void target_early_init(void)
{
// UART1 on P6.4 (TX) and P2.1 (RX)
// LpcXpresso4337 P4 FTDI header
pin_config(PIN(6,4), PIN_MODE(2) | PIN_PLAIN);
pin_config(PIN(2,1), PIN_MODE(1) | PIN_PLAIN | PIN_INPUT);
}
static void
blink_led(void)
{
int i;
uint16 pins;
pin_config(12, GPIO_DIR_OUT);
pin_config(13, GPIO_DIR_OUT);
pin_config(15, GPIO_DIR_OUT);
pins = BIT12|BIT13|BIT15;
for (i = 1; i < 8; ++i) { // 7 colours
uint16 mask = ((i&4)<<(12-2)) | ((i&2)<<(13-1)) | ((i&1)<<(15-0));
printf(" %d", i);
gpio_output_set(mask, (~mask)&pins, 0, 0);
delay_us(250000);
gpio_output_set(0, mask, 0, 0); // all off
delay_us(250000);
}
printf("\n");
printf("tmr now = %ss\n", time_now_f());
printf("sleeping 2s\n");
system_deep_sleep(2*1000000);
vTaskDelete(NULL);
}
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
void pin_init0(void) {
// assign GPIO10 and GPIO11 to the GPIO peripheral (the default is I2C), so that the I2C bus can
// be assigned safely to any other pins (as recomended by the SDK release notes). Make them
// inputs with pull-downs enabled to ensure they are not floating during LDPS and hibernate.
pin_config ((pin_obj_t *)&pin_GPIO10, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD_PD, PIN_STRENGTH_2MA);
pin_config ((pin_obj_t *)&pin_GPIO11, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD_PD, PIN_STRENGTH_2MA);
}
void pin_assign_pins_af (mp_obj_t *pins, uint32_t n_pins, uint32_t pull, uint32_t fn, uint32_t unit) {
for (int i = 0; i < n_pins; i++) {
pin_free_af_from_pins(fn, unit, i);
if (pins[i] != mp_const_none) {
pin_obj_t *pin = pin_find(pins[i]);
pin_config (pin, pin_find_af_index(pin, fn, unit, i), 0, pull, -1, PIN_STRENGTH_2MA);
}
}
}
STATIC mp_obj_t pin_obj_init_helper(pin_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
// parse args
mp_arg_val_t args[pin_INIT_NUM_ARGS];
mp_arg_parse_all(n_args, pos_args, kw_args, pin_INIT_NUM_ARGS, pin_init_args, args);
// get the io mode
uint mode = args[0].u_int;
pin_validate_mode(mode);
// get the pull type
uint pull;
if (args[1].u_obj == mp_const_none) {
pull = PIN_TYPE_STD;
} else {
pull = mp_obj_get_int(args[1].u_obj);
pin_validate_pull (pull);
}
// get the value
int value = -1;
if (args[2].u_obj != MP_OBJ_NULL) {
if (mp_obj_is_true(args[2].u_obj)) {
value = 1;
} else {
value = 0;
}
}
// get the strenght
uint strength = args[3].u_int;
pin_validate_drive(strength);
// get the alternate function
int af = args[4].u_int;
if (mode != GPIO_DIR_MODE_ALT && mode != GPIO_DIR_MODE_ALT_OD) {
if (af == -1) {
af = 0;
} else {
goto invalid_args;
}
} else if (af < -1 || af > 15) {
goto invalid_args;
}
// check for a valid af and then free it from any other pins
if (af > PIN_MODE_0) {
uint8_t fn, unit, type;
pin_validate_af (self, af, &fn, &unit, &type);
pin_free_af_from_pins(fn, unit, type);
}
pin_config (self, af, mode, pull, value, strength);
return mp_const_none;
invalid_args:
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
}
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
STATIC void pybadc_init (pyb_adc_obj_t *self) {
// configure the pin in analog mode
pin_config (self->pin, -1, PIN_TYPE_ANALOG, PIN_TYPE_STD, -1, PIN_STRENGTH_2MA);
// enable the ADC channel
MAP_ADCChannelEnable(ADC_BASE, self->channel);
// enable and configure the timer
MAP_ADCTimerConfig(ADC_BASE, (1 << 17) - 1);
MAP_ADCTimerEnable(ADC_BASE);
// enable the ADC peripheral
MAP_ADCEnable(ADC_BASE);
}
RX63N_CAN::RX63N_CAN()
{
port = &PORT3;
CANx = &CAN0;
MSTP(CAN0) = 0;
transmission_config();
pin_config();
CAN_MODE_HALT();
default_mailbox_config();
CAN_MODE_TEST(0x3, true); /*Test Mode*/
CAN_MODE_OPERATION();
};
/// \classmethod \constructor(channel)
/// Create an ADC object associated with the given channel.
