xeye_ atsu
/
I2S_AIC23B_32khz_wavtest
I2S_Example/i2s_irq_test.c@0:63ed631d8c3a, 2011-01-21 (annotated)
- Committer:
- lynxeyed_atsu
- Date:
- Fri Jan 21 08:39:48 2011 +0000
- Revision:
- 0:63ed631d8c3a
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
lynxeyed_atsu | 0:63ed631d8c3a | 1 | /***********************************************************************//** |
lynxeyed_atsu | 0:63ed631d8c3a | 2 | * @file i2s_irq_test.c |
lynxeyed_atsu | 0:63ed631d8c3a | 3 | * @purpose This example describes how to use I2S transfer in interrupt |
lynxeyed_atsu | 0:63ed631d8c3a | 4 | * mode |
lynxeyed_atsu | 0:63ed631d8c3a | 5 | * @version 2.0 |
lynxeyed_atsu | 0:63ed631d8c3a | 6 | * @date 21. May. 2010 |
lynxeyed_atsu | 0:63ed631d8c3a | 7 | * @author NXP MCU SW Application Team |
lynxeyed_atsu | 0:63ed631d8c3a | 8 | *--------------------------------------------------------------------- |
lynxeyed_atsu | 0:63ed631d8c3a | 9 | * Software that is described herein is for illustrative purposes only |
lynxeyed_atsu | 0:63ed631d8c3a | 10 | * which provides customers with programming information regarding the |
lynxeyed_atsu | 0:63ed631d8c3a | 11 | * products. This software is supplied "AS IS" without any warranties. |
lynxeyed_atsu | 0:63ed631d8c3a | 12 | * NXP Semiconductors assumes no responsibility or liability for the |
lynxeyed_atsu | 0:63ed631d8c3a | 13 | * use of the software, conveys no license or title under any patent, |
lynxeyed_atsu | 0:63ed631d8c3a | 14 | * copyright, or mask work right to the product. NXP Semiconductors |
lynxeyed_atsu | 0:63ed631d8c3a | 15 | * reserves the right to make changes in the software without |
lynxeyed_atsu | 0:63ed631d8c3a | 16 | * notification. NXP Semiconductors also make no representation or |
lynxeyed_atsu | 0:63ed631d8c3a | 17 | * warranty that such application will be suitable for the specified |
lynxeyed_atsu | 0:63ed631d8c3a | 18 | * use without further testing or modification. |
lynxeyed_atsu | 0:63ed631d8c3a | 19 | **********************************************************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 20 | #include "lpc17xx_i2s.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 21 | #include "lpc17xx_libcfg.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 22 | #include "lpc17xx_pinsel.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 23 | #include "debug_frmwrk.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 24 | #include "lpc17xx_clkpwr.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 25 | #include "i2s_irq_test.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 26 | #include "mbed.h" |
lynxeyed_atsu | 0:63ed631d8c3a | 27 | |
lynxeyed_atsu | 0:63ed631d8c3a | 28 | |
lynxeyed_atsu | 0:63ed631d8c3a | 29 | |
lynxeyed_atsu | 0:63ed631d8c3a | 30 | /* Example group ----------------------------------------------------------- */ |
lynxeyed_atsu | 0:63ed631d8c3a | 31 | /** @defgroup I2S_IRQ I2S_IRQ |
lynxeyed_atsu | 0:63ed631d8c3a | 32 | * @ingroup I2S_Examples |
lynxeyed_atsu | 0:63ed631d8c3a | 33 | * @{ |
lynxeyed_atsu | 0:63ed631d8c3a | 34 | */ |
lynxeyed_atsu | 0:63ed631d8c3a | 35 | |
lynxeyed_atsu | 0:63ed631d8c3a | 36 | |
