Mike Pulice / ublox_C200Test

Integrating the ublox LISA C200 modem

Fork of SprintUSBModemHTTPClientTest by Donatien Garnier

mbed-src/targets/hal/TARGET_NXP/TARGET_LPC176X/sleep.c@5:3f93dd1d4cb3, 2013-09-26 (annotated)

Committer:
sam_grove
Date:
Thu Sep 26 00:44:20 2013 -0500
Revision:
5:3f93dd1d4cb3
Exported program and replaced contents of the repo with the source

to build and debug using keil mdk. Libs NOT upto date are lwip, lwip-sys

and socket. these have newer versions under mbed_official but were starting

from a know working point

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sam_grove 5:3f93dd1d4cb3 1 /* mbed Microcontroller Library
sam_grove 5:3f93dd1d4cb3 2 * Copyright (c) 2006-2013 ARM Limited
sam_grove 5:3f93dd1d4cb3 3 *
sam_grove 5:3f93dd1d4cb3 4 * Licensed under the Apache License, Version 2.0 (the "License");
sam_grove 5:3f93dd1d4cb3 5 * you may not use this file except in compliance with the License.
sam_grove 5:3f93dd1d4cb3 6 * You may obtain a copy of the License at
sam_grove 5:3f93dd1d4cb3 7 *
sam_grove 5:3f93dd1d4cb3 8 * http://www.apache.org/licenses/LICENSE-2.0
sam_grove 5:3f93dd1d4cb3 9 *
sam_grove 5:3f93dd1d4cb3 10 * Unless required by applicable law or agreed to in writing, software
sam_grove 5:3f93dd1d4cb3 11 * distributed under the License is distributed on an "AS IS" BASIS,
sam_grove 5:3f93dd1d4cb3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sam_grove 5:3f93dd1d4cb3 13 * See the License for the specific language governing permissions and
sam_grove 5:3f93dd1d4cb3 14 * limitations under the License.
sam_grove 5:3f93dd1d4cb3 15 */
sam_grove 5:3f93dd1d4cb3 16 #include "sleep_api.h"
sam_grove 5:3f93dd1d4cb3 17 #include "cmsis.h"
sam_grove 5:3f93dd1d4cb3 18 #include "mbed_interface.h"
sam_grove 5:3f93dd1d4cb3 19
sam_grove 5:3f93dd1d4cb3 20 void sleep(void) {
sam_grove 5:3f93dd1d4cb3 21 // ensure debug is disconnected
sam_grove 5:3f93dd1d4cb3 22 mbed_interface_disconnect();
sam_grove 5:3f93dd1d4cb3 23
sam_grove 5:3f93dd1d4cb3 24 // PCON[PD] set to sleep
sam_grove 5:3f93dd1d4cb3 25 LPC_SC->PCON = 0x0;
sam_grove 5:3f93dd1d4cb3 26
sam_grove 5:3f93dd1d4cb3 27 // SRC[SLEEPDEEP] set to 0 = sleep
sam_grove 5:3f93dd1d4cb3 28 SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
sam_grove 5:3f93dd1d4cb3 29
sam_grove 5:3f93dd1d4cb3 30 // wait for interrupt
sam_grove 5:3f93dd1d4cb3 31 __WFI();
sam_grove 5:3f93dd1d4cb3 32 }
sam_grove 5:3f93dd1d4cb3 33
sam_grove 5:3f93dd1d4cb3 34 /*
sam_grove 5:3f93dd1d4cb3 35 * The mbed lpc1768 does not support the deepsleep mode
sam_grove 5:3f93dd1d4cb3 36 * as a debugger is connected to it (the mbed interface).
sam_grove 5:3f93dd1d4cb3 37 *
sam_grove 5:3f93dd1d4cb3 38 * As mentionned in an application note from NXP:
sam_grove 5:3f93dd1d4cb3 39 *
sam_grove 5:3f93dd1d4cb3 40 * http://www.po-star.com/public/uploads/20120319123122_141.pdf
sam_grove 5:3f93dd1d4cb3 41 *
sam_grove 5:3f93dd1d4cb3 42 * {{{
sam_grove 5:3f93dd1d4cb3 43 * The user should be aware of certain limitations during debugging.
sam_grove 5:3f93dd1d4cb3 44 * The most important is that, due to limitations of the Cortex-M3
sam_grove 5:3f93dd1d4cb3 45 * integration, the LPC17xx cannot wake up in the usual manner from
sam_grove 5:3f93dd1d4cb3 46 * Deep Sleep and Power-down modes. It is recommended not to use these
sam_grove 5:3f93dd1d4cb3 47 * modes during debug. Once an application is downloaded via JTAG/SWD
sam_grove 5:3f93dd1d4cb3 48 * interface, the USB to SWD/JTAG debug adapter (Keil ULINK2 for example)
sam_grove 5:3f93dd1d4cb3 49 * should be removed from the target board, and thereafter, power cycle
sam_grove 5:3f93dd1d4cb3 50 * the LPC17xx to allow wake-up from deep sleep and power-down modes
sam_grove 5:3f93dd1d4cb3 51 * }}}
sam_grove 5:3f93dd1d4cb3 52 *
sam_grove 5:3f93dd1d4cb3 53 * As the interface firmware does not reset the target when a
sam_grove 5:3f93dd1d4cb3 54 * mbed_interface_disconnect() semihosting call is made, the
sam_grove 5:3f93dd1d4cb3 55 * core cannot wake-up from deepsleep.
sam_grove 5:3f93dd1d4cb3 56 *
sam_grove 5:3f93dd1d4cb3 57 * We treat a deepsleep() as a normal sleep().
sam_grove 5:3f93dd1d4cb3 58 */
sam_grove 5:3f93dd1d4cb3 59
sam_grove 5:3f93dd1d4cb3 60 void deepsleep(void) {
sam_grove 5:3f93dd1d4cb3 61 // ensure debug is disconnected
sam_grove 5:3f93dd1d4cb3 62 mbed_interface_disconnect();
sam_grove 5:3f93dd1d4cb3 63
sam_grove 5:3f93dd1d4cb3 64 // PCON[PD] set to deepsleep
sam_grove 5:3f93dd1d4cb3 65 sleep();
sam_grove 5:3f93dd1d4cb3 66 }