diff options
Diffstat (limited to 'platforms/chibios/drivers')
-rw-r--r-- | platforms/chibios/drivers/audio_pwm_hardware.c | 18 | ||||
-rw-r--r-- | platforms/chibios/drivers/backlight_pwm.c | 4 | ||||
-rw-r--r-- | platforms/chibios/drivers/i2c_master.c | 43 | ||||
-rw-r--r-- | platforms/chibios/drivers/i2c_master.h | 49 | ||||
-rw-r--r-- | platforms/chibios/drivers/spi_master.c | 43 | ||||
-rw-r--r-- | platforms/chibios/drivers/spi_master.h | 102 | ||||
-rw-r--r-- | platforms/chibios/drivers/uart.h | 200 | ||||
-rw-r--r-- | platforms/chibios/drivers/uart_serial.c | 83 | ||||
-rw-r--r-- | platforms/chibios/drivers/uart_sio.c | 67 |
9 files changed, 226 insertions, 383 deletions
diff --git a/platforms/chibios/drivers/audio_pwm_hardware.c b/platforms/chibios/drivers/audio_pwm_hardware.c index 1ba7ec13bc..afa341abb6 100644 --- a/platforms/chibios/drivers/audio_pwm_hardware.c +++ b/platforms/chibios/drivers/audio_pwm_hardware.c @@ -41,18 +41,19 @@ static float channel_1_frequency = 0.0f; void channel_1_set_frequency(float freq) { channel_1_frequency = freq; + pwmcnt_t period; + pwmcnt_t width; if (freq <= 0.0) { - // a pause/rest has freq=0 - return; + period = 2; + width = 0; + } else { + period = (pwmCFG.frequency / freq); + width = (pwmcnt_t)(((period) * (pwmcnt_t)((100 - note_timbre) * 100)) / (pwmcnt_t)(10000)); } - - pwmcnt_t period = (pwmCFG.frequency / freq); chSysLockFromISR(); pwmChangePeriodI(&AUDIO_PWM_DRIVER, period); - pwmEnableChannelI(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1, - // adjust the duty-cycle so that the output is for 'note_timbre' duration HIGH - PWM_PERCENTAGE_TO_WIDTH(&AUDIO_PWM_DRIVER, (100 - note_timbre) * 100)); + pwmEnableChannelI(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1, width); chSysUnlockFromISR(); } @@ -67,6 +68,9 @@ void channel_1_start(void) { void channel_1_stop(void) { pwmStop(&AUDIO_PWM_DRIVER); + pwmStart(&AUDIO_PWM_DRIVER, &pwmCFG); + pwmEnableChannel(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1, 0); + pwmStop(&AUDIO_PWM_DRIVER); } static virtual_timer_t audio_vt; diff --git a/platforms/chibios/drivers/backlight_pwm.c b/platforms/chibios/drivers/backlight_pwm.c index 25fe7962b0..47ad008415 100644 --- a/platforms/chibios/drivers/backlight_pwm.c +++ b/platforms/chibios/drivers/backlight_pwm.c @@ -28,9 +28,9 @@ // Support for pins which are on TIM1_CH1N #ifdef BACKLIGHT_PWM_COMPLEMENTARY_OUTPUT # if BACKLIGHT_ON_STATE == 1 -# define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_LOW; -# else # define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_HIGH; +# else +# define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_LOW; # endif #else # if BACKLIGHT_ON_STATE == 1 diff --git a/platforms/chibios/drivers/i2c_master.c b/platforms/chibios/drivers/i2c_master.c index 0d5fb1e985..1d7fe27633 100644 --- a/platforms/chibios/drivers/i2c_master.c +++ b/platforms/chibios/drivers/i2c_master.c @@ -29,17 +29,37 @@ #include "i2c_master.h" #include "gpio.h" #include "chibios_config.h" -#include <string.h> #include <ch.h> #include <hal.h> +#ifndef I2C_DRIVER +# define I2C_DRIVER I2CD1 +#endif + #ifndef I2C1_SCL_PIN # define I2C1_SCL_PIN B6 #endif + +#ifndef I2C1_SCL_PAL_MODE +# ifdef USE_GPIOV1 +# define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN +# else +# define I2C1_SCL_PAL_MODE 4 +# endif +#endif + #ifndef I2C1_SDA_PIN # define I2C1_SDA_PIN B7 #endif +#ifndef I2C1_SDA_PAL_MODE +# ifdef USE_GPIOV1 +# define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN +# else +# define I2C1_SDA_PAL_MODE 4 +# endif +#endif + #ifdef USE_I2CV1 # ifndef I2C1_OPMODE # define I2C1_OPMODE OPMODE_I2C @@ -70,27 +90,6 @@ # endif #endif -#ifndef I2C_DRIVER -# define I2C_DRIVER I2CD1 -#endif - -#ifdef USE_GPIOV1 -# ifndef I2C1_SCL_PAL_MODE -# define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN -# endif -# ifndef I2C1_SDA_PAL_MODE -# define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN -# endif -#else -// The default PAL alternate modes are used to signal that the pins are used for I2C -# ifndef I2C1_SCL_PAL_MODE -# define I2C1_SCL_PAL_MODE 4 -# endif -# ifndef I2C1_SDA_PAL_MODE -# define I2C1_SDA_PAL_MODE 4 -# endif -#endif - static const I2CConfig i2cconfig = { #if defined(USE_I2CV1_CONTRIB) I2C1_CLOCK_SPEED, diff --git a/platforms/chibios/drivers/i2c_master.h b/platforms/chibios/drivers/i2c_master.h deleted file mode 100644 index 132ffd14c0..0000000000 --- a/platforms/chibios/drivers/i2c_master.