lynxeyed_atsu | 0:63ed631d8c3a | 37 | /************************** PRIVATE VARIABLES ***********************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 38 | uint8_t menu[]= |
lynxeyed_atsu | 0:63ed631d8c3a | 39 | "********************************************************************************\n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 40 | "Hello NXP Semiconductors \n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 41 | " I2S interrupt mode demo \n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 42 | "\t - MCU: mbed-005.1 LPC1768 \n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 43 | "\t - Core: ARM CORTEX-M3 \n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 44 | "\t - Communicate via: UART0 - 9600 bps \n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 45 | " Use two I2S channels in the same board to transfer data in interrupt mode\n\r" |
lynxeyed_atsu | 0:63ed631d8c3a | 46 | "********************************************************************************\n\r"; |
lynxeyed_atsu | 0:63ed631d8c3a | 47 | |
lynxeyed_atsu | 0:63ed631d8c3a | 48 | volatile uint8_t I2STXDone = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 49 | volatile uint8_t I2SRXDone = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 50 | |
lynxeyed_atsu | 0:63ed631d8c3a | 51 | volatile uint32_t *I2STXBuffer = (uint32_t*)(I2S_BUFFER_SRC); |
lynxeyed_atsu | 0:63ed631d8c3a | 52 | volatile uint32_t *I2SRXBuffer = (uint32_t *)(I2S_BUFFER_DST); |
lynxeyed_atsu | 0:63ed631d8c3a | 53 | |
lynxeyed_atsu | 0:63ed631d8c3a | 54 | volatile uint32_t I2SReadLength = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 55 | volatile uint32_t I2SWriteLength = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 56 | |
lynxeyed_atsu | 0:63ed631d8c3a | 57 | uint8_t tx_depth_irq = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 58 | uint8_t rx_depth_irq = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 59 | uint8_t dummy=0; |
lynxeyed_atsu | 0:63ed631d8c3a | 60 | |
lynxeyed_atsu | 0:63ed631d8c3a | 61 | |
lynxeyed_atsu | 0:63ed631d8c3a | 62 | /************************** PRIVATE FUNCTIONS *************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 63 | void I2S_IRQHandler(void); |
lynxeyed_atsu | 0:63ed631d8c3a | 64 | |
lynxeyed_atsu | 0:63ed631d8c3a | 65 | void Buffer_Init(void); |
lynxeyed_atsu | 0:63ed631d8c3a | 66 | Bool Buffer_Verify(void); |
lynxeyed_atsu | 0:63ed631d8c3a | 67 | |
lynxeyed_atsu | 0:63ed631d8c3a | 68 | |
lynxeyed_atsu | 0:63ed631d8c3a | 69 | /*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 70 | /*********************************************************************//** |
lynxeyed_atsu | 0:63ed631d8c3a | 71 | * @brief I2S IRQ Handler |
lynxeyed_atsu | 0:63ed631d8c3a | 72 | * @param[in] None |
lynxeyed_atsu | 0:63ed631d8c3a | 73 | * @return None |
lynxeyed_atsu | 0:63ed631d8c3a | 74 | **********************************************************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 75 | /*void I2S_IRQHandler() |
lynxeyed_atsu | 0:63ed631d8c3a | 76 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 77 | uint32_t RXLevel = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 78 | |
