STATIC void print_reg(const char *label, uint32_t val) {
char hexStr[9];
mp_hal_stdout_tx_str(label);
mp_hal_stdout_tx_str(fmt_hex(val, hexStr));
mp_hal_stdout_tx_str("\r\n");
}
void HardFault_C_Handler(ExceptionRegisters_t *regs, uint32_t *pXtraRegs) {
if (!pyb_hard_fault_debug) {
NVIC_SystemReset();
}
/* rocky ignore
// We need to disable the USB so it doesn't try to write data out on
// the VCP and then block indefinitely waiting for the buffer to drain.
pyb_usb_flags = 0;
*/
mp_hal_stdout_tx_str("HardFault\r\n");
print_reg("R0 ", regs->r0);
print_reg("R1 ", regs->r1);
print_reg("R2 ", regs->r2);
print_reg("R3 ", regs->r3);
print_reg("R12 ", regs->r12);
print_reg("SP ", (uint32_t)regs);
print_reg("LR ", regs->lr);
print_reg("PC ", regs->pc);
print_reg("XPSR ", regs->xpsr);
print_reg("R4 ", pXtraRegs[7]);
print_reg("R5 ", pXtraRegs[6]);
print_reg("R6 ", pXtraRegs[5]);
print_reg("R7 ", pXtraRegs[4]);
print_reg("R8 ", pXtraRegs[3]);
print_reg("R9 ", pXtraRegs[2]);
print_reg("R10 ", pXtraRegs[1]);
print_reg("R11 ", pXtraRegs[0]);
uint32_t cfsr = SCB->CFSR;
print_reg("HFSR ", SCB->HFSR);
print_reg("CFSR ", cfsr);
if (cfsr & 0x80) {
print_reg("MMFAR ", SCB->MMFAR);
}
if (cfsr & 0x8000) {
print_reg("BFAR ", SCB->BFAR);
}
if ((void*)_RAM_START <= (void*)regs && (void*)regs < (void*)_RAM_END) {
mp_hal_stdout_tx_str("Stack:\r\n");
uint32_t *stack_top = (uint32_t*) _ESTACK;
if ((void*)regs < (void*)_HEAP_END) {
// stack not in static stack area so limit the amount we print
stack_top = (uint32_t*)regs + 32;
}
for (uint32_t *sp = (uint32_t*)regs; sp < stack_top; ++sp) {
print_hex_hex(" ", (uint32_t)sp, *sp);
}
}
/* Go to infinite loop when Hard Fault exception occurs */
__fatal_error("HardFault");
}
STATIC void print_hex_hex(const char *label, uint32_t val1, uint32_t val2) {
char hex_str[9];
mp_hal_stdout_tx_str(label);
mp_hal_stdout_tx_str(fmt_hex(val1, hex_str));
mp_hal_stdout_tx_str(" ");
mp_hal_stdout_tx_str(fmt_hex(val2, hex_str));
mp_hal_stdout_tx_str("\r\n");
}
int pyexec_raw_repl(void) {
vstr_t line;
vstr_init(&line, 32);
raw_repl_reset:
mp_hal_stdout_tx_str("raw REPL; CTRL-B to exit\r\n");
for (;;) {
vstr_reset(&line);
mp_hal_stdout_tx_str(">");
for (;;) {
int c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_A) {
// reset raw REPL
goto raw_repl_reset;
} else if (c == CHAR_CTRL_B) {
// change to friendly REPL
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
return 0;
} else if (c == CHAR_CTRL_C) {
// clear line
vstr_reset(&line);
} else if (c == CHAR_CTRL_D) {
// input finished
break;
} else if (c <= 127) {
// let through any other ASCII character
vstr_add_char(&line, c);
}
}
// indicate reception of command
mp_hal_stdout_tx_str("OK");
if (line.len == 0) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
return PYEXEC_FORCED_EXIT;
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line.buf, line.len, 0);
if (lex == NULL) {
printf("\x04MemoryError\n\x04");
} else {
int ret = parse_compile_execute(lex, MP_PARSE_FILE_INPUT, EXEC_FLAG_PRINT_EOF);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
}
}
void HardFault_C_Handler(ExceptionRegisters_t *regs) {
if (!pyb_hard_fault_debug) {
NVIC_SystemReset();
}
#if MICROPY_HW_ENABLE_USB
// We need to disable the USB so it doesn't try to write data out on
// the VCP and then block indefinitely waiting for the buffer to drain.
