Adhithya Rajasekaran / MODSERIAL

Bug fix release

Dependents:   esp8266test

Fork of MODSERIAL by Andy K

ChangeLog.c@12:8c7394e2ae7f, 2011-01-20 (annotated)

Committer:
AjK
Date:
Thu Jan 20 11:57:32 2011 +0000
Revision:
12:8c7394e2ae7f
Parent:
11:a93a62eeeb9d
Child:
13:70bb7c1769fa
1.12 See ChangeLog

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 1:b7e435fbfe8e 1 /* $Id:$
AjK 2:b936b4acbd92 2
AjK 12:8c7394e2ae7f 3 1.12 - 20/01/2011
AjK 12:8c7394e2ae7f 4
AjK 12:8c7394e2ae7f 5 * Added new "autoDetectChar()" function. To use:-
AjK 12:8c7394e2ae7f 6 1st: Add a callback to invoke when the char is detected:-
AjK 12:8c7394e2ae7f 7 .attach(&detectedChar, MODSERIAL::RxAutoDetect);
AjK 12:8c7394e2ae7f 8 2nd: Send the char to detect.
AjK 12:8c7394e2ae7f 9 .autoDectectChar('\n');
AjK 12:8c7394e2ae7f 10 Whenever that char goes into the RX buffer your callback will be invoked.
AjK 12:8c7394e2ae7f 11 Added example2.cpp to demo a simple messaging system using this auto feature.
AjK 12:8c7394e2ae7f 12
AjK 12:8c7394e2ae7f 13
AjK 11:a93a62eeeb9d 14 1.11 - 23/11/2010
AjK 11:a93a62eeeb9d 15
AjK 11:a93a62eeeb9d 16 * Fixed a minor issue with 1.10 missed an alteration of name change.
AjK 11:a93a62eeeb9d 17
AjK 10:725fe81aa9ff 18 1.10 - 23/11/2010
AjK 10:725fe81aa9ff 19
AjK 10:725fe81aa9ff 20 * Reanme the DMA callback from attach_dma_complete() to attach_dmaSendComplete()
AjK 10:725fe81aa9ff 21
AjK 9:b3cdae80e7a9 22 1.9 - 23/11/2010
AjK 9:b3cdae80e7a9 23
AjK 9:b3cdae80e7a9 24 * Added support for DMA sending of characters. Required is
AjK 9:b3cdae80e7a9 25 the MODDMA library module:-
AjK 9:b3cdae80e7a9 26 http://mbed.org/users/AjK/libraries/MODDMA/latest
AjK 9:b3cdae80e7a9 27 See example_dma.cpp for more information.
AjK 9:b3cdae80e7a9 28
AjK 8:775f860e94d3 29 1.8 - 22/11/2010
AjK 8:775f860e94d3 30
AjK 8:775f860e94d3 31 * Added code so that if a buffer is set to zero length then
AjK 8:775f860e94d3 32 MODSERIAL defaults to just using the FIFO for that stream
AjK 8:775f860e94d3 33 thus making the library "fall back" to teh same operation
AjK 8:775f860e94d3 34 that the Mbed Serial library performs.
AjK 8:775f860e94d3 35 * Removed dmaSend() function that should have been removed
AjK 8:775f860e94d3 36 at 1.7
AjK 8:775f860e94d3 37
AjK 7:ffa4a7cb7f8d 38 1.7 - 21/11/2010
AjK 7:ffa4a7cb7f8d 39
AjK 7:ffa4a7cb7f8d 40 * Remove the DMA enum from MODSERIAL.h as it's not currently
AjK 7:ffa4a7cb7f8d 41 ready for release.
AjK 7:ffa4a7cb7f8d 42 * Added page doxygen comments.
AjK 7:ffa4a7cb7f8d 43
AjK 6:c8f77fe1cc10 44 1.6 - 21/11/2010
AjK 6:c8f77fe1cc10 45
AjK 6:c8f77fe1cc10 46 * Version 1.5 solved a blocking problem on putc() when called
AjK 6:c8f77fe1cc10 47 from another ISR. However, isr_tx() invokes a callback of it's
AjK 6:c8f77fe1cc10 48 own when a byte is tranferred from TX buffer to TX FIFO. User
AjK 6:c8f77fe1cc10 49 programs may interpret that as an IRQ callback. That's an ISR
AjK 6:c8f77fe1cc10 50 call from within an existing ISR which is not good. So the
