Date: March 20, 2011 This library is created from "LPC17xx CMSIS-Compliant Standard Peripheral Firmware Driver Library (GNU, Keil, IAR) (Jan 28, 2011)", available from NXP's website, under "All microcontrollers support documents" [[http://ics.nxp.com/support/documents/microcontrollers/?type=software]] You will need to follow [[/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h]] while using this library Examples provided here [[/users/frank26080115/programs/LPC1700CMSIS_Examples/]] The beautiful thing is that NXP does not place copyright protection on any of the files in here Only a few modifications are made to make it compile with the mbed online compiler, I fixed some warnings as well. This is untested as of March 20, 2011 Forum post about this library: [[/forum/mbed/topic/2030/]]
lpc17xx_adc.c@0:84d7747641aa, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 18:45:15 2011 +0000
- Revision:
- 0:84d7747641aa
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
frank26080115 | 0:84d7747641aa | 1 | /***********************************************************************//** |
frank26080115 | 0:84d7747641aa | 2 | * @file lpc17xx_adc.c |
frank26080115 | 0:84d7747641aa | 3 | * @brief Contains all functions support for ADC firmware library on LPC17xx |
frank26080115 | 0:84d7747641aa | 4 | * @version 3.0 |
frank26080115 | 0:84d7747641aa | 5 | * @date 18. June. 2010 |
frank26080115 | 0:84d7747641aa | 6 | * @author NXP MCU SW Application Team |
frank26080115 | 0:84d7747641aa | 7 | ************************************************************************** |
frank26080115 | 0:84d7747641aa | 8 | * Software that is described herein is for illustrative purposes only |
frank26080115 | 0:84d7747641aa | 9 | * which provides customers with programming information regarding the |
frank26080115 | 0:84d7747641aa | 10 | * products. This software is supplied "AS IS" without any warranties. |
frank26080115 | 0:84d7747641aa | 11 | * NXP Semiconductors assumes no responsibility or liability for the |
frank26080115 | 0:84d7747641aa | 12 | * use of the software, conveys no license or title under any patent, |
frank26080115 | 0:84d7747641aa | 13 | * copyright, or mask work right to the product. NXP Semiconductors |
frank26080115 | 0:84d7747641aa | 14 | * reserves the right to make changes in the software without |
frank26080115 | 0:84d7747641aa | 15 | * notification. NXP Semiconductors also make no representation or |
frank26080115 | 0:84d7747641aa | 16 | * warranty that such application will be suitable for the specified |
frank26080115 | 0:84d7747641aa | 17 | * use without further testing or modification. |
frank26080115 | 0:84d7747641aa | 18 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 19 | |
frank26080115 | 0:84d7747641aa | 20 | /* Peripheral group ----------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 21 | /** @addtogroup ADC |
frank26080115 | 0:84d7747641aa | 22 | * @{ |
frank26080115 | 0:84d7747641aa | 23 | */ |
frank26080115 | 0:84d7747641aa | 24 | |
frank26080115 | 0:84d7747641aa | 25 | /* Includes ------------------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 26 | #include "lpc17xx_adc.h" |
frank26080115 | 0:84d7747641aa | 27 | #include "lpc17xx_clkpwr.h" |
frank26080115 | 0:84d7747641aa | 28 | |