pyb_usb_flags = 0;
#endif
mp_hal_stdout_tx_str("HardFault\r\n");
print_reg("R0 ", regs->r0);
print_reg("R1 ", regs->r1);
print_reg("R2 ", regs->r2);
print_reg("R3 ", regs->r3);
print_reg("R12 ", regs->r12);
print_reg("SP ", (uint32_t)regs);
print_reg("LR ", regs->lr);
print_reg("PC ", regs->pc);
print_reg("XPSR ", regs->xpsr);
uint32_t cfsr = SCB->CFSR;
print_reg("HFSR ", SCB->HFSR);
print_reg("CFSR ", cfsr);
if (cfsr & 0x80) {
print_reg("MMFAR ", SCB->MMFAR);
}
if (cfsr & 0x8000) {
print_reg("BFAR ", SCB->BFAR);
}
if ((void*)&_ram_start <= (void*)regs && (void*)regs < (void*)&_ram_end) {
mp_hal_stdout_tx_str("Stack:\r\n");
uint32_t *stack_top = &_estack;
if ((void*)regs < (void*)&_heap_end) {
// stack not in static stack area so limit the amount we print
stack_top = (uint32_t*)regs + 32;
}
for (uint32_t *sp = (uint32_t*)regs; sp < stack_top; ++sp) {
print_hex_hex(" ", (uint32_t)sp, *sp);
}
}
/* Go to infinite loop when Hard Fault exception occurs */
while (1) {
__fatal_error("HardFault");
}
}
STATIC int pyexec_raw_repl_process_char(int c) {
if (c == CHAR_CTRL_A) {
// reset raw REPL
mp_hal_stdout_tx_str("raw REPL; CTRL-B to exit\r\n");
goto reset;
} else if (c == CHAR_CTRL_B) {
// change to friendly REPL
pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
repl.cont_line = false;
pyexec_friendly_repl_process_char(CHAR_CTRL_B);
return 0;
} else if (c == CHAR_CTRL_C) {
// clear line
vstr_reset(&repl.line);
return 0;
} else if (c == CHAR_CTRL_D) {
// input finished
} else {
// let through any other raw 8-bit value
vstr_add_byte(&repl.line, c);
return 0;
}
// indicate reception of command
mp_hal_stdout_tx_str("OK");
if (repl.line.len == 0) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&repl.line);
return PYEXEC_FORCED_EXIT;
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, repl.line.buf, repl.line.len, 0);
if (lex == NULL) {
mp_hal_stdout_tx_str("\x04MemoryError\r\n\x04");
} else {
int ret = parse_compile_execute(lex, MP_PARSE_FILE_INPUT, EXEC_FLAG_PRINT_EOF);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
reset:
vstr_reset(&repl.line);
mp_hal_stdout_tx_str(">");
return 0;
}
int pyexec_raw_repl(void) {
vstr_t line;
vstr_init(&line, 32);
raw_repl_reset:
mp_hal_stdout_tx_str("raw REPL; CTRL-B to exit\r\n");
for (;;) {
vstr_reset(&line);
mp_hal_stdout_tx_str(">");
for (;;) {
int c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_A) {
// reset raw REPL
goto raw_repl_reset;
} else if (c == CHAR_CTRL_B) {
// change to friendly REPL
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
return 0;
} else if (c == CHAR_CTRL_C) {
// clear line
vstr_reset(&line);
} else if (c == CHAR_CTRL_D) {
// input finished
break;
} else {
// let through any other raw 8-bit value
vstr_add_byte(&line, c);
}
}
// indicate reception of command
mp_hal_stdout_tx_str("OK");
if (line.len == 0) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
return PYEXEC_FORCED_EXIT;
}
int ret = parse_compile_execute(&line, MP_PARSE_FILE_INPUT, EXEC_FLAG_PRINT_EOF | EXEC_FLAG_SOURCE_IS_VSTR);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
}
void init_done(void) {
#if MICROPY_REPL_EVENT_DRIVEN
uart_task_init();
#endif
mp_reset();
mp_hal_stdout_tx_str("\r\n");
#if MICROPY_REPL_EVENT_DRIVEN
pyexec_event_repl_init();
#endif
dupterm_task_init();
#if !MICROPY_REPL_EVENT_DRIVEN
soft_reset:
