j3d1/esp-open-rtos
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241 commits

Author SHA1 Message Date
Alex Stewart
1ebb85b150 rename GPIO_CONF_DRIVER_ENABLE back to GPIO_CONF_PUSH_PULL 2015-08-21 09:54:20 -07:00
Alex Stewart
8263fce80f Fix leftover IOMUX_FUNC_A/D references 2015-08-19 16:53:02 -07:00
Alex Stewart
d2231b7ff5 Cleanup a few comments in *_regs.h files 2015-08-19 16:50:56 -07:00
Alex Stewart
177ad281aa Add esp/wdt_regs.h 2015-08-19 16:48:11 -07:00
Alex Stewart
4fa66ca391 Added esp/timer_regs.h and esp/dport_regs.h 2015-08-19 11:34:18 -07:00
Alex Stewart
b271e19b51 Replace stdint.h with esp/types.h in gpio_regs.h 2015-08-19 09:05:03 -07:00
Alex Stewart
b84a69168f Fix cut-paste error in gpio_regs.h comment 2015-08-19 09:03:18 -07:00
Alex Stewart
fc1a1a7d0a Add esp/gpio_regs.h 2015-08-18 22:46:25 -07:00
Alex Stewart
2ffd3da71e Add esp/iomux_regs.h 2015-08-18 17:38:31 -07:00
Angus Gratton
7d480876fa Add basic C++ new/delete operators, as contributed by @mikejac in #24 2015-08-13 08:33:07 +10:00
Angus Gratton
7f338e66cb Unaligned load: Remove debugging variables 2015-08-11 16:25:35 +10:00
Angus Gratton
e3b24df043 Unaligned load: Shave a few more instructions off 2015-08-11 16:25:11 +10:00
Angus Gratton
3b3f5ea771 Unaligned loads: Only save working registers, use jump table to load non-working registers 2015-08-11 15:29:53 +10:00
Angus Gratton
8ea4ae27e2 Unaligned loader: Support l16si 2015-08-11 15:03:53 +10:00
Angus Gratton
773a046dc3 Unaligned loader: clean up, reduce number of registers 2015-08-11 14:23:41 +10:00
Angus Gratton
424dc0f3b0 Add C++ support to Makefile, and proof-of-concept simple.cpp example 
This is a work in progress based on @mikejac's work.

Missing:
* No 'new' operator.
* I don't think STL is currently supported.
 2015-08-10 16:14:30 +10:00
Michael Jacobsen
da6b5f74bb Mostly updated header files for use in C++ 2015-08-10 15:31:03 +10:00
Angus Gratton
bfd38cd1e2 Experimental support for storing const strings in SPI flash or IRAM 
As discussed in #11

Known limitations:
- Only supports l8ui/l16ui
- Unoptimised load routine
- Not called from DoubleExceptionHandler but should be
- Doesn't restore state properly when falling through to fatal exception handler
 2015-08-10 12:03:03 +10:00
Angus Gratton
d685581829 Syscall hander: Fix a3 save address 
(SDK doesn't use syscall exception so bug probably never hit?)
 2015-08-10 11:54:30 +10:00
Johan Kanflo
64a1e5598b Correct prototype for sdk_uart_rx_one_char, kudos to @foogod 2015-08-07 13:26:06 +02:00
Angus Gratton
bed6907d22 Exception vector address must be 256 byte aligned 
Not actually a problem with the current linker script as the address is
predetermined there at start of IRAM, but might as well be accurate
about it.

As per advice from @foogod on esp8266-re mailing list:
https://groups.google.com/d/msg/esp8266-re/1ljIY3Zttbo/HvzHSWOLCgAJ
 2015-08-06 09:54:46 +10:00
Angus Gratton
19b8383069 Working TFTP server based OTA updates 
Tested with 16MBit flash configuration, two rboot update slots.

