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LINKED LIST TEST on mbed
I2S_Example/lpc17xx_pinsel.c
- Committer:
- lynxeyed_atsu
- Date:
- 2011-02-26
- Revision:
- 0:e8bfffbb3ab6
File content as of revision 0:e8bfffbb3ab6:
/***********************************************************************//** * @file lpc17xx_pinsel.c * @brief Contains all functions support for Pin connect block firmware * library on LPC17xx * @version 2.0 * @date 21. May. 2010 * @author NXP MCU SW Application Team ************************************************************************** * Software that is described herein is for illustrative purposes only * which provides customers with programming information regarding the * products. This software is supplied "AS IS" without any warranties. * NXP Semiconductors assumes no responsibility or liability for the * use of the software, conveys no license or title under any patent, * copyright, or mask work right to the product. NXP Semiconductors * reserves the right to make changes in the software without * notification. NXP Semiconductors also make no representation or * warranty that such application will be suitable for the specified * use without further testing or modification. **********************************************************************/ /* Peripheral group ----------------------------------------------------------- */ /** @addtogroup PINSEL * @{ */ /* Includes ------------------------------------------------------------------- */ #include "lpc17xx_pinsel.h" /* Public Functions ----------------------------------------------------------- */ static void set_PinFunc ( uint8_t portnum, uint8_t pinnum, uint8_t funcnum); static void set_ResistorMode ( uint8_t portnum, uint8_t pinnum, uint8_t modenum); static void set_OpenDrainMode( uint8_t portnum, uint8_t pinnum, uint8_t modenum); /*********************************************************************//** * @brief Setup the pin selection function * @param[in] portnum PORT number, * should be one of the following: * - PINSEL_PORT_0 : Port 0 * - PINSEL_PORT_1 : Port 1 * - PINSEL_PORT_2 : Port 2 * - PINSEL_PORT_3 : Port 3 * * @param[in] pinnum Pin number, * should be one of the following: - PINSEL_PIN_0 : Pin 0 - PINSEL_PIN_1 : Pin 1 - PINSEL_PIN_2 : Pin 2 - PINSEL_PIN_3 : Pin 3 - PINSEL_PIN_4 : Pin 4 - PINSEL_PIN_5 : Pin 5 - PINSEL_PIN_6 : Pin 6 - PINSEL_PIN_7 : Pin 7 - PINSEL_PIN_8 : Pin 8 - PINSEL_PIN_9 : Pin 9 - PINSEL_PIN_10 : Pin 10 - PINSEL_PIN_11 : Pin 11 - PINSEL_PIN_12 : Pin 12 - PINSEL_PIN_13 : Pin 13 - PINSEL_PIN_14 : Pin 14 - PINSEL_PIN_15 : Pin 15 - PINSEL_PIN_16 : Pin 16 - PINSEL_PIN_17 : Pin 17 - PINSEL_PIN_18 : Pin 18 - PINSEL_PIN_19 : Pin 19 - PINSEL_PIN_20 : Pin 20 - PINSEL_PIN_21 : Pin 21 - PINSEL_PIN_22 : Pin 22 - PINSEL_PIN_23 : Pin 23 - PINSEL_PIN_24 : Pin 24 - PINSEL_PIN_25 : Pin 25 - PINSEL_PIN_26 : Pin 26 - PINSEL_PIN_27 : Pin 27 - PINSEL_PIN_28 : Pin 28 - PINSEL_PIN_29 : Pin 29 - PINSEL_PIN_30 : Pin 30 - PINSEL_PIN_31 : Pin 31 * @param[in] funcnum Function number, * should be one of the following: * - PINSEL_FUNC_0 : default function * - PINSEL_FUNC_1 : first alternate function * - PINSEL_FUNC_2 : second alternate function * - PINSEL_FUNC_3 : third alternate function * * @return