frank26080115 | 0:84d7747641aa | 29 | /* If this source file built with example, the LPC17xx FW library configuration |
frank26080115 | 0:84d7747641aa | 30 | * file in each example directory ("lpc17xx_libcfg.h") must be included, |
frank26080115 | 0:84d7747641aa | 31 | * otherwise the default FW library configuration file must be included instead |
frank26080115 | 0:84d7747641aa | 32 | */ |
frank26080115 | 0:84d7747641aa | 33 | #ifdef __BUILD_WITH_EXAMPLE__ |
frank26080115 | 0:84d7747641aa | 34 | #include "lpc17xx_libcfg.h" |
frank26080115 | 0:84d7747641aa | 35 | #else |
frank26080115 | 0:84d7747641aa | 36 | #include "lpc17xx_libcfg_default.h" |
frank26080115 | 0:84d7747641aa | 37 | #endif /* __BUILD_WITH_EXAMPLE__ */ |
frank26080115 | 0:84d7747641aa | 38 | |
frank26080115 | 0:84d7747641aa | 39 | |
frank26080115 | 0:84d7747641aa | 40 | #ifdef _ADC |
frank26080115 | 0:84d7747641aa | 41 | |
frank26080115 | 0:84d7747641aa | 42 | /* Public Functions ----------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 43 | /** @addtogroup ADC_Public_Functions |
frank26080115 | 0:84d7747641aa | 44 | * @{ |
frank26080115 | 0:84d7747641aa | 45 | */ |
frank26080115 | 0:84d7747641aa | 46 | |
frank26080115 | 0:84d7747641aa | 47 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 48 | * @brief Initial for ADC |
frank26080115 | 0:84d7747641aa | 49 | * + Set bit PCADC |
frank26080115 | 0:84d7747641aa | 50 | * + Set clock for ADC |
frank26080115 | 0:84d7747641aa | 51 | * + Set Clock Frequency |
frank26080115 | 0:84d7747641aa | 52 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 53 | * @param[in] rate ADC conversion rate, should be <=200KHz |
frank26080115 | 0:84d7747641aa | 54 | * @return None |
frank26080115 | 0:84d7747641aa | 55 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 56 | void ADC_Init(LPC_ADC_TypeDef *ADCx, uint32_t rate) |
frank26080115 | 0:84d7747641aa | 57 | { |
frank26080115 | 0:84d7747641aa | 58 | uint32_t temp, tmp; |
frank26080115 | 0:84d7747641aa | 59 | |
frank26080115 | 0:84d7747641aa | 60 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 61 | CHECK_PARAM(PARAM_ADC_RATE(rate)); |
frank26080115 | 0:84d7747641aa | 62 | |
frank26080115 | 0:84d7747641aa | 63 | // Turn on power and clock |
frank26080115 | 0:84d7747641aa | 64 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCAD, ENABLE); |
frank26080115 | 0:84d7747641aa | 65 | |
frank26080115 | 0:84d7747641aa | 66 | ADCx->ADCR = 0; |
frank26080115 | 0:84d7747641aa | 67 | |
frank26080115 | 0:84d7747641aa | 68 | //Enable PDN bit |
frank26080115 | 0:84d7747641aa | 69 | tmp = ADC_CR_PDN; |
frank26080115 | 0:84d7747641aa | 70 | // Set clock frequency |
frank26080115 | 0:84d7747641aa | 71 | temp = CLKPWR_GetPCLK(CLKPWR_PCLKSEL_ADC); |
frank26080115 | 0:84d7747641aa | 72 | /* The APB clock (PCLK_ADC0) is divided by (CLKDIV+1) to produce the clock for |
frank26080115 | 0:84d7747641aa | 73 | * A/D converter, which should be less than or equal to 13MHz. |
frank26080115 | 0:84d7747641aa | 74 | * A fully conversion requires 65 of these clocks. |
frank26080115 | 0:84d7747641aa | 75 | * ADC clock = PCLK_ADC0 / (CLKDIV + 1); |
frank26080115 | 0:84d7747641aa | 76 | * ADC rate = ADC clock / 65; |
frank26080115 | 0:84d7747641aa | 77 | */ |
frank26080115 | 0:84d7747641aa | 78 | temp = (temp /(rate * 65)) - 1; |
