380 Commits (971dfcf0e131e6afb6840a26bb95f92fd1e64ec2)

Author	SHA1	Message	Date
Bogdan Marinescu	53cd64775d	Hardware flow control implementation for LPC81X	2013-12-05 17:33:16 +02:00
Bogdan Marinescu	2ac6c4c531	Fixed RTS/CTS bit-banging on LPC1768	2013-12-04 19:46:12 +02:00
Bogdan Marinescu	fbeb52d613	Added RTS/CTS flow control ... Currently implemented only for LPC1768. On this platform, when hardware flow control is not directly supported, it will be emulated. Also added "not_implemented.c" as a placeholder for various HAL functions that might not be implemented on all platforms (in this particular case, serial_set_flow_control). These are weak implementations that default to a "not implemented" error message.	2013-12-04 19:42:11 +02:00
bcostm	0aa8b93e26	NUCLEO_F103RB: Add I2C master api	2013-12-04 11:17:10 +01:00
Bogdan Marinescu	3f82e7fa6f	Use correct scatter file for LPC4088	2013-12-03 11:04:37 +02:00
Bogdan Marinescu	49df530ae7	Merge pull request #118 from bcostm/master ... Add STMicroelectronics NUCLEO_F103RB target	2013-12-02 03:15:58 -08:00
Bogdan Marinescu	6aaa134516	Merge pull request #117 from Sissors/master ... Added (deep)sleep to KL25Z	2013-12-02 01:55:33 -08:00
bcostm	3bcf77e4f7	NUCLEO_F103RB: minor changes	2013-12-02 09:22:28 +01:00
Sissors	9f89a4d218	Added (deep)sleep to KL25Z ... Sleep is wait mode Deepsleep is very low power stop mode During the interrupt that removes it from deepsleep it will run at low speed until the PLL is automatically re-enabled after the interrupt.	2013-11-30 19:28:00 +01:00
0xc0170	d8d526f656	Merge branch 'master' into K20D50	2013-11-28 17:24:57 +01:00
Michael Moon	a249e39826	Improved baudrate calculation function. ... Uses 100% integer math, delivers more accurate results with fewer iterations in less time. Since it seems most of the NXP chips use identical math, I have also altered the other targets in this commit. If there are non-NXP chips which use a similar serial block, consider porting to those as well Comparison: BAUD DL MUL DIV CPU_CLOCK ------- --- --- --- ---------- new: { 9600, 625, 1, 0, 96000000}, // Actual baud: 9600, error =0.00%, 1 iterations old: { 9600, 625, 1, 0, 96000000}, // Actual baud: 9600, error =0.00%, 0 iterations new: { 38400, 125, 4, 1, 96000000}, // Actual baud: 38400, error =0.00%, 8 iterations old: { 38400, 81, 14, 13, 96000000}, // Actual baud: 38409, error +0.02%, 420 iterations new: { 57600, 81, 7, 2, 96000000}, // Actual baud: 57613, error +0.02%, 120 iterations old: { 57600, 54, 14, 13, 96000000}, // Actual baud: 57613, error +0.02%, 315 iterations new: { 115200, 27, 14, 13, 96000000}, // Actual baud: 115226, error +0.02%, 120 iterations old: { 115200, 27, 14, 13, 96000000}, // Actual baud: 115226, error +0.02%, 210 iterations new: { 230400, 23, 15, 2, 96000000}, // Actual baud: 230179, error -0.10%, 120 iterations old: { 230400, 17, 15, 8, 96000000}, // Actual baud: 230179, error -0.10%, 525 iterations new: { 250000, 24, 1, 0, 96000000}, // Actual baud: 250000, error =0.00%, 1 iterations old: { 250000, 24, 1, 0, 96000000}, // Actual baud: 250000, error =0.00%, 0 iterations new: {1000000, 6, 1, 0, 96000000}, // Actual baud: 1000000, error =0.00%, 1 iterations old: {1000000, 6, 1, 0, 96000000}, // Actual baud: 1000000, error =0.00%, 0 iterations new: {2000000, 3, 1, 0, 96000000}, // Actual baud: 2000000, error =0.00%, 1 iterations old: {2000000, 3, 1, 0, 96000000}, // Actual baud: 2000000, error =0.00%, 0 iterations new: { 9600, 514, 15, 4, 100000000}, // Actual baud: 9600, error =0.00%, 110 iterations old: { 9600, 337, 15, 14, 100000000}, // Actual baud: 9593, error -0.07%, 1365 iterations new: { 38400, 93, 4, 3, 100000000}, // Actual baud: 38402, error +0.01%, 120 iterations old: { 38400, 85, 12, 11, 100000000}, // Actual baud: 38363, error -0.10%, 525 iterations new: { 57600, 62, 4, 3, 100000000}, // Actual baud: 57604, error +0.01%, 120 iterations old: { 57600, 61, 9, 7, 100000000}, // Actual baud: 57633, error +0.06%, 840 iterations new: { 115200, 31, 4, 3, 100000000}, // Actual baud: 115207, error +0.01%, 120 iterations old: { 115200, 31, 4, 3, 100000000}, // Actual baud: 115207, error +0.01%, 525 iterations new: { 230400, 19, 7, 3, 100000000}, // Actual baud: 230263, error -0.06%, 120 iterations old: { 230400, 19, 7, 3, 100000000}, // Actual baud: 230263, error -0.06%, 735 iterations new: { 250000, 25, 1, 0, 100000000}, // Actual baud: 250000, error =0.00%, 1 iterations old: { 250000, 25, 1, 0, 100000000}, // Actual baud: 250000, error =0.00%, 0 iterations new: {1000000, 5, 4, 1, 100000000}, // Actual baud: 1000000, error =0.00%, 8 iterations old: {1000000, 5, 4, 1, 100000000}, // Actual baud: 1000000, error =0.00%, 315 iterations new: {2000000, 2, 9, 5, 100000000}, // Actual baud: 2008929, error +0.45%, 120 iterations old: {2000000, 2, 9, 5, 100000000}, // Actual baud: 2008929, error +0.45%, 315 iterations new: { 9600, 625, 4, 1, 120000000}, // Actual baud: 9600, error =0.00%, 8 iterations old: { 9600, 404, 15, 14, 120000000}, // Actual baud: 9602, error +0.02%, 1575 iterations new: { 38400, 179, 11, 1, 120000000}, // Actual baud: 38408, error +0.02%, 120 iterations old: { 38400, 101, 15, 14, 120000000}, // Actual baud: 38409, error +0.02%, 525 iterations new: { 57600, 93, 5, 2, 120000000}, // Actual baud: 57604, error +0.01%, 120 iterations old: { 57600, 68, 12, 11, 120000000}, // Actual baud: 57545, error -0.10%, 420 iterations new: { 115200, 47, 13, 5, 120000000}, // Actual baud: 115248, error +0.04%, 120 iterations old: { 115200, 34, 12, 11, 120000000}, // Actual baud: 115090, error -0.10%, 315 iterations new: { 230400, 19, 7, 5, 120000000}, // Actual baud: 230263, error -0.06%, 120 iterations old: { 230400, 17, 12, 11, 120000000}, // Actual baud: 230179, error -0.10%, 210 iterations new: { 250000, 30, 1, 0, 120000000}, // Actual baud: 250000, error =0.00%, 1 iterations old: { 250000, 30, 1, 0, 120000000}, // Actual baud: 250000, error =0.00%, 0 iterations new: {1000000, 5, 2, 1, 120000000}, // Actual baud: 1000000, error =0.00%, 3 iterations old: {1000000, 4, 8, 7, 120000000}, // Actual baud: 1000000, error =0.00%, 210 iterations new: {2000000, 3, 4, 1, 120000000}, // Actual baud: 2000000, error =0.00%, 8 iterations old: {2000000, 2, 8, 7, 120000000}, // Actual baud: 2000000, error =0.00%, 210 iterations	2013-11-29 02:44:14 +11:00
0xc0170	c5a2e6ed0e	pwm, spi - pin definition, dac removed	2013-11-27 18:46:30 +01:00
bcostm	1159845529	NUCLEO_F103RB: update channels management in analogin api	2013-11-27 15:39:57 +01:00
0xc0170	0e99a7c9bd	Analog API - pins, analog pins (arduino) correction, irq ... - ADC - pins, mux - analog pins - Ax - irq - port A - E	2013-11-26 20:08:13 +01:00
Bogdan Marinescu	256f70fffc	Merge remote-tracking branch 'origin/master'	2013-11-26 17:14:46 +02:00
Bogdan Marinescu	3c0a8b633f	Provide generic pinout defines ... This commit adds generic peripheral names to various mbed enabled boards, to make it easier to write portable code amongst various mbed boards.	2013-11-26 17:12:36 +02:00
bcostm	dd292a7e71	NUCLEO_F103RB: Add pwmout api + change timers for ticker	2013-11-26 09:26:08 +01:00
bcostm	c33dbfd63d	Enable STDIO messages used by the test firmwares	2013-11-25 10:20:39 +01:00
