LPC1700CMSIS Standard Peripheral Firmware Library: C:/nxpdrv/LPC1700CMSIS/Drivers/source/lpc17xx_pinsel.c Source File

LPC1700CMSIS

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C:/nxpdrv/LPC1700CMSIS/Drivers/source/lpc17xx_pinsel.c

00001 
00021 /* Peripheral group ----------------------------------------------------------- */
00026 /* Includes ------------------------------------------------------------------- */
00027 #include "lpc17xx_pinsel.h"
00028 
00029 
00030 /* Public Functions ----------------------------------------------------------- */
00035 /*********************************************************************/
00088 void PINSEL_SetPinFunc ( uint8_t portnum, uint8_t pinnum, uint8_t funcnum)
00089 {
00090         uint32_t pinnum_t = pinnum;
00091         uint32_t pinselreg_idx = 2 * portnum;
00092         uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINSEL0;
00093 
00094         if (pinnum_t >= 16) {
00095                 pinnum_t -= 16;
00096                 pinselreg_idx++;
00097         }
00098         *(uint32_t *)(pPinCon + pinselreg_idx) &= ~(0x03UL << (pinnum_t * 2));
00099         *(uint32_t *)(pPinCon + pinselreg_idx) |= ((uint32_t)funcnum) << (pinnum_t * 2);
00100 }
00101 
00102 
00103 
00104 /*********************************************************************/
00113 void PINSEL_ConfigTraceFunc(FunctionalState NewState)
00114 {
00115         if (NewState == ENABLE) {
00116                 LPC_PINCON->PINSEL10 |= (0x01UL << 3);
00117         } else if (NewState == DISABLE) {
00118                 LPC_PINCON->PINSEL10 &= ~(0x01UL << 3);
00119         }
00120 }
00121 
00122 
00123 
00124 /*********************************************************************/
00175 void PINSEL_SetResistorMode ( uint8_t portnum, uint8_t pinnum, uint8_t modenum)
00176 {
00177         uint32_t pinnum_t = pinnum;
00178         uint32_t pinmodereg_idx = 2 * portnum;
00179         uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINMODE0;
00180 
00181         if (pinnum_t >= 16) {
00182                 pinnum_t -= 16;
00183                 pinmodereg_idx++ ;
00184         }
00185 
00186         *(uint32_t *)(pPinCon + pinmodereg_idx) &= ~(0x03UL << (pinnum_t * 2));
00187         *(uint32_t *)(pPinCon + pinmodereg_idx) |= ((uint32_t)modenum) << (pinnum_t * 2);
00188 }
00189 
00190 
00191 
00192 /*********************************************************************/
00243 void PINSEL_SetOpenDrainMode( uint8_t portnum, uint8_t pinnum, uint8_t modenum)
00244 {
00245         uint32_t *pPinCon = (uint32_t *)&LPC_PINCON->PINMODE_OD0;
00246 
00247         if (modenum == PINSEL_PINMODE_OPENDRAIN){
00248                 *(uint32_t *)(pPinCon + portnum) |= (0x01UL << pinnum);
00249         } else {
00250                 *(uint32_t *)(pPinCon + portnum) &= ~(0x01UL << pinnum);
00251         }
00252 }
00253 
00254 
00255 
00256 /*********************************************************************/
00269 void PINSEL_SetI2C0Pins(uint8_t i2cPinMode, FunctionalState filterSlewRateEnable)
00270 {
00271         uint32_t regVal;
00272 
00273         if (i2cPinMode == PINSEL_I2C_Fast_Mode){
00274                 regVal = PINSEL_I2CPADCFG_SCLDRV0 | PINSEL_I2CPADCFG_SDADRV0;
00275         }
00276 
00277         if (filterSlewRateEnable == DISABLE){
00278                 regVal = PINSEL_I2CPADCFG_SCLI2C0 | PINSEL_I2CPADCFG_SDAI2C0;
00279         }
00280         LPC_PINCON->I2CPADCFG = regVal;
00281 }
00282 
00283 
00284 /*********************************************************************/
00292 void PINSEL_ConfigPin(PINSEL_CFG_Type *PinCfg)
00293 {
00294         PINSEL_SetPinFunc(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Funcnum);
00295         PINSEL_SetResistorMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Pinmode);
00296         PINSEL_SetOpenDrainMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->OpenDrain);
00297 }
00298 
00299 
00308 /* --------------------------------- End Of File ------------------------------ */
Generated on Mon Feb 8 10:01:38 2010 for LPC1700CMSIS Standard Peripheral Firmware Library by
1.5.9
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