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Ads7828 driver implementation with example for the NucleoG474. The ex…
…ample uses the same pins as on our custom board on which the driver has been tested.
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| // coding: utf-8 | ||
| /* | ||
| * Copyright (c) 2022, Jonas Kazem Andersen | ||
| * Copyright (c) 2022, Rasmus Kleist Hørlyck Sørensen | ||
| * | ||
| * This file is part of the modm project. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
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| #include <modm/board.hpp> | ||
| #include <modm/processing.hpp> | ||
| #include <modm/driver/adc/ads7828.hpp> | ||
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| using Scl = modm::platform::GpioC6; | ||
| using Sda = modm::platform::GpioC7; | ||
| using I2cMaster = modm::platform::I2cMaster4; | ||
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| using namespace Board; | ||
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| class AdcThread : public modm::pt::Protothread | ||
| { | ||
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| public: | ||
| AdcThread() : adc(data, 0x48) | ||
| { | ||
| } | ||
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| inline bool | ||
| run() | ||
| { | ||
| PT_BEGIN(); | ||
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| while (PT_CALL(adc.ping()) == false) | ||
| { | ||
| MODM_LOG_ERROR << "Could not ping Ads7828" << modm::endl; | ||
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| timeout.restart(std::chrono::milliseconds(1000)); | ||
| PT_WAIT_UNTIL(timeout.isExpired()); | ||
| } | ||
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| while (true) | ||
| { | ||
| MODM_LOG_INFO << "-------------------------------" << modm::endl << modm::endl; | ||
| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch0 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch1)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch1 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch2)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch2 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch3)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch3 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch4)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch4 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch5)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch5 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch6)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch6 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch7)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch7 measuremnt is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| MODM_LOG_INFO << "----Diff Inputs-------------" << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0Ch1)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch0 - Ch1 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch2Ch3)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch2 - Ch3 is\t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch4Ch5)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch4 - Ch5 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch6Ch7)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch6 - Ch7 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch1Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch1 - Ch0 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch3Ch2)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch3 - Ch2 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch5Ch4)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch5 - Ch4 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch7Ch6)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Ch7 - Ch6 is \t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| MODM_LOG_INFO << "---Toggling Power Down and Internal Ref----" << modm::endl; | ||
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| PT_CALL(adc.setPowerDownSelection(modm::ads7828::PowerDown::InternalReferenceOffAdcConverterOff)); | ||
| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Default: \t\t\t\t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.setPowerDownSelection(modm::ads7828::PowerDown::InternalReferenceOnAdcConverterOff)); | ||
| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Internal ref on: \t\t\t %.4f", data.getVoltage(2.5f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.setPowerDownSelection(modm::ads7828::PowerDown::InternalReferenceOffAdcConverterOn)); | ||
| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("No power down \t\t\t\t %.4f", data.getVoltage(3.3f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| PT_CALL(adc.setPowerDownSelection(modm::ads7828::PowerDown::InternalReferenceOnAdcConverterOn)); | ||
| PT_CALL(adc.startMeasurement(modm::ads7828::InputChannel::Ch0)); | ||
| PT_CALL(adc.readConversionResult()); | ||
| MODM_LOG_INFO.printf("Internal ref on, no power down: \t %.4f", data.getVoltage(2.5f)); | ||
| MODM_LOG_INFO << modm::endl; | ||
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| MODM_LOG_INFO << "-------------------------------" << modm::endl << modm::endl; | ||
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| timeout.restart(std::chrono::milliseconds(1000)); | ||
| PT_WAIT_UNTIL(timeout.isExpired()); | ||
| } | ||
| PT_END(); | ||
| } | ||
|
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| private: | ||
| modm::ads7828::Data data; | ||
| modm::Ads7828<I2cMaster> adc; | ||
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| modm::ShortTimeout timeout; | ||
| } adcThread; | ||
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| int | ||
| main() | ||
| { | ||
| Board::initialize(); | ||
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| I2cMaster::connect<Scl::Scl, Sda::Sda>(I2cMaster::PullUps::Internal); | ||
| I2cMaster::initialize<Board::SystemClock, 100_kHz>(); | ||
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| MODM_LOG_INFO << "==========Ads7828 Test==========" << modm::endl; | ||
| MODM_LOG_DEBUG << "Debug logging here" << modm::endl; | ||
| MODM_LOG_INFO << "Info logging here" << modm::endl; | ||
| MODM_LOG_WARNING << "Warning logging here" << modm::endl; | ||
| MODM_LOG_ERROR << "Error logging here" << modm::endl; | ||
| MODM_LOG_INFO << "===============================" << modm::endl; | ||
|
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| while (true) | ||
| { | ||
| adcThread.run(); | ||
| } | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| <library> | ||
| <extends>modm:nucleo-g474re</extends> | ||
| <options> | ||
| <option name="modm:build:build.path">../../../build/nucleo_g474re/ads7828</option> | ||
| </options> | ||
| <modules> | ||
| <module>modm:driver:ads7828</module> | ||
| <module>modm:platform:gpio</module> | ||
| <module>modm:platform:i2c:4</module> | ||
| <module>modm:processing:protothread</module> | ||
| <module>modm:processing:timer</module> | ||
| <module>modm:build:scons</module> | ||
| </modules> | ||
| </library> |
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