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mbed-dev/targets/TARGET_NUVOTON/TARGET_M451/pinmap.c
- Committer:
- danix
- Date:
- 2018-01-21
- Revision:
- 12:3a30cdffa27c
- Parent:
- 10:41552d038a69
File content as of revision 12:3a30cdffa27c:
/* 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); }