lynxeyed_atsu | 0:63ed631d8c3a | 79 | //Check RX interrupt |
lynxeyed_atsu | 0:63ed631d8c3a | 80 | if(I2S_GetIRQStatus(LPC_I2S, I2S_RX_MODE)) |
lynxeyed_atsu | 0:63ed631d8c3a | 81 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 82 | RXLevel = I2S_GetLevel(LPC_I2S, I2S_RX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 83 | if ( (RXLevel != RXFIFO_EMPTY) && !I2SRXDone ) |
lynxeyed_atsu | 0:63ed631d8c3a | 84 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 85 | while ( RXLevel > 0 ) |
lynxeyed_atsu | 0:63ed631d8c3a | 86 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 87 | if ( I2SReadLength == BUFFER_SIZE ) |
lynxeyed_atsu | 0:63ed631d8c3a | 88 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 89 | //Stop RX |
lynxeyed_atsu | 0:63ed631d8c3a | 90 | I2S_Stop(LPC_I2S, I2S_RX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 91 | // Disable RX |
lynxeyed_atsu | 0:63ed631d8c3a | 92 | I2S_IRQCmd(LPC_I2S, I2S_RX_MODE, DISABLE); |
lynxeyed_atsu | 0:63ed631d8c3a | 93 | I2SRXDone = 1; |
lynxeyed_atsu | 0:63ed631d8c3a | 94 | break; |
lynxeyed_atsu | 0:63ed631d8c3a | 95 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 96 | else |
lynxeyed_atsu | 0:63ed631d8c3a | 97 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 98 | I2SRXBuffer[I2SReadLength++] = LPC_I2S->I2SRXFIFO; |
lynxeyed_atsu | 0:63ed631d8c3a | 99 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 100 | RXLevel--; |
lynxeyed_atsu | 0:63ed631d8c3a | 101 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 102 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 103 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 104 | return; |
lynxeyed_atsu | 0:63ed631d8c3a | 105 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 106 | */ |
lynxeyed_atsu | 0:63ed631d8c3a | 107 | /*-------------------------PRIVATE FUNCTIONS------------------------------*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 108 | /*********************************************************************//** |
lynxeyed_atsu | 0:63ed631d8c3a | 109 | * @brief Initialize buffer |
lynxeyed_atsu | 0:63ed631d8c3a | 110 | * @param[in] None |
lynxeyed_atsu | 0:63ed631d8c3a | 111 | * @return None |
lynxeyed_atsu | 0:63ed631d8c3a | 112 | **********************************************************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 113 | void Buffer_Init(void) { |
lynxeyed_atsu | 0:63ed631d8c3a | 114 | uint32_t i; |
lynxeyed_atsu | 0:63ed631d8c3a | 115 | for ( i = 0; i < BUFFER_SIZE; i++ ) |
lynxeyed_atsu | 0:63ed631d8c3a | 116 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 117 | I2STXBuffer[i] = i |(i << 16); |
lynxeyed_atsu | 0:63ed631d8c3a | 118 | I2SRXBuffer[i] = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 119 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 120 | |
lynxeyed_atsu | 0:63ed631d8c3a | 121 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 122 | |
lynxeyed_atsu | 0:63ed631d8c3a | 123 | /*-------------------------MAIN FUNCTION------------------------------*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 124 | /*********************************************************************//** |
lynxeyed_atsu | 0:63ed631d8c3a | 125 | * @brief mbed_i2s_init: Main program body |