frank26080115 | 0:84d7747641aa | 79 | tmp |= ADC_CR_CLKDIV(temp); |
frank26080115 | 0:84d7747641aa | 80 | |
frank26080115 | 0:84d7747641aa | 81 | ADCx->ADCR = tmp; |
frank26080115 | 0:84d7747641aa | 82 | } |
frank26080115 | 0:84d7747641aa | 83 | |
frank26080115 | 0:84d7747641aa | 84 | |
frank26080115 | 0:84d7747641aa | 85 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 86 | * @brief Close ADC |
frank26080115 | 0:84d7747641aa | 87 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 88 | * @return None |
frank26080115 | 0:84d7747641aa | 89 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 90 | void ADC_DeInit(LPC_ADC_TypeDef *ADCx) |
frank26080115 | 0:84d7747641aa | 91 | { |
frank26080115 | 0:84d7747641aa | 92 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 93 | |
frank26080115 | 0:84d7747641aa | 94 | // Clear PDN bit |
frank26080115 | 0:84d7747641aa | 95 | ADCx->ADCR &= ~ADC_CR_PDN; |
frank26080115 | 0:84d7747641aa | 96 | // Turn on power and clock |
frank26080115 | 0:84d7747641aa | 97 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCAD, DISABLE); |
frank26080115 | 0:84d7747641aa | 98 | } |
frank26080115 | 0:84d7747641aa | 99 | |
frank26080115 | 0:84d7747641aa | 100 | |
frank26080115 | 0:84d7747641aa | 101 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 102 | * @brief Get Result conversion from A/D data register |
frank26080115 | 0:84d7747641aa | 103 | * @param[in] channel number which want to read back the result |
frank26080115 | 0:84d7747641aa | 104 | * @return Result of conversion |
frank26080115 | 0:84d7747641aa | 105 | *********************************************************************/ |
frank26080115 | 0:84d7747641aa | 106 | uint32_t ADC_GetData(uint32_t channel) |
frank26080115 | 0:84d7747641aa | 107 | { |
frank26080115 | 0:84d7747641aa | 108 | uint32_t adc_value; |
frank26080115 | 0:84d7747641aa | 109 | |
frank26080115 | 0:84d7747641aa | 110 | CHECK_PARAM(PARAM_ADC_CHANNEL_SELECTION(channel)); |
frank26080115 | 0:84d7747641aa | 111 | |
frank26080115 | 0:84d7747641aa | 112 | adc_value = *(uint32_t *)((&LPC_ADC->ADDR0) + channel); |
frank26080115 | 0:84d7747641aa | 113 | return ADC_GDR_RESULT(adc_value); |
frank26080115 | 0:84d7747641aa | 114 | } |
frank26080115 | 0:84d7747641aa | 115 | |
frank26080115 | 0:84d7747641aa | 116 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 117 | * @brief Set start mode for ADC |
frank26080115 | 0:84d7747641aa | 118 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 119 | * @param[in] start_mode Start mode choose one of modes in |
frank26080115 | 0:84d7747641aa | 120 | * 'ADC_START_OPT' enumeration type definition, should be: |
frank26080115 | 0:84d7747641aa | 121 | * - ADC_START_CONTINUOUS |
frank26080115 | 0:84d7747641aa | 122 | * - ADC_START_NOW |
frank26080115 | 0:84d7747641aa | 123 | * - ADC_START_ON_EINT0 |
frank26080115 | 0:84d7747641aa | 124 | * - ADC_START_ON_CAP01 |
frank26080115 | 0:84d7747641aa | 125 | * - ADC_START_ON_MAT01 |
frank26080115 | 0:84d7747641aa | 126 | * - ADC_START_ON_MAT03 |
frank26080115 | 0:84d7747641aa | 127 | * - ADC_START_ON_MAT10 |
frank26080115 | 0:84d7747641aa | 128 | * - ADC_START_ON_MAT11 |
frank26080115 | 0:84d7747641aa | 129 | * @return None |
frank26080115 | 0:84d7747641aa | 130 | *********************************************************************/ |
