From 0fdb5a032f6686ab3f7d29fcf649a2f9f7480b41 Mon Sep 17 00:00:00 2001 From: Hierophect Date: Thu, 15 Aug 2019 15:12:50 -0400 Subject: [PATCH] Text fixes --- ports/stm32f4/common-hal/busio/SPI.c | 244 +------------------- ports/stm32f4/common-hal/busio/UART.c | 309 +------------------------- 2 files changed, 12 insertions(+), 541 deletions(-) diff --git a/ports/stm32f4/common-hal/busio/SPI.c b/ports/stm32f4/common-hal/busio/SPI.c index a8b9199842..dfb436fb93 100644 --- a/ports/stm32f4/common-hal/busio/SPI.c +++ b/ports/stm32f4/common-hal/busio/SPI.c @@ -34,215 +34,24 @@ void common_hal_busio_spi_construct(busio_spi_obj_t *self, const mcu_pin_obj_t * clock, const mcu_pin_obj_t * mosi, const mcu_pin_obj_t * miso) { - // Sercom* sercom = NULL; - // uint8_t sercom_index; - // uint32_t clock_pinmux = 0; - // bool mosi_none = mosi == mp_const_none || mosi == NULL; - // bool miso_none = miso == mp_const_none || miso == NULL; - // uint32_t mosi_pinmux = 0; - // uint32_t miso_pinmux = 0; - // uint8_t clock_pad = 0; - // uint8_t mosi_pad = 0; - // uint8_t miso_pad = 0; - // uint8_t dopo = 255; - - // // Special case for SAMR boards. - // #ifdef PIN_PC19 - // if (miso == &pin_PC19) { - // if (mosi == &pin_PB30 && clock == &pin_PC18) { - // sercom = SERCOM4; - // sercom_index = 4; - // clock_pinmux = MUX_F; - // mosi_pinmux = MUX_F; - // miso_pinmux = MUX_F; - // clock_pad = 3; - // mosi_pad = 2; - // miso_pad = 0; - // dopo = samd_peripherals_get_spi_dopo(clock_pad, mosi_pad); - // } - // // Error, leave SERCOM unset to throw an exception later. - // } else { - // #endif - // for (int i = 0; i < NUM_SERCOMS_PER_PIN; i++) { - // sercom_index = clock->sercom[i].index; // 2 for SERCOM2, etc. - // if (sercom_index >= SERCOM_INST_NUM) { - // continue; - // } - // Sercom* potential_sercom = sercom_insts[sercom_index]; - // if ( - // #if defined(MICROPY_HW_APA102_SCK) && defined(MICROPY_HW_APA102_MOSI) && !defined(CIRCUITPY_BITBANG_APA102) - // (potential_sercom->SPI.CTRLA.bit.ENABLE != 0 && - // potential_sercom != status_apa102.spi_desc.dev.prvt && - // !apa102_sck_in_use)) { - // #else - // potential_sercom->SPI.CTRLA.bit.ENABLE != 0) { - // #endif - // continue; - // } - // clock_pinmux = PINMUX(clock->number, (i == 0) ? MUX_C : MUX_D); - // clock_pad = clock->sercom[i].pad; - // if (!samd_peripherals_valid_spi_clock_pad(clock_pad)) { - // continue; - // } - // for (int j = 0; j < NUM_SERCOMS_PER_PIN; j++) { - // if (!mosi_none) { - // if (sercom_index == mosi->sercom[j].index) { - // mosi_pinmux = PINMUX(mosi->number, (j == 0) ? MUX_C : MUX_D); - // mosi_pad = mosi->sercom[j].pad; - // dopo = samd_peripherals_get_spi_dopo(clock_pad, mosi_pad); - // if (dopo > 0x3) { - // continue; // pad combination not possible - // } - // if (miso_none) { - // sercom = potential_sercom; - // break; - // } - // } else { - // continue; - // } - // } - // if (!miso_none) { - // for (int k = 0; k < NUM_SERCOMS_PER_PIN; k++) { - // if (sercom_index == miso->sercom[k].index) { - // miso_pinmux = PINMUX(miso->number, (k == 0) ? MUX_C : MUX_D); - // miso_pad = miso->sercom[k].pad; - // sercom = potential_sercom; - // break; - // } - // } - // } - // if (sercom != NULL) { - // break; - // } - // } - // if (sercom != NULL) { - // break; - // } - // } - // #ifdef PIN_PC19 - // } - // #endif - // if (sercom == NULL) { - // mp_raise_ValueError(translate("Invalid pins")); - // } - - // // Set up SPI clocks on SERCOM. - // samd_peripherals_sercom_clock_init(sercom, sercom_index); - - // #if defined(MICROPY_HW_APA102_SCK) && defined(MICROPY_HW_APA102_MOSI) && !defined(CIRCUITPY_BITBANG_APA102) - // // if