Mike Digman / MODSERIAL

Fork of MODSERIAL that works with LPC4088

Fork of MODSERIAL by Andy K

ChangeLog.c@23:5c45c21f36b7, 2012-07-25 (annotated)

Committer:
AjK
Date:
Wed Jul 25 22:27:49 2012 +0000
Revision:
23:5c45c21f36b7
Parent:
22:c11ea36f17f9
Child:
24:9c456e647a8f
Add support for LPC11U24

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 1:b7e435fbfe8e 1 /* $Id:$
AjK 2:b936b4acbd92 2
AjK 23:5c45c21f36b7 3 1.23 25th July 2012
AjK 23:5c45c21f36b7 4
AjK 23:5c45c21f36b7 5 * LPC1768 code as was. This release includes "alpha" support for the LPC11U24
AjK 23:5c45c21f36b7 6
AjK 22:c11ea36f17f9 7 1.22 19th April 2012
AjK 22:c11ea36f17f9 8
AjK 22:c11ea36f17f9 9 * http://mbed.org/forum/bugs-suggestions/topic/2936/
AjK 22:c11ea36f17f9 10 * Bug fix, protect important buffer pointers from IRQ corruption.
AjK 22:c11ea36f17f9 11 Credits:
AjK 22:c11ea36f17f9 12 Anthony Wieser http://mbed.org/users/WieserSoftwareLtd/ for the fix.
AjK 22:c11ea36f17f9 13 BlazeX http://mbed.org/users/BlazeX/ for the alert that a fix was needed!
AjK 22:c11ea36f17f9 14
AjK 21:af2af4c61c2f 15 1.21 10 May 2011
AjK 21:af2af4c61c2f 16
AjK 21:af2af4c61c2f 17 * http://mbed.org/forum/mbed/topic/2264
AjK 21:af2af4c61c2f 18
AjK 20:59c74aaedda2 19 1.20 26 April 2011
AjK 20:59c74aaedda2 20
AjK 20:59c74aaedda2 21 * Bug fix, not blocking on transmit
AjK 20:59c74aaedda2 22 by Erik Petrich, http://mbed.org/forum/bugs-suggestions/topic/2200
AjK 20:59c74aaedda2 23
AjK 20:59c74aaedda2 24 1.19 20 April 2011
AjK 20:59c74aaedda2 25
AjK 20:59c74aaedda2 26 * Fixed some doxygen comment bugs.
AjK 20:59c74aaedda2 27
AjK 18:21ef26402365 28 1.18 20 April 2011
AjK 18:21ef26402365 29
AjK 18:21ef26402365 30 * All callbacks now use MODSERIAL_callback (rather than Mbed's FunctionPointer[1] type)
AjK 18:21ef26402365 31 to store and invoke it's callbacks. This allows MODSERIAL to pass a parameter
AjK 18:21ef26402365 32 to callbacks. The function prototype is now void func(MODSERIAL_IRQ_INFO *q).
AjK 18:21ef26402365 33 * Callbacks now pass a pointer to a MODSERIAL_IRQ_INFO class type.
AjK 18:21ef26402365 34 This class holds a pointer to the MODSERIAL object that invoked the callback
AjK 18:21ef26402365 35 thus freeing callbacks need to use the global variable of the original
AjK 18:21ef26402365 36 MODSERIAL instance.
AjK 18:21ef26402365 37 * MODSERIAL_IRQ_INFO also declares public functions that are protected within MODSERIAL
AjK 18:21ef26402365 38 thus allowing certain functions to be restricted to callback context only.
AjK 18:21ef26402365 39 * New function MODSERIAL_IRQ_INFO::rxDiscardLastChar() allows an rxCallback function
AjK 18:21ef26402365 40 to remove the character that was just placed into the RX buffer.
AjK 18:21ef26402365 41
AjK 18:21ef26402365 42 [1] http://mbed.org/users/AjK/libraries/FPointer/latest/docs/
AjK 18:21ef26402365 43
AjK 17:6c9b57c14868 44 1.17 08/Mar/2011
AjK 17:6c9b57c14868 45 Fixed a memory leak in the DMA code.
AjK 17:6c9b57c14868 46
AjK 16:8b1dbf4cce4e 47 1.16 - 12 Feb 2011
AjK 16:8b1dbf4cce4e 48
AjK 16:8b1dbf4cce4e 49 * Missed one, doh!
AjK 16:8b1dbf4cce4e 50