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
soft_reset();
goto soft_reset;
#endif
}
void init_done(void) {
// Configure sleep, and put the radio to sleep if no interfaces are active
wifi_fpm_set_sleep_type(MODEM_SLEEP_T);
if (wifi_get_opmode() == NULL_MODE) {
wifi_fpm_open();
wifi_fpm_do_sleep(0xfffffff);
}
#if MICROPY_REPL_EVENT_DRIVEN
uart_task_init();
#endif
mp_reset();
mp_hal_stdout_tx_str("\r\n");
#if MICROPY_REPL_EVENT_DRIVEN
pyexec_event_repl_init();
#endif
#if !MICROPY_REPL_EVENT_DRIVEN
soft_reset:
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
soft_reset();
goto soft_reset;
#endif
}
STATIC int do_repl(void) {
mp_hal_stdout_tx_str("Micro Python " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_PY_SYS_PLATFORM " version\n");
for (;;) {
char *line = prompt(">>> ");
if (line == NULL) {
// EOF
return 0;
}
while (mp_repl_continue_with_input(line)) {
char *line2 = prompt("... ");
if (line2 == NULL) {
break;
}
char *line3 = strjoin(line, '\n', line2);
free(line);
free(line2);
line = line3;
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
int ret = execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, true);
if (ret & FORCED_EXIT) {
return ret;
}
free(line);
}
}
void soft_reset(void) {
mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
mp_hal_delay_us(10000); // allow UART to flush output
mp_reset();
#if MICROPY_REPL_EVENT_DRIVEN
pyexec_event_repl_init();
#endif
}
STATIC int pyexec_raw_repl_process_char(int c) {
if (c == CHAR_CTRL_A) {
// reset raw REPL
mp_hal_stdout_tx_str("raw REPL; CTRL-B to exit\r\n");
goto reset;
} else if (c == CHAR_CTRL_B) {
// change to friendly REPL
pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
vstr_reset(MP_STATE_VM(repl_line));
repl.cont_line = false;
pyexec_friendly_repl_process_char(CHAR_CTRL_B);
return 0;
} else if (c == CHAR_CTRL_C) {
// clear line
vstr_reset(MP_STATE_VM(repl_line));
return 0;
} else if (c == CHAR_CTRL_D) {
// input finished
} else {
// let through any other raw 8-bit value
vstr_add_byte(MP_STATE_VM(repl_line), c);
return 0;
}
// indicate reception of command
mp_hal_stdout_tx_str("OK");
if (MP_STATE_VM(repl_line)->len == 0) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(MP_STATE_VM(repl_line));
return PYEXEC_FORCED_EXIT;
}
int ret = parse_compile_execute(MP_STATE_VM(repl_line), MP_PARSE_FILE_INPUT, EXEC_FLAG_PRINT_EOF | EXEC_FLAG_SOURCE_IS_VSTR);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
reset:
vstr_reset(MP_STATE_VM(repl_line));
mp_hal_stdout_tx_str(">");
return 0;
}
void mp_run(void) {
int stack_dummy;
stack_top = (char*)&stack_dummy;
mp_stack_ctrl_init();
mp_stack_set_limit(1800); // stack is 2k
// allocate the heap statically in the bss
static uint32_t heap[9820 / 4];
gc_init(heap, (uint8_t*)heap + sizeof(heap));
/*
// allocate the heap using system malloc
extern void *malloc(int);
void *mheap = malloc(2000);
gc_init(mheap, (byte*)mheap + 2000);
*/
/*
// allocate the heap statically (will clash with BLE)
gc_init((void*)0x20000100, (void*)0x20002000);
*/
mp_init();
mp_hal_init();
readline_init0();
microbit_init();
if (APPENDED_SCRIPT->header[0] == 'M' && APPENDED_SCRIPT->header[1] == 'P') {
// run appended script
do_strn(APPENDED_SCRIPT->str, APPENDED_SCRIPT->len);
} else if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
// from microbit import *
