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Author SHA1 Message Date
Angus Gratton
e9d6e81b76 registers.h: Add i2s, SLC, RTC register headers 2015-11-20 17:56:38 +11:00
Angus Gratton
421acdc40f RTC registers: Add some notes about other register values 
Still patchy, but more towards #8.
 2015-11-20 17:49:46 +11:00
Angus Gratton
f146a3c0cd Add in-progress RTC register header (some registers still undocumented) 
Author for this work is @foogod, extracted from 1da996e (open-libmain branch).

Progress towards #8.
 2015-11-20 17:31:11 +11:00
Angus Gratton
9cf558dc5d Add SLC interrupt number 1. Closes #69 2015-11-20 17:25:15 +11:00
Alex Stewart
7dcb0aa520 Merge pull request #70 from DagAgren/master 
Add I2S and SLC register headers
 2015-11-19 12:25:30 -08:00
Dag Ågren
2b5d93baec Add static asserts and create slc.h header for descriptor struct 2015-11-19 21:14:16 +02:00
Dag Agren
fd7745cdbc Add I2S and SLC register headers 2015-11-16 00:20:16 +02:00
Angus Gratton
b5aa653b3f Makefile CPPFLAGS: Don't need FLASH_SIZE defined any more 
To determine flash size from inside a program, better to look via the
SPI flash header at this stage.
 2015-11-13 12:20:05 +11:00
Angus Gratton
92eb02f17a Simplify linker script to remove preprocessing, not check flash sizes 
Memory layout is now split into two linker scripts for OTA vs
non-OTA (different starting offsets), remaining functionality in
common.ld.

As discussed in #64, progress towards #38
 2015-11-13 12:15:01 +11:00
Angus Gratton
959849d271 Linker script: Fix IROM0_LEN calculation 
Use linker script arithmetic (yay?) to calculate flash size in bytes
from FLASH_SIZE in megabits.

Closes #64
 2015-11-13 11:25:08 +11:00
Angus Gratton
140ce14ef6 GPIO2 UART iomux values: Remove _BLINK from macro name 
This pin acts as a real TX not an activity LED as some pages suggest.
 2015-10-28 20:31:50 +11:00
Angus Gratton
301372976d iomux: Fix bug setting IOMUX_FUNC(4) 
Function masking value was incorrect
 2015-10-28 20:31:44 +11:00
Alex Stewart
783498e265 Add utils/addrsource 2015-10-27 12:14:08 -07:00
Angus Gratton
feea2e5d5f serial_echo example: Remove setbuf() call as stdout no longer buffered by default 2015-10-27 13:36:51 +11:00
Angus Gratton
04df3640ce Remove redundant symbols_norename.txt 
No longer used, and all the symbols in those lists are found in newlib
libc or our own source code now.
 2015-10-27 09:14:09 +11:00
Alex Stewart
1a48b54c99 Merge pull request #53 from SuperHouse/uart_h 
Fix issue #52.  Add esp/uart.h
 2015-10-10 22:04:53 -07:00
Angus Gratton
d61874363a http_get_mbedtls example: Remove fflush() calls as stdout is no longer line buffered 2015-10-11 09:25:51 +11:00
Angus Gratton
f3ca012b47 Disable default line-buffering of stdout 
As discussed in #52. Application can re-enable buffering on stdout with setbuf() or setbuf()
 2015-10-11 09:21:30 +11:00
Angus Gratton
a095a87409 Fix sdk_uart_rx_one_char implementation, move into sdk_compat.c 2015-10-06 23:48:28 +11:00
Angus Gratton
7efc0e3334 stdout: Bring back auto-CRLF behaviour as discussed 2015-10-06 23:24:40 +11:00
Angus Gratton
7d67bf2ede Change default baud rate back to 74906bps, compatible with boot ROM rate 
This reverts a behaviour change from 3ceadfc0a6.
 2015-10-06 23:11:17 +11:00
Angus Gratton
9c1307c5d1 Merge branch 'master' into uart_h 2015-10-06 18:37:28 +11:00
Angus Gratton
5c4cbf69cf Merge pull request #50 from SuperHouse/fix/interrupts 
Fix/interrupts
 2015-10-06 18:36:03 +11:00
Angus Gratton
afd229642a exception_vectors: Use call0 for sdk__xt_int_exit, in case it needs a literal 2015-10-06 18:25:48 +11:00
Angus Gratton
6fe0ccc7f3 exception_vectors.S: Use .Lnnn syntax for local labels, as noted by @foogod 2015-10-06 18:24:35 +11:00
Angus Gratton
7526a1fd0c app_main: Refactor to use uart.h functions instead of raw register access 
This removes the automatic insertion of CR ahead of LF by the SDK putc
function when called inside the SDK (although we'd already replaced
printf, so most were bypassing this putc function anyhow.)
 2015-10-06 18:14:05 +11:00
Angus Gratton
9e894226b7 serial_echo: Fix program name in makefile 2015-10-06 17:55:37 +11:00
Angus Gratton
07f4004e7e Add a basic serial_echo example, with a silly Easter Egg 2015-10-06 17:54:43 +11:00
Angus Gratton
325889a155 libc: newlib revision daf48a0d3 with various space-saving measures: 
* --enable-newlib-reent-small
* Compiled with -DHAVE_ABORT -DHAVE_SIGNAL
* Default fd buffer size shrunk to 128 bytes (ref #52)

