675 lines
19 KiB
C
675 lines
19 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stm32f4xx.h>
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#include <stm32f4xx_rcc.h>
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#include <stm32f4xx_syscfg.h>
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#include <stm32f4xx_gpio.h>
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#include <stm32f4xx_exti.h>
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#include <stm32f4xx_tim.h>
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#include <stm32f4xx_pwr.h>
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#include <stm32f4xx_rtc.h>
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#include <stm32f4xx_usart.h>
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#include <stm32f4xx_rng.h>
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#include <usbd_storage_msd.h>
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#include <stm_misc.h>
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#include "std.h"
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#include "misc.h"
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#include "ff.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "nlr.h"
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#include "misc.h"
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#include "lexer.h"
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#include "lexerfatfs.h"
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#include "parse.h"
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#include "obj.h"
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#include "parsehelper.h"
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#include "compile.h"
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#include "runtime0.h"
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#include "runtime.h"
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#include "gc.h"
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#include "gccollect.h"
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#include "systick.h"
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#include "pendsv.h"
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#include "pyexec.h"
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#include "led.h"
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#include "gpio.h"
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#include "servo.h"
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#include "lcd.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 "usart.h"
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#include "usb.h"
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#include "timer.h"
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#include "audio.h"
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#include "pybwlan.h"
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#include "i2c.h"
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#include "usrsw.h"
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#include "adc.h"
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#include "rtc.h"
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#include "file.h"
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int errno;
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static FATFS fatfs0;
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#if MICROPY_HW_HAS_SDCARD
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static FATFS fatfs1;
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#endif
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void flash_error(int n) {
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for (int i = 0; i < n; i++) {
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led_state(PYB_LED_R1, 1);
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led_state(PYB_LED_R2, 0);
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sys_tick_delay_ms(250);
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led_state(PYB_LED_R1, 0);
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led_state(PYB_LED_R2, 1);
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sys_tick_delay_ms(250);
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}
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led_state(PYB_LED_R2, 0);
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}
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void __fatal_error(const char *msg) {
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#if MICROPY_HW_HAS_LCD
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lcd_print_strn("\nFATAL ERROR:\n", 14);
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lcd_print_strn(msg, strlen(msg));
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#endif
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for (;;) {
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flash_error(1);
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}
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}
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static mp_obj_t pyb_config_source_dir = MP_OBJ_NULL;
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static mp_obj_t pyb_config_main = MP_OBJ_NULL;
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mp_obj_t pyb_source_dir(mp_obj_t source_dir) {
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if (MP_OBJ_IS_STR(source_dir)) {
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pyb_config_source_dir = source_dir;
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}
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return mp_const_none;
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}
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mp_obj_t pyb_main(mp_obj_t main) {
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if (MP_OBJ_IS_STR(main)) {
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pyb_config_main = main;
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}
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return mp_const_none;
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}
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// sync all file systems
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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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mp_obj_t pyb_delay(mp_obj_t count) {
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sys_tick_delay_ms(mp_obj_get_int(count));
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return mp_const_none;
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}
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void fatality(void) {
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led_state(PYB_LED_R1, 1);
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led_state(PYB_LED_G1, 1);
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led_state(PYB_LED_R2, 1);
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led_state(PYB_LED_G2, 1);
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}
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static const char fresh_boot_py[] =
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"# boot.py -- run on boot-up\n"
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"# can run arbitrary Python, but best to keep it minimal\n"
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"\n"
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"pyb.source_dir('/src')\n"
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"pyb.main('main.py')\n"
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"#pyb.usb_usr('VCP')\n"