lynxeyed_atsu | 0:63ed631d8c3a | 126 | * @param[in] None |
lynxeyed_atsu | 0:63ed631d8c3a | 127 | * @return int |
lynxeyed_atsu | 0:63ed631d8c3a | 128 | **********************************************************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 129 | // for mbed |
lynxeyed_atsu | 0:63ed631d8c3a | 130 | void mbed_i2s_init(void){ |
lynxeyed_atsu | 0:63ed631d8c3a | 131 | |
lynxeyed_atsu | 0:63ed631d8c3a | 132 | I2S_MODEConf_Type I2S_ClkConfig; |
lynxeyed_atsu | 0:63ed631d8c3a | 133 | I2S_CFG_Type I2S_ConfigStruct; |
lynxeyed_atsu | 0:63ed631d8c3a | 134 | PINSEL_CFG_Type PinCfg; |
lynxeyed_atsu | 0:63ed631d8c3a | 135 | // uint32_t i; |
lynxeyed_atsu | 0:63ed631d8c3a | 136 | /* Initialize debug via UART0 |
lynxeyed_atsu | 0:63ed631d8c3a | 137 | * ? 115200bps |
lynxeyed_atsu | 0:63ed631d8c3a | 138 | * ? 8 data bit |
lynxeyed_atsu | 0:63ed631d8c3a | 139 | * ? No parity |
lynxeyed_atsu | 0:63ed631d8c3a | 140 | * ? 1 stop bit |
lynxeyed_atsu | 0:63ed631d8c3a | 141 | * ? No flow control |
lynxeyed_atsu | 0:63ed631d8c3a | 142 | */ |
lynxeyed_atsu | 0:63ed631d8c3a | 143 | debug_frmwrk_init(); |
lynxeyed_atsu | 0:63ed631d8c3a | 144 | |
lynxeyed_atsu | 0:63ed631d8c3a | 145 | //print menu screen |
lynxeyed_atsu | 0:63ed631d8c3a | 146 | //print_menu(); |
lynxeyed_atsu | 0:63ed631d8c3a | 147 | |
lynxeyed_atsu | 0:63ed631d8c3a | 148 | /* Initialize I2S peripheral ------------------------------------*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 149 | /* Pin configuration: |
lynxeyed_atsu | 0:63ed631d8c3a | 150 | * Assign: - P0.4 as I2SRX_CLK |
lynxeyed_atsu | 0:63ed631d8c3a | 151 | * - P0.5 as I2SRX_WS |
lynxeyed_atsu | 0:63ed631d8c3a | 152 | * - P0.6 as I2SRX_SDA |
lynxeyed_atsu | 0:63ed631d8c3a | 153 | * - P0.7 as I2STX_CLK |
lynxeyed_atsu | 0:63ed631d8c3a | 154 | * - P0.8 as I2STX_WS |
lynxeyed_atsu | 0:63ed631d8c3a | 155 | * - P0.9 as I2STX_SDA |
lynxeyed_atsu | 0:63ed631d8c3a | 156 | */ |
lynxeyed_atsu | 0:63ed631d8c3a | 157 | |
lynxeyed_atsu | 0:63ed631d8c3a | 158 | |
lynxeyed_atsu | 0:63ed631d8c3a | 159 | |
lynxeyed_atsu | 0:63ed631d8c3a | 160 | PinCfg.Funcnum = 1; |
lynxeyed_atsu | 0:63ed631d8c3a | 161 | PinCfg.OpenDrain = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 162 | PinCfg.Pinmode = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 163 | PinCfg.Pinnum = 4; |
lynxeyed_atsu | 0:63ed631d8c3a | 164 | PinCfg.Portnum = 0; |
lynxeyed_atsu | 0:63ed631d8c3a | 165 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 166 | PinCfg.Pinnum = 5; |
lynxeyed_atsu | 0:63ed631d8c3a | 167 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 168 | PinCfg.Pinnum = 6; |
lynxeyed_atsu | 0:63ed631d8c3a | 169 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 170 | PinCfg.Pinnum = 7; |
lynxeyed_atsu | 0:63ed631d8c3a | 171 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 172 | PinCfg.Pinnum = 8; |
lynxeyed_atsu | 0:63ed631d8c3a | 173 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 174 | PinCfg.Pinnum = 9; |
lynxeyed_atsu | 0:63ed631d8c3a | 175 | PINSEL_ConfigPin(&PinCfg); |
lynxeyed_atsu | 0:63ed631d8c3a | 176 | |
lynxeyed_atsu | 0:63ed631d8c3a | 177 | Buffer_Init(); |
