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Add AnalogIn and AnalogOut APIs support for STM32H5 (#314)
* fix PWM pin map in context of Timer change * Note about DAC on Nucleo-H503RB * Add ADC and DAC for STM32H5 * Copyright fix * ADC/DAC fix --------- Co-authored-by: Jan Kamidra <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| /* mbed Microcontroller Library | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| ****************************************************************************** | ||
| * | ||
| * Copyright (c) 2015-2024 STMicroelectronics. | ||
| * All rights reserved. | ||
| * | ||
| * This software component is licensed by ST under BSD 3-Clause license, | ||
| * the "License"; You may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at: | ||
| * opensource.org/licenses/BSD-3-Clause | ||
| * | ||
| ****************************************************************************** | ||
| */ | ||
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| #include "mbed_assert.h" | ||
| #include "analogin_api.h" | ||
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| #if DEVICE_ANALOGIN | ||
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| #include "mbed_wait_api.h" | ||
| #include "cmsis.h" | ||
| #include "pinmap.h" | ||
| #include "mbed_error.h" | ||
| #include "PeripheralPins.h" | ||
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| void analogin_clock_configuration(void) | ||
| { | ||
| RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0}; | ||
| PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_ADC; | ||
| PeriphClkInitStruct.AdcDacClockSelection = LL_RCC_ADCDAC_CLKSOURCE_HCLK; | ||
| if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) { | ||
| error("analogin_init HAL_RCCEx_PeriphCLKConfig"); | ||
| } | ||
| } | ||
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| void analogin_init(analogin_t *obj, PinName pin) | ||
| { | ||
| uint32_t function = (uint32_t)NC; | ||
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| // ADC Internal Channels "pins" (Temperature, Vref, Vbat, ...) | ||
| // are described in PinNames.h and PeripheralPins.c | ||
| // Pin value must be between 0xF0 and 0xFF | ||
| if ((pin < 0xF0) || (pin >= (PinName)ALT0)) { | ||
| // Normal channels | ||
| // Get the peripheral name from the pin and assign it to the object | ||
| obj->handle.Instance = (ADC_TypeDef *)pinmap_peripheral(pin, PinMap_ADC); | ||
| // Get the functions (adc channel) from the pin and assign it to the object | ||
| function = pinmap_function(pin, PinMap_ADC); | ||
| // Configure GPIO | ||
| pinmap_pinout(pin, PinMap_ADC); | ||
| } else { | ||
| // Internal channels | ||
| obj->handle.Instance = (ADC_TypeDef *)pinmap_peripheral(pin, PinMap_ADC_Internal); | ||
| function = pinmap_function(pin, PinMap_ADC_Internal); | ||
| // No GPIO configuration for internal channels | ||
| } | ||
| MBED_ASSERT(obj->handle.Instance != (ADC_TypeDef *)NC); | ||
| MBED_ASSERT(function != (uint32_t)NC); | ||
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| analogin_clock_configuration(); | ||
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| obj->channel = STM_PIN_CHANNEL(function); | ||
| obj->differential = STM_PIN_INVERTED(function); | ||
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| // Save pin number for the read function | ||
| obj->pin = pin; | ||
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| // Configure ADC object structures | ||
| obj->handle.State = HAL_ADC_STATE_RESET; | ||
| obj->handle.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV10; | ||
| obj->handle.Init.Resolution = ADC_RESOLUTION_12B; | ||
| obj->handle.Init.ScanConvMode = ADC_SCAN_DISABLE; | ||
| obj->handle.Init.EOCSelection = ADC_EOC_SINGLE_CONV; | ||
| obj->handle.Init.LowPowerAutoWait = DISABLE; | ||
| obj->handle.Init.ContinuousConvMode = DISABLE; | ||
| obj->handle.Init.NbrOfConversion = 1; | ||
| obj->handle.Init.DiscontinuousConvMode = DISABLE; | ||
| obj->handle.Init.NbrOfDiscConversion = 0; | ||
| obj->handle.Init.ExternalTrigConv = ADC_SOFTWARE_START; | ||
| obj->handle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; | ||
| obj->handle.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN; | ||
| obj->handle.Init.OversamplingMode = DISABLE; | ||
| obj->handle.Init.DataAlign = ADC_DATAALIGN_RIGHT; | ||
