modpyb.c 11.2 KB
Newer Older
1
2
3
#include <stdint.h>
#include <stdio.h>

4
#include "stm32f4xx_hal.h"
5
6
7
8
9
10
11
12

#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "obj.h"
#include "gc.h"
#include "gccollect.h"
#include "systick.h"
13
#include "pybstdio.h"
14
#include "pyexec.h"
15
#include "led.h"
16
#include "pin.h"
17
#include "timer.h"
18
#include "extint.h"
19
#include "usrsw.h"
20
#include "rng.h"
21
#include "rtc.h"
Damien George's avatar
Damien George committed
22
23
#include "i2c.h"
#include "spi.h"
Damien George's avatar
Damien George committed
24
#include "uart.h"
Dave Hylands's avatar
Dave Hylands committed
25
#include "adc.h"
26
#include "storage.h"
Damien George's avatar
Damien George committed
27
#include "sdcard.h"
28
#include "accel.h"
29
#include "servo.h"
Damien George's avatar
Damien George committed
30
#include "dac.h"
31
#include "usb.h"
32
#include "modpyb.h"
33
#include "ff.h"
34

35
36
37
38
39
40
/// \module pyb - functions related to the pyboard
///
/// The `pyb` module contains specific functions related to the pyboard.

/// \function info([dump_alloc_table])
/// Print out lots of information about the board.
41
STATIC mp_obj_t pyb_info(uint n_args, const mp_obj_t *args) {
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
    // get and print unique id; 96 bits
    {
        byte *id = (byte*)0x1fff7a10;
        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]);
    }

    // get and print clock speeds
    // SYSCLK=168MHz, HCLK=168MHz, PCLK1=42MHz, PCLK2=84MHz
    {
        printf("S=%lu\nH=%lu\nP1=%lu\nP2=%lu\n", 
               HAL_RCC_GetSysClockFreq(),
               HAL_RCC_GetHCLKFreq(),
               HAL_RCC_GetPCLK1Freq(),
               HAL_RCC_GetPCLK2Freq());
    }

    // to print info about memory
    {
        printf("_etext=%p\n", &_etext);
        printf("_sidata=%p\n", &_sidata);
        printf("_sdata=%p\n", &_sdata);
        printf("_edata=%p\n", &_edata);
        printf("_sbss=%p\n", &_sbss);
        printf("_ebss=%p\n", &_ebss);
        printf("_estack=%p\n", &_estack);
        printf("_ram_start=%p\n", &_ram_start);
        printf("_heap_start=%p\n", &_heap_start);
        printf("_heap_end=%p\n", &_heap_end);
        printf("_ram_end=%p\n", &_ram_end);
    }

    // qstr info
    {
        uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
        qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
        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);
    }

    // GC info
    {
        gc_info_t info;
        gc_info(&info);
        printf("GC:\n");
85
86
87
        printf("  " UINT_FMT " total\n", info.total);
        printf("  " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
        printf("  1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
88
89
90
91
92
93
94
95
96
97
    }

    // free space on flash
    {
        DWORD nclst;
        FATFS *fatfs;
        f_getfree("0:", &nclst, &fatfs);
        printf("LFS free: %u bytes\n", (uint)(nclst * fatfs->csize * 512));
    }

98
99
100
101
102
    if (n_args == 1) {
        // arg given means dump gc allocation table
        gc_dump_alloc_table();
    }

103
104
    return mp_const_none;
}
105
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_info_obj, 0, 1, pyb_info);
106

107
108
/// \function unique_id()
/// Returns a string of 12 bytes (96 bits), which is the unique ID for the MCU.
109
110
111
112
113
114
STATIC mp_obj_t pyb_unique_id(void) {
    byte *id = (byte*)0x1fff7a10;
    return mp_obj_new_bytes(id, 12);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_unique_id_obj, pyb_unique_id);

115
116
/// \function freq()
/// Return a tuple of clock frequencies: (SYSCLK, HCLK, PCLK1, PCLK2).
117
118
119
120
121
122
123
124
125
126
127
128
// TODO should also be able to set frequency via this function
STATIC mp_obj_t pyb_freq(void) {
    mp_obj_t tuple[4] = {
       mp_obj_new_int(HAL_RCC_GetSysClockFreq()),
       mp_obj_new_int(HAL_RCC_GetHCLKFreq()),
       mp_obj_new_int(HAL_RCC_GetPCLK1Freq()),
       mp_obj_new_int(HAL_RCC_GetPCLK2Freq()),
    };
    return mp_obj_new_tuple(4, tuple);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_freq_obj, pyb_freq);

129
130
/// \function sync()
/// Sync all file systems.
131
132
133
134
135
136
STATIC mp_obj_t pyb_sync(void) {
    storage_flush();
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_sync_obj, pyb_sync);

137
138
/// \function millis()
/// Returns the number of milliseconds since the board was last reset.
139
140
141
142
143
STATIC mp_obj_t pyb_millis(void) {
    return mp_obj_new_int(HAL_GetTick());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_millis_obj, pyb_millis);