lynxeyed_atsu | 0:63ed631d8c3a | 178 | I2S_Init(LPC_I2S); |
lynxeyed_atsu | 0:63ed631d8c3a | 179 | |
lynxeyed_atsu | 0:63ed631d8c3a | 180 | /* setup: |
lynxeyed_atsu | 0:63ed631d8c3a | 181 | * - wordwidth: 16 bits |
lynxeyed_atsu | 0:63ed631d8c3a | 182 | * - stereo mode |
lynxeyed_atsu | 0:63ed631d8c3a | 183 | * - master mode for I2S_TX and slave for I2S_RX |
lynxeyed_atsu | 0:63ed631d8c3a | 184 | * - ws_halfperiod is 31 |
lynxeyed_atsu | 0:63ed631d8c3a | 185 | * - not use mute mode |
lynxeyed_atsu | 0:63ed631d8c3a | 186 | * - use reset and stop mode |
lynxeyed_atsu | 0:63ed631d8c3a | 187 | * - select the fractional rate divider clock output as the source, |
lynxeyed_atsu | 0:63ed631d8c3a | 188 | * - disable 4-pin mode |
lynxeyed_atsu | 0:63ed631d8c3a | 189 | * - MCLK ouput is disable |
lynxeyed_atsu | 0:63ed631d8c3a | 190 | * - Frequency = 44.1 kHz |
lynxeyed_atsu | 0:63ed631d8c3a | 191 | * Because we use mode I2STXMODE[3:0]= 0000, I2SDAO[5]=0 and |
lynxeyed_atsu | 0:63ed631d8c3a | 192 | * I2SRX[3:0]=0000, I2SDAI[5] = 1. So we have I2SRX_CLK = I2STX_CLK |
lynxeyed_atsu | 0:63ed631d8c3a | 193 | * --> I2SRXBITRATE = 1 (not divide TXCLK to produce RXCLK) |
lynxeyed_atsu | 0:63ed631d8c3a | 194 | */ |
lynxeyed_atsu | 0:63ed631d8c3a | 195 | |
lynxeyed_atsu | 0:63ed631d8c3a | 196 | /* Audio Config*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 197 | I2S_ConfigStruct.wordwidth = I2S_WORDWIDTH_16; |
lynxeyed_atsu | 0:63ed631d8c3a | 198 | I2S_ConfigStruct.mono = I2S_STEREO; |
lynxeyed_atsu | 0:63ed631d8c3a | 199 | I2S_ConfigStruct.stop = I2S_STOP_ENABLE; |
lynxeyed_atsu | 0:63ed631d8c3a | 200 | I2S_ConfigStruct.reset = I2S_RESET_ENABLE; |
lynxeyed_atsu | 0:63ed631d8c3a | 201 | I2S_ConfigStruct.ws_sel = I2S_SLAVE_MODE; |
lynxeyed_atsu | 0:63ed631d8c3a | 202 | I2S_ConfigStruct.mute = I2S_MUTE_DISABLE; |
lynxeyed_atsu | 0:63ed631d8c3a | 203 | I2S_Config(LPC_I2S,I2S_TX_MODE,&I2S_ConfigStruct); |
lynxeyed_atsu | 0:63ed631d8c3a | 204 | |
lynxeyed_atsu | 0:63ed631d8c3a | 205 | I2S_ConfigStruct.ws_sel = I2S_SLAVE_MODE; |
lynxeyed_atsu | 0:63ed631d8c3a | 206 | I2S_Config(LPC_I2S,I2S_RX_MODE,&I2S_ConfigStruct); |
lynxeyed_atsu | 0:63ed631d8c3a | 207 | |
lynxeyed_atsu | 0:63ed631d8c3a | 208 | /* Clock Mode Config*/ |
lynxeyed_atsu | 0:63ed631d8c3a | 209 | CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_I2S,CLKPWR_PCLKSEL_CCLK_DIV_4); |
lynxeyed_atsu | 0:63ed631d8c3a | 210 | |
lynxeyed_atsu | 0:63ed631d8c3a | 211 | I2S_ClkConfig.clksel = I2S_CLKSEL_FRDCLK; |
lynxeyed_atsu | 0:63ed631d8c3a | 212 | I2S_ClkConfig.fpin = I2S_4PIN_DISABLE; |
lynxeyed_atsu | 0:63ed631d8c3a | 213 | I2S_ClkConfig.mcena = I2S_MCLK_DISABLE; |
lynxeyed_atsu | 0:63ed631d8c3a | 214 | I2S_ModeConfig(LPC_I2S,&I2S_ClkConfig,I2S_TX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 215 | I2S_ModeConfig(LPC_I2S,&I2S_ClkConfig,I2S_RX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 216 | |
lynxeyed_atsu | 0:63ed631d8c3a | 217 | |
lynxeyed_atsu | 0:63ed631d8c3a | 218 | //I2S_FreqConfig(LPC_I2S, (uint16_t)44100, I2S_TX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 219 | I2S_SetBitRate(LPC_I2S, 0, I2S_TX_MODE); //FOR SLAVE MODE TX |