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"#pyb.usb_msd(True, 'dual partition')\n"
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"#pyb.flush_cache(False)\n"
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"#pyb.error_log('error.txt')\n"
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;
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static const char fresh_main_py[] =
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"# main.py -- put your code here!\n"
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;
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static const char *help_text =
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"Welcome to Micro Python!\n\n"
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"This is a *very* early version of Micro Python and has minimal functionality.\n\n"
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"Specific commands for the board:\n"
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" pyb.info() -- print some general information\n"
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" pyb.gc() -- run the garbage collector\n"
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" pyb.repl_info(<val>) -- enable/disable printing of info after each command\n"
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" pyb.delay(<n>) -- wait for n milliseconds\n"
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" pyb.Led(<n>) -- create Led object for LED n (n=1,2)\n"
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" Led methods: on(), off()\n"
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" pyb.Servo(<n>) -- create Servo object for servo n (n=1,2,3,4)\n"
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" Servo methods: angle(<x>)\n"
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" pyb.switch() -- return True/False if switch pressed or not\n"
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" pyb.accel() -- get accelerometer values\n"
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" pyb.rand() -- get a 16-bit random number\n"
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" pyb.gpio(<port>) -- get port value (port='A4' for example)\n"
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" pyb.gpio(<port>, <val>) -- set port value, True or False, 1 or 0\n"
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" pyb.ADC(<port>) -- make an analog port object (port='C0' for example)\n"
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" ADC methods: read()\n"
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;
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// get some help about available functions
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static mp_obj_t pyb_help(void) {
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printf("%s", help_text);
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return mp_const_none;
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}
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// get lots of info about the board
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static mp_obj_t pyb_info(void) {
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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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RCC_ClocksTypeDef rcc_clocks;
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RCC_GetClocksFreq(&rcc_clocks);
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printf("S=%lu\nH=%lu\nP1=%lu\nP2=%lu\n", rcc_clocks.SYSCLK_Frequency, rcc_clocks.HCLK_Frequency, rcc_clocks.PCLK1_Frequency, rcc_clocks.PCLK2_Frequency);
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}
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// to print info about memory
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{
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printf("_text_end=%p\n", &_text_end);
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printf("_data_start_init=%p\n", &_data_start_init);
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printf("_data_start=%p\n", &_data_start);
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printf("_data_end=%p\n", &_data_end);
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printf("_bss_start=%p\n", &_bss_start);
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printf("_bss_end=%p\n", &_bss_end);
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printf("_stack_end=%p\n", &_stack_end);
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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(" %lu total\n", info.total);
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printf(" %lu : %lu\n", info.used, info.free);
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printf(" 1=%lu 2=%lu m=%lu\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("0:", &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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return mp_const_none;
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}
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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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static mp_obj_t pyb_stop(void) {
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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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return mp_const_none;
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}
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static mp_obj_t pyb_standby(void) {
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PWR_EnterSTANDBYMode();
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return mp_const_none;
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}
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mp_obj_t pyb_hid_send_report(mp_obj_t arg) {
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mp_obj_t *items = mp_obj_get_array_fixed_n(arg, 4);
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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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mp_obj_t pyb_rng_get(void) {
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return mp_obj_new_int(RNG_GetRandomNumber() >> 16);
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}
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mp_obj_t pyb_millis(void) {
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return mp_obj_new_int(sys_tick_counter);
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}
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int main(void) {
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// TODO disable JTAG
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// update the SystemCoreClock variable
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SystemCoreClockUpdate();
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// set interrupt priority config to use all 4 bits for pre-empting
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
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// enable the CCM RAM and the GPIO's
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RCC->AHB1ENR |= RCC_AHB1ENR_CCMDATARAMEN | RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN | RCC_AHB1ENR_GPIODEN;
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#if MICROPY_HW_HAS_SDCARD
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{
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// configure SDIO pins to be high to start with (apparently makes it more robust)
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// FIXME this is not making them high, it just makes them outputs...