we're re-using the dotstar sercom, make sure it is disabled or the init will fail out - // hri_sercomspi_clear_CTRLA_ENABLE_bit(sercom); - // #endif - // if (spi_m_sync_init(&self->spi_desc, sercom) != ERR_NONE) { - // mp_raise_OSError(MP_EIO); - // } - - // // Pads must be set after spi_m_sync_init(), which uses default values from - // // the prototypical SERCOM. - // hri_sercomspi_write_CTRLA_DOPO_bf(sercom, dopo); - // hri_sercomspi_write_CTRLA_DIPO_bf(sercom, miso_pad); - - // // Always start at 250khz which is what SD cards need. They are sensitive to - // // SPI bus noise before they are put into SPI mode. - // uint8_t baud_value = samd_peripherals_spi_baudrate_to_baud_reg_value(250000); - // if (spi_m_sync_set_baudrate(&self->spi_desc, baud_value) != ERR_NONE) { - // // spi_m_sync_set_baudrate does not check for validity, just whether the device is - // // busy or not - // mp_raise_OSError(MP_EIO); - // } - - // gpio_set_pin_direction(clock->number, GPIO_DIRECTION_OUT); - // gpio_set_pin_pull_mode(clock->number, GPIO_PULL_OFF); - // gpio_set_pin_function(clock->number, clock_pinmux); - // claim_pin(clock); - // self->clock_pin = clock->number; - - // if (mosi_none) { - // self->MOSI_pin = NO_PIN; - // } else { - // gpio_set_pin_direction(mosi->number, GPIO_DIRECTION_OUT); - // gpio_set_pin_pull_mode(mosi->number, GPIO_PULL_OFF); - // gpio_set_pin_function(mosi->number, mosi_pinmux); - // self->MOSI_pin = mosi->number; - // claim_pin(mosi); - // } - - // if (miso_none) { - // self->MISO_pin = NO_PIN; - // } else { - // gpio_set_pin_direction(miso->number, GPIO_DIRECTION_IN); - // gpio_set_pin_pull_mode(miso->number, GPIO_PULL_OFF); - // gpio_set_pin_function(miso->number, miso_pinmux); - // self->MISO_pin = miso->number; - // claim_pin(miso); - // } - - // spi_m_sync_enable(&self->spi_desc); } void common_hal_busio_spi_never_reset(busio_spi_obj_t *self) { - // never_reset_sercom(self->spi_desc.dev.prvt); - - // never_reset_pin_number(self->clock_pin); - // never_reset_pin_number(self->MOSI_pin); - // never_reset_pin_number(self->MISO_pin); } bool common_hal_busio_spi_deinited(busio_spi_obj_t *self) { - //return self->clock_pin == NO_PIN; } void common_hal_busio_spi_deinit(busio_spi_obj_t *self) { - // if (common_hal_busio_spi_deinited(self)) { - // return; - // } - // allow_reset_sercom(self->spi_desc.dev.prvt); - - // spi_m_sync_disable(&self->spi_desc); - // spi_m_sync_deinit(&self->spi_desc); - // reset_pin_number(self->clock_pin); - // reset_pin_number(self->MOSI_pin); - // reset_pin_number(self->MISO_pin); - // self->clock_pin = NO_PIN; } bool common_hal_busio_spi_configure(busio_spi_obj_t *self, uint32_t baudrate, uint8_t polarity, uint8_t phase, uint8_t bits) { - // uint8_t baud_reg_value = samd_peripherals_spi_baudrate_to_baud_reg_value(baudrate); - - // void * hw = self->spi_desc.dev.prvt; - // // If the settings are already what we want then don't reset them. - // if (hri_sercomspi_get_CTRLA_CPHA_bit(hw) == phase && - // hri_sercomspi_get_CTRLA_CPOL_bit(hw) == polarity && - // hri_sercomspi_read_CTRLB_CHSIZE_bf(hw) == ((uint32_t)bits - 8) && - // hri_sercomspi_read_BAUD_BAUD_bf(hw) == baud_reg_value) { - // return true; - // } - - // // Disable, set values (most or all are enable-protected), and re-enable. - // spi_m_sync_disable(&self->spi_desc); - // hri_sercomspi_wait_for_sync(hw, SERCOM_SPI_SYNCBUSY_MASK); - - // hri_sercomspi_write_CTRLA_CPHA_bit(hw, phase); - // hri_sercomspi_write_CTRLA_CPOL_bit(hw, polarity); - // hri_sercomspi_write_CTRLB_CHSIZE_bf(hw, bits - 