448 lines
15 KiB
C
448 lines
15 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include "stm32f4xx_hal.h"
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#include "mpconfig.h"
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#include "misc.h"
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#include "nlr.h"
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#include "qstr.h"
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#include "obj.h"
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#include "gc.h"
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#include "gccollect.h"
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#include "irq.h"
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#include "systick.h"
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#include "pyexec.h"
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#include "led.h"
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#include "pin.h"
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#include "timer.h"
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#include "extint.h"
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#include "usrsw.h"
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#include "rng.h"
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#include "rtc.h"
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#include "i2c.h"
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#include "spi.h"
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#include "uart.h"
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#include "adc.h"
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#include "storage.h"
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#include "sdcard.h"
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#include "accel.h"
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#include "servo.h"
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#include "dac.h"
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#include "lcd.h"
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#include "usb.h"
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#include "pybstdio.h"
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#include "ff.h"
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#include "portmodules.h"
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/// \module pyb - functions related to the pyboard
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///
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/// The `pyb` module contains specific functions related to the pyboard.
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/// \function bootloader()
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/// Activate the bootloader without BOOT* pins.
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STATIC NORETURN mp_obj_t pyb_bootloader(void) {
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pyb_usb_dev_stop();
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storage_flush();
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HAL_RCC_DeInit();
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HAL_DeInit();
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__HAL_REMAPMEMORY_SYSTEMFLASH();
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// arm-none-eabi-gcc 4.9.0 does not correctly inline this
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// MSP function, so we write it out explicitly here.
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//__set_MSP(*((uint32_t*) 0x00000000));
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__ASM volatile ("movs r3, #0\nldr r3, [r3, #0]\nMSR msp, r3\n" : : : "r3", "sp");
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((void (*)(void)) *((uint32_t*) 0x00000004))();
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while (1);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_bootloader_obj, pyb_bootloader);
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/// \function info([dump_alloc_table])
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/// Print out lots of information about the board.
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STATIC mp_obj_t pyb_info(uint n_args, const mp_obj_t *args) {
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// get and print unique id; 96 bits
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{
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byte *id = (byte*)0x1fff7a10;
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printf("ID=%02x%02x%02x%02x:%02x%02x%02x%02x:%02x%02x%02x%02x\n", id[0], id[1], id[2], id[3], id[4], id[5], id[6], id[7], id[8], id[9], id[10], id[11]);
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}
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// get and print clock speeds
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// SYSCLK=168MHz, HCLK=168MHz, PCLK1=42MHz, PCLK2=84MHz
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{
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printf("S=%lu\nH=%lu\nP1=%lu\nP2=%lu\n",
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HAL_RCC_GetSysClockFreq(),
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HAL_RCC_GetHCLKFreq(),
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HAL_RCC_GetPCLK1Freq(),
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HAL_RCC_GetPCLK2Freq());
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}
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// to print info about memory
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{
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printf("_etext=%p\n", &_etext);
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printf("_sidata=%p\n", &_sidata);
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printf("_sdata=%p\n", &_sdata);
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printf("_edata=%p\n", &_edata);
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printf("_sbss=%p\n", &_sbss);
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printf("_ebss=%p\n", &_ebss);
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printf("_estack=%p\n", &_estack);
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printf("_ram_start=%p\n", &_ram_start);
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printf("_heap_start=%p\n", &_heap_start);
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printf("_heap_end=%p\n", &_heap_end);
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printf("_ram_end=%p\n", &_ram_end);
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}
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// qstr info
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{
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uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
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qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
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printf("qstr:\n n_pool=%u\n n_qstr=%u\n n_str_data_bytes=%u\n n_total_bytes=%u\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
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}
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// GC info
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{
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gc_info_t info;
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gc_info(&info);
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printf("GC:\n");
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printf(" " UINT_FMT " total\n", info.total);
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printf(" " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
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printf(" 1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
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}
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// free space on flash
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{
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DWORD nclst;
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FATFS *fatfs;
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f_getfree("/flash", &nclst, &fatfs);
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printf("LFS free: %u bytes\n", (uint)(nclst * fatfs->csize * 512));
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}
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if (n_args == 1) {
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// arg given means dump gc allocation table
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gc_dump_alloc_table();
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_info_obj, 0, 1, pyb_info);
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/// \function unique_id()
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/// Returns a string of 12 bytes (96 bits), which is the unique ID for the MCU.
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STATIC mp_obj_t pyb_unique_id(void) {
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byte *id = (byte*)0x1fff7a10;
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return mp_obj_new_bytes(id, 12);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_unique_id_obj, pyb_unique_id);
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/// \function freq()
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/// Return a tuple of clock frequencies: (SYSCLK, HCLK, PCLK1, PCLK2).
