51dabac096
This commit also introduces board directories and moves board specific config into the appropriate board directory. boards/stm32f4xx-af.csv was extracted from the STM32F4xx datasheet and hand-tweaked. make-pins.py takes boards/stm32f4xx-af.csv, boards/stm32f4xx-prefix.c, and boards/BOARD-NAME/pins.csv as input and generates the file build/pins_BOARD_NAME.c The generated pin file for PYBOARD4 looks like this: https://gist.github.com/dhylands/9063231 The generated pins file includes all of the supported alternate functions, and includes upsupported alternate functions as comments. See the commnet block at the top of stm/pin_map.c for details on how to use the pin mapper. I also went ahead and modified stm/gpio.c to use the pin mapper.
35 lines
756 B
C
35 lines
756 B
C
// stm32fxx-prefix.c becomes the initial portion of the generated pins file.
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#include <stdio.h>
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#include <stdint.h>
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#include <stm32f4xx.h>
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "pin.h"
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#define AF(af_idx, af_fn, af_unit, af_type, af_ptr) \
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{ \
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{ &pin_af_obj_type }, \
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.idx = (af_idx), \
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.fn = AF_FN_ ## af_fn, \
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.unit = (af_unit), \
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.type = AF_PIN_TYPE_ ## af_fn ## _ ## af_type, \
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.af_fn = (af_ptr) \
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}
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#define PIN(p_port, p_pin, p_num_af, p_af) \
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{ \
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{ &pin_obj_type }, \
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.name = #p_port #p_pin, \
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.port = PORT_ ## p_port, \
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.pin = (p_pin), \
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.num_af = (p_num_af), \
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.pin_mask = (1 << ((p_pin) & 0x0f)), \
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.gpio = GPIO ## p_port, \
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.af = p_af, \
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}
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