USB Serial application
Fork of USBSerial_HelloWorld by
mbed-dev/targets/TARGET_NXP/TARGET_LPC15XX/pinmap.c@10:41552d038a69, 2017-01-10 (annotated)
- Committer:
- Zaitsev
- Date:
- Tue Jan 10 20:42:26 2017 +0000
- Revision:
- 10:41552d038a69
USB Serial bi-directional bridge
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Zaitsev | 10:41552d038a69 | 1 | /* mbed Microcontroller Library |
Zaitsev | 10:41552d038a69 | 2 | * Copyright (c) 2006-2013 ARM Limited |
Zaitsev | 10:41552d038a69 | 3 | * |
Zaitsev | 10:41552d038a69 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Zaitsev | 10:41552d038a69 | 5 | * you may not use this file except in compliance with the License. |
Zaitsev | 10:41552d038a69 | 6 | * You may obtain a copy of the License at |
Zaitsev | 10:41552d038a69 | 7 | * |
Zaitsev | 10:41552d038a69 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
Zaitsev | 10:41552d038a69 | 9 | * |
Zaitsev | 10:41552d038a69 | 10 | * Unless required by applicable law or agreed to in writing, software |
Zaitsev | 10:41552d038a69 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
Zaitsev | 10:41552d038a69 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Zaitsev | 10:41552d038a69 | 13 | * See the License for the specific language governing permissions and |
Zaitsev | 10:41552d038a69 | 14 | * limitations under the License. |
Zaitsev | 10:41552d038a69 | 15 | */ |
Zaitsev | 10:41552d038a69 | 16 | #include "mbed_assert.h" |
Zaitsev | 10:41552d038a69 | 17 | #include "pinmap.h" |
Zaitsev | 10:41552d038a69 | 18 | #include "mbed_error.h" |
Zaitsev | 10:41552d038a69 | 19 | |
Zaitsev | 10:41552d038a69 | 20 | void pin_function(PinName pin, int function) { |
Zaitsev | 10:41552d038a69 | 21 | } |
Zaitsev | 10:41552d038a69 | 22 | |
Zaitsev | 10:41552d038a69 | 23 | void pin_mode(PinName pin, PinMode mode) { |
Zaitsev | 10:41552d038a69 | 24 | MBED_ASSERT(pin != (PinName)NC); |
Zaitsev | 10:41552d038a69 | 25 | |
Zaitsev | 10:41552d038a69 | 26 | if ((pin == P0_22) || (pin == P0_23)) { |
Zaitsev | 10:41552d038a69 | 27 | // The true open-drain pins PIO0_22 and PIO0_23 can be configured for different I2C-bus speeds. |
Zaitsev | 10:41552d038a69 | 28 | return; |
Zaitsev | 10:41552d038a69 | 29 | } |
Zaitsev | 10:41552d038a69 | 30 | |
Zaitsev | 10:41552d038a69 | 31 | __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin * 4)); |
Zaitsev | 10:41552d038a69 | 32 | |
Zaitsev | 10:41552d038a69 | 33 | if (mode == OpenDrain) { |
Zaitsev | 10:41552d038a69 | 34 | *reg |= (1 << 10); |
Zaitsev | 10:41552d038a69 | 35 | } else { |
Zaitsev | 10:41552d038a69 | 36 | uint32_t tmp = *reg; |
Zaitsev | 10:41552d038a69 | 37 | tmp &= ~(0x3 << 3); |
Zaitsev | 10:41552d038a69 | 38 | tmp |= (mode & 0x3) << 3; |
Zaitsev | 10:41552d038a69 | 39 | *reg = tmp; |
Zaitsev | 10:41552d038a69 | 40 | } |
Zaitsev | 10:41552d038a69 | 41 | } |