frank26080115 | 0:84d7747641aa | 131 | void ADC_StartCmd(LPC_ADC_TypeDef *ADCx, uint8_t start_mode) |
frank26080115 | 0:84d7747641aa | 132 | { |
frank26080115 | 0:84d7747641aa | 133 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 134 | CHECK_PARAM(PARAM_ADC_START_OPT(start_mode)); |
frank26080115 | 0:84d7747641aa | 135 | |
frank26080115 | 0:84d7747641aa | 136 | ADCx->ADCR &= ~ADC_CR_START_MASK; |
frank26080115 | 0:84d7747641aa | 137 | ADCx->ADCR |=ADC_CR_START_MODE_SEL((uint32_t)start_mode); |
frank26080115 | 0:84d7747641aa | 138 | } |
frank26080115 | 0:84d7747641aa | 139 | |
frank26080115 | 0:84d7747641aa | 140 | |
frank26080115 | 0:84d7747641aa | 141 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 142 | * @brief ADC Burst mode setting |
frank26080115 | 0:84d7747641aa | 143 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 144 | * @param[in] NewState |
frank26080115 | 0:84d7747641aa | 145 | * - 1: Set Burst mode |
frank26080115 | 0:84d7747641aa | 146 | * - 0: reset Burst mode |
frank26080115 | 0:84d7747641aa | 147 | * @return None |
frank26080115 | 0:84d7747641aa | 148 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 149 | void ADC_BurstCmd(LPC_ADC_TypeDef *ADCx, FunctionalState NewState) |
frank26080115 | 0:84d7747641aa | 150 | { |
frank26080115 | 0:84d7747641aa | 151 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 152 | |
frank26080115 | 0:84d7747641aa | 153 | ADCx->ADCR &= ~ADC_CR_BURST; |
frank26080115 | 0:84d7747641aa | 154 | if (NewState){ |
frank26080115 | 0:84d7747641aa | 155 | ADCx->ADCR |= ADC_CR_BURST; |
frank26080115 | 0:84d7747641aa | 156 | } |
frank26080115 | 0:84d7747641aa | 157 | } |
frank26080115 | 0:84d7747641aa | 158 | |
frank26080115 | 0:84d7747641aa | 159 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 160 | * @brief Set AD conversion in power mode |
frank26080115 | 0:84d7747641aa | 161 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 162 | * @param[in] NewState |
frank26080115 | 0:84d7747641aa | 163 | * - 1: AD converter is optional |
frank26080115 | 0:84d7747641aa | 164 | * - 0: AD Converter is in power down mode |
frank26080115 | 0:84d7747641aa | 165 | * @return None |
frank26080115 | 0:84d7747641aa | 166 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 167 | void ADC_PowerdownCmd(LPC_ADC_TypeDef *ADCx, FunctionalState NewState) |
frank26080115 | 0:84d7747641aa | 168 | { |
frank26080115 | 0:84d7747641aa | 169 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 170 | |
frank26080115 | 0:84d7747641aa | 171 | ADCx->ADCR &= ~ADC_CR_PDN; |
frank26080115 | 0:84d7747641aa | 172 | if (NewState){ |
frank26080115 | 0:84d7747641aa | 173 | ADCx->ADCR |= ADC_CR_PDN; |
frank26080115 | 0:84d7747641aa | 174 | } |
frank26080115 | 0:84d7747641aa | 175 | } |
frank26080115 | 0:84d7747641aa | 176 | |
frank26080115 | 0:84d7747641aa | 177 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 178 | * @brief Set Edge start configuration |
frank26080115 | 0:84d7747641aa | 179 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 180 | * @param[in] EdgeOption is ADC_START_ON_RISING and ADC_START_ON_FALLING |
frank26080115 | 0:84d7747641aa | 181 | * 0:ADC_START_ON_RISING |
frank26080115 | 0:84d7747641aa | 182 | * 1:ADC_START_ON_FALLING |
frank26080115 | 0:84d7747641aa | 183 | * @return None |
