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* usb: Cleanups and renames.Marti Bolivar2011-10-184-24/+7
| | | | | | | | | Rename setupUSB() and disableUSB() to usb_cdcacm_enable() and usb_cdcacm_disable(), respectively. Remove usbSendHello(). This shouldn't exist. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Move some board-specific configuration to Wirish.Marti Bolivar2011-10-1810-42/+39
| | | | | | | | | Create new BOARD_USB_DISC_DEV and BOARD_USB_DISC_BIT board-specific values. Use these as arguments to setupUSB() and disableUSB(). This helps make the USB stack more generic, and goes towards the resolution of an important FIXME. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* timer.h: fix timer_oc_set_mode().Marti Bolivar2011-10-121-4/+2
| | | | | | | | | timer_oc_set_mode() incorrectly writes to CCMR1 when channel is 2; fix this. Thanks to ala42 for the fix. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* reset.py: Hackishly silence DeprecationWarning.Marti Bolivar2011-10-071-2/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usart: Add usart_rx().Marti Bolivar2011-10-072-0/+17
| | | | | usart_rx() is a nonblocking USART receive. Add it for symmetry with usart_tx().
* Cosmetics.Marti Bolivar2011-09-291-4/+4
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add support for the Olimex STM32 H103 board.David Kiliani2011-09-277-0/+230
| | | | | | | | Pin layout and header files for the STM32 H103 prototype board from Olimex featuring an STM32F103RBT6 chip. This commit contains all necessary changes to compile with BOARD=olimex_stm32_h103. Signed-off-by: David Kiliani <mail@davidkiliani.de>
* Add Windows support to DFU installation tools.Marti Bolivar2011-09-262-54/+85
| | | | | | | Tweak Makefile further for cs-make on Windows. Add Windows support to support/scripts/reset.py Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* test-fsmc.cpp: Fixup; wait for user input before running test.Marti Bolivar2011-09-261-0/+1
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* test-fsmc.cpp: Switch to SerialUSBMarti Bolivar2011-09-261-33/+28
| | | | | | | This messes with timing a little, but makes it faster to test. The timing was never perfect anyway, due to incrementing count. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* build-targets.mk: Tweak for Windows compilation.unknown2011-09-261-2/+1
| | | | | Make on Windows doesn't seem to like @echo without a string. Give it an empty one to keep it happy.
* rcc: Add RCC_USB to rcc_clk_id/rcc_dev_table.Marti Bolivar2011-09-242-0/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* nvic: Add nvic_sys_reset().Marti Bolivar2011-09-242-1/+14
| | | | | | This uses the SCB_AIRCR register to force a system reset. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* scb.h: Fix register map and bit definitions.Marti Bolivar2011-09-241-4/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the change log: This commit breaks backwards compatibility with 0.0.12. However, it appears that the previous version was incorrect, so these changes are necessary. The SCB register map type (scb_reg_map) appears to be adapted from versions specified by ARM; these include every possible register, and do not necessarily apply to the STM32, since some registers are implementation defined, to the extent that the implementation is allowed not to feature them at all. Thus, the current definition appears to be an overreach, since libmaple is STM32-specific. We should thus revise it based on ST's PM0056, where the STM32 SCB is specified. However, the ST docs appear to be buggy. In particular, they appear to contradict requirements made by ARM v7-M ARM with respect to the debug fault status register (DFSR), which ARM says must exist, but ST fails to specify (it does leave a DFSR-sized hole in the SCB memory layout, conveniently located next to some obvious typos which suggest that the section was not well-proofread). We defer to ARM and assume ST just forgot to document the register, and leave the DFSR field in struct scb_reg_map, since (based on my reading) its absence would be a silicon bug. All of the registers appearing in memory addresses higher than that of SCB_BFAR are not specified by ST, but the v7-M ARM appears to give some latitude on this to the implementation. Leave them in the source text, but put them in an appropriately-commented #if 0 block so that users who know they're there can yell at us if they find them missing. In this block, the Auxiliary Feature Register's field was "ADR" instead of "AFR" in struct scb_reg_map; fix this. Register bit definitions have been added which are named based on PM0056 when possible, and on the November 2010 "Derrata 2010_Q3" issue of the ARM v7-M Architecture Reference Manual, in the case of the DFSR. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* test-session: Add test case for disabling USB.Marti Bolivar2011-09-241-13/+10
| | | | | | | This replaces the previously undocumented 'd' option, which tested the pin mode INPUT_PULLDOWN. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Merge remote branch 'rryan/usb_fixes'Marti Bolivar2011-09-204-156/+90