AjK 15:a1d9e745d71e 51 1.15 - 12 Feb 2011
AjK 15:a1d9e745d71e 52
AjK 15:a1d9e745d71e 53 * Fixed some typos.
AjK 15:a1d9e745d71e 54
AjK 14:3c3b87617bfe 55 1.14 - 7 Feb 2011
AjK 14:3c3b87617bfe 56
AjK 14:3c3b87617bfe 57 * Fixed a bug in __putc() that caused the output buffer pointer to
AjK 14:3c3b87617bfe 58 become corrupted.
AjK 14:3c3b87617bfe 59
AjK 13:70bb7c1769fa 60 1.13 - 20/01/2011
AjK 13:70bb7c1769fa 61
AjK 13:70bb7c1769fa 62 * Added extra documentation.
AjK 13:70bb7c1769fa 63 * Fixed some typos.
AjK 13:70bb7c1769fa 64
AjK 12:8c7394e2ae7f 65 1.12 - 20/01/2011
AjK 12:8c7394e2ae7f 66
AjK 12:8c7394e2ae7f 67 * Added new "autoDetectChar()" function. To use:-
AjK 12:8c7394e2ae7f 68 1st: Add a callback to invoke when the char is detected:-
AjK 12:8c7394e2ae7f 69 .attach(&detectedChar, MODSERIAL::RxAutoDetect);
AjK 12:8c7394e2ae7f 70 2nd: Send the char to detect.
AjK 12:8c7394e2ae7f 71 .autoDectectChar('\n');
AjK 12:8c7394e2ae7f 72 Whenever that char goes into the RX buffer your callback will be invoked.
AjK 12:8c7394e2ae7f 73 Added example2.cpp to demo a simple messaging system using this auto feature.
AjK 12:8c7394e2ae7f 74
AjK 12:8c7394e2ae7f 75
AjK 11:a93a62eeeb9d 76 1.11 - 23/11/2010
AjK 11:a93a62eeeb9d 77
AjK 11:a93a62eeeb9d 78 * Fixed a minor issue with 1.10 missed an alteration of name change.
AjK 11:a93a62eeeb9d 79
AjK 10:725fe81aa9ff 80 1.10 - 23/11/2010
AjK 10:725fe81aa9ff 81
AjK 18:21ef26402365 82 * Rename the DMA callback from attach_dma_complete() to attach_dmaSendComplete()
AjK 10:725fe81aa9ff 83
AjK 9:b3cdae80e7a9 84 1.9 - 23/11/2010
AjK 9:b3cdae80e7a9 85
AjK 9:b3cdae80e7a9 86 * Added support for DMA sending of characters. Required is
AjK 9:b3cdae80e7a9 87 the MODDMA library module:-
AjK 9:b3cdae80e7a9 88 http://mbed.org/users/AjK/libraries/MODDMA/latest
AjK 9:b3cdae80e7a9 89 See example_dma.cpp for more information.
AjK 9:b3cdae80e7a9 90
AjK 8:775f860e94d3 91 1.8 - 22/11/2010
AjK 8:775f860e94d3 92
AjK 8:775f860e94d3 93 * Added code so that if a buffer is set to zero length then
AjK 8:775f860e94d3 94 MODSERIAL defaults to just using the FIFO for that stream
AjK 8:775f860e94d3 95 thus making the library "fall back" to teh same operation
AjK 8:775f860e94d3 96 that the Mbed Serial library performs.
AjK 8:775f860e94d3 97 * Removed dmaSend() function that should have been removed
AjK 8:775f860e94d3 98 at 1.7
AjK 8:775f860e94d3 99
AjK 7:ffa4a7cb7f8d 100 1.7 - 21/11/2010
AjK 7:ffa4a7cb7f8d 101
AjK 7:ffa4a7cb7f8d 102 * Remove the DMA enum from MODSERIAL.h as it's not currently
AjK 7:ffa4a7cb7f8d 103 ready for release.
AjK 7:ffa4a7cb7f8d 104 * Added page doxygen comments.
AjK 7:ffa4a7cb7f8d 105
AjK 6:c8f77fe1cc10 106 1.6 - 21/11/2010
AjK 6:c8f77fe1cc10 107
AjK 6:c8f77fe1cc10 108 * Version 1.5 solved a blocking problem on putc() when called
AjK 6:c8f77fe1cc10 109 from another ISR. However, isr_tx() invokes a callback of it's
AjK 6:c8f77fe1cc10 110 own when a byte is tranferred from TX buffer to TX FIFO. User
AjK 6:c8f77fe1cc10 111 programs may interpret that as an IRQ callback. That's an ISR
AjK 6:c8f77fe1cc10 112 call from within an existing ISR which is not good. So the