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// TODO should also be able to set frequency via this function
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STATIC mp_obj_t pyb_freq(void) {
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mp_obj_t tuple[4] = {
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mp_obj_new_int(HAL_RCC_GetSysClockFreq()),
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mp_obj_new_int(HAL_RCC_GetHCLKFreq()),
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mp_obj_new_int(HAL_RCC_GetPCLK1Freq()),
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mp_obj_new_int(HAL_RCC_GetPCLK2Freq()),
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};
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return mp_obj_new_tuple(4, tuple);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_freq_obj, pyb_freq);
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/// \function sync()
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/// Sync all file systems.
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STATIC mp_obj_t pyb_sync(void) {
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storage_flush();
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_sync_obj, pyb_sync);
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/// \function millis()
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/// Returns the number of milliseconds since the board was last reset.
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///
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/// Note that this may return a negative number. This allows you to always
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/// do:
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/// start = pyb.millis()
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/// ...do some operation...
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/// elapsed = pyb.millis() - start
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///
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/// and as long as the time of your operation is less than 24 days, you'll
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/// always get the right answer and not have to worry about whether pyb.millis()
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/// wraps around.
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STATIC mp_obj_t pyb_millis(void) {
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// We want to "cast" the 32 bit unsigned into a small-int. This means
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// copying the MSB down 1 bit (extending the sign down), which is
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// equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
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return MP_OBJ_NEW_SMALL_INT(HAL_GetTick());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_millis_obj, pyb_millis);
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/// \function micros()
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/// Returns the number of microseconds since the board was last reset.
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///
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/// Note that this may return a negative number. This allows you to always
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/// do:
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/// start = pyb.micros()
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/// ...do some operation...
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/// elapsed = pyb.micros() - start
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///
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/// and as long as the time of your operation is less than 35 minutes, you'll
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/// always get the right answer and not have to worry about whether pyb.micros()
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/// wraps around.
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STATIC mp_obj_t pyb_micros(void) {
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// We want to "cast" the 32 bit unsigned into a small-int. This means
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// copying the MSB down 1 bit (extending the sign down), which is
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// equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
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return MP_OBJ_NEW_SMALL_INT(sys_tick_get_microseconds());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_micros_obj, pyb_micros);
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/// \function delay(ms)
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/// Delay for the given number of milliseconds.
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STATIC mp_obj_t pyb_delay(mp_obj_t ms_in) {
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mp_int_t ms = mp_obj_get_int(ms_in);
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if (ms >= 0) {
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HAL_Delay(ms);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_delay_obj, pyb_delay);
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/// \function udelay(us)
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/// Delay for the given number of microseconds.
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STATIC mp_obj_t pyb_udelay(mp_obj_t usec_in) {
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mp_int_t usec = mp_obj_get_int(usec_in);
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if (usec > 0) {
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uint32_t count = 0;
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const uint32_t utime = (168 * usec / 4);
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while (++count <= utime) {
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}
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_udelay_obj, pyb_udelay);
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#if 0
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STATIC void SYSCLKConfig_STOP(void) {
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/* After wake-up from STOP reconfigure the system clock */
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/* Enable HSE */
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RCC_HSEConfig(RCC_HSE_ON);
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/* Wait till HSE is ready */
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while (RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET) {
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}
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/* Enable PLL */
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RCC_PLLCmd(ENABLE);
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/* Wait till PLL is ready */
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while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {
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}
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/* Select PLL as system clock source */
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RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
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/* Wait till PLL is used as system clock source */
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while (RCC_GetSYSCLKSource() != 0x08) {
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}
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}
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#endif
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STATIC mp_obj_t pyb_stop(void) {
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#if 0
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PWR_EnterSTANDBYMode();
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//PWR_FlashPowerDownCmd(ENABLE); don't know what the logic is with this
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/* Enter Stop Mode */
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PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
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/* Configures system clock after wake-up from STOP: enable HSE, PLL and select
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* PLL as system clock source (HSE and PLL are disabled in STOP mode) */
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SYSCLKConfig_STOP();
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//PWR_FlashPowerDownCmd(DISABLE);
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#endif
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(pyb_stop_obj, pyb_stop);
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STATIC mp_obj_t pyb_standby(void) {
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#if 0
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PWR_EnterSTANDBYMode();
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#endif
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(pyb_standby_obj, pyb_standby);
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/// \function have_cdc()
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/// Return True if USB is connected as a serial device, False otherwise.
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STATIC mp_obj_t pyb_have_cdc(void ) {
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return MP_BOOL(usb_vcp_is_connected());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_have_cdc_obj, pyb_have_cdc);
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/// \function repl_uart(uart)
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/// Get or set the UART object that the REPL is repeated on.
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STATIC mp_obj_t pyb_repl_uart(uint n_args, const mp_obj_t *args) {
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if (n_args == 0) {
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if (pyb_stdio_uart == NULL) {
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return mp_const_none;
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} else {
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return pyb_stdio_uart;
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}
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} else {
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if (args[0] == mp_const_none) {
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pyb_stdio_uart = NULL;
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} else if (mp_obj_get_type(args[0]) == &pyb_uart_type) {
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pyb_stdio_uart = args[0];
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} else {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "need a UART object"));
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}
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_repl_uart_obj, 0, 1, pyb_repl_uart);
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/// \function hid((buttons, x, y, z))
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/// Takes a 4-tuple (or list) and sends it to the USB host (the PC) to
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/// signal a HID mouse-motion event.