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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// Configure PD.02 CMD line
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_Init(GPIOD, &GPIO_InitStructure);
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}
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#endif
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#if defined(NETDUINO_PLUS_2)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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#if MICROPY_HW_HAS_SDCARD
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// Turn on the power enable for the sdcard (PB1)
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_WriteBit(GPIOB, GPIO_Pin_1, Bit_SET);
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#endif
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// Turn on the power for the 5V on the expansion header (PB2)
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_WriteBit(GPIOB, GPIO_Pin_2, Bit_SET);
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}
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#endif
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// basic sub-system init
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sys_tick_init();
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pendsv_init();
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led_init();
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#if MICROPY_HW_ENABLE_RTC
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rtc_init();
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#endif
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// turn on LED to indicate bootup
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led_state(PYB_LED_G1, 1);
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// more sub-system init
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#if MICROPY_HW_HAS_SWITCH
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switch_init();
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#endif
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#if MICROPY_HW_HAS_SDCARD
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sdcard_init();
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#endif
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storage_init();
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// uncomment these 2 lines if you want REPL on USART_6 (or another usart) as well as on USB VCP
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//pyb_usart_global_debug = PYB_USART_3;
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//usart_init(pyb_usart_global_debug, 115200);
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int first_soft_reset = true;
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soft_reset:
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// GC init
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gc_init(&_heap_start, &_heap_end);
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// Micro Python init
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qstr_init();
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rt_init();
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mp_obj_t def_path[3];
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def_path[0] = MP_OBJ_NEW_QSTR(MP_QSTR_0_colon__slash_);
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def_path[1] = MP_OBJ_NEW_QSTR(MP_QSTR_0_colon__slash_src);
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def_path[2] = MP_OBJ_NEW_QSTR(MP_QSTR_0_colon__slash_lib);
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sys_path = mp_obj_new_list(3, def_path);
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#if MICROPY_HW_HAS_LCD
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// LCD init (just creates class, init hardware by calling LCD())
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lcd_init();
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#endif
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#if MICROPY_HW_ENABLE_SERVO
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// servo
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servo_init();
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#endif
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#if MICROPY_HW_ENABLE_AUDIO
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// audio
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audio_init();
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#endif
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#if MICROPY_HW_ENABLE_TIMER
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// timer
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timer_init();
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#endif
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#if MICROPY_HW_ENABLE_RNG
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// RNG
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RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_RNG, ENABLE);
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RNG_Cmd(ENABLE);
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#endif
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// add some functions to the python namespace
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{
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rt_store_name(MP_QSTR_help, rt_make_function_n(0, pyb_help));
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mp_obj_t m = mp_obj_new_module(MP_QSTR_pyb);
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rt_store_attr(m, MP_QSTR_info, rt_make_function_n(0, pyb_info));
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rt_store_attr(m, MP_QSTR_gc, (mp_obj_t)&pyb_gc_obj);