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| * Missed one hard-coded structure size.RJ Ryan2011-09-181-1/+1
| | | | | | | | Signed-off-by: RJ Ryan <rryan@mit.edu>
| * Fix memory alignment of USB descriptor structures.RJ Ryan2011-09-183-155/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A variety of USB descriptor structures have been manually "unpacked". Instead of using the struct, their members were unpacked into the struct they were nested in. Additionally sizeof()'s were commented in favor of manual calculation of structure sizes. After uncommenting these changes, the USB CDC peripheral stopped correctly configuring with the host. The root problem with the structures is that GCC is padding them. By applying __attribute__((__packed__)), these problems are fixed. I removed all the instances of the workaround I saw within the USB code. Signed-off-by: RJ Ryan <rryan@mit.edu>
* | Add a libc abort() implementation.RJ Ryan2011-09-161-5/+28
| | | | | | | | | | | | | | | | | | | | | | The STL in particular relies on abort() for entering an error state. Without an abort() definition, the use of many STL primitives results in a link error because the default implementation of abort() uses _kill, _exit, and _getpid -- none of which are present. My abort() implementation writes an error message to the error USART and enters the throbbing-LED error state. Signed-off-by: RJ Ryan <rryan@mit.edu>
* | Add an __assert_func assertion handler so that libc does not use itsRJ Ryan2011-09-161-0/+9
|/ | | | | | | default implementation. This allows the use of assert() from libc's assert.h. Signed-off-by: RJ Ryan <rryan@mit.edu>
* Merge remote branch 'nzmichaelh/comment-fixups-2'Marti Bolivar2011-09-1415-4/+68
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| * Added more doxygen file level headers. Documented a few more functions.Michael Hope2011-09-1315-4/+68
| | | | | | | | Signed-off-by: Michael Hope <michaelh@juju.net.nz>
* | Make it easier to use the libmaple build system externally.Marti Bolivar2011-09-141-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It's been tricky for users to start their own projects while still using our build system. The current recommended practice to get this done involves modifying the top-level Makefile to add their module into LIBMAPLE_MODULES, and include their own rules.mk. Editing the repository Makefile is stupid and shouldn't be a necessary step. Instead of that, allow the environment to provide the initial value for LIBMAPLE_MODULES. This allows users to specify it on the command line. Also add WIRISH_PATH to the initial set of "useful" paths.
* | Update support/scripts/copy-to-ide.Marti Bolivar2011-09-131-2/+1
| | | | | | | | Oh, copy-to-ide. I long for your death.
* | [support/ld] Unify linker scripts.Marti Bolivar2011-09-1315-248/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new common.inc, which is common_rom.inc with some DEFINED(_FLASH_BUILD) usages thrown in to allow for RAM builds. It also uses a new REGION_RODATA region alias for read-only data. Move section .USER_FLASH to REGION_RODATA. This means it lives in RAM under RAM builds. Although this might be surprising, not doing so would make RAM builds useless. Modify the individual board linker scripts to properly set REGION_RODATA and _FLASH_BUILD before calling out to common.inc. Delete common_rom.inc, common_ram.inc, common_header.inc, in favor of common.inc. This should fix RAM builds on all boards.
* | [make] Factor out target/board configuration.Marti Bolivar2011-09-132-64/+103
| | | | | | | | | | | | | | | | | | Comment the Makefile more verbosely. It's been causing confusion on the forums. Add target-config.mk, this contains build configuration depending on the BOARD and MEMORY_TARGET variables. Its contents were cluttering up the Makefile and making it harder to read.
* | Makefile: Improve helpMarti Bolivar2011-09-131-9/+13
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* maple_native.cpp: Cosmetics.Marti Bolivar2011-09-121-2/+2
| | | | | | Stick FSMC_BCR_MTYP_SRAM among the bitfields assigned to the BCR write. Technically not necessary (SRAM is the default after reset), but good for readability and future-proofing.
* syscalls.c: Allow environment to specify heap boundaries.Marti Bolivar2011-09-121-6/+12
| | | | | | Rename HEAP_START/HEAP_END macros CONFIG_HEAP_START/CONFIG_HEAP_END, to mark them as build-time configuration options. Wrap their definitions with #ifndefs appropriately.
* usart.h: Deprecate rx_buf field in usart_dev.Marti Bolivar2011-09-121-1/+4
| | | | | | | nzmichaelh rightly argues that actual RX buffers should be heap-allocated, to avoid wastage for unused devices. Deprecate the field for 0.0.12, since that's coming out soon. This will let us get rid of this field in master immediately after 0.0.12 gets shipped.
* [support/ld] Put Maple Native's heap on external SRAM chip.Marti Bolivar2011-09-123-0/+12
| | | | | | Specify _lm_heap_start and _lm_heap_end in Maple Native's linker scripts to point respectively to beginning and end of FSMC-mapped external SRAM chip addresses.