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STATIC mp_obj_t pyb_hid_send_report(mp_obj_t arg) {
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mp_obj_t *items;
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mp_obj_get_array_fixed_n(arg, 4, &items);
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uint8_t data[4];
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data[0] = mp_obj_get_int(items[0]);
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data[1] = mp_obj_get_int(items[1]);
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data[2] = mp_obj_get_int(items[2]);
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data[3] = mp_obj_get_int(items[3]);
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usb_hid_send_report(data);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_hid_send_report_obj, pyb_hid_send_report);
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MP_DECLARE_CONST_FUN_OBJ(pyb_main_obj); // defined in main.c
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MP_DECLARE_CONST_FUN_OBJ(pyb_usb_mode_obj); // defined in main.c
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STATIC const mp_map_elem_t pyb_module_globals_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_bootloader), (mp_obj_t)&pyb_bootloader_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&pyb_info_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_unique_id), (mp_obj_t)&pyb_unique_id_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_freq), (mp_obj_t)&pyb_freq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_repl_info), (mp_obj_t)&pyb_set_repl_info_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_wfi), (mp_obj_t)&pyb_wfi_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_disable_irq), (mp_obj_t)&pyb_disable_irq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_enable_irq), (mp_obj_t)&pyb_enable_irq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_stop), (mp_obj_t)&pyb_stop_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_standby), (mp_obj_t)&pyb_standby_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_main), (mp_obj_t)&pyb_main_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_usb_mode), (mp_obj_t)&pyb_usb_mode_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_have_cdc), (mp_obj_t)&pyb_have_cdc_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_repl_uart), (mp_obj_t)&pyb_repl_uart_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_hid), (mp_obj_t)&pyb_hid_send_report_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_USB_VCP), (mp_obj_t)&pyb_usb_vcp_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_millis), (mp_obj_t)&pyb_millis_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_micros), (mp_obj_t)&pyb_micros_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_delay), (mp_obj_t)&pyb_delay_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_udelay), (mp_obj_t)&pyb_udelay_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&pyb_sync_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Timer), (mp_obj_t)&pyb_timer_type },
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#if MICROPY_HW_ENABLE_RNG
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{ MP_OBJ_NEW_QSTR(MP_QSTR_rng), (mp_obj_t)&pyb_rng_get_obj },
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#endif
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#if MICROPY_HW_ENABLE_RTC
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{ MP_OBJ_NEW_QSTR(MP_QSTR_RTC), (mp_obj_t)&pyb_rtc_type },
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#endif
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Pin), (mp_obj_t)&pin_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ExtInt), (mp_obj_t)&extint_type },
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#if MICROPY_HW_ENABLE_SERVO
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{ MP_OBJ_NEW_QSTR(MP_QSTR_pwm), (mp_obj_t)&pyb_pwm_set_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_servo), (mp_obj_t)&pyb_servo_set_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Servo), (mp_obj_t)&pyb_servo_type },
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#endif
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#if MICROPY_HW_HAS_SWITCH
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Switch), (mp_obj_t)&pyb_switch_type },
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#endif
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#if MICROPY_HW_HAS_SDCARD
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
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#endif
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{ MP_OBJ_NEW_QSTR(MP_QSTR_LED), (mp_obj_t)&pyb_led_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_I2C), (mp_obj_t)&pyb_i2c_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SPI), (mp_obj_t)&pyb_spi_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_UART), (mp_obj_t)&pyb_uart_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ADC), (mp_obj_t)&pyb_adc_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ADCAll), (mp_obj_t)&pyb_adc_all_type },
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#if MICROPY_HW_ENABLE_DAC
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{ MP_OBJ_NEW_QSTR(MP_QSTR_DAC), (mp_obj_t)&pyb_dac_type },
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#endif
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#if MICROPY_HW_HAS_MMA7660
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Accel), (mp_obj_t)&pyb_accel_type },
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#endif
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#if MICROPY_HW_HAS_LCD
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{ MP_OBJ_NEW_QSTR(MP_QSTR_LCD), (mp_obj_t)&pyb_lcd_type },
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#endif
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};
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STATIC const mp_obj_dict_t pyb_module_globals = {
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.base = {&mp_type_dict},
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.map = {
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.all_keys_are_qstrs = 1,
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.table_is_fixed_array = 1,
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.used = MP_ARRAY_SIZE(pyb_module_globals_table),
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.alloc = MP_ARRAY_SIZE(pyb_module_globals_table),
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.table = (mp_map_elem_t*)pyb_module_globals_table,
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},
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};
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const mp_obj_module_t pyb_module = {
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.base = { &mp_type_module },
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.name = MP_QSTR_pyb,
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.globals = (mp_obj_dict_t*)&pyb_module_globals,
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};
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