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rt_store_attr(m, qstr_from_str("repl_info"), rt_make_function_n(1, pyb_set_repl_info));
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#if MICROPY_HW_HAS_SDCARD
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rt_store_attr(m, qstr_from_str("SD"), (mp_obj_t)&pyb_sdcard_obj);
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#endif
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rt_store_attr(m, MP_QSTR_stop, rt_make_function_n(0, pyb_stop));
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rt_store_attr(m, MP_QSTR_standby, rt_make_function_n(0, pyb_standby));
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rt_store_attr(m, MP_QSTR_source_dir, rt_make_function_n(1, pyb_source_dir));
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rt_store_attr(m, MP_QSTR_main, rt_make_function_n(1, pyb_main));
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rt_store_attr(m, MP_QSTR_sync, rt_make_function_n(0, pyb_sync));
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rt_store_attr(m, MP_QSTR_delay, rt_make_function_n(1, pyb_delay));
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#if MICROPY_HW_HAS_SWITCH
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rt_store_attr(m, MP_QSTR_switch, (mp_obj_t)&pyb_switch_obj);
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#endif
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#if MICROPY_HW_ENABLE_SERVO
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rt_store_attr(m, MP_QSTR_servo, rt_make_function_n(2, pyb_servo_set));
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#endif
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rt_store_attr(m, MP_QSTR_pwm, rt_make_function_n(2, pyb_pwm_set));
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#if MICROPY_HW_HAS_MMA7660
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rt_store_attr(m, MP_QSTR_accel, (mp_obj_t)&pyb_accel_read_obj);
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rt_store_attr(m, MP_QSTR_accel_read, (mp_obj_t)&pyb_accel_read_all_obj);
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rt_store_attr(m, MP_QSTR_accel_mode, (mp_obj_t)&pyb_accel_write_mode_obj);
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#endif
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rt_store_attr(m, MP_QSTR_hid, rt_make_function_n(1, pyb_hid_send_report));
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#if MICROPY_HW_ENABLE_RTC
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rt_store_attr(m, MP_QSTR_time, rt_make_function_n(0, pyb_rtc_read));
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#endif
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#if MICROPY_HW_ENABLE_RNG
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rt_store_attr(m, MP_QSTR_rand, rt_make_function_n(0, pyb_rng_get));
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#endif
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rt_store_attr(m, MP_QSTR_Led, (mp_obj_t)&pyb_Led_obj);
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#if MICROPY_HW_ENABLE_SERVO
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rt_store_attr(m, MP_QSTR_Servo, rt_make_function_n(1, pyb_Servo));
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#endif
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rt_store_attr(m, MP_QSTR_I2C, rt_make_function_n(2, pyb_I2C));
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|
rt_store_attr(m, MP_QSTR_Usart, rt_make_function_n(2, pyb_Usart));
|
|
rt_store_attr(m, qstr_from_str("ADC_all"), (mp_obj_t)&pyb_ADC_all_obj);
|
|
rt_store_attr(m, MP_QSTR_ADC, (mp_obj_t)&pyb_ADC_obj);
|
|
rt_store_attr(m, qstr_from_str("millis"), rt_make_function_n(0, pyb_millis));
|
|
|
|
gpio_init(m);
|
|
|
|
rt_store_name(MP_QSTR_pyb, m);
|
|
|
|
rt_store_name(MP_QSTR_open, rt_make_function_n(2, pyb_io_open));
|
|
}
|
|
|
|
// check if user switch held (initiates reset of filesystem)
|
|
bool reset_filesystem = false;
|
|
#if MICROPY_HW_HAS_SWITCH
|
|
if (switch_get()) {
|
|
reset_filesystem = true;
|
|
for (int i = 0; i < 50; i++) {
|
|
if (!switch_get()) {
|
|
reset_filesystem = false;
|
|
break;
|
|
}
|
|
sys_tick_delay_ms(10);
|
|
}
|
|
}
|
|
#endif
|
|
// local filesystem init
|
|
{
|
|
// try to mount the flash
|
|
FRESULT res = f_mount(&fatfs0, "0:", 1);
|
|
if (!reset_filesystem && res == FR_OK) {
|
|
// mount sucessful
|
|
} else if (reset_filesystem || res == FR_NO_FILESYSTEM) {
|
|
// no filesystem, so create a fresh one
|
|
// TODO doesn't seem to work correctly when reset_filesystem is true...
|
|
|
|
// LED on to indicate creation of LFS
|
|
led_state(PYB_LED_R2, 1);
|
|
uint32_t stc = sys_tick_counter;
|
|
|
|
res = f_mkfs("0:", 0, 0);
|
|
if (res == FR_OK) {
|
|
// success creating fresh LFS
|
|
} else {
|
|
__fatal_error("could not create LFS");
|
|
}
|
|
|
|
// create src directory
|
|
res = f_mkdir("0:/src");
|
|
// ignore result from mkdir
|
|
|
|
// create empty main.py
|
|
FIL fp;
|
|
f_open(&fp, "0:/src/main.py", FA_WRITE | FA_CREATE_ALWAYS);
|
|
UINT n;
|
|
f_write(&fp, fresh_main_py, sizeof(fresh_main_py) - 1 /* don't count null terminator */, &n);
|
|
// TODO check we could write n bytes
|
|
f_close(&fp);
|
|
|
|
// keep LED on for at least 200ms
|
|
sys_tick_wait_at_least(stc, 200);
|
|
led_state(PYB_LED_R2, 0);
|
|
} else {
|
|
__fatal_error("could not access LFS");
|
|
}
|
|
}
|
|
|
|
// make sure we have a /boot.py
|
|
{
|
|
FILINFO fno;
|
|
FRESULT res = f_stat("0:/boot.py", &fno);
|
|
if (res == FR_OK) {
|
|
if (fno.fattrib & AM_DIR) {
|
|
// exists as a directory
|
|
// TODO handle this case
|
|
// see http://elm-chan.org/fsw/ff/img/app2.c for a "rm -rf" implementation
|
|
} else {
|
|
// exists as a file, good!