8); - // hri_sercomspi_write_BAUD_BAUD_bf(hw, baud_reg_value); - // hri_sercomspi_wait_for_sync(hw, SERCOM_SPI_SYNCBUSY_MASK); - - // spi_m_sync_enable(&self->spi_desc); - // hri_sercomspi_wait_for_sync(hw, SERCOM_SPI_SYNCBUSY_MASK); - return true; } bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) { bool grabbed_lock = false; - // CRITICAL_SECTION_ENTER() - // if (!self->has_lock) { - // grabbed_lock = true; - // self->has_lock = true; - // } - // CRITICAL_SECTION_LEAVE(); return grabbed_lock; } @@ -256,66 +65,25 @@ void common_hal_busio_spi_unlock(busio_spi_obj_t *self) { bool common_hal_busio_spi_write(busio_spi_obj_t *self, const uint8_t *data, size_t len) { - // if (len == 0) { - // return true; - // } - // int32_t status; - // if (len >= 16) { - // status = sercom_dma_write(self->spi_desc.dev.prvt, data, len); - // } else { - // struct io_descriptor *spi_io; - // spi_m_sync_get_io_descriptor(&self->spi_desc, &spi_io); - // status = spi_io->write(spi_io, data, len); - // } - return 0;//status >= 0; // Status is number of chars read or an error code < 0. + return 0; } bool common_hal_busio_spi_read(busio_spi_obj_t *self, uint8_t *data, size_t len, uint8_t write_value) { - // if (len == 0) { - // return true; - // } - // int32_t status; - // if (len >= 16) { - // status = sercom_dma_read(self->spi_desc.dev.prvt, data, len, write_value); - // } else { - // self->spi_desc.dev.dummy_byte = write_value; - - // struct io_descriptor *spi_io; - // spi_m_sync_get_io_descriptor(&self->spi_desc, &spi_io); - - // status = spi_io->read(spi_io, data, len); - // } - return 0;//status >= 0; // Status is number of chars read or an error code < 0. + return 0; } bool common_hal_busio_spi_transfer(busio_spi_obj_t *self, uint8_t *data_out, uint8_t *data_in, size_t len) { - // if (len == 0) { - // return true; - // } - // int32_t status; - // if (len >= 16) { - // status = sercom_dma_transfer(self->spi_desc.dev.prvt, data_out, data_in, len); - // } else { - // struct spi_xfer xfer; - // xfer.txbuf = data_out; - // xfer.rxbuf = data_in; - // xfer.size = len; - // status = spi_m_sync_transfer(&self->spi_desc, &xfer); - // } - return 0;//status >= 0; // Status is number of chars read or an error code < 0. + return 0; } uint32_t common_hal_busio_spi_get_frequency(busio_spi_obj_t* self) { - return 0;//samd_peripherals_spi_baud_reg_value_to_baudrate(hri_sercomspi_read_BAUD_reg(self->spi_desc.dev.prvt)); + return 0; } uint8_t common_hal_busio_spi_get_phase(busio_spi_obj_t* self) { - //void * hw = self->spi_desc.dev.prvt; - return 0;//hri_sercomspi_get_CTRLA_CPHA_bit(hw); + return 0; } uint8_t common_hal_busio_spi_get_polarity(busio_spi_obj_t* self) { - //void * hw = self->spi_desc.dev.prvt; - return 0;//hri_sercomspi_get_CTRLA_CPOL_bit(hw); -} + return 0; diff --git a/ports/stm32f4/common-hal/busio/UART.c b/ports/stm32f4/common-hal/busio/UART.c index 86035c3bae..32653ab8b5 100644 --- a/ports/stm32f4/common-hal/busio/UART.c +++ b/ports/stm32f4/common-hal/busio/UART.c @@ -41,336 +41,39 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self, const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx, uint32_t baudrate, uint8_t bits, uart_parity_t parity, uint8_t stop, mp_float_t timeout, uint16_t receiver_buffer_size) { - - // Sercom* sercom = NULL; - // uint8_t sercom_index = 255; // Unset index - // uint32_t rx_pinmux = 0; - // uint8_t rx_pad = 255; // Unset pad - // uint32_t tx_pinmux = 0; - // uint8_t tx_pad = 255; // Unset pad - - // if (bits > 8) { - // mp_raise_NotImplementedError(translate("bytes > 8 bits not supported")); - // } - - // bool