mbed library sources
Dependents: Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more
Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
If you are looking for a stable and tested release, please import one of the official mbed library releases:
Import librarymbed
The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_K64F/analogin_api.c@151:7a600087bf72, 2014-04-05 (annotated)
- Committer:
- mbed_official
- Date:
- Sat Apr 05 17:45:06 2014 +0100
- Revision:
- 151:7a600087bf72
- Parent:
- 149:1fb5f62b92bd
- Child:
- 227:7bd0639b8911
Synchronized with git revision 6a7b119b46ef99976a5e26f3ff0f8e8af916a24a
Full URL: https://github.com/mbedmicro/mbed/commit/6a7b119b46ef99976a5e26f3ff0f8e8af916a24a/
K64F - ADC mbed HAL - channels definition correction
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 146:f64d43ff0c18 | 1 | /* mbed Microcontroller Library |
mbed_official | 146:f64d43ff0c18 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 146:f64d43ff0c18 | 3 | * |
mbed_official | 146:f64d43ff0c18 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 146:f64d43ff0c18 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 146:f64d43ff0c18 | 6 | * You may obtain a copy of the License at |
mbed_official | 146:f64d43ff0c18 | 7 | * |
mbed_official | 146:f64d43ff0c18 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 146:f64d43ff0c18 | 9 | * |
mbed_official | 146:f64d43ff0c18 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 146:f64d43ff0c18 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 146:f64d43ff0c18 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 146:f64d43ff0c18 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 146:f64d43ff0c18 | 14 | * limitations under the License. |
mbed_official | 146:f64d43ff0c18 | 15 | */ |
mbed_official | 146:f64d43ff0c18 | 16 | #include "analogin_api.h" |
mbed_official | 146:f64d43ff0c18 | 17 | |
mbed_official | 146:f64d43ff0c18 | 18 | #include "cmsis.h" |
mbed_official | 146:f64d43ff0c18 | 19 | #include "pinmap.h" |
mbed_official | 146:f64d43ff0c18 | 20 | #include "error.h" |
mbed_official | 146:f64d43ff0c18 | 21 | #include "PeripheralNames.h" |
mbed_official | 146:f64d43ff0c18 | 22 | #include "fsl_adc_hal.h" |
mbed_official | 146:f64d43ff0c18 | 23 | #include "fsl_clock_manager.h" |
mbed_official | 146:f64d43ff0c18 | 24 | |
mbed_official | 146:f64d43ff0c18 | 25 | #define MAX_FADC 6000000 |
mbed_official | 146:f64d43ff0c18 | 26 | |
mbed_official | 146:f64d43ff0c18 | 27 | static const PinMap PinMap_ADC[] = { |
mbed_official | 146:f64d43ff0c18 | 28 | {PTC2, ADC0_SE4b, 0}, |
mbed_official | 146:f64d43ff0c18 | 29 | {PTC8, ADC1_SE4b, 0}, |
mbed_official | 151:7a600087bf72 | 30 | {PTC9, ADC1_SE5b, 0}, |
mbed_official | 146:f64d43ff0c18 | 31 | {PTD1, ADC0_SE5b, 0}, |
mbed_official | 151:7a600087bf72 | 32 | {PTC10, ADC1_SE6b, 0}, |
mbed_official | 146:f64d43ff0c18 | 33 | {PTD5, ADC0_SE6b, 0}, |
mbed_official | 151:7a600087bf72 | 34 | {PTC11, ADC1_SE7b, 0}, |
mbed_official | 151:7a600087bf72 | 35 | {PTD6, ADC0_SE7b, 0}, |
mbed_official | 146:f64d43ff0c18 | 36 | {PTB0 , ADC0_SE8 , 0}, |
mbed_official | 146:f64d43ff0c18 | 37 | {PTB1 , ADC0_SE9 , 0}, |
mbed_official | 146:f64d43ff0c18 | 38 | {PTB2 , ADC0_SE12, 0}, |
mbed_official | 146:f64d43ff0c18 | 39 | {PTB3 , ADC0_SE13, 0}, |
mbed_official | 146:f64d43ff0c18 | 40 | {PTC0 , ADC0_SE14, 0}, |
mbed_official | 146:f64d43ff0c18 | 41 | {PTB10, ADC1_SE14, 0}, |
mbed_official | 146:f64d43ff0c18 | 42 | {PTB11, ADC1_SE15, 0}, |
mbed_official | 146:f64d43ff0c18 | 43 | {PTC1 , ADC0_SE15, 0}, |
mbed_official | 146:f64d43ff0c18 | 44 | {PTA17, ADC1_SE17, 0}, |
mbed_official | 151:7a600087bf72 | 45 | //{PTE24, ADC0_SE17, 0}, //I2C pull up |
mbed_official | 151:7a600087bf72 | 46 | //{PTE25, ADC0_SE18, 0}, //I2C pull up |
