10 Hz
+  LoRa_Temperature_Packet Temperature_Packet;         // 1 Hz
+
+} Telemetry;
+
+/* Functions prototypes -----------------------------------------------------*/
+
+/**
+  * @brief Handles system errors.
+  * 
+  */
+void Error_Handler(void);
 
-#ifdef __cplusplus
-}
-#endif
 
 #endif /* __MAIN_H */

Core/Inc/stm32f0xx_hal_conf.h

@@ -56,7 +56,7 @@
 /*#define HAL_SMARTCARD_MODULE_ENABLED   */
 /*#define HAL_SMBUS_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */
-/*#define HAL_PCD_MODULE_ENABLED   */
+#define HAL_PCD_MODULE_ENABLED
 #define HAL_CORTEX_MODULE_ENABLED
 #define HAL_DMA_MODULE_ENABLED
 #define HAL_FLASH_MODULE_ENABLED

Core/Inc/stm32f0xx_it.h

@@ -6,7 +6,7 @@
   ******************************************************************************
   * @attention
   *
-  * Copyright (c) 2024 STMicroelectronics.
+  * Copyright (c) 2025 STMicroelectronics.
   * All rights reserved.
   *
   * This software is licensed under terms that can be found in the LICENSE file
@@ -51,6 +51,7 @@ void HardFault_Handler(void);
 void SVC_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void USB_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Src/gpio.c

@@ -0,0 +1,53 @@
+/************************************************
+* @file    gpio.c
+* @author  APBashara
+* @date    6/2024
+* 
+* @brief   Basic GPIO Driver
+***********************************************/
+
+#include "gpio.h"
+
+void GPIO_Init() {
+  // Enable GPIO Clock
+  RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
+  SYSCFG->CFGR1 |= SYSCFG_CFGR1_PA11_PA12_RMP; // Remap PA11 and PA12 for USB
+
+  // Configure USB and LED pins
+  GPIOA->MODER &= ~GPIO_MODER_MODER4;
+  GPIOA->MODER |= (1 << GPIO_MODER_MODER4_Pos);
+  GPIOA->OTYPER &= ~GPIO_OTYPER_OT_4;
+  GPIOA->OSPEEDR &= ~GPIO_OSPEEDR_OSPEEDR4;
+  GPIOA->OSPEEDR |= (1 << GPIO_OSPEEDR_OSPEEDR4_Pos);
+  GPIOA->PUPDR &= ~GPIO_PUPDR_PUPDR4;
+}
+
+/**
+ * @brief Toggle a given GPIO pin on or off
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to toggle
+ */
+void Toggle_Pin(GPIO_TypeDef* GPIO, uint8_t pin) {
+  GPIO->ODR ^= (1 << pin);
+}
+
+/**
+ * @brief Set a given GPIO pin high (Set to 1)
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to set high
+ */
+void Set_Pin(GPIO_TypeDef* GPIO, uint8_t pin) {
+  GPIO->BSRR |= (1 << pin);
+}
+
+/**
+ * @brief Clear a given GPIO pin (Set to 0)
+ * 
+ * @param GPIO [GPIO_TypeDef*] GPIO Port to use
+ * @param pin [uint8_t] Pin to set low
+ */
+void Clear_Pin(GPIO_TypeDef* GPIO, uint8_t pin) {
+  GPIO->BSRR |= (1 << (pin+16));
+}