mp_import_all(mp_import_name(MP_QSTR_microbit, mp_const_empty_tuple, MP_OBJ_NEW_SMALL_INT(0)));
}
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
mp_hal_stdout_tx_str("soft reboot\r\n");
memset(&MP_STATE_PORT(async_data)[0], 0, sizeof(MP_STATE_PORT(async_data)));
MP_STATE_PORT(async_music_data) = NULL;
mp_deinit();
}
void mp_task(void *pvParameter) {
volatile uint32_t sp = (uint32_t)get_sp();
#if MICROPY_PY_THREAD
mp_thread_init(&mp_task_stack[0], MP_TASK_STACK_LEN);
#endif
uart_init();
soft_reset:
// initialise the stack pointer for the main thread
mp_stack_set_top((void *)sp);
mp_stack_set_limit(MP_TASK_STACK_SIZE - 1024);
gc_init(mp_task_heap, mp_task_heap + sizeof(mp_task_heap));
mp_init();
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
mp_obj_list_init(mp_sys_argv, 0);
readline_init0();
// initialise peripherals
machine_pins_init();
// run boot-up scripts
pyexec_frozen_module("_boot.py");
pyexec_file("boot.py");
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
pyexec_file("main.py");
}
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
#if MICROPY_PY_THREAD
mp_thread_deinit();
#endif
mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
// deinitialise peripherals
machine_pins_deinit();
mp_deinit();
fflush(stdout);
goto soft_reset;
}
STATIC int do_repl(void) {
mp_hal_stdout_tx_str("MicroPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; "
MICROPY_PY_SYS_PLATFORM " version\nUse Ctrl-D to exit, Ctrl-E for paste mode\n");
#if MICROPY_USE_READLINE == 1
// use MicroPython supplied readline
vstr_t line;
vstr_init(&line, 16);
for (;;) {
mp_hal_stdio_mode_raw();
input_restart:
vstr_reset(&line);
int ret = readline(&line, ">>> ");
mp_parse_input_kind_t parse_input_kind = MP_PARSE_SINGLE_INPUT;
if (ret == CHAR_CTRL_C) {
// cancel input
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// EOF
printf("\n");
mp_hal_stdio_mode_orig();
vstr_clear(&line);
return 0;
} else if (ret == CHAR_CTRL_E) {
// paste mode
mp_hal_stdout_tx_str("\npaste mode; Ctrl-C to cancel, Ctrl-D to finish\n=== ");
vstr_reset(&line);
for (;;) {
char c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\n");
goto input_restart;
} else if (c == CHAR_CTRL_D) {
// end of input
mp_hal_stdout_tx_str("\n");
break;
} else {
// add char to buffer and echo
vstr_add_byte(&line, c);
if (c == '\r') {
mp_hal_stdout_tx_str("\n=== ");
} else {
mp_hal_stdout_tx_strn(&c, 1);
}
}
}
parse_input_kind = MP_PARSE_FILE_INPUT;
} else if (line.len == 0) {
if (ret != 0) {
printf("\n");
}
goto input_restart;
} else {
// got a line with non-zero length, see if it needs continuing
while (mp_repl_continue_with_input(vstr_null_terminated_str(&line))) {
vstr_add_byte(&line, '\n');
ret = readline(&line, "... ");
if (ret == CHAR_CTRL_C) {
// cancel everything
printf("\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
break;
}
}
}
mp_hal_stdio_mode_orig();
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line.buf, line.len, false);
ret = execute_from_lexer(lex, parse_input_kind, true);
if (ret & FORCED_EXIT) {
return ret;
}
}
#else
// use GNU or simple readline
for (;;) {
char *line = prompt(">>> ");
if (line == NULL) {
// EOF
return 0;
}
while (mp_repl_continue_with_input(line)) {
char *line2 = prompt("... ");
if (line2 == NULL) {
break;
}
char *line3 = strjoin(line, '\n', line2);