have_tx = tx != mp_const_none; - // bool have_rx = rx != mp_const_none; - // if (!have_tx && !have_rx) { - // mp_raise_ValueError(translate("tx and rx cannot both be None")); - // } - - // self->baudrate = baudrate; - // self->character_bits = bits; - // self->timeout_ms = timeout * 1000; - - // // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - - // for (int i = 0; i < NUM_SERCOMS_PER_PIN; i++) { - // Sercom* potential_sercom = NULL; - // if (have_tx) { - // sercom_index = tx->sercom[i].index; - // if (sercom_index >= SERCOM_INST_NUM) { - // continue; - // } - // potential_sercom = sercom_insts[sercom_index]; - // if (potential_sercom->USART.CTRLA.bit.ENABLE != 0 || - // !(tx->sercom[i].pad == 0 || - // tx->sercom[i].pad == 2)) { - // continue; - // } - // tx_pinmux = PINMUX(tx->number, (i == 0) ? MUX_C : MUX_D); - // tx_pad = tx->sercom[i].pad; - // if (rx == mp_const_none) { - // sercom = potential_sercom; - // break; - // } - // } - // for (int j = 0; j < NUM_SERCOMS_PER_PIN; j++) { - // if (((!have_tx && rx->sercom[j].index < SERCOM_INST_NUM && - // sercom_insts[rx->sercom[j].index]->USART.CTRLA.bit.ENABLE == 0) || - // sercom_index == rx->sercom[j].index) && - // rx->sercom[j].pad != tx_pad) { - // rx_pinmux = PINMUX(rx->number, (j == 0) ? MUX_C : MUX_D); - // rx_pad = rx->sercom[j].pad; - // sercom = sercom_insts[rx->sercom[j].index]; - // sercom_index = rx->sercom[j].index; - // break; - // } - // } - // if (sercom != NULL) { - // break; - // } - // } - // if (sercom == NULL) { - // mp_raise_ValueError(translate("Invalid pins")); - // } - // if (!have_tx) { - // tx_pad = 0; - // if (rx_pad == 0) { - // tx_pad = 2; - // } - // } - // if (!have_rx) { - // rx_pad = (tx_pad + 1) % 4; - // } - - // // Set up clocks on SERCOM. - // samd_peripherals_sercom_clock_init(sercom, sercom_index); - - // if (rx && receiver_buffer_size > 0) { - // self->buffer_length = receiver_buffer_size; - // // Initially allocate the UART's buffer in the long-lived part of the - // // heap. UARTs are generally long-lived objects, but the "make long- - // // lived" machinery is incapable of moving internal pointers like - // // self->buffer, so do it manually. (However, as long as internal - // // pointers like this are NOT moved, allocating the buffer - // // in the long-lived pool is not strictly necessary) - // self->buffer = (uint8_t *) gc_alloc(self->buffer_length * sizeof(uint8_t), false, true); - // if (self->buffer == NULL) { - // common_hal_busio_uart_deinit(self); - // mp_raise_msg(&mp_type_MemoryError, translate("Failed to allocate RX buffer")); - // } - // } else { - // self->buffer_length = 0; - // self->buffer = NULL; - // } - - // if (usart_async_init(usart_desc_p, sercom, self->buffer, self->buffer_length, NULL) != ERR_NONE) { - // mp_raise_ValueError(translate("Could not initialize UART")); - // } - - // // usart_async_init() sets a number of defaults based on a prototypical SERCOM - // // which don't necessarily match what we need. After calling it, set the values - // // specific to this instantiation of UART. - - // // Set pads computed for this SERCOM. - // // TXPO: - // // 0x0: TX pad 0; no RTS/CTS - // // 0x1: TX pad 2; no RTS/CTS - // // 0x2: TX pad 0; RTS: pad 2, CTS: pad 3 (not used by us right now) - // // So divide by 2 to map pad to value. - // // RXPO: - // // 0x0: RX pad 0 - // // 0x1: RX pad 1 - // // 0x2: RX pad 2 - // // 0x3: RX pad 3 - - // // Doing a group mask and set of the registers saves 60 bytes over setting the bitfields individually. - - // sercom->USART.CTRLA.reg &= ~(SERCOM_USART_CTRLA_TXPO_Msk | - // SERCOM_USART_CTRLA_RXPO_Msk | - // SERCOM_USART_CTRLA_FORM_Msk); - // sercom->USART.CTRLA.reg |= SERCOM_USART_CTRLA_TXPO(tx_pad / 2) | - // SERCOM_USART_CTRLA_RXPO(rx_pad) | - // (parity == PARITY_NONE ? 