Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

targets/hal/TARGET_Freescale/TARGET_K20D5M/port_api.c@68:41613245dfd7, 2013-12-26 (annotated)

Committer:
mbed_official
Date:
Thu Dec 26 13:00:06 2013 +0000
Revision:
68:41613245dfd7
Synchronized with git revision fba199a9c4445231b0f38e1e113c118182635546



Full URL: https://github.com/mbedmicro/mbed/commit/fba199a9c4445231b0f38e1e113c118182635546/



target K20D5M

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 68:41613245dfd7 1 /* mbed Microcontroller Library
mbed_official 68:41613245dfd7 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 68:41613245dfd7 3 *
mbed_official 68:41613245dfd7 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 68:41613245dfd7 5 * you may not use this file except in compliance with the License.
mbed_official 68:41613245dfd7 6 * You may obtain a copy of the License at
mbed_official 68:41613245dfd7 7 *
mbed_official 68:41613245dfd7 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 68:41613245dfd7 9 *
mbed_official 68:41613245dfd7 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 68:41613245dfd7 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 68:41613245dfd7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 68:41613245dfd7 13 * See the License for the specific language governing permissions and
mbed_official 68:41613245dfd7 14 * limitations under the License.
mbed_official 68:41613245dfd7 15 */
mbed_official 68:41613245dfd7 16 #include "port_api.h"
mbed_official 68:41613245dfd7 17 #include "pinmap.h"
mbed_official 68:41613245dfd7 18 #include "gpio_api.h"
mbed_official 68:41613245dfd7 19
mbed_official 68:41613245dfd7 20 PinName port_pin(PortName port, int pin_n) {
mbed_official 68:41613245dfd7 21 return (PinName)((port << PORT_SHIFT) | (pin_n << 2));
mbed_official 68:41613245dfd7 22 }
mbed_official 68:41613245dfd7 23
mbed_official 68:41613245dfd7 24 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 68:41613245dfd7 25 obj->port = port;
mbed_official 68:41613245dfd7 26 obj->mask = mask;
mbed_official 68:41613245dfd7 27
mbed_official 68:41613245dfd7 28 GPIO_Type *reg = (GPIO_Type *)(PTA_BASE + port * 0x40);
mbed_official 68:41613245dfd7 29
mbed_official 68:41613245dfd7 30 obj->reg_out = &reg->PDOR;
mbed_official 68:41613245dfd7 31 obj->reg_in = &reg->PDIR;
mbed_official 68:41613245dfd7 32 obj->reg_dir = &reg->PDDR;
mbed_official 68:41613245dfd7 33
mbed_official 68:41613245dfd7 34 uint32_t i;
mbed_official 68:41613245dfd7 35 // The function is set per pin: reuse gpio logic
mbed_official 68:41613245dfd7 36 for (i=0; i<32; i++) {
mbed_official 68:41613245dfd7 37 if (obj->mask & (1<<i)) {
mbed_official 68:41613245dfd7 38 gpio_set(port_pin(obj->port, i));
mbed_official 68:41613245dfd7 39 }
mbed_official 68:41613245dfd7 40 }
mbed_official 68:41613245dfd7 41
mbed_official 68:41613245dfd7 42 port_dir(obj, dir);
mbed_official 68:41613245dfd7 43 }
mbed_official 68:41613245dfd7 44
mbed_official 68:41613245dfd7 45 void port_mode(port_t *obj, PinMode mode) {
mbed_official 68:41613245dfd7 46 uint32_t i;
mbed_official 68:41613245dfd7 47 // The mode is set per pin: reuse pinmap logic
mbed_official 68:41613245dfd7 48 for (i=0; i<32; i++) {
mbed_official 68:41613245dfd7 49 if (obj->mask & (1<<i)) {
mbed_official 68:41613245dfd7 50 pin_mode(port_pin(obj->port, i), mode);
mbed_official 68:41613245dfd7 51 }
mbed_official 68:41613245dfd7 52 }
mbed_official 68:41613245dfd7 53 }
mbed_official 68:41613245dfd7 54
mbed_official 68:41613245dfd7 55 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 68:41613245dfd7 56 switch (dir) {
mbed_official 68:41613245dfd7 57 case PIN_INPUT :
mbed_official 68:41613245dfd7 58 *obj->reg_dir &= ~obj->mask;
mbed_official 68:41613245dfd7 59 break;
mbed_official 68:41613245dfd7 60 case PIN_OUTPUT:
mbed_official 68:41613245dfd7 61 *obj->reg_dir |= obj->mask;
mbed_official 68:41613245dfd7 62 break;
mbed_official 68:41613245dfd7 63 }
mbed_official 68:41613245dfd7 64 }
mbed_official 68:41613245dfd7 65
mbed_official 68:41613245dfd7 66 void port_write(port_t *obj, int value) {
mbed_official 68:41613245dfd7 67 *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask);
mbed_official 68:41613245dfd7 68 }
mbed_official 68:41613245dfd7 69
mbed_official 68:41613245dfd7 70 int port_read(port_t *obj) {
mbed_official 68:41613245dfd7 71 return (*obj->reg_in & obj->mask);
mbed_official 68:41613245dfd7 72 }