Closes #10
 2015-08-05 14:10:14 +10:00
Angus Gratton
aed843fc14 exception_vectors: Remove some cruft some the symbol table 2015-07-30 10:10:37 +10:00
Angus Gratton
efc454035c Move all code paths touched by NMI to IRAM 
Prerequisite for calling Cache_Read_Disable() for OTA updates.

Massive thanks due to @foogod and their xtobjdis tool, creating the call
graph of where the wDev_ProcessFiq touched (including in newlib, etc.)
would have otherwise been very painful:
https://bitbucket.org/foogod/xtobjdis
 2015-07-29 16:47:33 +10:00
Angus Gratton
28fdebee92 gpio: Change gpio_write argument to bool 2015-07-29 10:35:15 +10:00
Angus Gratton
265cef7e00 Add some LED debugging assembler macros 
Not used directly in esp-open-rtos but useful to keep around.
 2015-07-28 11:19:01 +10:00
Angus Gratton
ed7ba52c9a Add exception vectors & low-level handlers 
At the moment these are almost bit-for-bit copies of the vector
behaviour in the RTOS SDK, but hopefully that will start to change.

Progress towards #2
 2015-07-28 11:01:57 +10:00
Angus Gratton
86188c01fd Merge branch 'newlib' 2015-07-15 16:01:18 +10:00
Angus Gratton
1d72ed3f70 Hardware timer support 2015-07-09 12:29:40 +10:00
Angus Gratton
2c1b1ab141 Minor core header cleanups 2015-06-18 09:04:45 +10:00
Angus Gratton
b7b16de429 Alias ets_printf directly to printf at link time 
I thought maybe ets_printf had some special properties, but it doesn't
seem to have any so far.
 2015-06-16 16:22:55 +10:00
Angus Gratton
aaef4b0644 Replace all binary SDK libc functions with newlib 
Adds a new build step to remove the SDK object files listed in
<libname>.remove.

Closes #1.
 2015-06-16 14:21:24 +10:00
Angus Gratton
49268a33e1 Link against newlib from esp-open-sdk's libcirom, replace FreeRTOS heap management. 
Compiles and runs, expects xtensa lock.c patch in newlib (will still run
otherwise but malloc/free and other functions will be non-memory-safe...)
 2015-06-16 14:20:24 +10:00
Angus Gratton
1b0124cf05 Timer FRC1 & FRC2 registers 
Mostly determined from reverse engineering and poking around.

Includes first "experiments" program with random bits and pieces for
poking at registers, may be useful to keep in source control but not
useful for writing actual programs.
 2015-06-12 17:05:54 +10:00
Angus Gratton
c09167715e Indentation fixes 
- Fix dir-locals so emacs won't inject occasional tabs to case statements.
- Fix stray tab indentation in example programs. (Thx @pfalcon for pointing this out)
 2015-06-09 09:00:32 +10:00
Angus Gratton
a59b1565e4 Better comments on esp_gpio_interrupts.c 2015-06-08 18:33:56 +10:00
Angus Gratton
0078252df3 Add GPIO config, interrupt registers, GPIO interrupt support, 'button' example 2015-06-08 18:20:29 +10:00
Angus Gratton
822533fd92 Interrupt support refactor 
Write inline versions for SDK-based interrupt convenience functions.
 2015-06-08 18:20:29 +10:00
Angus Gratton
0dbb6d31a5 Add IRAM attribute for IRAM loaded symbols, add to common FreeRTOS functions 
Closes #7.

It'd be nice to change the linker script so .text is always linked to
IROM instead of needing to objcopy each compiled file. The sticking
point for this is libgcc & libhal, which have symbols in .text that need
to be loaded to IRAM.
 2015-06-08 18:19:59 +10:00
Angus Gratton
a476fb007e Fix IROM macro 2015-06-08 17:58:10 +10:00
Angus Gratton
2c46be9825 Basic support for GPIOs 0-15. 
Start new 'core' component for low-level parts

Progress towards #8
 2015-06-08 12:09:34 +10:00