None **********************************************************************/ static void set_PinFunc ( uint8_t portnum, uint8_t pinnum, uint8_t funcnum) { uint32_t pinnum_t = pinnum; uint32_t pinselreg_idx = 2 * portnum; uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINSEL0; if (pinnum_t >= 16) { pinnum_t -= 16; pinselreg_idx++; } *(uint32_t *)(pPinCon + pinselreg_idx) &= ~(0x03UL << (pinnum_t * 2)); *(uint32_t *)(pPinCon + pinselreg_idx) |= ((uint32_t)funcnum) << (pinnum_t * 2); } /*********************************************************************//** * @brief Setup resistor mode for each pin * @param[in] portnum PORT number, * should be one of the following: * - PINSEL_PORT_0 : Port 0 * - PINSEL_PORT_1 : Port 1 * - PINSEL_PORT_2 : Port 2 * - PINSEL_PORT_3 : Port 3 * @param[in] pinnum Pin number, * should be one of the following: - PINSEL_PIN_0 : Pin 0 - PINSEL_PIN_1 : Pin 1 - PINSEL_PIN_2 : Pin 2 - PINSEL_PIN_3 : Pin 3 - PINSEL_PIN_4 : Pin 4 - PINSEL_PIN_5 : Pin 5 - PINSEL_PIN_6 : Pin 6 - PINSEL_PIN_7 : Pin 7 - PINSEL_PIN_8 : Pin 8 - PINSEL_PIN_9 : Pin 9 - PINSEL_PIN_10 : Pin 10 - PINSEL_PIN_11 : Pin 11 - PINSEL_PIN_12 : Pin 12 - PINSEL_PIN_13 : Pin 13 - PINSEL_PIN_14 : Pin 14 - PINSEL_PIN_15 : Pin 15 - PINSEL_PIN_16 : Pin 16 - PINSEL_PIN_17 : Pin 17 - PINSEL_PIN_18 : Pin 18 - PINSEL_PIN_19 : Pin 19 - PINSEL_PIN_20 : Pin 20 - PINSEL_PIN_21 : Pin 21 - PINSEL_PIN_22 : Pin 22 - PINSEL_PIN_23 : Pin 23 - PINSEL_PIN_24 : Pin 24 - PINSEL_PIN_25 : Pin 25 - PINSEL_PIN_26 : Pin 26 - PINSEL_PIN_27 : Pin 27 - PINSEL_PIN_28 : Pin 28 - PINSEL_PIN_29 : Pin 29 - PINSEL_PIN_30 : Pin 30 - PINSEL_PIN_31 : Pin 31 * @param[in] modenum: Mode number, * should be one of the following: - PINSEL_PINMODE_PULLUP : Internal pull-up resistor - PINSEL_PINMODE_TRISTATE : Tri-state - PINSEL_PINMODE_PULLDOWN : Internal pull-down resistor * @return None **********************************************************************/ void set_ResistorMode ( uint8_t portnum, uint8_t pinnum, uint8_t modenum) { uint32_t pinnum_t = pinnum; uint32_t pinmodereg_idx = 2 * portnum; uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINMODE0; if (pinnum_t >= 16) { pinnum_t -= 16; pinmodereg_idx++ ; } *(uint32_t *)(pPinCon + pinmodereg_idx) &= ~(0x03UL << (pinnum_t * 2)); *(uint32_t *)(pPinCon + pinmodereg_idx) |= ((uint32_t)modenum) << (pinnum_t * 2); } /*********************************************************************//** * @brief Setup Open drain mode for each pin * @param[in] portnum PORT number, * should be one of the following: * - PINSEL_PORT_0 : Port 0 * - PINSEL_PORT_1 : Port 1 * - PINSEL_PORT_2 : Port 2 * - PINSEL_PORT_3 : Port 3 * * @param[in] pinnum Pin number, * should be one of the following: - PINSEL_PIN_0 : Pin 0 - PINSEL_PIN_1 : Pin 1 - PINSEL_PIN_2 : Pin 2 - PINSEL_PIN_3 : Pin 3 - PINSEL_PIN_4 : Pin 4 - PINSEL_PIN_5 : Pin 5 - PINSEL_PIN_6 : Pin 6 - PINSEL_PIN_7 : Pin 7 - PINSEL_PIN_8 : Pin 8 - PINSEL_PIN_9 : Pin 9 - PINSEL_PIN_10 : Pin 10 - PINSEL_PIN_11 : Pin 11 - PINSEL_PIN_12 : Pin 12 - PINSEL_PIN_13 : Pin 13 - PINSEL_PIN_14 : Pin 14 - PINSEL_PIN_15 : Pin 15 - PINSEL_PIN_16 : Pin 16 - PINSEL_PIN_17 : Pin 17 - PINSEL_PIN_18 : Pin 18 - PINSEL_PIN_19 : Pin 19 - PINSEL_PIN_20 : Pin 20 - PINSEL_PIN_21 : Pin 21 - PINSEL_PIN_22 : Pin 22 - PINSEL_PIN_23 : Pin 23 - PINSEL_PIN_24 : Pin 24 - PINSEL_PIN_25 : Pin 25 - PINSEL_PIN_26 : Pin 26 - PINSEL_PIN_27 : Pin 27 - PINSEL_PIN_28 : Pin 28 - PINSEL_PIN_29 : Pin 29 - PINSEL_PIN_30 : Pin 30 - PINSEL_PIN_31 : Pin 31 * @param[in] modenum Open drain mode number, * should be one of the following: * - PINSEL_PINMODE_NORMAL : Pin is in the normal (not open drain) mode * - PINSEL_PINMODE_OPENDRAIN : Pin is in the open drain mode * * @return None **********************************************************************/ void set_OpenDrainMode( uint8_t portnum, uint8_t pinnum, uint8_t modenum) { uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINMODE_OD0; if (modenum == PINSEL_PINMODE_OPENDRAIN){ *(uint32_t *)(pPinCon + portnum) |= (0x01UL << pinnum); } else { *(uint32_t *)(pPinCon + portnum) &= ~(0x01UL << pinnum); } } /* End of Public Functions ---------------------------------------------------- */ /* Public Functions ----------------------------------------------------------- */ /** @addtogroup PINSEL_Public_Functions * @{ */ /*********************************************************************//** * @brief Configure trace function * @param[in] NewState State of the Trace function configuration, * should be one of the following: * - ENABLE : Enable Trace Function * - DISABLE : Disable Trace Function * * @return None **********************************************************************/ void PINSEL_ConfigTraceFunc(FunctionalState NewState) { if (NewState == ENABLE) { LPC_PINCON->PINSEL10 |= (0x01UL << 3); } else if (NewState == DISABLE) { LPC_PINCON->PINSEL10 &= ~(0x01UL << 3); } } /*********************************************************************//** * @brief Setup I2C0 pins * @param[in] i2cPinMode I2C pin mode, * should be one of the following: * - PINSEL_I2C_Normal_Mode : The standard drive mode * - PINSEL_I2C_Fast_Mode : Fast Mode Plus drive mode * * @param[in] filterSlewRateEnable should be: * - ENABLE: Enable filter and slew rate. * - DISABLE: Disable filter and slew rate. * * @return None **********************************************************************/ void PINSEL_SetI2C0Pins(uint8_t i2cPinMode, FunctionalState filterSlewRateEnable) { uint32_t regVal = 0; if (i2cPinMode == PINSEL_I2C_Fast_Mode){ regVal = PINSEL_I2CPADCFG_SCLDRV0 | PINSEL_I2CPADCFG_SDADRV0; } if (filterSlewRateEnable == DISABLE){ regVal = PINSEL_I2CPADCFG_SCLI2C0 | PINSEL_I2CPADCFG_SDAI2C0; } LPC_PINCON->I2CPADCFG = regVal; } /*********************************************************************//** * @brief Configure Pin corresponding to specified parameters passed * in the PinCfg * @param[in] PinCfg Pointer to a PINSEL_CFG_Type structure * that contains the configuration information for the * specified pin. * @return None **********************************************************************/ void PINSEL_ConfigPin(PINSEL_CFG_Type *PinCfg) { set_PinFunc(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Funcnum); set_ResistorMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Pinmode); set_OpenDrainMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->OpenDrain); } /** * @} */ /** * @} */ /* --------------------------------- End Of File ------------------------------ */