56 convert adc input to analoginput

firmware/mcal/cli/periph/analog_input.h

@@ -0,0 +1,31 @@
+/// @author Samuel Shi 
+/// @date 2024-11-17
+
+#pragma once
+
+#include <iostream>
+#include "shared/periph/analog_input.h"
+
+namespace mcal::cli::periph{
+
+class AnalogInput : public shared::periph::AnalogInput {
+public:
+    AnalogInput(std::string name) : name_(name) {}
+
+    void Start() override {
+        std::cout << "Reading ADC " << name_ << "..." << std::endl;
+    }
+
+    float Read() override {
+        Start();
+        float adc_val;
+        std::cout << " | Enter an unsigned 32-bit value: ";
+        std::cin >> adc_val;
+        std::cout << " | Obtained value " <<  (adc_val/4095.0f * 3.3f) << std::endl;
+        return adc_val/4095.0f * 3.3f;
+    }
+    private:
+        std::string name_;
+};
+
+}

firmware/mcal/stm32f767/periph/analog_input.h

@@ -0,0 +1,47 @@
+
+
+#pragma once
+
+#include <cstdint>
+
+#include "shared/periph/analog_input.h"
+#include "stm32f7xx_hal.h"
+
+namespace mcal::stm32f767::periph {
+
+class AnalogInput : public shared::periph::AnalogInput {
+private:
+    ADC_HandleTypeDef* hadc_;
+    uint32_t adc_channel_;
+
+public:
+    AnalogInput(ADC_HandleTypeDef* hadc, uint32_t adc_channel)
+        : hadc_(hadc), adc_channel_(adc_channel){};
+
+    void Start() override {
+        ADC_ChannelConfTypeDef adc_config = {
+            .Channel = adc_channel_,
+            .Rank = ADC_REGULAR_RANK_1,
+            .SamplingTime = ADC_SAMPLETIME_28CYCLES,
+            .Offset = 0};
+
+        HAL_ADC_ConfigChannel(hadc_, &adc_config);
+        HAL_ADC_Start(hadc_);
+    }
+
+    float Read() override {
+        /// @todo should there be a standard output range?
+        /// if so, the conversion would require knowing the resolution and
+        /// alignment settings
+
+        /// @todo change this to be non-blocking, currently just for demo
+        Start();
+        HAL_ADC_PollForConversion(hadc_, 1000);
+        uint32_t adc_value = HAL_ADC_GetValue(hadc_);
+        HAL_ADC_Stop(hadc_);
+
+        return adc_value/4095.0f * 3.3f;
+    }
+};
+
+}  // namespace mcal::stm32f767::periph

firmware/projects/Demo/AnalogInput/CMakeLists.txt

@@ -0,0 +1 @@
+target_sources(main PUBLIC main.cc)

firmware/projects/Demo/AnalogInput/bindings.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "shared/periph/analog_input.h"
+
+namespace bindings {
+
+extern shared::periph::AnalogInput& analog_input;
+
+extern void Init();
+
+}  // namespace bindings

firmware/projects/Demo/AnalogInput/main.cc

@@ -0,0 +1,11 @@
+#include "bindings.h"
+
+
+int main(){
+    bindings::Init();
+
+    while (true) {
+        bindings::analog_input.Read();
+    }
+    return 0;
+}

firmware/projects/Demo/AnalogInput/platforms/cli/CMakeLists.txt

@@ -0,0 +1,3 @@
+target_sources(bindings PRIVATE bindings.cc)
+
+target_link_libraries(bindings PUBLIC mcal-cli)

firmware/projects/Demo/AnalogInput/platforms/cli/bindings.cc

@@ -0,0 +1,21 @@
+#include <iostream>
+
+#include "../../bindings.h"
+#include "mcal/cli/periph/analog_input.h"
+#include "shared/periph/analog_input.h"
+
+namespace mcal {
+
+cli::periph::AnalogInput analog_input{"analog input"};
+
+}  // namespace mcal
+
+namespace bindings {
+
+shared::periph::AnalogInput& analog_input = mcal::analog_input;
+
+void Init() {
+    std::cout << "Initializing the CLI..." << std::endl;
+}
+
+}  // namespace bindings

firmware/projects/Demo/AnalogInput/platforms/cli/mcal_conf.cmake

@@ -0,0 +1 @@
+set(MCAL cli)

firmware/projects/Demo/AnalogInput/platforms/stm32f767/CMakeLists.txt

@@ -0,0 +1,3 @@
+target_sources(bindings PRIVATE bindings.cc)
+
+target_link_libraries(bindings PUBLIC mcal-stm32f767)

firmware/projects/Demo/AnalogInput/platforms/stm32f767/bindings.cc

@@ -0,0 +1,21 @@
+#include <iostream>
+
+#include "../../bindings.h"
+#include "mcal/cli/periph/analog_input.h"
+#include "shared/periph/analog_input.h"
+
+namespace mcal {
+
+cli::periph::AnalogInput analog_input{"analog input"};
+
+}  // namespace mcal
+
+namespace bindings {
+
+shared::periph::AnalogInput& analog_input = mcal::analog_input;
+
+void Init() {
+    std::cout << "Initializing the CLI..." << std::endl;
+}
+
+}  // namespace bindings

firmware/projects/Demo/AnalogInput/platforms/stm32f767/mcal_conf.cmake

@@ -0,0 +1 @@
+set(MCAL stm32f767)

firmware/shared/periph/analog_input.h

@@ -0,0 +1,17 @@
+/// @author Samuel Shi 
+/// @date 2024-11-17
+/// Modified from adc.h 
+
+#pragma once
+
+#include "shared/util/peripheral.h"
+
+namespace shared::periph {
+
+class AnalogInput : public util::Peripheral {
+public:
+    virtual void Start() = 0;
+    virtual float Read() = 0;
+};
+
+}  // namespace shared::periph