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2017-05-06stmhal: Convert all module and method tables to use MP_ROM macros.Damien George
2017-03-31stmhal/i2c: Clean the cache so that I2C DMA works on F7 MCUs.Damien George
2017-03-31stmhal: Move L4/F7 I2C timing constants from mpconfigboard.h to i2c.c.Damien George
Such constants are MCU specific so shouldn't be specified in the board config file (else it leads to too much duplication of code). This patch also adds I2C timing values for the F767/F769 for 100k, 400k and 1MHz I2C bus frequencies.
2017-03-02stmhal: Use mp_hal_delay_ms instead of HAL_Delay.Damien George
2017-01-04all: Consistently update signatures of .make_new and .call methods.Paul Sokolovsky
Otherwise, they serve reoccurring source of copy-paste mistakes and breaking nanbox build.
2016-11-25stmhal/i2c: Expose the pyb_i2c_obj_t struct and some relevant functions.Damien George
So they can be used by other parts of the code.
2016-11-25stmhal/i2c: Add support for I2C4 hardware block on F7 MCUs.Damien George
2016-11-22stmhal/i2c: Remove use of legacy I2C_NOSTRETCH_DISABLED option.Damien George
In the new HAL this is renamed to I2C_NOSTRETCH_DISABLE.
2016-11-21stmhal/i2c: Use the HAL's I2C IRQ handler for F7 and L4 MCUs.Damien George
The custom IRQ handler only works for F4 MCUs, which have the SR1 register.
2016-11-16stmhal/i2c: provide custom IRQ handlersKrzysztof Blazewicz
Use custom handlers providing minimal required functionality because those provided by ST increase code size by almost 2 KiB.
2016-11-16stmhal/i2c: handle I2C IRQsKrzysztof Blazewicz
This is required by HAL Driver for error handling since v1.5.0
2016-11-11stmhal: Rename mp_hal_pin_set_af to _config_alt, to simplify alt config.Damien George
This way the caller doesn't need to initialise a big GPIO_InitTypeDef struct, and HAL_GPIO_Init is no longer called.
2016-11-11stmhal/i2c: Reset the I2C peripheral if there was an error on the bus.Damien George
If an I2C send/recv fails then the peripheral is now checked to see if it's in a "stuck" state waiting for the stop bit, and if so then it is reset so that the next I2C transaction can proceed. This patch also de-inits the I2C peripheral in the init() method, before init'ing it again.
2016-11-11stmhal/i2c: Add option to I2C to enable/disable use of DMA transfers.Damien George
New keyword option in constructor and init() method is "dma=<bool>". DMA is now disabled by default for I2C transfers because it currently does not handle I2C bus errors very well (eg if slave device doesn't ACK or NACK correctly during a transfer).
2016-10-18stmhal: Refactor pin usage to use mp_hal_pin API.Damien George
2016-05-05stmhal: L4: Adapt DMA to be able to support STM32L4 MCU series.Tobias Badertscher
The main thing is to change the DMA code in a way that the structure DMA_Stream_TypeDef (which is similar to DMA_Channel_TypeDef on stm32l4) is no longer used outside of dma.c, as this structure only exists for the F4 series. Therefore I introduced a new structure (dma_descr_t) which handles all DMA specific stuff for configuration. Further the periphery (spi, i2c, sdcard, dac) does not need to know the internals of the dma.
2016-05-02stmhal, cc3200: Change i2c.scan() method to scan addresses 0x08-0x77.Damien George
A standard I2C address is 7 bits but addresses 0b0000xxx and 0b1111xxx are reserved. The scan() method is changed to reflect this, along with the docs.
2016-02-10stmhal: Add a function for setting the pin alternate functionDave Hylands
mp_hal_gpio_set_af will search for a given function and unit and set the alternate function to the alternate function index found.
2016-01-11py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*.Damien George
The first argument to the type.make_new method is naturally a uPy type, and all uses of this argument cast it directly to a pointer to a type structure. So it makes sense to just have it a pointer to a type from the very beginning (and a const pointer at that). This patch makes such a change, and removes all unnecessary casting to/from mp_obj_t.
2015-12-02stmhal: Put all DMA channel & stream definitions in dma.hDave Hylands
2015-11-14stmhal/modmachine: Initial attempt to add I2C & SPI classes.Paul Sokolovsky
In new hardware API, these classes implement master modes of interfaces, and "mode" parameter is not accepted. Trying to implement new HW API in terms of older pyb module leaves variuos corner cases: In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on interpretation), while in old API, it means "I2C #1, with no settings changes". For I2C class, it's easy to make mode optional, because that's last positional param, but for SPI, there's "baudrate" after it (which is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
2015-10-31all: Add py/mphal.h and use it in all ports.Damien George
py/mphal.h contains declarations for generic mp_hal_XXX functions, such as stdio and delay/ticks, which ports should provide definitions for. A port will also provide mphalport.h with further HAL declarations.