AjK 6:c8f77fe1cc10 113 TxIrq callback from isr_tx is now conditional. It will only
AjK 6:c8f77fe1cc10 114 be called when isr_tx() is actually within it's own ISR and
AjK 6:c8f77fe1cc10 115 not when called from alternate ISR handlers.
AjK 6:c8f77fe1cc10 116
AjK 5:8365c4cf8f33 117 1.5 - 21/11/2010
AjK 5:8365c4cf8f33 118
AjK 5:8365c4cf8f33 119 * Calling putc() (or any derived function that uses it like
AjK 5:8365c4cf8f33 120 printf()) while inside an interrupt service routine can
AjK 5:8365c4cf8f33 121 cause the system to lock up if the TX buffer is full. This
AjK 5:8365c4cf8f33 122 is because bytes are only transferred from the TX buffer to
AjK 5:8365c4cf8f33 123 the TX FIFO via the TX ISR. If we are, say in an RX ISR already,
AjK 5:8365c4cf8f33 124 then the TX ISR will never trigger. The TX buffer stays full and
AjK 5:8365c4cf8f33 125 there is never space to putc() the byte. So, while putc() blocks
AjK 5:8365c4cf8f33 126 waiting for space it calls isr_tx() to ensure if TX FIFO space
AjK 5:8365c4cf8f33 127 becomes available it will move bytes from the TX buffer to TX
AjK 5:8365c4cf8f33 128 FIFO thus removing the blocking condition within putc().
AjK 5:8365c4cf8f33 129
AjK 4:28de979b77cf 130 1.4 - 21/11/2010
AjK 4:28de979b77cf 131
AjK 4:28de979b77cf 132 * Removed all the new DMA code. I wish mbed.org had proper SVN
AjK 4:28de979b77cf 133 versioning, I'm use to working in HEAD and BRANCHES after I've
AjK 4:28de979b77cf 134 released a project. Getting bug reports in current releases
AjK 4:28de979b77cf 135 while trying to dev new code is hard to manage without source
AjK 4:28de979b77cf 136 control of some type!
AjK 4:28de979b77cf 137
AjK 2:b936b4acbd92 138 1.3 - 21/11/2010
AjK 2:b936b4acbd92 139
AjK 2:b936b4acbd92 140 * Fixed a macro problem with txIsBusy()
AjK 2:b936b4acbd92 141 * Started adding code to use "block data" sending using DMA
AjK 3:0f10f536456e 142 * Removed #include "IOMACROS.h"
AjK 1:b7e435fbfe8e 143
AjK 2:b936b4acbd92 144 1.2 - 21/11/2010
AjK 2:b936b4acbd92 145
AjK 2:b936b4acbd92 146 * Removed unsed variables from flushBuffer()
AjK 2:b936b4acbd92 147 * Fixed a bug where both RX AND TX fifos are cleared/reset
AjK 2:b936b4acbd92 148 when just TX OR RX should be cleared.
AjK 2:b936b4acbd92 149 * Fixed a bug that cleared IIR when in fact it should be left
AjK 2:b936b4acbd92 150 alone so that any pending interrupt after flush is handled.
AjK 2:b936b4acbd92 151 * Merged setBase() into init() as it wasn't required anywhere else.
AjK 2:b936b4acbd92 152 * Changed init() to enforce _uidx is set by Serial to define the _base
AjK 2:b936b4acbd92 153 address of the Uart in use.
AjK 2:b936b4acbd92 154
AjK 1:b7e435fbfe8e 155 1.1 - 20/11/2010
AjK 1:b7e435fbfe8e 156
AjK 1:b7e435fbfe8e 157 * Added this file
AjK 1:b7e435fbfe8e 158 * Removed cruft from GETC.cpp
AjK 1:b7e435fbfe8e 159 * "teh" should be "the", why do my fingers do that?
AjK 1:b7e435fbfe8e 160
AjK 1:b7e435fbfe8e 161 1.0 - 20/11/2010
AjK 1:b7e435fbfe8e 162
AjK 1:b7e435fbfe8e 163 * First release.
AjK 1:b7e435fbfe8e 164
AjK 1:b7e435fbfe8e 165 */