| /**************************************************************************//** |
| * @file gpio.c |
| * @version V3.00 |
| * @brief M2351 series General Purpose I/O (GPIO) driver source file |
| * |
| * @note |
| * Copyright (C) 2016 Nuvoton Technology Corp. All rights reserved. |
| *****************************************************************************/ |
| #include "NuMicro.h" |
| |
| |
| /** @addtogroup Standard_Driver Standard Driver |
| @{ |
| */ |
| |
| /** @addtogroup GPIO_Driver GPIO Driver |
| @{ |
| */ |
| |
| /** @addtogroup GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions |
| @{ |
| */ |
| |
| /** |
| * @brief Set GPIO operation mode |
| * |
| * @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH. |
| * @param[in] u32PinMask The single or multiple pins of specified GPIO port. \n |
| * It could be BIT0 ~ BIT15 for PA, PB and PE. \n |
| * It could be BIT0 ~ BIT13 for PC. \n |
| * It could be BIT0 ~ BIT14 for PD. \n |
| * It could be BIT0 ~ BIT11 for PF. \n |
| * It could be BIT2 ~ BIT3, BIT9 ~ BIT15 for PG. \n |
| * It could be BIT4 ~ BIT11 for PH. |
| * @param[in] u32Mode Operation mode. It could be |
| * - \ref GPIO_MODE_INPUT |
| * - \ref GPIO_MODE_OUTPUT |
| * - \ref GPIO_MODE_OPEN_DRAIN |
| * - \ref GPIO_MODE_QUASI |
| * |
| * @return None |
| * |
| * @details This function is used to set specified GPIO operation mode. |
| */ |
| void GPIO_SetMode(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode) |
| { |
| uint32_t u32Idx; |
| |
| for(u32Idx = 0ul; u32Idx < GPIO_PIN_MAX; u32Idx++) |
| { |
| if((u32PinMask & (1ul << u32Idx)) == (1ul << u32Idx)) |
| { |
| port->MODE = (port->MODE & ~(0x3ul << (u32Idx << 1))) | (u32Mode << (u32Idx << 1)); |
| } |
| } |
| } |
| |
| /** |
| * @brief Enable GPIO interrupt |
| * |
| * @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH. |
| * @param[in] u32Pin The pin of specified GPIO port. \n |
| * It could be 0 ~ 15 for PA, PB and PE. \n |
| * It could be 0 ~ 13 for PC GPIO port. \n |
| * It could be 0 ~ 14 for PD GPIO port. \n |
| * It could be 0 ~ 11 for PF GPIO port. \n |
| * It could be 2 ~ 4, 9 ~ 15 for PG GPIO port. \n |
| * It could be 4 ~ 11 for PH GPIO port. |
| * @param[in] u32IntAttribs The interrupt attribute of specified GPIO pin. It could be |
| * - \ref GPIO_INT_RISING |
| * - \ref GPIO_INT_FALLING |
| * - \ref GPIO_INT_BOTH_EDGE |
| * - \ref GPIO_INT_HIGH |
| * - \ref GPIO_INT_LOW |
| * |
| * @return None |
| * |
| * @details This function is used to enable specified GPIO pin interrupt. |
| */ |
| void GPIO_EnableInt(GPIO_T *port, uint32_t u32Pin, uint32_t u32IntAttribs) |
| { |
| /* Configure interrupt mode of specified pin */ |
| port->INTTYPE = (port->INTTYPE & ~(1ul << u32Pin)) | (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin); |
| |
| /* Enable interrupt function of specified pin */ |
| port->INTEN = (port->INTEN & ~(0x00010001ul << u32Pin)) | ((u32IntAttribs & 0xFFFFFFUL) << u32Pin); |
| } |
| |
| |
| /** |
| * @brief Disable GPIO interrupt |
| * |
| |
| * @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH. |
| * @param[in] u32Pin The pin of specified GPIO port. \n |