144
145
/// \function delay(ms)
/// Delay for the given number of milliseconds.
146
147
148
149
150
STATIC mp_obj_t pyb_delay(mp_obj_t ms_in) {
    machine_int_t ms = mp_obj_get_int(ms_in);
    if (ms >= 0) {
        HAL_Delay(ms);
    }
151
152
153
154
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_delay_obj, pyb_delay);

155
156
/// \function udelay(us)
/// Delay for the given number of microseconds.
157
158
159
160
161
162
STATIC mp_obj_t pyb_udelay(mp_obj_t usec_in) {
    machine_int_t usec = mp_obj_get_int(usec_in);
    if (usec > 0) {
        uint32_t count = 0;
        const uint32_t utime = (168 * usec / 4);
        while (++count <= utime) {
163
164
        }
    }
165
    return mp_const_none;
166
167
168
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_udelay_obj, pyb_udelay);

169
170
171
172
/// \function wfi()
/// Wait for an interrupt.
/// This executies a `wfi` instruction which reduces power consumption
/// of the MCU until an interrupt occurs, at which point execution continues.
173
174
175
176
177
178
STATIC mp_obj_t pyb_wfi(void) {
    __WFI();
    return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_wfi_obj, pyb_wfi);

179
180
/// \function disable_irq()
/// Disable interrupt requests.
181
182
183
184
185
186
STATIC mp_obj_t pyb_disable_irq(void) {
    __disable_irq();
    return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_disable_irq_obj, pyb_disable_irq);

187
188
/// \function enable_irq()
/// Enable interrupt requests.
189
190
191
192
193
194
STATIC mp_obj_t pyb_enable_irq(void) {
    __enable_irq();
    return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_enable_irq_obj, pyb_enable_irq);

195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
#if 0
STATIC void SYSCLKConfig_STOP(void) {
    /* After wake-up from STOP reconfigure the system clock */
    /* Enable HSE */
    RCC_HSEConfig(RCC_HSE_ON);

    /* Wait till HSE is ready */
    while (RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET) {
    }

    /* Enable PLL */
    RCC_PLLCmd(ENABLE);

    /* Wait till PLL is ready */
    while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {
    }

    /* Select PLL as system clock source */
    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

    /* Wait till PLL is used as system clock source */
    while (RCC_GetSYSCLKSource() != 0x08) {
    }
}
#endif

STATIC mp_obj_t pyb_stop(void) {
#if 0
    PWR_EnterSTANDBYMode();
    //PWR_FlashPowerDownCmd(ENABLE); don't know what the logic is with this

    /* Enter Stop Mode */
    PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);

    /* Configures system clock after wake-up from STOP: enable HSE, PLL and select 
     *        PLL as system clock source (HSE and PLL are disabled in STOP mode) */
    SYSCLKConfig_STOP();

    //PWR_FlashPowerDownCmd(DISABLE);
#endif
    return mp_const_none;
}

MP_DEFINE_CONST_FUN_OBJ_0(pyb_stop_obj, pyb_stop);

STATIC mp_obj_t pyb_standby(void) {
#if 0
    PWR_EnterSTANDBYMode();
#endif
    return mp_const_none;
}

MP_DEFINE_CONST_FUN_OBJ_0(pyb_standby_obj, pyb_standby);

249
250
/// \function have_cdc()
/// Return True if USB is connected as a serial device, False otherwise.
251
252
253
254
255
STATIC mp_obj_t pyb_have_cdc(void ) {
    return MP_BOOL(usb_vcp_is_connected());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_have_cdc_obj, pyb_have_cdc);

256
257
258
/// \function hid((buttons, x, y, z))
/// Takes a 4-tuple (or list) and sends it to the USB host (the PC) to
/// signal a HID mouse-motion event.
259
STATIC mp_obj_t pyb_hid_send_report(mp_obj_t arg) {
260
261
    mp_obj_t *items;
    mp_obj_get_array_fixed_n(arg, 4, &items);
262
263
264
265
266
267
268
269
    uint8_t data[4];
    data[0] = mp_obj_get_int(items[0]);
    data[1] = mp_obj_get_int(items[1]);
    data[2] = mp_obj_get_int(items[2]);
    data[3] = mp_obj_get_int(items[3]);
    usb_hid_send_report(data);
    return mp_const_none;
}
270
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_hid_send_report_obj, pyb_hid_send_report);
271
272
273

MP_DECLARE_CONST_FUN_OBJ(pyb_source_dir_obj); // defined in main.c
MP_DECLARE_CONST_FUN_OBJ(pyb_main_obj); // defined in main.c
274
MP_DECLARE_CONST_FUN_OBJ(pyb_usb_mode_obj); // defined in main.c
275
276
277
278
279

STATIC const mp_map_elem_t pyb_module_globals_table[] = {
    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },

    { MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&pyb_info_obj },
280
281
    { MP_OBJ_NEW_QSTR(MP_QSTR_unique_id), (mp_obj_t)&pyb_unique_id_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_freq), (mp_obj_t)&pyb_freq_obj },
282
283
284
    { MP_OBJ_NEW_QSTR(MP_QSTR_gc), (mp_obj_t)&pyb_gc_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_repl_info), (mp_obj_t)&pyb_set_repl_info_obj },