lynxeyed_atsu | 0:63ed631d8c3a | 220 | I2S_SetBitRate(LPC_I2S, 0, I2S_RX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 221 | |
lynxeyed_atsu | 0:63ed631d8c3a | 222 | I2S_Stop(LPC_I2S, I2S_TX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 223 | I2S_Stop(LPC_I2S, I2S_RX_MODE); |
lynxeyed_atsu | 0:63ed631d8c3a | 224 | |
lynxeyed_atsu | 0:63ed631d8c3a | 225 | |
lynxeyed_atsu | 0:63ed631d8c3a | 226 | |
lynxeyed_atsu | 0:63ed631d8c3a | 227 | |
lynxeyed_atsu | 0:63ed631d8c3a | 228 | NVIC_EnableIRQ(I2S_IRQn); |
lynxeyed_atsu | 0:63ed631d8c3a | 229 | |
lynxeyed_atsu | 0:63ed631d8c3a | 230 | /* RX FIFO depth is 1, TX FIFO depth is 8. */ |
lynxeyed_atsu | 0:63ed631d8c3a | 231 | I2S_IRQConfig(LPC_I2S,I2S_TX_MODE,8); |
lynxeyed_atsu | 0:63ed631d8c3a | 232 | I2S_IRQConfig(LPC_I2S,I2S_RX_MODE,1); |
lynxeyed_atsu | 0:63ed631d8c3a | 233 | //I2S_IRQCmd(LPC_I2S,I2S_TX_MODE,ENABLE); |
lynxeyed_atsu | 0:63ed631d8c3a | 234 | |
lynxeyed_atsu | 0:63ed631d8c3a | 235 | |
lynxeyed_atsu | 0:63ed631d8c3a | 236 | |
lynxeyed_atsu | 0:63ed631d8c3a | 237 | |
lynxeyed_atsu | 0:63ed631d8c3a | 238 | |
lynxeyed_atsu | 0:63ed631d8c3a | 239 | I2S_Start(LPC_I2S); |
lynxeyed_atsu | 0:63ed631d8c3a | 240 | |
lynxeyed_atsu | 0:63ed631d8c3a | 241 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 242 | |
lynxeyed_atsu | 0:63ed631d8c3a | 243 | |
lynxeyed_atsu | 0:63ed631d8c3a | 244 | |
lynxeyed_atsu | 0:63ed631d8c3a | 245 | |
lynxeyed_atsu | 0:63ed631d8c3a | 246 | |
lynxeyed_atsu | 0:63ed631d8c3a | 247 | |
lynxeyed_atsu | 0:63ed631d8c3a | 248 | |
lynxeyed_atsu | 0:63ed631d8c3a | 249 | |
lynxeyed_atsu | 0:63ed631d8c3a | 250 | |
lynxeyed_atsu | 0:63ed631d8c3a | 251 | |
lynxeyed_atsu | 0:63ed631d8c3a | 252 | |
lynxeyed_atsu | 0:63ed631d8c3a | 253 | #ifdef DEBUG |
lynxeyed_atsu | 0:63ed631d8c3a | 254 | /******************************************************************************* |
lynxeyed_atsu | 0:63ed631d8c3a | 255 | * @brief Reports the name of the source file and the source line number |
lynxeyed_atsu | 0:63ed631d8c3a | 256 | * where the CHECK_PARAM error has occurred. |
lynxeyed_atsu | 0:63ed631d8c3a | 257 | * @param[in] file Pointer to the source file name |
lynxeyed_atsu | 0:63ed631d8c3a | 258 | * @param[in] line assert_param error line source number |
lynxeyed_atsu | 0:63ed631d8c3a | 259 | * @return None |
lynxeyed_atsu | 0:63ed631d8c3a | 260 | *******************************************************************************/ |
lynxeyed_atsu | 0:63ed631d8c3a | 261 | void check_failed(uint8_t *file, uint32_t line) |
lynxeyed_atsu | 0:63ed631d8c3a | 262 | { |
lynxeyed_atsu | 0:63ed631d8c3a | 263 | /* User can add his own implementation to report the file name and line number, |
lynxeyed_atsu | 0:63ed631d8c3a | 264 | ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
lynxeyed_atsu | 0:63ed631d8c3a | 265 | |
lynxeyed_atsu | 0:63ed631d8c3a | 266 | /* Infinite loop */ |
lynxeyed_atsu | 0:63ed631d8c3a | 267 | while(1); |
lynxeyed_atsu | 0:63ed631d8c3a | 268 | } |
lynxeyed_atsu | 0:63ed631d8c3a | 269 | #endif |
lynxeyed_atsu | 0:63ed631d8c3a | 270 | |
lynxeyed_atsu | 0:63ed631d8c3a | 271 | /* |
lynxeyed_atsu | 0:63ed631d8c3a | 272 | * @} |
lynxeyed_atsu | 0:63ed631d8c3a | 273 | */ |