Prof Greg Egan / Mbed 2 deprecated UAVXArm-GKE

UAVX Multicopter Flight Controller.

Dependencies:   mbed

Methods/.svn/text-base/sb_uart2.cpp.svn-base@2:90292f8bd179, 2011-04-26 (annotated)

Committer:
gke
Date:
Tue Apr 26 12:12:29 2011 +0000
Revision:
2:90292f8bd179
Parent:
1:1e3318a30ddd 
Not flightworthy. Posted for others to make use of the I2C SW code.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gke 1:1e3318a30ddd 1 /*
gke 1:1e3318a30ddd 2 Copyright (c) 2010 Andy Kirkham
gke 1:1e3318a30ddd 3
gke 1:1e3318a30ddd 4 Permission is hereby granted, free of charge, to any person obtaining a copy
gke 1:1e3318a30ddd 5 of this software and associated documentation files (the "Software"), to deal
gke 1:1e3318a30ddd 6 in the Software without restriction, including without limitation the rights
gke 1:1e3318a30ddd 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gke 1:1e3318a30ddd 8 copies of the Software, and to permit persons to whom the Software is
gke 1:1e3318a30ddd 9 furnished to do so, subject to the following conditions:
gke 1:1e3318a30ddd 10
gke 1:1e3318a30ddd 11 The above copyright notice and this permission notice shall be included in
gke 1:1e3318a30ddd 12 all copies or substantial portions of the Software.
gke 1:1e3318a30ddd 13
gke 1:1e3318a30ddd 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gke 1:1e3318a30ddd 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gke 1:1e3318a30ddd 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gke 1:1e3318a30ddd 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gke 1:1e3318a30ddd 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gke 1:1e3318a30ddd 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
gke 1:1e3318a30ddd 20 THE SOFTWARE.
gke 1:1e3318a30ddd 21 */
gke 1:1e3318a30ddd 22
gke 1:1e3318a30ddd 23 #include "../SerialBuffered.h"
gke 1:1e3318a30ddd 24 #include "../sb_globals.h"
gke 1:1e3318a30ddd 25
gke 1:1e3318a30ddd 26 extern "C" void SerialBuffered_ISR(unsigned long, int);
gke 1:1e3318a30ddd 27
gke 1:1e3318a30ddd 28 extern "C" static void SerialBuffered_ISR_2(void) __irq { SerialBuffered_ISR(LPC_UART2_BASE, 2); }
gke 1:1e3318a30ddd 29
gke 1:1e3318a30ddd 30 void SerialBuffered::set_uart2(PinName tx, PinName rx) {
gke 1:1e3318a30ddd 31 volatile char c __attribute__((unused));
gke 1:1e3318a30ddd 32 unsigned ier = 0;
gke 1:1e3318a30ddd 33
gke 1:1e3318a30ddd 34 if (tx == NC && rx == NC) return; // Eh, why would one?
gke 1:1e3318a30ddd 35
gke 1:1e3318a30ddd 36 LPC_SC->PCONP |= (1UL << 24);
gke 1:1e3318a30ddd 37 LPC_SC->PCLKSEL1 &= ~(3UL << 16);
gke 1:1e3318a30ddd 38 LPC_SC->PCLKSEL1 |= (1UL << 16);
gke 1:1e3318a30ddd 39 if (rx == p27) {
gke 1:1e3318a30ddd 40 set_rx_buffer_size(SERIALBUFFERED_BUFFER_SIZE);
gke 1:1e3318a30ddd 41 LPC_PINCON->PINSEL0 &= ~(3UL << 22);
gke 1:1e3318a30ddd 42 LPC_PINCON->PINSEL0 |= (1UL << 22);
gke 1:1e3318a30ddd 43 ier |= 1;
gke 1:1e3318a30ddd 44 }
gke 1:1e3318a30ddd 45 else { reset_uart_rx(2); }
gke 1:1e3318a30ddd 46 if (tx == p28) {
gke 1:1e3318a30ddd 47 set_tx_buffer_size(SERIALBUFFERED_BUFFER_SIZE);
gke 1:1e3318a30ddd 48 LPC_PINCON->PINSEL0 &= ~(3UL << 20);
gke 1:1e3318a30ddd 49 LPC_PINCON->PINSEL0 |= (1UL << 20);
gke 1:1e3318a30ddd 50 ier |= 2;
gke 1:1e3318a30ddd 51 }
gke 1:1e3318a30ddd 52 else { reset_uart_tx(2); }
gke 1:1e3318a30ddd 53
gke 1:1e3318a30ddd 54 if (ier) {
gke 1:1e3318a30ddd 55 baud(9600);
gke 1:1e3318a30ddd 56 format(SerialBuffered::WordLength8, SerialBuffered::NoParity, SerialBuffered::StopBit1);
gke 1:1e3318a30ddd 57 LPC_UART2->FCR = 0x7;
gke 1:1e3318a30ddd 58 NVIC_SetVector(UART2_IRQn, (uint32_t)SerialBuffered_ISR_2);
gke 1:1e3318a30ddd 59 NVIC_EnableIRQ(UART2_IRQn);
gke 1:1e3318a30ddd 60 LPC_UART2->IER = ier;
gke 1:1e3318a30ddd 61 }
gke 1:1e3318a30ddd 62 }
gke 1:1e3318a30ddd 63