285
    { MP_OBJ_NEW_QSTR(MP_QSTR_wfi), (mp_obj_t)&pyb_wfi_obj },
286
287
288
    { MP_OBJ_NEW_QSTR(MP_QSTR_disable_irq), (mp_obj_t)&pyb_disable_irq_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_enable_irq), (mp_obj_t)&pyb_enable_irq_obj },

289
290
291
292
    { MP_OBJ_NEW_QSTR(MP_QSTR_stop), (mp_obj_t)&pyb_stop_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_standby), (mp_obj_t)&pyb_standby_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_source_dir), (mp_obj_t)&pyb_source_dir_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_main), (mp_obj_t)&pyb_main_obj },
293
    { MP_OBJ_NEW_QSTR(MP_QSTR_usb_mode), (mp_obj_t)&pyb_usb_mode_obj },
294

295
296
297
    { MP_OBJ_NEW_QSTR(MP_QSTR_have_cdc), (mp_obj_t)&pyb_have_cdc_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_hid), (mp_obj_t)&pyb_hid_send_report_obj },

298
299
300
301
302
    { MP_OBJ_NEW_QSTR(MP_QSTR_millis), (mp_obj_t)&pyb_millis_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_delay), (mp_obj_t)&pyb_delay_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_udelay), (mp_obj_t)&pyb_udelay_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&pyb_sync_obj },

303
304
    { MP_OBJ_NEW_QSTR(MP_QSTR_Timer), (mp_obj_t)&pyb_timer_type },

305
#if MICROPY_HW_ENABLE_RNG
306
    { MP_OBJ_NEW_QSTR(MP_QSTR_rng), (mp_obj_t)&pyb_rng_get_obj },
307
308
309
#endif

#if MICROPY_HW_ENABLE_RTC
310
    { MP_OBJ_NEW_QSTR(MP_QSTR_RTC), (mp_obj_t)&pyb_rtc_type },
311
312
#endif

313
314
315
    { MP_OBJ_NEW_QSTR(MP_QSTR_Pin), (mp_obj_t)&pin_type },
    { MP_OBJ_NEW_QSTR(MP_QSTR_ExtInt), (mp_obj_t)&extint_type },

316
317
318
#if MICROPY_HW_ENABLE_SERVO
    { MP_OBJ_NEW_QSTR(MP_QSTR_pwm), (mp_obj_t)&pyb_pwm_set_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_servo), (mp_obj_t)&pyb_servo_set_obj },
319
    { MP_OBJ_NEW_QSTR(MP_QSTR_Servo), (mp_obj_t)&pyb_servo_type },
320
321
322
#endif

#if MICROPY_HW_HAS_SWITCH
323
    { MP_OBJ_NEW_QSTR(MP_QSTR_Switch), (mp_obj_t)&pyb_switch_type },
324
325
326
327
328
329
#endif

#if MICROPY_HW_HAS_SDCARD
    { MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
#endif

330
    { MP_OBJ_NEW_QSTR(MP_QSTR_LED), (mp_obj_t)&pyb_led_type },
331
    { MP_OBJ_NEW_QSTR(MP_QSTR_I2C), (mp_obj_t)&pyb_i2c_type },
Damien George's avatar
Damien George committed
332
    { MP_OBJ_NEW_QSTR(MP_QSTR_SPI), (mp_obj_t)&pyb_spi_type },
Damien George's avatar
Damien George committed
333
    { MP_OBJ_NEW_QSTR(MP_QSTR_UART), (mp_obj_t)&pyb_uart_type },
334
335

    { MP_OBJ_NEW_QSTR(MP_QSTR_ADC), (mp_obj_t)&pyb_adc_type },
336
    { MP_OBJ_NEW_QSTR(MP_QSTR_ADCAll), (mp_obj_t)&pyb_adc_all_type },
Damien George's avatar
Damien George committed
337
338
339

#if MICROPY_HW_ENABLE_DAC
    { MP_OBJ_NEW_QSTR(MP_QSTR_DAC), (mp_obj_t)&pyb_dac_type },
340
341
#endif

342
343
344
#if MICROPY_HW_HAS_MMA7660
    { MP_OBJ_NEW_QSTR(MP_QSTR_Accel), (mp_obj_t)&pyb_accel_type },
#endif
345
346
};

347
348
349
350
351
STATIC const mp_obj_dict_t pyb_module_globals = {
    .base = {&mp_type_dict},
    .map = {
        .all_keys_are_qstrs = 1,
        .table_is_fixed_array = 1,
352
353
        .used = ARRAY_SIZE(pyb_module_globals_table),
        .alloc = ARRAY_SIZE(pyb_module_globals_table),
354
355
        .table = (mp_map_elem_t*)pyb_module_globals_table,
    },
356
357
358
359
360
};

const mp_obj_module_t pyb_module = {
    .base = { &mp_type_module },
    .name = MP_QSTR_pyb,
361
    .globals = (mp_obj_dict_t*)&pyb_module_globals,
362
};