frank26080115 | 0:84d7747641aa | 184 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 185 | void ADC_EdgeStartConfig(LPC_ADC_TypeDef *ADCx, uint8_t EdgeOption) |
frank26080115 | 0:84d7747641aa | 186 | { |
frank26080115 | 0:84d7747641aa | 187 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 188 | CHECK_PARAM(PARAM_ADC_START_ON_EDGE_OPT(EdgeOption)); |
frank26080115 | 0:84d7747641aa | 189 | |
frank26080115 | 0:84d7747641aa | 190 | ADCx->ADCR &= ~ADC_CR_EDGE; |
frank26080115 | 0:84d7747641aa | 191 | if (EdgeOption){ |
frank26080115 | 0:84d7747641aa | 192 | ADCx->ADCR |= ADC_CR_EDGE; |
frank26080115 | 0:84d7747641aa | 193 | } |
frank26080115 | 0:84d7747641aa | 194 | } |
frank26080115 | 0:84d7747641aa | 195 | |
frank26080115 | 0:84d7747641aa | 196 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 197 | * @brief ADC interrupt configuration |
frank26080115 | 0:84d7747641aa | 198 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 199 | * @param[in] IntType: type of interrupt, should be: |
frank26080115 | 0:84d7747641aa | 200 | * - ADC_ADINTEN0: Interrupt channel 0 |
frank26080115 | 0:84d7747641aa | 201 | * - ADC_ADINTEN1: Interrupt channel 1 |
frank26080115 | 0:84d7747641aa | 202 | * ... |
frank26080115 | 0:84d7747641aa | 203 | * - ADC_ADINTEN7: Interrupt channel 7 |
frank26080115 | 0:84d7747641aa | 204 | * - ADC_ADGINTEN: Individual channel/global flag done generate an interrupt |
frank26080115 | 0:84d7747641aa | 205 | * @param[in] NewState: |
frank26080115 | 0:84d7747641aa | 206 | * - SET : enable ADC interrupt |
frank26080115 | 0:84d7747641aa | 207 | * - RESET: disable ADC interrupt |
frank26080115 | 0:84d7747641aa | 208 | * @return None |
frank26080115 | 0:84d7747641aa | 209 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 210 | void ADC_IntConfig (LPC_ADC_TypeDef *ADCx, ADC_TYPE_INT_OPT IntType, FunctionalState NewState) |
frank26080115 | 0:84d7747641aa | 211 | { |
frank26080115 | 0:84d7747641aa | 212 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 213 | CHECK_PARAM(PARAM_ADC_TYPE_INT_OPT(IntType)); |
frank26080115 | 0:84d7747641aa | 214 | |
frank26080115 | 0:84d7747641aa | 215 | ADCx->ADINTEN &= ~ADC_INTEN_CH(IntType); |
frank26080115 | 0:84d7747641aa | 216 | if (NewState){ |
frank26080115 | 0:84d7747641aa | 217 | ADCx->ADINTEN |= ADC_INTEN_CH(IntType); |
frank26080115 | 0:84d7747641aa | 218 | } |
frank26080115 | 0:84d7747641aa | 219 | } |
frank26080115 | 0:84d7747641aa | 220 | |
frank26080115 | 0:84d7747641aa | 221 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 222 | * @brief Enable/Disable ADC channel number |
frank26080115 | 0:84d7747641aa | 223 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 224 | * @param[in] Channel channel number |
frank26080115 | 0:84d7747641aa | 225 | * @param[in] NewState Enable or Disable |
frank26080115 | 0:84d7747641aa | 226 | * |
frank26080115 | 0:84d7747641aa | 227 | * @return None |
frank26080115 | 0:84d7747641aa | 228 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 229 | void ADC_ChannelCmd (LPC_ADC_TypeDef *ADCx, uint8_t Channel, FunctionalState NewState) |
frank26080115 | 0:84d7747641aa | 230 | { |
frank26080115 | 0:84d7747641aa | 231 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 232 | CHECK_PARAM(PARAM_ADC_CHANNEL_SELECTION(Channel)); |