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| __HAL_RCC_ADC_CLK_ENABLE(); | ||
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| if (HAL_ADC_Init(&obj->handle) != HAL_OK) { | ||
| error("analogin_init HAL_ADC_Init"); | ||
| } | ||
|
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| // Calibration | ||
| HAL_ADCEx_Calibration_Start(&obj->handle, ADC_SINGLE_ENDED); | ||
| } | ||
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| uint16_t adc_read(analogin_t *obj) | ||
| { | ||
| ADC_ChannelConfTypeDef sConfig = {0}; | ||
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| // Configure ADC channel | ||
| sConfig.Rank = ADC_REGULAR_RANK_1; | ||
| sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5; | ||
| sConfig.Offset = 0; | ||
| sConfig.SingleDiff = ADC_SINGLE_ENDED; | ||
| sConfig.OffsetNumber = ADC_OFFSET_NONE; | ||
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| switch (obj->pin) { | ||
| case ADC_TEMP: | ||
| sConfig.Channel = ADC_CHANNEL_TEMPSENSOR; | ||
| sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5; | ||
| break; | ||
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| case ADC_VREF: | ||
| sConfig.Channel = ADC_CHANNEL_VREFINT; | ||
| sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5; | ||
| break; | ||
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| case ADC_VBAT: | ||
| sConfig.Channel = ADC_CHANNEL_VBAT; | ||
| sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5; | ||
| break; | ||
|
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| default: | ||
| switch (obj->channel) { | ||
| case 0: | ||
| sConfig.Channel = ADC_CHANNEL_0; | ||
| break; | ||
| case 1: | ||
| sConfig.Channel = ADC_CHANNEL_1; | ||
| break; | ||
| case 2: | ||
| sConfig.Channel = ADC_CHANNEL_2; | ||
| break; | ||
| case 3: | ||
| sConfig.Channel = ADC_CHANNEL_3; | ||
| break; | ||
| case 4: | ||
| sConfig.Channel = ADC_CHANNEL_4; | ||
| break; | ||
| case 5: | ||
| sConfig.Channel = ADC_CHANNEL_5; | ||
| break; | ||
| case 6: | ||
| sConfig.Channel = ADC_CHANNEL_6; | ||
| break; | ||
| case 7: | ||
| sConfig.Channel = ADC_CHANNEL_7; | ||
| break; | ||
| case 8: | ||
| sConfig.Channel = ADC_CHANNEL_8; | ||
| break; | ||
| case 9: | ||
| sConfig.Channel = ADC_CHANNEL_9; | ||
| break; | ||
| case 10: | ||
| sConfig.Channel = ADC_CHANNEL_10; | ||
| break; | ||
| case 11: | ||
| sConfig.Channel = ADC_CHANNEL_11; | ||
| break; | ||
| case 12: | ||
| sConfig.Channel = ADC_CHANNEL_12; | ||
| break; | ||
| case 13: | ||
| sConfig.Channel = ADC_CHANNEL_13; | ||
| break; | ||
| case 14: | ||
| sConfig.Channel = ADC_CHANNEL_14; | ||
| break; | ||
| case 15: | ||
| sConfig.Channel = ADC_CHANNEL_15; | ||
| break; | ||
| case 16: | ||
| sConfig.Channel = ADC_CHANNEL_16; | ||
| break; | ||
| case 17: | ||
| sConfig.Channel = ADC_CHANNEL_17; | ||
| break; | ||
| case 18: | ||
| sConfig.Channel = ADC_CHANNEL_18; | ||
| break; | ||
| case 19: | ||
| sConfig.Channel = ADC_CHANNEL_19; | ||
| break; | ||
| default: | ||
| return 0; | ||
| } | ||
| } | ||
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| if (HAL_ADC_ConfigChannel(&obj->handle, &sConfig) != HAL_OK) { | ||
| error("HAL_ADC_ConfigChannel issue"); | ||
| } | ||
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| if (HAL_ADC_Start(&obj->handle) != HAL_OK) { | ||
| error("HAL_ADC_Start issue"); | ||
| } | ||
|
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| // Wait end of conversion and get value | ||
| uint16_t adcValue = 0; | ||
| if (HAL_ADC_PollForConversion(&obj->handle, 10) == HAL_OK) { | ||
| adcValue = (uint16_t)HAL_ADC_GetValue(&obj->handle); | ||
| } | ||
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| LL_ADC_SetCommonPathInternalCh(__LL_ADC_COMMON_INSTANCE((&obj->handle)->Instance), LL_ADC_PATH_INTERNAL_NONE); | ||
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| if (HAL_ADC_Stop(&obj->handle) != HAL_OK) { | ||
| error("HAL_ADC_Stop issue"); | ||
| } | ||
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| return adcValue; | ||
| } | ||
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| const PinMap *analogin_pinmap() | ||
| { | ||
| return PinMap_ADC; | ||
| } | ||
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| #endif |
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