0xc0170	3dc97b20c0	startup ARM - stack pointer, serial functional ... - stack pointer correction - startup for ARM - clean up - GCC ARM linker - RAM size correction - NVIC - RAM address	2013-11-22 21:21:01 +01:00
bcostm	c47bc1780a	Add UseMicroLIB option for exported project	2013-11-22 11:41:07 +01:00
Bogdan Marinescu	f6c9c8db5e	Fixed initial SP value	2013-11-21 19:07:52 +02:00
Emilio Monti	64952d4f7e	Merge pull request #114 from mazgch/master ... Avoid hardfault when CAN object is destructed.	2013-11-21 08:40:43 -08:00
mazgch	a3a16b3683	Avoid hardfault when CAN object is destructed. ... interrupts have to be disabled(can_irq_free) before we turn off(can_free) the peripheral	2013-11-21 17:31:17 +01:00
Emilio Monti	5278dd43f2	Merge pull request #113 from mazgch/master ... fix the documentation to ethernet api to match implementation	2013-11-21 02:32:05 -08:00
mazgch	2b7d2bb343	fix the documentation to match implementation	2013-11-21 11:24:58 +01:00
Emilio Monti	6a5335a40e	Merge pull request #112 from Sissors/master ... Added sleep to LPC81x	2013-11-21 01:58:28 -08:00
Sissors	585e05ca6a	Added sleep to LPC81x ... http://mbed.org/users/mbed_official/code/mbed-src/pull-request/6	2013-11-21 08:19:44 +01:00
hototogi	03b79b5920	support GCC_ARM for LPC4330_M4 ... - Linker script is based on LPC1768 number of NVIC is 16 (CORE) + 53 (M4 in LPC43xx) = 69, therefor, reserve at the top of RAM0 (address:0x10000000) to relocate NVIC vector table - startup file is based on startup_ARMCM4.S in CMSIS V3.20 change NVIC name for cortex-M4 of LPC43xx - add GCC_ARM for LPC4330_M4 in python scripts - add some descriptions for GCC_ARM	2013-11-20 17:03:59 +09:00
0xc0170	4e09b52a71	K20 uVision files, ld NVIC offset ... - K20 KEIL files - clock set to 1 (48MHz) - offset in GCC ld for vectors in RAM - us ticker - PIT timer interrupt implementation	2013-11-19 20:06:26 +01:00
bcostm	415ac34b56	Add analogin, serial and spi support for NUCLEO_F103RB	2013-11-19 09:11:31 +01:00
0xc0170	8ca8014c00	Merge branch 'master' into K20D50	2013-11-18 20:34:45 +01:00
bcostm	70dd0d891e	Add STM32F10x standard periph driver	2013-11-14 11:33:29 +01:00
bcostm	6d9b523185	Update workspace_tools files	2013-11-14 11:07:01 +01:00
bcostm	beb779b3d6	Rename target	2013-11-13 09:29:29 +01:00
Bogdan Marinescu	5b6faea448	Removed redundant label TARGET_LPC81X_COMMON	2013-11-11 13:28:18 +02:00
Joris Aerts	76ffc4935e	Fix bug in gpio_set not setting reserved pins correctly ... Loop going over reserved pins was not going over all entries as result of incorrect sizeof	2013-11-08 13:39:00 -08:00
bcostm	b8ddfce3d0	Change folder name to TARGET_NUCLEO-F103RB	2013-11-08 11:19:09 +01:00
bcostm	96a96f2cb6	Add STM32F10X cmsis files	2013-11-07 14:16:01 +01:00
bcostm	c0d5675480	Add STM NUCLEO64 STM32F10X basic files	2013-11-07 11:32:01 +01:00
0xc0170	f4591dbbab	Merge branch 'upstream_master' into dev_kl46z	2013-11-05 22:08:07 +01:00
Andreas Rebert	09cf4ef128	Support for exporting to GCC_ARM	2013-10-31 13:28:05 +01:00
pbrier	b1d88905a9	fixed can_filter() prototype (prevents build of LPC1768)	2013-10-26 17:02:29 +02:00
Emilio Monti	317a1f66d2	Merge pull request #91 from jorisa/master ... Add CAN api filter support and LPC11CXX CAN implementation	2013-10-25 06:58:05 -07:00
Bogdan Marinescu	9d881770c9	Merge remote-tracking branch 'github/master'	2013-10-25 15:43:01 +03:00
