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Add GPS reset Logic #67

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Merged
APBashara merged 2 commits into from
May 21, 2025
Merged

Add GPS reset Logic #67

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5146b6a
WIP GPS Reset Pin
APBashara May 20, 2025
5974691
Added GPS reset logic
APBashara May 21, 2025
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2 changes: 2 additions & 0 deletions Core/Inc/main.h
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,8 @@ extern "C" {
// Constant Definitions
#define STATUS_LED_PIN (13)
#define GPS_ADDR (0x42)
#define GPS_RST_PIN (8)
#define LORA_RST_PIN (8)
#define SUS_POT_TRAVEL (50)
#define THERMOCOUPLE_CONVERSION (100)

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18 changes: 13 additions & 5 deletions Core/Src/gpio.c
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Expand Up @@ -24,16 +24,24 @@ void LED_Init() {
}

void GPIO_Init() {
// Enable GPIO A Clock
// Enable GPIO Clocks
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN;

// Set GPIO Pins to Output mode
// Pins reset to push pull mode
GPIOA->MODER &= ~GPIO_MODER_MODE8 & ~GPIO_MODER_MODE9; // Clear RST Pin
// Configure LoRa Reset and Interrupt Pins
GPIOA->MODER &= ~GPIO_MODER_MODE8 & ~GPIO_MODER_MODE9;
GPIOA->MODER |= (0x1 << GPIO_MODER_MODE8_Pos) | (0x0 << GPIO_MODER_MODE9_Pos);
GPIOA->OSPEEDR &= ~GPIO_OSPEEDR_OSPEED8 & ~GPIO_OSPEEDR_OSPEED9;
GPIOA->OSPEEDR |= (0x1 << GPIO_OSPEEDR_OSPEED8_Pos) | (0x1 << GPIO_OSPEEDR_OSPEED9_Pos);
GPIOA->OSPEEDR |= (0x1 << GPIO_OSPEEDR_OSPEED9_Pos);
GPIOA->PUPDR &= ~GPIO_PUPDR_PUPD8 & ~GPIO_PUPDR_PUPD9;
GPIOA->PUPDR |= (0x2 << GPIO_PUPDR_PUPD8_Pos);

// GPS Reset Pin
GPIOB->MODER &= ~GPIO_MODER_MODE8;
GPIOB->MODER |= (0x1 << GPIO_MODER_MODE8_Pos);
GPIOB->OTYPER &= ~GPIO_OTYPER_OT8; // Push Pull
GPIOB->OSPEEDR &= ~GPIO_OSPEEDR_OSPEED8;
GPIOB->PUPDR &= ~GPIO_PUPDR_PUPD8; // No Pull up/down
}

GPIO_Status GPIO_EXTI_Init(GPIO_TypeDef* GPIO, uint8_t pin) {
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9 changes: 8 additions & 1 deletion Core/Src/main.c
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Expand Up @@ -42,7 +42,8 @@ void main() {
GPIO_Init();
DMA_ADC1_Init(&ADC_Buffer);
USART3_Init();
Lora_Init();
Lora_Init();
Clear_Pin(GPIOA, LORA_RST_PIN); // Turn On LoRa Module

// Create Tasks to collect Data
Task_Status &= xTaskCreate(ADC_Task, "ADC_Task", 128, NULL, ADC_PRIORITY, NULL);
Expand Down Expand Up @@ -127,6 +128,12 @@ void GPS_Task() {
GPS_Status status;
volatile GPS_Data data;
const TickType_t GPSFrequency = 40; // 25 Hz

// Reset GPS Module
Clear_Pin(GPIOB, GPS_RST_PIN); // Turn off GPS Power
vTaskDelay(100);
Set_Pin(GPIOB, GPS_RST_PIN); // Turn on GPS Power

vTaskDelay(1000); // Delay for GPS Module to Boot
status = GPS_Init();

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