|
|
}
|
|
} else {
|
|
// doesn't exist, create fresh file
|
|
|
|
// LED on to indicate creation of boot.py
|
|
led_state(PYB_LED_R2, 1);
|
|
uint32_t stc = sys_tick_counter;
|
|
|
|
FIL fp;
|
|
f_open(&fp, "0:/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
|
|
UINT n;
|
|
f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py) - 1 /* don't count null terminator */, &n);
|
|
// TODO check we could write n bytes
|
|
f_close(&fp);
|
|
|
|
// keep LED on for at least 200ms
|
|
sys_tick_wait_at_least(stc, 200);
|
|
led_state(PYB_LED_R2, 0);
|
|
}
|
|
}
|
|
|
|
// run /boot.py
|
|
if (!pyexec_file("0:/boot.py")) {
|
|
flash_error(4);
|
|
}
|
|
|
|
if (first_soft_reset) {
|
|
#if MICROPY_HW_HAS_MMA7660
|
|
// MMA accel: init and reset address to zero
|
|
accel_init();
|
|
#endif
|
|
}
|
|
|
|
// turn boot-up LED off
|
|
led_state(PYB_LED_G1, 0);
|
|
|
|
#if MICROPY_HW_HAS_SDCARD
|
|
// if an SD card is present then mount it on 1:/
|
|
if (sdcard_is_present()) {
|
|
FRESULT res = f_mount(&fatfs1, "1:", 1);
|
|
if (res != FR_OK) {
|
|
printf("[SD] could not mount SD card\n");
|
|
} else {
|
|
if (first_soft_reset) {
|
|
// use SD card as medium for the USB MSD
|
|
usbd_storage_select_medium(USBD_STORAGE_MEDIUM_SDCARD);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef USE_HOST_MODE
|
|
// USB host
|
|
pyb_usb_host_init();
|
|
#elif defined(USE_DEVICE_MODE)
|
|
// USB device
|
|
pyb_usb_dev_init();
|
|
#endif
|
|
|
|
// run main script
|
|
{
|
|
vstr_t *vstr = vstr_new();
|
|
vstr_add_str(vstr, "0:/");
|
|
if (pyb_config_source_dir == MP_OBJ_NULL) {
|
|
vstr_add_str(vstr, "src");
|
|
} else {
|
|
vstr_add_str(vstr, mp_obj_str_get_str(pyb_config_source_dir));
|
|
}
|
|
vstr_add_char(vstr, '/');
|
|
if (pyb_config_main == MP_OBJ_NULL) {
|
|
vstr_add_str(vstr, "main.py");
|
|
} else {
|
|
vstr_add_str(vstr, mp_obj_str_get_str(pyb_config_main));
|
|
}
|
|
if (!pyexec_file(vstr_str(vstr))) {
|
|
flash_error(3);
|
|
}
|
|
vstr_free(vstr);
|
|
}
|
|
|
|
|
|
#if MICROPY_HW_HAS_MMA7660
|
|
// HID example
|
|
if (0) {
|
|
uint8_t data[4];
|
|
data[0] = 0;
|
|
data[1] = 1;
|
|
data[2] = -2;
|
|
data[3] = 0;
|
|
for (;;) {
|
|
#if MICROPY_HW_HAS_SWITCH
|
|
if (switch_get()) {
|
|
data[0] = 0x01; // 0x04 is middle, 0x02 is right
|
|
} else {
|
|
data[0] = 0x00;
|
|
}
|
|
#else
|
|
data[0] = 0x00;
|
|
#endif
|
|
accel_start(0x4c /* ACCEL_ADDR */, 1);
|
|
accel_send_byte(0);
|
|
accel_restart(0x4c /* ACCEL_ADDR */, 0);
|
|
for (int i = 0; i <= 1; i++) {
|
|
int v = accel_read_ack() & 0x3f;
|
|
if (v & 0x20) {
|
|
v |= ~0x1f;
|
|
}
|
|
data[1 + i] = v;
|
|
}
|
|
accel_read_nack();
|
|
usb_hid_send_report(data);
|
|
sys_tick_delay_ms(15);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if MICROPY_HW_HAS_WLAN
|
|
// wifi
|
|
pyb_wlan_init();
|
|
pyb_wlan_start();
|
|
#endif
|
|
|
|
pyexec_repl();
|
|
|
|
printf("PYB: sync filesystems\n");
|
|
pyb_sync();
|
|
|
|
printf("PYB: soft reboot\n");
|
|
|
|
first_soft_reset = false;
|
|
goto soft_reset;
|
|
}
|
|
|
|
// these 2 functions seem to actually work... no idea why
|
|
// replacing with libgcc does not work (probably due to wrong calling conventions)
|
|
double __aeabi_f2d(float x) {
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
float __aeabi_d2f(double x) {
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
double sqrt(double x) {
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
machine_float_t machine_sqrt(machine_float_t x) {
|
|
// TODO
|
|
return x;
|
|
}
|