/// This allows you to then read analog values on that pin.
STATIC mp_obj_t adc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
// check number of arguments
mp_arg_check_num(n_args, n_kw, 1, 1, false);
// the first argument is the channel number
int32_t idx = mp_obj_get_int(args[0]) - 1;
const pin_obj_t *pin;
uint channel;
switch (idx) {
case 0:
channel = ADC_CH_0;
pin = &pin_GP2;
break;
case 1:
channel = ADC_CH_1;
pin = &pin_GP3;
break;
case 2:
channel = ADC_CH_2;
pin = &pin_GP4;
break;
case 3:
channel = ADC_CH_3;
pin = &pin_GP5;
break;
default:
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
break;
}
// disable the callback before re-configuring
pyb_adc_obj_t *self = &pyb_adc_obj[idx];
self->base.type = &pyb_adc_type;
self->channel = channel;
self->idx = idx;
// configure the pin in analog mode
pin_config ((pin_obj_t *)pin, PIN_MODE_0, GPIO_DIR_MODE_IN, PYBPIN_ANALOG_TYPE, PIN_STRENGTH_2MA);
// initialize it
pybadc_init (self);
// register it with the sleep module
pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pybadc_init);
return self;
}
static void gpio_init(void) {
pin_config(PIN_LED, PIN_MODE(0) | PIN_PLAIN);
pin_config(PIN_RESET, PIN_MODE(4) | PIN_PLAIN);
pin_config(PIN_RESET_TXEN, PIN_MODE(4) | PIN_PLAIN);
pin_config(PIN_TMS_TXEN, PIN_MODE(0) | PIN_PLAIN);
pin_config(PIN_TDO, PIN_MODE(6) | PIN_PLAIN | PIN_INPUT | PIN_FAST);
pin_config(PIN_TCK, PIN_MODE(6) | PIN_PLAIN | PIN_FAST);
pin_config(PIN_TDI, PIN_MODE(6) | PIN_PLAIN | PIN_FAST);
pin_config(PIN_TMS, PIN_MODE(6) | PIN_PLAIN | PIN_FAST);
gpio_set(GPIO_LED, 0);
gpio_set(GPIO_RESET, 1);
gpio_set(GPIO_RESET_TXEN, 0);
gpio_set(GPIO_TMS_TXEN, 1);
gpio_config(GPIO_LED, GPIO_OUTPUT);
gpio_config(GPIO_RESET, GPIO_OUTPUT);
gpio_config(GPIO_RESET_TXEN, GPIO_OUTPUT);
gpio_config(GPIO_TMS_TXEN, GPIO_OUTPUT);
}
STATIC mp_obj_t pin_obj_init_helper(pin_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
// parse args
mp_arg_val_t args[pin_INIT_NUM_ARGS];
mp_arg_parse_all(n_args, pos_args, kw_args, pin_INIT_NUM_ARGS, pin_init_args, args);
// get the af
uint af = args[0].u_int;
if (af < PIN_MODE_0 || af > PIN_MODE_15) {
goto invalid_args;
}
// get the io mode
uint mode = args[1].u_int;
// checking the mode only makes sense if af == GPIO
if (af == PIN_MODE_0) {
if (mode != GPIO_DIR_MODE_IN && mode != GPIO_DIR_MODE_OUT) {
goto invalid_args;
}
}
// get the type
uint type = args[2].u_int;
if (type != PIN_TYPE_STD && type != PIN_TYPE_STD_PU && type != PIN_TYPE_STD_PD &&
type != PIN_TYPE_OD && type != PIN_TYPE_OD_PU && type != PIN_TYPE_OD_PD) {
goto invalid_args;
}
// get the strenght
uint strength = args[3].u_int;
if (strength != PIN_STRENGTH_2MA && strength != PIN_STRENGTH_4MA && strength != PIN_STRENGTH_6MA) {
goto invalid_args;
}
// configure the pin as requested
pin_config (self, af, mode, type, strength);
return mp_const_none;
invalid_args:
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
}
STATIC void pin_deassign (pin_obj_t* pin) {
pin_config (pin, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD, -1, PIN_STRENGTH_4MA);
pin->used = false;
}
void TASK_Micropython (void *pvParameters) {
// initialize the garbage collector with the top of our stack
uint32_t sp = gc_helper_get_sp();
gc_collect_init (sp);
bool safeboot = false;
mptask_pre_init();
#ifndef DEBUG
safeboot = PRCMGetSpecialBit(PRCM_SAFE_BOOT_BIT);
#endif
soft_reset:
// GC init
gc_init(&_boot, &_eheap);