free(line);
free(line2);
line = line3;
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
int ret = execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, true);
if (ret & FORCED_EXIT) {
return ret;
}
free(line);
}
#endif
}
void pyexec_friendly_repl_init(void) {
vstr_init(&repl.line, 32);
repl.cont_line = false;
readline_init(&repl.line);
mp_hal_stdout_tx_str(">>> ");
}
void soft_reset(void) {
mp_hal_stdout_tx_str("PYB: soft reset\r\n");
mp_hal_delay_us(10000); // allow UART to flush output
mp_reset();
pyexec_event_repl_init();
}
int pyexec_friendly_repl(void) {
vstr_t line;
vstr_init(&line, 32);
#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
// in host mode, we enable the LCD for the repl
mp_obj_t lcd_o = mp_call_function_0(mp_load_name(qstr_from_str("LCD")));
mp_call_function_1(mp_load_attr(lcd_o, qstr_from_str("light")), mp_const_true);
#endif
friendly_repl_reset:
mp_hal_stdout_tx_str("MicroPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME "\r\n");
#if MICROPY_PY_BUILTINS_HELP
mp_hal_stdout_tx_str("Type \"help()\" for more information.\r\n");
#endif
// to test ctrl-C
/*
{
uint32_t x[4] = {0x424242, 0xdeaddead, 0x242424, 0xdeadbeef};
for (;;) {
nlr_buf_t nlr;
printf("pyexec_repl: %p\n", x);
mp_hal_set_interrupt_char(CHAR_CTRL_C);
if (nlr_push(&nlr) == 0) {
for (;;) {
}
} else {
printf("break\n");
}
}
}
*/
for (;;) {
input_restart:
#if defined(USE_DEVICE_MODE)
if (usb_vcp_is_enabled()) {
// If the user gets to here and interrupts are disabled then
// they'll never see the prompt, traceback etc. The USB REPL needs
// interrupts to be enabled or no transfers occur. So we try to
// do the user a favor and reenable interrupts.
if (query_irq() == IRQ_STATE_DISABLED) {
enable_irq(IRQ_STATE_ENABLED);
mp_hal_stdout_tx_str("PYB: enabling IRQs\r\n");
}
}
#endif
vstr_reset(&line);
int ret = readline(&line, ">>> ");
mp_parse_input_kind_t parse_input_kind = MP_PARSE_SINGLE_INPUT;
if (ret == CHAR_CTRL_A) {
// change to raw REPL
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
return 0;
} else if (ret == CHAR_CTRL_B) {
// reset friendly REPL
mp_hal_stdout_tx_str("\r\n");
goto friendly_repl_reset;
} else if (ret == CHAR_CTRL_C) {
// break
mp_hal_stdout_tx_str("\r\n");
continue;
} else if (ret == CHAR_CTRL_D) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
return PYEXEC_FORCED_EXIT;
} else if (ret == CHAR_CTRL_E) {
// paste mode
mp_hal_stdout_tx_str("\r\npaste mode; Ctrl-C to cancel, Ctrl-D to finish\r\n=== ");
vstr_reset(&line);
for (;;) {
char c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (c == CHAR_CTRL_D) {
// end of input
mp_hal_stdout_tx_str("\r\n");
break;
} else {
// add char to buffer and echo
vstr_add_byte(&line, c);
if (c == '\r') {
mp_hal_stdout_tx_str("\r\n=== ");
} else {
mp_hal_stdout_tx_strn(&c, 1);
}
}
}
parse_input_kind = MP_PARSE_FILE_INPUT;
} else if (vstr_len(&line) == 0) {
continue;
} else {
// got a line with non-zero length, see if it needs continuing
while (mp_repl_continue_with_input(vstr_null_terminated_str(&line))) {
vstr_add_byte(&line, '\n');
ret = readline(&line, "... ");
if (ret == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
break;
}
}
}
ret = parse_compile_execute(&line, parse_input_kind, EXEC_FLAG_ALLOW_DEBUGGING | EXEC_FLAG_IS_REPL | EXEC_FLAG_SOURCE_IS_VSTR);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