mbed_official | 146:f64d43ff0c18 | 47 | {NC , NC , 0} |
mbed_official | 146:f64d43ff0c18 | 48 | }; |
mbed_official | 146:f64d43ff0c18 | 49 | |
mbed_official | 146:f64d43ff0c18 | 50 | void analogin_init(analogin_t *obj, PinName pin) { |
mbed_official | 146:f64d43ff0c18 | 51 | obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); |
mbed_official | 146:f64d43ff0c18 | 52 | if (obj->adc == (ADCName)NC) { |
mbed_official | 146:f64d43ff0c18 | 53 | error("ADC pin mapping failed"); |
mbed_official | 146:f64d43ff0c18 | 54 | } |
mbed_official | 146:f64d43ff0c18 | 55 | uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT; |
mbed_official | 146:f64d43ff0c18 | 56 | |
mbed_official | 146:f64d43ff0c18 | 57 | clock_manager_set_gate(kClockModuleADC, instance, true); |
mbed_official | 146:f64d43ff0c18 | 58 | |
mbed_official | 146:f64d43ff0c18 | 59 | uint32_t bus_clock; |
mbed_official | 146:f64d43ff0c18 | 60 | clock_manager_get_frequency(kBusClock, &bus_clock); |
mbed_official | 146:f64d43ff0c18 | 61 | uint32_t clkdiv; |
mbed_official | 146:f64d43ff0c18 | 62 | for (clkdiv = 0; clkdiv < 4; clkdiv++) { |
mbed_official | 146:f64d43ff0c18 | 63 | if ((bus_clock >> clkdiv) <= MAX_FADC) |
mbed_official | 146:f64d43ff0c18 | 64 | break; |
mbed_official | 146:f64d43ff0c18 | 65 | } |
mbed_official | 151:7a600087bf72 | 66 | if (clkdiv == 4) { |
mbed_official | 151:7a600087bf72 | 67 | clkdiv = 0x7; //Set max div |
mbed_official | 146:f64d43ff0c18 | 68 | } |
mbed_official | 151:7a600087bf72 | 69 | /* adc is enabled/triggered when reading. */ |
mbed_official | 146:f64d43ff0c18 | 70 | adc_hal_set_clock_source_mode(instance, (adc_clock_source_mode_t)(clkdiv >> 2)); |
mbed_official | 146:f64d43ff0c18 | 71 | adc_hal_set_clock_divider_mode(instance, (adc_clock_divider_mode_t)(clkdiv & 0x3)); |
mbed_official | 146:f64d43ff0c18 | 72 | adc_hal_set_reference_voltage_mode(instance, kAdcVoltageVref); |
mbed_official | 146:f64d43ff0c18 | 73 | adc_hal_set_resolution_mode(instance, kAdcSingleDiff16); |
mbed_official | 146:f64d43ff0c18 | 74 | adc_hal_configure_continuous_conversion(instance, false); |
mbed_official | 151:7a600087bf72 | 75 | adc_hal_configure_hw_trigger(instance, false); /* sw trigger */ |
mbed_official | 151:7a600087bf72 | 76 | adc_hal_configure_hw_average(instance, true); |
mbed_official | 151:7a600087bf72 | 77 | adc_hal_set_hw_average_mode(instance, kAdcHwAverageCount4); |
mbed_official | 151:7a600087bf72 | 78 | adc_hal_set_group_mux(instance, kAdcChannelMuxB); /* only B channels are avail */ |
mbed_official | 146:f64d43ff0c18 | 79 | |
mbed_official | 151:7a600087bf72 | 80 | pinmap_pinout(pin, PinMap_ADC); |
mbed_official | 146:f64d43ff0c18 | 81 | } |
mbed_official | 146:f64d43ff0c18 | 82 | |
mbed_official | 146:f64d43ff0c18 | 83 | uint16_t analogin_read_u16(analogin_t *obj) { |
mbed_official | 146:f64d43ff0c18 | 84 | uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT; |
mbed_official | 151:7a600087bf72 | 85 | /* sw trigger (SC1A) */ |
mbed_official | 151:7a600087bf72 | 86 | adc_hal_enable(instance, 0, (adc_channel_mode_t)(obj->adc & 0xF), false); |
mbed_official | 151:7a600087bf72 | 87 | while (!adc_hal_is_conversion_completed(instance, 0)); |
mbed_official | 151:7a600087bf72 | 88 | return adc_hal_get_conversion_value(instance, 0); |
mbed_official | 146:f64d43ff0c18 | 89 | } |
mbed_official | 146:f64d43ff0c18 | 90 | |
mbed_official | 146:f64d43ff0c18 | 91 | float analogin_read(analogin_t *obj) { |
mbed_official | 146:f64d43ff0c18 | 92 | uint16_t value = analogin_read_u16(obj); |
mbed_official | 146:f64d43ff0c18 | 93 | return (float)value * (1.0f / (float)0xFFFF); |
mbed_official | 146:f64d43ff0c18 | 94 | } |
mbed_official | 146:f64d43ff0c18 | 95 |