Full build options:
../configure --with-newlib --enable-multilib --disable-newlib-io-c99-formats --disable-newlib-io-long-long --disable-newlib-io-float --disable-newlib-io-long-double --enable-newlib-supplied-syscalls --enable-target-optspace --program-transform-name="s&^&xtensa-lx106-elf-&" --disable-option-checking --with-target-subdir=xtensa-lx106-elf --target=xtensa-lx106-elf --prefix=/home/gus/dev/esp/rtos/open-rtos/libc/ --enable-newlib-nano-malloc --enable-newlib-nano-formatted-io --enable-newlib-reent-small
CROSS_CFLAGS="-DSIGNAL_PROVIDED -DABORT_PROVIDED" make
 2015-10-06 17:49:00 +11:00
Angus Gratton
25d3c54c5b uart.h: Add uart_get_baud/uart_set_baud functions, change default baud rate from 74906 to 115200 2015-10-06 17:49:00 +11:00
Alex Stewart
14a05facda Fix issue #52. Add esp/uart.h 2015-10-05 21:51:57 -07:00
Angus Gratton
50f8b3d338 core headers: Add C++ linker compatibility 2015-10-05 18:33:32 +11:00
Angus Gratton
cc199eb095 NMI Handler: Save 512 bytes of RAM via NMI stack space. Add stack overflow detection. 2015-09-29 17:33:15 +10:00
Angus Gratton
cc20f8efca NMIExceptionHandler: Don't save callee-saved registers, fix stack alignment 
NMI routine sdk_wDev_ProcessFiq seems to be written in C, meets ABI
calling conventions for callee-saved registers. Not sure why SDK
handlers saved them.

NMI handler now also meets the ABI requirement that stack is 16 byte
aligned (doesn't seem strictly necessary, but can't hurt.)
 2015-09-29 15:05:57 +10:00
Angus Gratton
3d7fa49083 NMIExceptionHandler: Clean up, refactor to use excsave3 for stack pointer 2015-09-29 14:37:33 +10:00
Angus Gratton
c0c775e77d Add assembly code style to README & emacs dir-locals 2015-09-29 14:33:18 +10:00
Angus Gratton
23ea182e83 Simplify interrupt and RTOS timer tick handlers 
RTOS Timer tick handler is now the same as any other ISR.

This causes a few subtle behaviour changes that seem OK but are worth noting:

* RTOS tick handler sdk__xt_timer_int() is now called from one stack
  frame deeper (inside _xt_isr_handler()), whereas before it was called
  from the level above in UserHandleInterrupt. I can't see any way that
  the extra ~40 bytes of stack use here hurt, though.

* sdk__xt_timer_int() was previous called after all other interrupts
  flagged in the handler, now it's called before the TIMER FRC1 & FRC2
  handlers. The tick handler doesn't appear to do anything particularly
  timing intensive, though.

* GPIO interrupt (value 3) is now lower priority than the SPI
  interrupt (value 2), whereas before it would have been called before
  SPI if both interrupts triggered at once.
 2015-09-29 13:21:04 +10:00
Angus Gratton
9f7a5a7fdd Consolidate interrupt management in core as esp/interrupts.h & esp_interrupts.c 2015-09-28 22:15:40 +10:00
Angus Gratton
606db46a89 Merge branch 'feature/mbedtls' 2015-09-28 13:29:38 +10:00
Angus Gratton
9f59dca90b Update README regarding mbedTLS 2015-09-28 13:09:07 +10:00
Angus Gratton
e8a60268c5 Remove axTLS 2015-09-28 13:01:22 +10:00
Angus Gratton
5088e7e64b hmac_test_vectors test: Replace axTLS with mbedTLS 2015-09-28 13:01:22 +10:00
Angus Gratton
4a3509d852 Add link to IRC channel 2015-09-25 18:26:57 +10:00
Angus Gratton
7ad7c1f5ad Remove extraneous extras/ subdirs - all merged into cpp_support now 2015-09-25 18:26:51 +10:00
Angus Gratton
8e5221b894 Merge branch 'experiments/unaligned_load' into feature/mbedtls_notworking 2015-09-25 16:57:49 +10:00
Alex Stewart
ad7217404b Code reformat/cleanup of exception_vectors.S 2015-09-24 22:43:29 -07:00
Alex Stewart
4ea9382ee6 Fix bad memory access in NMI handler 
CallNMIExceptionHandler was saving/restoring registers to the wrong offsets,
causing it to potentially corrupt the first two slots of the
LoadStoreErrorHandler's save area.
 2015-09-24 20:12:14 -07:00
Angus Gratton
3ceb07b9db unaligned_load: Run some tests after scheduler/network/wifi all up and running 
As written this doesn't expose any new bugs.
 2015-09-25 09:41:53 +10:00
Angus Gratton
2f412bbcfd unaligned_load tests: Remove incorrect references to DoubleException 2015-09-25 09:22:06 +10:00
Angus Gratton
8f7f246a36 Refactor Hardware RNG functions to esp/hwrand.h 
As suggested by @foogod, thanks!
 2015-09-24 20:48:16 +10:00