Adam Green	969733ae8f	serial_putc() to make better use of Tx FIFO ... If don't know if this is an issue that anyone cares about. I am also not sure what the best way to solve it is either. I just thought I would issue a pull request with this commit to bring the issue to light and show a possible solution that I have tested on my mbed-1768 device. Previously the serial_putc() API didn't make any use of the Tx FIFO since the serial_writable() API it utilizes only returns true when the FIFO is completely empty. This is due to the fact that the THRE bit of the UART's LSR (Line Status Register) only goes high when the whole FIFO is empty. I noticed this when doing some performance testing with the network stack. I went from calling printf() to output 3 bytes every 10 seconds (with packet drop stats) to instead output 4 bytes every 10 seconds. I thought these should easily fit in the 16 byte FIFO but outputting one extra byte caused an additional three 550 byte UDP packets to be dropped. This should only happen if the additional character being sent to the UART was taking away extra CPU cycles from the network stack. My solution is to keep track of the number of bytes that have been placed in the Tx FIFO since it was last detected as being completely empty (via the THRE bit). Only once this count hits 16 does the code then block, waiting for the THRE bit to go high. Each time the THRE bit does go high, the count is reset to 0 again and it is incremented for each byte that is loaded into the THR.	2013-10-25 15:17:06 +03:00
Joe Turner	6ae1e9e360	Merge branch 'master' of git://github.com/mbedmicro/mbed into bugfix-STM32-vectors	2013-10-25 13:11:25 +01:00
Joe Turner	0ef4905728	Fix relocation of vector on STM32.	2013-10-25 13:09:06 +01:00
Bogdan Marinescu	544ac9e728	Disable DEVICE_STDIO_MESSAGES for LPC81X ... Because the LPC81X HAL implementation calls error(), which in turn calls fprintf(), quite a bit of code is added to the image, which is not a good idea on such resource constrained targets.	2013-10-25 14:51:01 +03:00
Bogdan Marinescu	5742abe6d9	Added the new RawSerial.h in mbed.h	2013-10-23 17:28:05 +03:00
Bogdan Marinescu	2404dc0092	Added new serial class, remove interrupt chaining ... The new RawSerial class is a simple wrapper over the serial HAL that can be safely used from an interrupt handler. Interrupt chaining code was removed from InterruptIn, Serial and Ticker because it caused lots of issues with the RTOS. Interrupt chaining is still possible using the InterruptManager class.	2013-10-23 16:08:34 +03:00
Joris Aerts	739f2a6375	Add can_api hal implementation to LPC11CXX target ... Most of the functionality works, interrupts might need a little more work.	2013-10-22 11:02:10 -07:00
Joris Aerts	08c1483eb3	Add bitfields definition to LPC11XX target ... Generated from UM10398	2013-10-22 11:00:17 -07:00
Joris Aerts	067e446ae2	Add CAN->filter to API and add placeholders to hal's ... Add filter function and modify CAN->read definition to allow reading specific messages.	2013-10-22 10:57:28 -07:00
0xc0170	b0537af763	gpio irq enable/disable ... - InterruptIn disable_irq/enable_irq	2013-10-19 22:28:29 +02:00
0xc0170	d9ed7aba77	CMSIS KL46 files (were KL25 renamed)	2013-10-17 19:32:40 +02:00
Andreas Rebert	a0a6cbe1d3	Merge branch 'master' into lpc4088	2013-10-11 14:02:59 +02:00
Andreas Rebert	a574fd73b3	Bugfixes for I2C and port impl	2013-10-11 14:01:49 +02:00
0xc0170	122f24b83f	Update: Merge branch 'master' into freedomKL46Z ... Conflicts: workspace_tools/targets.py	2013-10-06 18:55:32 +02:00
Joris Aerts	7ed6acb08a	Move pwmout_api.c/PeripheralNames.h to LPC11XX_11CXX common ... Because CT32B1 (P1_1, P1_2 and P1_3) is used by us_ticker.c for wait and ticker function. Since wait/ticker is commonly used by mbed code and I decided CT32B1 of LPC11XX should only be used for this function, not for PwmOut. P1_6 and P1_7 are used by UART (USBTX/USBRX) and I think they should not be assigned to other function.	2013-09-30 08:11:56 -07:00