0 : SERCOM_USART_CTRLA_FORM(1)); - - // // Enable tx and/or rx based on whether the pins were specified. - // // CHSIZE is 0 for 8 bits, 5, 6, 7 for 5, 6, 7 bits. 1 for 9 bits, but we don't support that. - // sercom->USART.CTRLB.reg &= ~(SERCOM_USART_CTRLB_TXEN | - // SERCOM_USART_CTRLB_RXEN | - // SERCOM_USART_CTRLB_PMODE | - // SERCOM_USART_CTRLB_SBMODE | - // SERCOM_USART_CTRLB_CHSIZE_Msk); - // sercom->USART.CTRLB.reg |= (have_tx ? SERCOM_USART_CTRLB_TXEN : 0) | - // (have_rx ? SERCOM_USART_CTRLB_RXEN : 0) | - // (parity == PARITY_ODD ? SERCOM_USART_CTRLB_PMODE : 0) | - // (stop > 1 ? SERCOM_USART_CTRLB_SBMODE : 0) | - // SERCOM_USART_CTRLB_CHSIZE(bits % 8); - - // // Set baud rate - // common_hal_busio_uart_set_baudrate(self, baudrate); - - // // Turn on rx interrupt handling. The UART async driver has its own set of internal callbacks, - // // which are set up by uart_async_init(). These in turn can call user-specified callbacks. - // // In fact, the actual interrupts are not enabled unless we set up a user-specified callback. - // // This is confusing. It's explained in the Atmel START User Guide -> Implementation Description -> - // // Different read function behavior in some asynchronous drivers. As of this writing: - // // http://start.atmel.com/static/help/index.html?GUID-79201A5A-226F-4FBB-B0B8-AB0BE0554836 - // // Look at the ASFv4 code example for async USART. - // usart_async_register_callback(usart_desc_p, USART_ASYNC_RXC_CB, usart_async_rxc_callback); - - - // if (have_tx) { - // gpio_set_pin_direction(tx->number, GPIO_DIRECTION_OUT); - // gpio_set_pin_pull_mode(tx->number, GPIO_PULL_OFF); - // gpio_set_pin_function(tx->number, tx_pinmux); - // self->tx_pin = tx->number; - // claim_pin(tx); - // } else { - // self->tx_pin = NO_PIN; - // } - - // if (have_rx) { - // gpio_set_pin_direction(rx->number, GPIO_DIRECTION_IN); - // gpio_set_pin_pull_mode(rx->number, GPIO_PULL_OFF); - // gpio_set_pin_function(rx->number, rx_pinmux); - // self->rx_pin = rx->number; - // claim_pin(rx); - // } else { - // self->rx_pin = NO_PIN; - // } - - // usart_async_enable(usart_desc_p); } bool common_hal_busio_uart_deinited(busio_uart_obj_t *self) { - return 0;//self->rx_pin == NO_PIN && self->tx_pin == NO_PIN; + return 0; } void common_hal_busio_uart_deinit(busio_uart_obj_t *self) { - // if (common_hal_busio_uart_deinited(self)) { - // return; - // } - // // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - // usart_async_disable(usart_desc_p); - // usart_async_deinit(usart_desc_p); - // reset_pin_number(self->rx_pin); - // reset_pin_number(self->tx_pin); - // self->rx_pin = NO_PIN; - // self->tx_pin = NO_PIN; } // Read characters. size_t common_hal_busio_uart_read(busio_uart_obj_t *self, uint8_t *data, size_t len, int *errcode) { -// if (self->rx_pin == NO_PIN) { -// mp_raise_ValueError(translate("No RX pin")); -// } - -// // This assignment is only here because the usart_async routines take a *const argument. -// struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - -// if (len == 0) { -// // Nothing to read. -// return 0; -// } - -// struct io_descriptor *io; -// usart_async_get_io_descriptor(usart_desc_p, &io); - -// size_t total_read = 0; -// uint64_t start_ticks = ticks_ms; - -// // Busy-wait until timeout or until we've read enough chars. -// while (ticks_ms - start_ticks <= self->timeout_ms) { -// // Read