AjK 6:c8f77fe1cc10 51 TxIrq callback from isr_tx is now conditional. It will only
AjK 6:c8f77fe1cc10 52 be called when isr_tx() is actually within it's own ISR and
AjK 6:c8f77fe1cc10 53 not when called from alternate ISR handlers.
AjK 6:c8f77fe1cc10 54
AjK 5:8365c4cf8f33 55 1.5 - 21/11/2010
AjK 5:8365c4cf8f33 56
AjK 5:8365c4cf8f33 57 * Calling putc() (or any derived function that uses it like
AjK 5:8365c4cf8f33 58 printf()) while inside an interrupt service routine can
AjK 5:8365c4cf8f33 59 cause the system to lock up if the TX buffer is full. This
AjK 5:8365c4cf8f33 60 is because bytes are only transferred from the TX buffer to
AjK 5:8365c4cf8f33 61 the TX FIFO via the TX ISR. If we are, say in an RX ISR already,
AjK 5:8365c4cf8f33 62 then the TX ISR will never trigger. The TX buffer stays full and
AjK 5:8365c4cf8f33 63 there is never space to putc() the byte. So, while putc() blocks
AjK 5:8365c4cf8f33 64 waiting for space it calls isr_tx() to ensure if TX FIFO space
AjK 5:8365c4cf8f33 65 becomes available it will move bytes from the TX buffer to TX
AjK 5:8365c4cf8f33 66 FIFO thus removing the blocking condition within putc().
AjK 5:8365c4cf8f33 67
AjK 4:28de979b77cf 68 1.4 - 21/11/2010
AjK 4:28de979b77cf 69
AjK 4:28de979b77cf 70 * Removed all the new DMA code. I wish mbed.org had proper SVN
AjK 4:28de979b77cf 71 versioning, I'm use to working in HEAD and BRANCHES after I've
AjK 4:28de979b77cf 72 released a project. Getting bug reports in current releases
AjK 4:28de979b77cf 73 while trying to dev new code is hard to manage without source
AjK 4:28de979b77cf 74 control of some type!
AjK 4:28de979b77cf 75
AjK 2:b936b4acbd92 76 1.3 - 21/11/2010
AjK 2:b936b4acbd92 77
AjK 2:b936b4acbd92 78 * Fixed a macro problem with txIsBusy()
AjK 2:b936b4acbd92 79 * Started adding code to use "block data" sending using DMA
AjK 3:0f10f536456e 80 * Removed #include "IOMACROS.h"
AjK 1:b7e435fbfe8e 81
AjK 2:b936b4acbd92 82 1.2 - 21/11/2010
AjK 2:b936b4acbd92 83
AjK 2:b936b4acbd92 84 * Removed unsed variables from flushBuffer()
AjK 2:b936b4acbd92 85 * Fixed a bug where both RX AND TX fifos are cleared/reset
AjK 2:b936b4acbd92 86 when just TX OR RX should be cleared.
AjK 2:b936b4acbd92 87 * Fixed a bug that cleared IIR when in fact it should be left
AjK 2:b936b4acbd92 88 alone so that any pending interrupt after flush is handled.
AjK 2:b936b4acbd92 89 * Merged setBase() into init() as it wasn't required anywhere else.
AjK 2:b936b4acbd92 90 * Changed init() to enforce _uidx is set by Serial to define the _base
AjK 2:b936b4acbd92 91 address of the Uart in use.
AjK 2:b936b4acbd92 92
AjK 1:b7e435fbfe8e 93 1.1 - 20/11/2010
AjK 1:b7e435fbfe8e 94
AjK 1:b7e435fbfe8e 95 * Added this file
AjK 1:b7e435fbfe8e 96 * Removed cruft from GETC.cpp
AjK 1:b7e435fbfe8e 97 * "teh" should be "the", why do my fingers do that?
AjK 1:b7e435fbfe8e 98
AjK 1:b7e435fbfe8e 99 1.0 - 20/11/2010
AjK 1:b7e435fbfe8e 100
AjK 1:b7e435fbfe8e 101 * First release.
AjK 1:b7e435fbfe8e 102
AjK 1:b7e435fbfe8e 103 */