USB Serial application
Fork of USBSerial_HelloWorld by
Diff: mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/pinmap.c
- Revision:
- 10:41552d038a69
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/pinmap.c Tue Jan 10 20:42:26 2017 +0000 @@ -0,0 +1,83 @@ +/* mbed Microcontroller Library + * Copyright (c) 2015-2016 Nuvoton + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "mbed_assert.h" +#include "pinmap.h" +#include "PortNames.h" +#include "mbed_error.h" + +/** + * Configure pin multi-function + */ +void pin_function(PinName pin, int data) +{ + MBED_ASSERT(pin != (PinName)NC); + uint32_t pin_index = NU_PINNAME_TO_PIN(pin); + uint32_t port_index = NU_PINNAME_TO_PORT(pin); + __IO uint32_t *GPx_MFPx = ((__IO uint32_t *) &SYS->GPA_MFPL) + port_index * 2 + (pin_index / 8); + //uint32_t MFP_Pos = NU_MFP_POS(pin_index); + uint32_t MFP_Msk = NU_MFP_MSK(pin_index); + + // E.g.: SYS->GPA_MFPL = (SYS->GPA_MFPL & (~SYS_GPA_MFPL_PA0MFP_Msk) ) | SYS_GPA_MFPL_PA0MFP_SC0_CD ; + *GPx_MFPx = (*GPx_MFPx & (~MFP_Msk)) | data; + + // [TODO] Disconnect JTAG-DP + SW-DP signals. + // Warning: Need to reconnect under reset + //if ((pin == PA_13) || (pin == PA_14)) { + // + //} + //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { + // + //} +} + +/** + * Configure pin pull-up/pull-down + */ +void pin_mode(PinName pin, PinMode mode) +{ + MBED_ASSERT(pin != (PinName)NC); + uint32_t pin_index = NU_PINNAME_TO_PIN(pin); + uint32_t port_index = NU_PINNAME_TO_PORT(pin); + GPIO_T *gpio_base = NU_PORT_BASE(port_index); + + uint32_t mode_intern = GPIO_MODE_INPUT; + + switch (mode) { + case PullUp: + mode_intern = GPIO_MODE_INPUT; + break; + + case PullDown: + case PullNone: + // NOTE: Not support + return; + + case PushPull: + mode_intern = GPIO_MODE_OUTPUT; + break; + + case OpenDrain: + mode_intern = GPIO_MODE_OPEN_DRAIN; + break; + + case Quasi: + mode_intern = GPIO_MODE_QUASI; + break; + } + + GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern); +}