Joris Aerts	4d0c864b16	Move adc_pinmap.h to LPC11XX_11CXX common ... Merge back into analog_api.c. P1_3/ADC0_4 (SWDIO) now disabled for both targets	2013-09-30 08:07:26 -07:00
0xc0170	8df14cadc9	scatter file - 32kb RAM, startup - removed heap, stack init ... - clock set to 1 (external crystal)	2013-09-29 22:36:50 +02:00
0xc0170	5dcd8ea10e	ARM (KEIL) files for KL46Z	2013-09-29 20:40:06 +02:00
0xc0170	b83fd7fb3b	MUX corrections, Arduino Analog signals ... - added new MUX options to all drivers - removal of LED which are not there - analog arduino R3 signals were switched	2013-09-29 20:04:56 +02:00
0xc0170	2ca3195b17	NVIC offset and address in RAM correction	2013-09-29 18:53:57 +02:00
Joris Aerts	e1967755a5	Move spi_pinmap.h to LPC11XX_11CXX common ... Merge back into spi_api.c. P0_10/SPI_0 (SWCLK) now disabled for both targets	2013-09-27 19:10:08 -07:00
Joris Aerts	e9f5c8d3ca	Move README.md to LPC11XX_11CXX common	2013-09-27 18:56:11 -07:00
Joris Aerts	3fe31ad50e	Move objects.h to LPC11XX_11CXX common ... Use #if DEVICE_CAN for can_s definition	2013-09-27 18:53:19 -07:00
Bogdan Marinescu	f580c008b1	Merge pull request #78 from mconners/master ... Added KL46Z support	2013-09-25 03:18:49 -07:00
Bogdan Marinescu	8f57c1e847	Merge remote-tracking branch 'github/master'	2013-09-25 10:27:17 +01:00
Bogdan Marinescu	1e224c5152	Fix RAM size for LPC11C24 in ARM/uARM linker command files	2013-09-25 10:18:43 +01:00
Bogdan Marinescu	30907d7772	Refactor LPC1114 and LPC11C24 code ... Since most of the code for LPC1114 and LPC11C24 is similar, refactor the code structure to avoid duplication of the common code.	2013-09-25 10:17:19 +01:00
Michael Conners	5bd25ac046	Added K20D5M support	2013-09-24 10:36:04 -04:00
Michael Conners	afcc79ad27	Added KL46Z support	2013-09-24 10:01:06 -04:00
Andreas Rebert	bb35d16521	Merged bugfixes and improvments for LPC1768 target to LPC4088 target	2013-09-23 11:39:52 +02:00
Bogdan Marinescu	f2f7b213cd	Merge pull request #75 from jorisa/master ... Keep LPC11CXX in sync with LPC11XX	2013-09-20 01:53:40 -07:00
Emilio Monti	38ed9eb6a0	Merge pull request #72 from jorisa/master ... Split uVision project source files in groups mbed/hal/src	2013-09-19 01:46:53 -07:00
Bogdan Marinescu	81b372d362	Merge pull request #73 from ytsuboi/master ... Fixed LPC1114 ADC offset problem	2013-09-19 01:35:42 -07:00
Toyomasa Watarai	866858a816	Fixed LPC1114 ADC offset problem	2013-09-19 16:19:04 +09:00
Toyomasa Watarai	f4bfe5aedb	Revert "Fixed ADC offset problem" ... This reverts commit 399acd1d6f.	2013-09-19 16:16:52 +09:00
Toyomasa Watarai	399acd1d6f	Fixed ADC offset problem	2013-09-19 16:16:05 +09:00
Joris Aerts	a4badc7dd2	Keep LPC11CXX in sync with LPC11XX ... Only differences in CMSIS now are: * Top of RAM (0x10001000 vs 0x10002000) * Clock configuration (IRC/System PLL vs System Oscillator/IRC)	2013-09-18 18:54:53 -07:00
Joris Aerts	979bba6864	Don't call mbed_interface_disconnect when DEVICE_SEMIHOST is disabled	2013-09-18 14:10:29 -07:00
Joris Aerts	c275ef3b3d	Replace #ifdef with #if DEVICE_STDIO_MESSAGES ... DEVICE_STDIO_MESSAGES is the only #define in device.h that is being used in the library as #ifdef rather than #if. This is misleading since setting it to 0 will not disable including the <stdio.h> libraries.	2013-09-17 18:19:22 -07:00