}
STATIC int pyexec_friendly_repl_process_char(int c) {
int ret = readline_process_char(c);
if (!repl.cont_line) {
if (ret == CHAR_CTRL_A) {
// change to raw REPL
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
mp_hal_stdout_tx_str("\r\n");
pyexec_raw_repl_process_char(CHAR_CTRL_A);
return 0;
} else if (ret == CHAR_CTRL_B) {
// reset friendly REPL
mp_hal_stdout_tx_str("\r\n");
mp_hal_stdout_tx_str("MicroPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME "\r\n");
#if MICROPY_PY_BUILTINS_HELP
mp_hal_stdout_tx_str("Type \"help()\" for more information.\r\n");
#endif
goto input_restart;
} else if (ret == CHAR_CTRL_C) {
// break
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(MP_STATE_VM(repl_line));
return PYEXEC_FORCED_EXIT;
}
if (ret < 0) {
return 0;
}
if (!mp_repl_continue_with_input(vstr_null_terminated_str(MP_STATE_VM(repl_line)))) {
goto exec;
}
vstr_add_byte(MP_STATE_VM(repl_line), '\n');
repl.cont_line = true;
readline_note_newline("... ");
return 0;
} else {
if (ret == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
repl.cont_line = false;
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
goto exec;
}
if (ret < 0) {
return 0;
}
if (mp_repl_continue_with_input(vstr_null_terminated_str(MP_STATE_VM(repl_line)))) {
vstr_add_byte(MP_STATE_VM(repl_line), '\n');
readline_note_newline("... ");
return 0;
}
exec: ;
int ret = parse_compile_execute(MP_STATE_VM(repl_line), MP_PARSE_SINGLE_INPUT, EXEC_FLAG_ALLOW_DEBUGGING | EXEC_FLAG_IS_REPL | EXEC_FLAG_SOURCE_IS_VSTR);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
input_restart:
vstr_reset(MP_STATE_VM(repl_line));
repl.cont_line = false;
readline_init(MP_STATE_VM(repl_line), ">>> ");
return 0;
}
}
void init_done(void) {
mp_reset();
mp_hal_stdout_tx_str("\r\n");
pyexec_event_repl_init();
uart_task_init();
}
void mp_task(void *pvParameter) {
volatile uint32_t sp = (uint32_t)get_sp();
#if MICROPY_PY_THREAD
mp_thread_init(&mp_task_stack[0], MP_TASK_STACK_LEN);
#endif
uart_init();
// Allocate the uPy heap using malloc and get the largest available region
size_t mp_task_heap_size = heap_caps_get_largest_free_block(MALLOC_CAP_8BIT);
void *mp_task_heap = malloc(mp_task_heap_size);
soft_reset:
// initialise the stack pointer for the main thread
mp_stack_set_top((void *)sp);
mp_stack_set_limit(MP_TASK_STACK_SIZE - 1024);
gc_init(mp_task_heap, mp_task_heap + mp_task_heap_size);
mp_init();
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
mp_obj_list_init(mp_sys_argv, 0);
readline_init0();
// initialise peripherals
machine_pins_init();
// run boot-up scripts
pyexec_frozen_module("_boot.py");
pyexec_file("boot.py");
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
pyexec_file("main.py");
}
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
vprintf_like_t vprintf_log = esp_log_set_vprintf(vprintf_null);
if (pyexec_raw_repl() != 0) {
break;
}
esp_log_set_vprintf(vprintf_log);
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
#if MICROPY_PY_THREAD
mp_thread_deinit();
#endif
gc_sweep_all();
mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
// deinitialise peripherals
machine_pins_deinit();
usocket_events_deinit();
mp_deinit();
fflush(stdout);
goto soft_reset;
}
int pyexec_friendly_repl_process_char(int c) {
int ret = readline_process_char(c);
if (!repl.cont_line) {
