void ffi_init() {
mp_obj_t m = mp_obj_new_module(QSTR_FROM_STR_STATIC("ffi"));
rt_store_attr(m, MP_QSTR_open, (mp_obj_t)&mod_ffi_open_obj);
rt_store_attr(m, QSTR_FROM_STR_STATIC("callback"), (mp_obj_t)&mod_ffi_callback_obj);
// there would be as_bytes, but bytes currently is value, not reference type!
rt_store_attr(m, QSTR_FROM_STR_STATIC("as_bytearray"), (mp_obj_t)&mod_ffi_as_bytearray_obj);
}
void audio_init(void) {
// DAC peripheral clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
// DAC channel 2 (DAC_OUT2 = PA.5) configuration
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// DAC channel2 Configuration
DAC_InitTypeDef DAC_InitStructure;
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
// Enable DAC Channel2
DAC_Cmd(DAC_Channel_2, ENABLE);
// from now on use DAC_SetChannel2Data to trigger a conversion
sample_buf_in = 0;
sample_buf_out = 0;
// enable interrupt
// Python interface
mp_obj_t m = mp_obj_new_module(qstr_from_str_static("audio"));
rt_store_attr(m, qstr_from_str_static("dac"), rt_make_function_n(1, pyb_audio_dac));
rt_store_attr(m, qstr_from_str_static("is_full"), rt_make_function_n(0, pyb_audio_is_full));
rt_store_attr(m, qstr_from_str_static("fill"), rt_make_function_n(1, pyb_audio_fill));
rt_store_name(qstr_from_str_static("audio"), m);
}
void file_init() {
rt_store_name(MP_QSTR_open, (mp_obj_t)&mp_builtin_open_obj);
mp_obj_t m_sys = mp_obj_new_module(MP_QSTR_sys);
rt_store_attr(m_sys, MP_QSTR_stdin, fdfile_new(STDIN_FILENO));
rt_store_attr(m_sys, MP_QSTR_stdout, fdfile_new(STDOUT_FILENO));
rt_store_attr(m_sys, MP_QSTR_stderr, fdfile_new(STDERR_FILENO));
}
void timer_init(void) {
timer_py_callback = mp_const_none;
// TIM6 clock enable
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE);
// Compute the prescaler value so TIM6 runs at 20kHz
uint16_t PrescalerValue = (uint16_t) ((SystemCoreClock / 2) / 20000) - 1;
// Time base configuration
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Period = 20000; // timer cycles at 1Hz
TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0; // unused for TIM6
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; // unused for TIM6
TIM_TimeBaseInit(TIM6, &TIM_TimeBaseStructure);
// enable perhipheral preload register
TIM_ARRPreloadConfig(TIM6, ENABLE);
// enable interrupt when counter overflows
TIM_ITConfig(TIM6, TIM_IT_Update, ENABLE);
// set up interrupt
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = TIM6_DAC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0f; // lowest priority
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0f; // lowest priority
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// TIM6 enable counter
TIM_Cmd(TIM6, ENABLE);
// Python interface
mp_obj_t m = mp_obj_new_module(qstr_from_str_static("timer"));
rt_store_attr(m, qstr_from_str_static("callback"), rt_make_function_n(1, timer_py_set_callback));
rt_store_attr(m, qstr_from_str_static("period"), rt_make_function_n(1, timer_py_set_period));
rt_store_attr(m, qstr_from_str_static("prescaler"), rt_make_function_n(1, timer_py_set_prescaler));
rt_store_attr(m, qstr_from_str_static("value"), rt_make_function_n(0, timer_py_get_value));
rt_store_name(qstr_from_str_static("timer"), m);
}
void rawsocket_init() {
mp_obj_t m = mp_obj_new_module(MP_QSTR_rawsocket);
rt_store_attr(m, MP_QSTR_socket, (mp_obj_t)&rawsocket_type);
#if MICROPY_SOCKET_EXTRA
rt_store_attr(m, MP_QSTR_sockaddr_in, (mp_obj_t)&sockaddr_in_type);
rt_store_attr(m, MP_QSTR_htons, (mp_obj_t)&mod_socket_htons_obj);
rt_store_attr(m, MP_QSTR_inet_aton, (mp_obj_t)&mod_socket_inet_aton_obj);
rt_store_attr(m, MP_QSTR_gethostbyname, (mp_obj_t)&mod_socket_gethostbyname_obj);
#endif
rt_store_attr(m, MP_QSTR_getaddrinfo, (mp_obj_t)&mod_socket_getaddrinfo_obj);
for (struct sym_entry *p = constants; p->sym != NULL; p++) {
rt_store_attr(m, QSTR_FROM_STR_STATIC(p->sym), MP_OBJ_NEW_SMALL_INT((machine_int_t)p->val));
}
}