| * It could be 0 ~ 15 for PA, PB and PE. \n |
| * It could be 0 ~ 13 for PC GPIO port. \n |
| * It could be 0 ~ 14 for PD GPIO port. \n |
| * It could be 0 ~ 11 for PF GPIO port. \n |
| * It could be 2 ~ 4, 9 ~ 15 for PG GPIO port. \n |
| * It could be 4 ~ 11 for PH GPIO port. |
| * |
| * @return None |
| * |
| * @details This function is used to enable specified GPIO pin interrupt. |
| */ |
| void GPIO_DisableInt(GPIO_T *port, uint32_t u32Pin) |
| { |
| /* Configure interrupt mode of specified pin */ |
| port->INTTYPE &= ~(1UL << u32Pin); |
| |
| /* Disable interrupt function of specified pin */ |
| port->INTEN &= ~((0x00010001UL) << u32Pin); |
| } |
| |
| /** |
| * @brief Set GPIO slew rate control |
| * |
| |
| * @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH. |
| * @param[in] u32PinMask The single or multiple pins of specified GPIO port. \n |
| * It could be BIT0 ~ BIT15 for PA, PB and PE. \n |
| * It could be BIT0 ~ BIT13 for PC. \n |
| * It could be BIT0 ~ BIT14 for PD. \n |
| * It could be BIT0 ~ BIT11 for PF. \n |
| * It could be BIT2 ~ BIT3, BIT9 ~ BIT15 for PG. \n |
| * It could be BIT4 ~ BIT11 for PH. |
| * @param[in] u32Mode Slew rate mode. It could be |
| * - \ref GPIO_SLEWCTL_NORMAL (maximum 40 MHz at 2.7V) |
| * - \ref GPIO_SLEWCTL_HIGH (maximum 80 MHz at 2.7V) |
| * - \ref GPIO_SLEWCTL_FAST (maximum 100 MHz at 2.7V) |
| * |
| * @return None |
| * |
| * @details This function is used to set specified GPIO operation mode. |
| */ |
| void GPIO_SetSlewCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode) |
| { |
| uint32_t u32Idx; |
| |
| for(u32Idx = 0ul; u32Idx < GPIO_PIN_MAX; u32Idx++) |
| { |
| if(u32PinMask & (1ul << u32Idx)) |
| { |
| port->SLEWCTL = (port->SLEWCTL & ~(0x3ul << (u32Idx << 1))) | (u32Mode << (u32Idx << 1)); |
| } |
| } |
| } |
| |
| /** |
| * @brief Set GPIO Pull-up and Pull-down control |
| * |
| |
| * @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH. |
| * @param[in] u32PinMask The single or multiple pins of specified GPIO port. \n |
| * It could be BIT0 ~ BIT15 for PA, PB and PE. \n |
| * It could be BIT0 ~ BIT13 for PC. \n |
| * It could be BIT0 ~ BIT14 for PD. \n |
| * It could be BIT0 ~ BIT11 for PF. \n |
| * It could be BIT2 ~ BIT3, BIT9 ~ BIT15 for PG. \n |
| * It could be BIT4 ~ BIT11 for PH. |
| * @param[in] u32Mode The pin mode of specified GPIO pin. It could be |
| * - \ref GPIO_PUSEL_DISABLE |
| * - \ref GPIO_PUSEL_PULL_UP |
| * - \ref GPIO_PUSEL_PULL_DOWN |
| * |
| * @return None |
| * |
| * @details Set the pin mode of specified GPIO pin. |
| */ |
| void GPIO_SetPullCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode) |
| { |
| uint32_t u32Idx; |
| |
| for(u32Idx = 0ul; u32Idx < GPIO_PIN_MAX; u32Idx++) |
| { |
| if(u32PinMask & (1ul << u32Idx)) |
| { |
| port->PUSEL = (port->PUSEL & ~(0x3ul << (u32Idx << 1))) | (u32Mode << (u32Idx << 1)); |
| } |
| } |
| } |
| |
| /*@}*/ /* end of group GPIO_EXPORTED_FUNCTIONS */ |
| |
| /*@}*/ /* end of group GPIO_Driver */ |
| |
| /*@}*/ /* end of group Standard_Driver */ |
| |
| /*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/ |