// MicroPython init
mp_init();
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_init(mp_sys_argv, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
// execute all basic initializations
mpexception_init0();
mpcallback_init0();
pybsleep_init0();
mperror_init0();
uart_init0();
pin_init0();
timer_init0();
readline_init0();
mod_network_init0();
#if MICROPY_HW_ENABLE_RNG
rng_init0();
#endif
#ifdef LAUNCHXL
// configure the stdio uart pins with the correct alternate functions
// param 3 ("mode") is DON'T CARE" for AFs others than GPIO
pin_config ((pin_obj_t *)&MICROPY_STDIO_UART_TX_PIN, MICROPY_STDIO_UART_TX_PIN_AF, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA);
pin_config ((pin_obj_t *)&MICROPY_STDIO_UART_RX_PIN, MICROPY_STDIO_UART_RX_PIN_AF, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA);
// instantiate the stdio uart
mp_obj_t args[2] = {
mp_obj_new_int(MICROPY_STDIO_UART),
mp_obj_new_int(MICROPY_STDIO_UART_BAUD),
};
pyb_stdio_uart = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args);
// create a callback for the uart, in order to enable the rx interrupts
uart_callback_new (pyb_stdio_uart, mp_const_none, MICROPY_STDIO_UART_RX_BUF_SIZE, INT_PRIORITY_LVL_3);
#else
pyb_stdio_uart = MP_OBJ_NULL;
#endif
pybsleep_reset_cause_t rstcause = pybsleep_get_reset_cause();
if (rstcause < PYB_SLP_SOFT_RESET) {
if (rstcause == PYB_SLP_HIB_RESET) {
// when waking up from hibernate we just want
// to enable simplelink and leave it as is
wlan_first_start();
}
else {
// only if not comming out of hibernate or a soft reset
mptask_enter_ap_mode();
}
// enable telnet and ftp
servers_start();
}
// initialize the serial flash file system
mptask_init_sflash_filesystem();
// append the flash paths to the system path
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash_slash_lib));
// reset config variables; they should be set by boot.py
MP_STATE_PORT(pyb_config_main) = MP_OBJ_NULL;
if (!safeboot) {
// run boot.py
int ret = pyexec_file("boot.py");
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
if (!ret) {
// flash the system led
mperror_signal_error();
}
}
// now we initialise sub-systems that need configuration from boot.py,
// or whose initialisation can be safely deferred until after running
// boot.py.
// at this point everything is fully configured and initialised.
if (!safeboot) {
// run the main script from the current directory.
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
const char *main_py;
if (MP_STATE_PORT(pyb_config_main) == MP_OBJ_NULL) {
main_py = "main.py";
} else {
main_py = mp_obj_str_get_str(MP_STATE_PORT(pyb_config_main));
}
int ret = pyexec_file(main_py);
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
if (!ret) {
// flash the system led
mperror_signal_error();
}
}
}
// main script is finished, so now go into REPL mode.
// the REPL mode can change, or it can request a 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_exit:
// soft reset
pybsleep_signal_soft_reset();
mp_printf(&mp_plat_print, "PYB: soft reboot\n");
// disable all peripherals that could trigger a callback
pyb_rtc_callback_disable(NULL);
timer_disable_all();
uart_disable_all();
// flush the serial flash buffer
sflash_disk_flush();
// clean-up the user socket space
modusocket_close_all_user_sockets();
#if MICROPY_HW_HAS_SDCARD
pybsd_disable();
#endif
// wait for pending transactions to complete
HAL_Delay(20);
goto soft_reset;
}