2015-08-05stmhal: Enable I2C support for F7 MCUs.Dave Hylands
2015-08-03stmhal: Factor GPIO clock enable logic into mp_hal_gpio_clock_enable.Damien George
Extracted GPIO clock enable logic into mp_hal_gpio_clock_enable and called from anyplace which might need to use GPIO functions on ports other than A-D. Thanks to Dave Hylands for the patch.
2015-07-30stmhal: Add STM32F7DISC and associated changes.Dave Hylands
2015-06-24stmhal/dma.c: Modify dma_init() to accept init struct as an argumentblmorris
This removes hard-coded DMA init params from dma_init(), instead defining these parameters in a DMA_InitTypeDef struct that gets passed as an argument to dma_init() This makes dma_init more generic so it can be used for I2S and SD Card, which require different initialization parameters.
2015-06-22stmhal: Reorganise code for parsing keyword args in I2C methods.Damien George
To make it the same as SPI and UART.
2015-06-10stmhal: Make I2C use DMA when interrupts are enabled.Damien George
2015-05-28stmhal: Fix off-by-one error when checking for valid I2C and SPI bus.Damien George
2015-05-27stmhal: Allow to name I2C busses, and give them names for pyboard.Damien George
2015-04-18stmhal: Make I2C busses and their pins configurable in mpconfigboard.h.Damien George
2015-04-16py: Overhaul and simplify printf/pfenv mechanism.Damien George
Previous to this patch the printing mechanism was a bit of a tangled mess. This patch attempts to consolidate printing into one interface. All (non-debug) printing now uses the mp_print* family of functions, mainly mp_printf. All these functions take an mp_print_t structure as their first argument, and this structure defines the printing backend through the "print_strn" function of said structure. Printing from the uPy core can reach the platform-defined print code via two paths: either through mp_sys_stdout_obj (defined pert port) in conjunction with mp_stream_write; or through the mp_plat_print structure which uses the MP_PLAT_PRINT_STRN macro to define how string are printed on the platform. The former is only used when MICROPY_PY_IO is defined. With this new scheme printing is generally more efficient (less layers to go through, less arguments to pass), and, given an mp_print_t* structure, one can call mp_print_str for efficiency instead of mp_printf("%s", ...). Code size is also reduced by around 200 bytes on Thumb2 archs.
2015-01-21py: Remove mp_obj_str_builder and use vstr instead.Damien George
With this patch str/bytes construction is streamlined. Always use a vstr to build a str/bytes object. If the size is known beforehand then use vstr_init_len to allocate only required memory. Otherwise use vstr_init and the vstr will grow as needed. Then use mp_obj_new_str_from_vstr to create a str/bytes object using the vstr memory. Saves code ROM: 68 bytes on stmhal, 108 bytes on bare-arm, and 336 bytes on unix x64.
2015-01-01stmhal: Prefix includes with py/; remove need for -I../py.Damien George
2014-10-23stmhal: Use OSError with POSIX error code for HAL errors.Damien George
Addresses issue #921.
2014-08-30Change some parts of the core API to use mp_uint_t instead of uint/int.Damien George
Addressing issue #50, still some way to go yet.
2014-07-21Change boolean 'use_16bit_addr' to int 'addr_size', can be either 8 or 16 ↵blmorris
bits, default value is 8 to maintain compatibility with existing code.
2014-07-11Incorporate stylistic changes suggested by @dhylandsblmorris
2014-07-11Add keyword argument 'memaddr_use_16b' to i2c.mem_read and mem_write methodsblmorris
to allow these methods to transmit 16 bit addresses to an i2c device Add 'memaddr_use_16b' to qstrdefsport.h
2014-07-03Rename machine_(u)int_t to mp_(u)int_t.Damien George
See discussion in issue #50.
2014-06-19Prefix ARRAY_SIZE with micropython prefix MP_Emmanuel Blot
2014-05-04stmhal: Document physical pins for SPI, I2C, UART busses.Damien George
2014-05-03Add license header to (almost) all files.Damien George
Blanket wide to all .c and .h files. Some files originating from ST are difficult to deal with (license wise) so it was left out of those. Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03stmhal: Fix typos in class documentation.Damien George
2014-05-02unix,stmhal: Make "mpconfig.h" be first included, as other headers depend on it.Paul Sokolovsky
2014-04-29stmhal: Add documentation in comments, and script to generate HTML.Damien George
Decided to write own script to pull documentation from comments in C code. Style for writing auto generated documentation is: start line with /// and then use standard markdown to write the comment. Keywords recognised by the scraper begin with backslash. See code for examples. Running: python gendoc.py modpyb.c accel.c adc.c dac.c extint.c i2c.c led.c pin.c rng.c servo.c spi.c uart.c usrsw.c, will generate a HTML structure in gendoc-out/. gendoc.py is crude but functional. Needed something quick, and this was it.
2014-04-26Simplify names for argcheck.c / arg parsing.Damien George
2014-04-26Add ARRAY_SIZE macro, and use it where possible.Damien George
2014-04-21stmhal: Add some documentation to I2C, SPI and USART modules.Damien George
2014-04-21stmhal, SPI and I2C: Improvements to functionality and consistency.Damien George