as many chars as we can right now, up to len. -// size_t num_read = io_read(io, data, len); - -// // Advance pointer in data buffer, and decrease how many chars left to read. -// data += num_read; -// len -= num_read; -// total_read += num_read; -// if (len == 0) { -// // Don't need to read any more: data buf is full. -// break; -// } -// if (num_read > 0) { -// // Reset the timeout on every character read. -// start_ticks = ticks_ms; -// } -// #ifdef MICROPY_VM_HOOK_LOOP -// MICROPY_VM_HOOK_LOOP ; -// // Allow user to break out of a timeout with a KeyboardInterrupt. -// if (mp_hal_is_interrupted()) { -// break; -// } -// #endif -// // If we are zero timeout, make sure we don't loop again (in the event -// // we read in under 1ms) -// if (self->timeout_ms == 0) { -// break; -// } -// } - -// if (total_read == 0) { -// *errcode = EAGAIN; -// return MP_STREAM_ERROR; -// } - - return 0;//total_read; + return 0; } // Write characters. size_t common_hal_busio_uart_write(busio_uart_obj_t *self, const uint8_t *data, size_t len, int *errcode) { - // if (self->tx_pin == NO_PIN) { - // mp_raise_ValueError(translate("No TX pin")); - // } - - // // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - - // struct io_descriptor *io; - // usart_async_get_io_descriptor(usart_desc_p, &io); - - // if (io_write(io, data, len) < 0) { - // *errcode = MP_EAGAIN; - // return MP_STREAM_ERROR; - // } - - // // Wait until write is complete or timeout. - // bool done = false; - // uint64_t start_ticks = ticks_ms; - // // Busy-wait for timeout. - // while (ticks_ms - start_ticks < self->timeout_ms) { - // if (usart_async_is_tx_empty(usart_desc_p)) { - // done = true; - // break; - // } - // #ifdef MICROPY_VM_HOOK_LOOP - // MICROPY_VM_HOOK_LOOP - // #endif - // } - - // if (!done) { - // *errcode = MP_EAGAIN; - // return MP_STREAM_ERROR; - // } - - // // All the characters got written. - return 0;//len; + return 0; } uint32_t common_hal_busio_uart_get_baudrate(busio_uart_obj_t *self) { - return 0;//self->baudrate; + return 0; } void common_hal_busio_uart_set_baudrate(busio_uart_obj_t *self, uint32_t baudrate) { - // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - // usart_async_set_baud_rate(usart_desc_p, - // // Samples and ARITHMETIC vs FRACTIONAL must correspond to USART_SAMPR in - // // hpl_sercom_config.h. - // _usart_async_calculate_baud_rate(baudrate, // e.g. 9600 baud - // PROTOTYPE_SERCOM_USART_ASYNC_CLOCK_FREQUENCY, - // 16, // samples - // USART_BAUDRATE_ASYNCH_ARITHMETIC, - // 0 // fraction - not used for ARITHMETIC - // )); - // self->baudrate = baudrate; } uint32_t common_hal_busio_uart_rx_characters_available(busio_uart_obj_t *self) { - // // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - // struct usart_async_status async_status; - // usart_async_get_status(usart_desc_p, &async_status); - return 0;//async_status.rxcnt; + return 0; } void common_hal_busio_uart_clear_rx_buffer(busio_uart_obj_t *self) { - // This assignment is only here because the usart_async routines take a *const argument. - // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc; - // usart_async_flush_rx_buffer(usart_desc_p); - } bool common_hal_busio_uart_ready_to_tx(busio_uart_obj_t *self) { - // if (self->tx_pin == NO_PIN) { - // return false; - // } - // // This assignment is only here because the usart_async routines take a *const argument. - // const struct _usart_async_device * const usart_device_p = - // (struct _usart_async_device * const) &self->usart_desc.device; - return 0;//_usart_async_is_byte_sent(usart_device_p); + return 0; }