frank26080115 | 0:84d7747641aa | 233 | |
frank26080115 | 0:84d7747641aa | 234 | if (NewState == ENABLE) { |
frank26080115 | 0:84d7747641aa | 235 | ADCx->ADCR |= ADC_CR_CH_SEL(Channel); |
frank26080115 | 0:84d7747641aa | 236 | } else { |
frank26080115 | 0:84d7747641aa | 237 | ADCx->ADCR &= ~ADC_CR_CH_SEL(Channel); |
frank26080115 | 0:84d7747641aa | 238 | } |
frank26080115 | 0:84d7747641aa | 239 | } |
frank26080115 | 0:84d7747641aa | 240 | |
frank26080115 | 0:84d7747641aa | 241 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 242 | * @brief Get ADC result |
frank26080115 | 0:84d7747641aa | 243 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 244 | * @param[in] channel: channel number, should be 0...7 |
frank26080115 | 0:84d7747641aa | 245 | * @return Data conversion |
frank26080115 | 0:84d7747641aa | 246 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 247 | uint16_t ADC_ChannelGetData(LPC_ADC_TypeDef *ADCx, uint8_t channel) |
frank26080115 | 0:84d7747641aa | 248 | { |
frank26080115 | 0:84d7747641aa | 249 | uint32_t adc_value; |
frank26080115 | 0:84d7747641aa | 250 | |
frank26080115 | 0:84d7747641aa | 251 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 252 | CHECK_PARAM(PARAM_ADC_CHANNEL_SELECTION(channel)); |
frank26080115 | 0:84d7747641aa | 253 | |
frank26080115 | 0:84d7747641aa | 254 | adc_value = *(uint32_t *) ((&ADCx->ADDR0) + channel); |
frank26080115 | 0:84d7747641aa | 255 | return ADC_DR_RESULT(adc_value); |
frank26080115 | 0:84d7747641aa | 256 | } |
frank26080115 | 0:84d7747641aa | 257 | |
frank26080115 | 0:84d7747641aa | 258 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 259 | * @brief Get ADC Chanel status from ADC data register |
frank26080115 | 0:84d7747641aa | 260 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 261 | * @param[in] channel: channel number, should be 0..7 |
frank26080115 | 0:84d7747641aa | 262 | * @param[in] StatusType |
frank26080115 | 0:84d7747641aa | 263 | * 0:Burst status |
frank26080115 | 0:84d7747641aa | 264 | * 1:Done status |
frank26080115 | 0:84d7747641aa | 265 | * @return SET / RESET |
frank26080115 | 0:84d7747641aa | 266 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 267 | FlagStatus ADC_ChannelGetStatus(LPC_ADC_TypeDef *ADCx, uint8_t channel, uint32_t StatusType) |
frank26080115 | 0:84d7747641aa | 268 | { |
frank26080115 | 0:84d7747641aa | 269 | uint32_t temp; |
frank26080115 | 0:84d7747641aa | 270 | |
frank26080115 | 0:84d7747641aa | 271 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 272 | CHECK_PARAM(PARAM_ADC_CHANNEL_SELECTION(channel)); |
frank26080115 | 0:84d7747641aa | 273 | CHECK_PARAM(PARAM_ADC_DATA_STATUS(StatusType)); |
frank26080115 | 0:84d7747641aa | 274 | |
frank26080115 | 0:84d7747641aa | 275 | temp = *(uint32_t *) ((&ADCx->ADDR0) + channel); |
frank26080115 | 0:84d7747641aa | 276 | if (StatusType) { |
frank26080115 | 0:84d7747641aa | 277 | temp &= ADC_DR_DONE_FLAG; |
frank26080115 | 0:84d7747641aa | 278 | }else{ |
frank26080115 | 0:84d7747641aa | 279 | temp &= ADC_DR_OVERRUN_FLAG; |
frank26080115 | 0:84d7747641aa | 280 | } |
frank26080115 | 0:84d7747641aa | 281 | if (temp) { |
frank26080115 | 0:84d7747641aa | 282 | return SET; |
frank26080115 | 0:84d7747641aa | 283 | } else { |
frank26080115 | 0:84d7747641aa | 284 | return RESET; |
frank26080115 | 0:84d7747641aa | 285 | } |