if (ret == CHAR_CTRL_A) {
// change to raw REPL
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&repl.line);
return PYEXEC_SWITCH_MODE;
} else if (ret == CHAR_CTRL_B) {
// reset friendly REPL
mp_hal_stdout_tx_str("\r\n");
goto friendly_repl_reset;
} else if (ret == CHAR_CTRL_C) {
// break
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&repl.line);
return PYEXEC_FORCED_EXIT;
} else if (vstr_len(&repl.line) == 0) {
//goto input_restart;
}
if (ret < 0) {
return 0;
}
if (!mp_repl_continue_with_input(vstr_null_terminated_str(&repl.line))) {
goto exec;
}
vstr_add_byte(&repl.line, '\n');
repl.cont_line = true;
mp_hal_stdout_tx_str("... ");
readline_note_newline();
return 0;
} else {
if (ret == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
repl.cont_line = false;
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
goto exec;
}
if (ret < 0) {
return 0;
}
if (mp_repl_continue_with_input(vstr_null_terminated_str(&repl.line))) {
vstr_add_byte(&repl.line, '\n');
mp_hal_stdout_tx_str("... ");
readline_note_newline();
return 0;
}
exec: ;
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr_str(&repl.line), vstr_len(&repl.line), 0);
if (lex == NULL) {
printf("MemoryError\n");
} else {
int ret = parse_compile_execute(lex, MP_PARSE_SINGLE_INPUT, EXEC_FLAG_ALLOW_DEBUGGING | EXEC_FLAG_IS_REPL);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
friendly_repl_reset: // TODO
input_restart:
pyexec_friendly_repl_reset();
mp_hal_stdout_tx_str(">>> ");
return 0;
}
}
int pyexec_friendly_repl(void) {
vstr_t line;
vstr_init(&line, 32);
#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
// in host mode, we enable the LCD for the repl
mp_obj_t lcd_o = mp_call_function_0(mp_load_name(qstr_from_str("LCD")));
mp_call_function_1(mp_load_attr(lcd_o, qstr_from_str("light")), mp_const_true);
#endif
friendly_repl_reset:
mp_hal_stdout_tx_str("Micro Python " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME "\r\n");
mp_hal_stdout_tx_str("Type \"help()\" for more information.\r\n");
// to test ctrl-C
/*
{
uint32_t x[4] = {0x424242, 0xdeaddead, 0x242424, 0xdeadbeef};
for (;;) {
nlr_buf_t nlr;
printf("pyexec_repl: %p\n", x);
mp_hal_set_interrupt_char(CHAR_CTRL_C);
if (nlr_push(&nlr) == 0) {
for (;;) {
}
} else {
printf("break\n");
}
}
}
*/
for (;;) {
input_restart:
vstr_reset(&line);
int ret = readline(&line, ">>> ");
if (ret == CHAR_CTRL_A) {
// change to raw REPL
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
return 0;
} else if (ret == CHAR_CTRL_B) {
// reset friendly REPL
mp_hal_stdout_tx_str("\r\n");
goto friendly_repl_reset;
} else if (ret == CHAR_CTRL_C) {
// break
mp_hal_stdout_tx_str("\r\n");
continue;
} else if (ret == CHAR_CTRL_D) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
return PYEXEC_FORCED_EXIT;
} else if (vstr_len(&line) == 0) {
continue;
}
while (mp_repl_continue_with_input(vstr_null_terminated_str(&line))) {
vstr_add_byte(&line, '\n');
ret = readline(&line, "... ");
if (ret == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
break;
}
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr_str(&line), vstr_len(&line), 0);
if (lex == NULL) {
printf("MemoryError\n");
} else {
ret = parse_compile_execute(lex, MP_PARSE_SINGLE_INPUT, EXEC_FLAG_ALLOW_DEBUGGING | EXEC_FLAG_IS_REPL);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
}
}