* [support/ld] Add linker support for reconfigurable heap.Marti Bolivar2011-09-123-15/+21
| | | | | | | | | | | | | | | - common_header.inc: Declare EXTERN symbols _lm_heap_start and _lm_heap_end. - common_rom.inc: Check for _lm_heap_start and _lm_heap_end. If they are defined, preserve their values. Otherwise, _lm_heap_start is starts after .bss, and _lm_heap_end is the end of SRAM. This allows existing linker scripts to continue using the old heap scheme, but allows for customizability elsewhere. - syscalls.c: Respect the addresses of _lm_heap_start and _lm_heap_end as the boundaries of the heap in _sbrk().
* common_rom.inc: More comments.Marti Bolivar2011-09-121-8/+20
| | | | Explain what's going on so unfamiliar readers have more hope.
* test-fsmc.cpp: Fix incorrect sram_end.Marti Bolivar2011-09-121-1/+1
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* Maple Native: Fix BOARD_NR_USED_PINS, boardUsedPins.Marti Bolivar2011-09-092-8/+4
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* common_rom.inc: Eliminate apparently useless sections.Marti Bolivar2011-09-091-8/+0
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* [support/ld] Rename vector table section.Marti Bolivar2011-09-094-5/+2
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* Linker scripts: Remove useless junk.Marti Bolivar2011-09-092-16/+1
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* Linker scripts: Rename section targets.Marti Bolivar2011-09-092-14/+5
| | | | | | Use region aliases in common_ram.inc, common_rom.inc. These are provided by the individual board scripts which include these. Note that the aliases have horrible names. We'll need to fix that up.
* Linker scripts: Indent common_ram.inc, common_rom.inc.Marti Bolivar2011-09-092-148/+149
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* Updated against 0.11Michael Hope2011-09-082-27/+50
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* syscalls.c: Bugfix _sbrk() implementation.Marti Bolivar2011-09-071-16/+31
| | | | | | | | | | | | Fix _sbrk() implementation so it properly rejects negative arguments which would send the program break below the heap start. Fix incorrect check against argument causing heap overflow. Also set errno properly to ENOMEM when the call fails. Beginning and end of the heap are now determined by HEAP_START and HEAP_END macros. Their current values seem to work OK for heaps on the internal SRAM, but they'll need to get generalized for Maple Native.
* stm32.h: Add STM32_SRAM_END.Marti Bolivar2011-09-071-0/+12
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* Update outdated stm32.h usages.Marti Bolivar2011-09-075-12/+12
| | | | | stm32.h has been updated to prefix its definitions. Update the rest of libmaple to take this into account.
* stm32.h: Remove SRAM_SIZE, prefix all #defines.Marti Bolivar2011-09-071-41/+63
| | | | | | | | | | | | | | | Remove SRAM_SIZE define. This seems like a bad idea given that bootloader builds drop user code at an offset from the SRAM start address. Prefix every #define with "STM32_" to avoid polluting the namespace. Keep and deprecate the remaining ones (except for aforementioned SRAM_SIZE), but define them to be the same as their prefixed variant. Take a little extra care to break libmaple builds which specify PCLK1 and PCLK2 instead of the prefixed versions. Some libmaple forks make use of these; they will break in mysterious ways if they don't handle this change properly.
* Tidy up linker scripts.Marti Bolivar2011-09-0712-27/+19
| | | | Comment/whitespace changes only.
* syscalls.c: Remove fictitious uart_send() and broken comments.Marti Bolivar2011-09-071-10/+0
| | | | | | | | | uart_send() is not part of libmaple, and nm doesn't show it getting linked in from anywhere else, so I don't believe it exists. Remove it. Also remove some commented-out sections from getch(), putch(), _write(), and fgets(). These either reference uart_send() or use old libmaple APIs which no longer exist.
* util.c: Respect stm32.h.Marti Bolivar2011-09-071-1/+1
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* [support/ld] Factor out header from common_rom.inc, common_ram.inc.Marti Bolivar2011-09-073-73/+48
| | | | | | | The linker scripts share an initial section. Factor this out into a new file common_header.inc, and have the main linker scripts include this file. Apart from eliminating a redundancy, this will make it easier to add new linker scripts in the future.
* Makefile: tweak clean, add mrproper, make help more helpful.Marti Bolivar2011-09-071-2/+11
| | | | | | | | | | | Remove doxygen from clean; no sense killing the docs just because you want to change boards. Add new "mrproper" target to nuke all autogenerated files; currently, this is just the build/ and doxygen/ directories. Make a note of BOARD env. variable and doxygen, mrproper targets from help target.
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