Adam Green	5eb976a088	Fix _sbrk() implementation for Cortex-M parts. ... A recent commit, 43acaa4166, to get _sbrk() to build successfully for LPC2368 broke the Cortex-M implementation. __get_MSP() isn't ever defined as a macro, it is an inline function. This means that the code would always be compiled to use SP instead of MSP on Cortex-M parts. I switched the code to instead use the TARGET_ARM7 define to choose which stack pointer to utilize. I tested this fix by making sure that the LPC2368 version of the mbed SDK would still build successfully with the Python scripts and that the NET1 test still built and ran successfully on my mbed-LPC1768 device.	2013-09-17 04:29:35 -07:00
Emilio Monti	96ea3db1b3	Merge pull request #66 from dinau/lpc2368_mod ... LPC2368 mod	2013-09-16 08:00:20 -07:00
dinau	efbc52465d	LPC2368 [GCC_ARM]: Silence some warnings.	2013-09-13 22:01:21 +09:00
dinau	43acaa4166	LPC2368 [GCC_ARM]: Fixed: Compilation and link errors in case "SD" example.	2013-09-13 22:01:19 +09:00
Emilio Monti	2481fbe2a2	Merge pull request #62 from arebert/lpc4088 ... LPC4088: PIN mode fix, export to external tools and MAC address retrieval	2013-09-13 05:59:14 -07:00
Erik Olieman	94ff741989	LPC1768 InterruptIn speedup ... Use __CLZ to speed up GPIO interrupt processing.	2013-09-11 18:46:18 +03:00
Bogdan Marinescu	171dda705c	Merge pull request #63 from jorisa/master ... Fix hardfault when attaching callback to CAN2 when CAN1 is not defined	2013-09-10 03:22:55 -07:00
Joris Aerts	efd3d8d8e0	Fix hardfault when attaching callback to CAN2 when CAN1 is not defined ... Fault is triggered by trying to read LPC_CAN1->IER when the peripheral is powered off. Fixed by checking the power control register before checking the IER register.	2013-09-09 09:06:04 -07:00
Bogdan Marinescu	cfa6a1d912	Merge pull request #61 from ytsuboi/master ... Fixed problem in PWMOUT mapping table	2013-09-09 08:22:11 -07:00
Andreas Rebert	00cfdbad2a	Merge remote-tracking branch 'upstream/master' into lpc4088	2013-09-09 14:13:08 +02:00
unknown	0e36bdd457	Bugfix: PIN Modes was not set correctly ... Added: Export to uVision and Code Red toolchains	2013-09-09 14:10:11 +02:00
Bogdan Marinescu	1f243a900c	Merge remote-tracking branch 'github/master'	2013-09-09 12:31:42 +03:00
Bogdan Marinescu	fded46b459	[LPC1768] Fix serial_clear ... serial_clear() erroneously disabled the UART FIFOs. Reported by Adam Green.	2013-09-09 12:28:11 +03:00
Toyomasa Watarai	d0d2df3ce5	Fixed problem in PWMOUT mapping table ... Fixed problem in PWMOUT output issue. Startup code cean-up (correced exception names). Corrected test cases.	2013-09-09 18:15:51 +09:00
Bogdan Marinescu	d51411294f	Merge pull request #57 from adamgreen/serialTxDropsRx ... serial_putc() can cause rx bytes to be dropped	2013-09-09 01:19:29 -07:00
Joris Aerts	743e178455	Fix MASKED_ACCESS bug in gpio_init, now same as LPC11xx (Also use PIN_SHIFT instead of magic number 8 in gpio_set)	2013-09-08 18:57:40 -07:00
Adam Green	5d27f98c7b	serial_putc() can cause rx bytes to be dropped ... While fixing this issue in the various LPC* ports, I noticed a comment pointing to this mbed forum post which summarizes this bug quite well: https://mbed.org/forum/bugs-suggestions/topic/4473/ This bug was introduced in the following commit: 2662e105c4 The following code was added to serial_putc() as part of this commit: uint32_t lsr = obj->uart->LSR; lsr = lsr; uint32_t thr = obj->uart->THR; thr = thr; As the forum post indicates, this causes the serial_putc() routine to actually eat an inbound received byte if it exists since reading THR is really reading the RBR, the Receiver Buffer Register. This code looks like code that was probably added so that the developer could take a snapshot of these registers and look at them in the debugger. It probably got committed in error.	2013-09-07 00:44:44 -07:00