frank26080115 | 0:84d7747641aa | 286 | |
frank26080115 | 0:84d7747641aa | 287 | } |
frank26080115 | 0:84d7747641aa | 288 | |
frank26080115 | 0:84d7747641aa | 289 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 290 | * @brief Get ADC Data from AD Global register |
frank26080115 | 0:84d7747641aa | 291 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 292 | * @return Result of conversion |
frank26080115 | 0:84d7747641aa | 293 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 294 | uint32_t ADC_GlobalGetData(LPC_ADC_TypeDef *ADCx) |
frank26080115 | 0:84d7747641aa | 295 | { |
frank26080115 | 0:84d7747641aa | 296 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 297 | |
frank26080115 | 0:84d7747641aa | 298 | return ((uint32_t)(ADCx->ADGDR)); |
frank26080115 | 0:84d7747641aa | 299 | } |
frank26080115 | 0:84d7747641aa | 300 | |
frank26080115 | 0:84d7747641aa | 301 | /*********************************************************************//** |
frank26080115 | 0:84d7747641aa | 302 | * @brief Get ADC Chanel status from AD global data register |
frank26080115 | 0:84d7747641aa | 303 | * @param[in] ADCx pointer to LPC_ADC_TypeDef, should be: LPC_ADC |
frank26080115 | 0:84d7747641aa | 304 | * @param[in] StatusType |
frank26080115 | 0:84d7747641aa | 305 | * 0:Burst status |
frank26080115 | 0:84d7747641aa | 306 | * 1:Done status |
frank26080115 | 0:84d7747641aa | 307 | * @return SET / RESET |
frank26080115 | 0:84d7747641aa | 308 | **********************************************************************/ |
frank26080115 | 0:84d7747641aa | 309 | FlagStatus ADC_GlobalGetStatus(LPC_ADC_TypeDef *ADCx, uint32_t StatusType) |
frank26080115 | 0:84d7747641aa | 310 | { |
frank26080115 | 0:84d7747641aa | 311 | uint32_t temp; |
frank26080115 | 0:84d7747641aa | 312 | |
frank26080115 | 0:84d7747641aa | 313 | CHECK_PARAM(PARAM_ADCx(ADCx)); |
frank26080115 | 0:84d7747641aa | 314 | CHECK_PARAM(PARAM_ADC_DATA_STATUS(StatusType)); |
frank26080115 | 0:84d7747641aa | 315 | |
frank26080115 | 0:84d7747641aa | 316 | temp = ADCx->ADGDR; |
frank26080115 | 0:84d7747641aa | 317 | if (StatusType){ |
frank26080115 | 0:84d7747641aa | 318 | temp &= ADC_DR_DONE_FLAG; |
frank26080115 | 0:84d7747641aa | 319 | }else{ |
frank26080115 | 0:84d7747641aa | 320 | temp &= ADC_DR_OVERRUN_FLAG; |
frank26080115 | 0:84d7747641aa | 321 | } |
frank26080115 | 0:84d7747641aa | 322 | if (temp){ |
frank26080115 | 0:84d7747641aa | 323 | return SET; |
frank26080115 | 0:84d7747641aa | 324 | }else{ |
frank26080115 | 0:84d7747641aa | 325 | return RESET; |
frank26080115 | 0:84d7747641aa | 326 | } |
frank26080115 | 0:84d7747641aa | 327 | } |
frank26080115 | 0:84d7747641aa | 328 | |
frank26080115 | 0:84d7747641aa | 329 | /** |
frank26080115 | 0:84d7747641aa | 330 | * @} |
frank26080115 | 0:84d7747641aa | 331 | */ |
frank26080115 | 0:84d7747641aa | 332 | |
frank26080115 | 0:84d7747641aa | 333 | #endif /* _ADC */ |
frank26080115 | 0:84d7747641aa | 334 | |
frank26080115 | 0:84d7747641aa | 335 | /** |
frank26080115 | 0:84d7747641aa | 336 | * @} |
frank26080115 | 0:84d7747641aa | 337 | */ |
frank26080115 | 0:84d7747641aa | 338 | |
frank26080115 | 0:84d7747641aa | 339 | /* --------------------------------- End Of File ------------------------------ */ |
frank26080115 | 0:84d7747641aa | 340 |