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Copyright 2018 Jack Humbert - * Copyright 2018 Yiancar - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* This library follows the convention of the AVR i2c_master library. - * As a result addresses are expected to be already shifted (addr << 1). - * I2CD1 is the default driver which corresponds to pins B6 and B7. This - * can be changed. - * Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that - * STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file. - */ -#pragma once - -#include <stdint.h> - -// ### DEPRECATED - DO NOT USE ### -#define i2c_writeReg(devaddr, regaddr, data, length, timeout) i2c_write_register(devaddr, regaddr, data, length, timeout) -#define i2c_writeReg16(devaddr, regaddr, data, length, timeout) i2c_write_register16(devaddr, regaddr, data, length, timeout) -#define i2c_readReg(devaddr, regaddr, data, length, timeout) i2c_read_register(devaddr, regaddr, data, length, timeout) -#define i2c_readReg16(devaddr, regaddr, data, length, timeout) i2c_read_register16(devaddr, regaddr, data, length, timeout) -// ############################### - -typedef int16_t i2c_status_t; - -#define I2C_STATUS_SUCCESS (0) -#define I2C_STATUS_ERROR (-1) -#define I2C_STATUS_TIMEOUT (-2) - -void i2c_init(void); -i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_write_register(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_write_register16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_read_register(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_read_register16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); -i2c_status_t i2c_ping_address(uint8_t address, uint16_t timeout); diff --git a/platforms/chibios/drivers/spi_master.c b/platforms/chibios/drivers/spi_master.c index 414e5b10a3..f5e48edfda 100644 --- a/platforms/chibios/drivers/spi_master.c +++ b/platforms/chibios/drivers/spi_master.c @@ -15,8 +15,49 @@ */ #include "spi_master.h" +#include "chibios_config.h" +#include <ch.h> +#include <hal.h> -#include "timer.h" +#ifndef SPI_DRIVER +# define SPI_DRIVER SPID2 +#endif + +#ifndef SPI_SCK_PIN +# define SPI_SCK_PIN B13 +#endif + +#ifndef SPI_SCK_PAL_MODE +# ifdef USE_GPIOV1 +# define SPI_SCK_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define SPI_SCK_PAL_MODE 5 +# endif +#endif + +#ifndef SPI_MOSI_PIN +# define SPI_MOSI_PIN B15 +#endif + +#ifndef SPI_MOSI_PAL_MODE +# ifdef USE_GPIOV1 +# define SPI_MOSI_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define SPI_MOSI_PAL_MODE 5 +# endif +#endif + +#ifndef SPI_MISO_PIN +# define SPI_MISO_PIN B14 +#endif + +#ifndef SPI_MISO_PAL_MODE +# ifdef USE_GPIOV1 +# define SPI_MISO_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define SPI_MISO_PAL_MODE 5 +# endif +#endif static bool spiStarted = false; #if SPI_SELECT_MODE == SPI_SELECT_MODE_NONE diff --git a/platforms/chibios/drivers/spi_master.h b/platforms/chibios/drivers/spi_master.h deleted file mode 100644 index 4ad6144091..0000000000 --- a/platforms/chibios/drivers/spi_master.h +++ /dev/null @@ -1,102 +0,0 @@ -/* Copyright 2020 Nick Brassel (tzarc) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - -#pragma once - -#include <ch.h> -#include <hal.h> -#include <stdbool.h> - -#include "gpio.h" -#include "chibios_config.h" - -#ifndef SPI_DRIVER -# define SPI_DRIVER SPID2 -#endif - -#ifndef SPI_SCK_PIN -# define SPI_SCK_PIN B13 -#endif - -#ifndef SPI_SCK_PAL_MODE -# if defined(USE_GPIOV1) -# define SPI_SCK_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL -# else -# define SPI_SCK_PAL_MODE 5 -# endif -#endif - -#ifndef SPI_MOSI_PIN -# define SPI_MOSI_PIN B15 -#endif - -#ifndef SPI_MOSI_PAL_MODE -# if defined(USE_GPIOV1) -# define SPI_MOSI_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL -# else -# define SPI_MOSI_PAL_MODE 5 -# endif -#endif - -#ifndef SPI_MISO_PIN -# define SPI_MISO_PIN B14 -#endif - -#ifndef SPI_MISO_PAL_MODE -# if defined(USE_GPIOV1) -# define SPI_MISO_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL -# else -# define SPI_MISO_PAL_MODE 5 -# endif -#endif - -typedef int16_t spi_status_t; - -#define SPI_STATUS_SUCCESS (0) -#define SPI_STATUS_ERROR (-1) -#define SPI_STATUS_TIMEOUT (-2) - -#define SPI_TIMEOUT_IMMEDIATE (0) -#define SPI_TIMEOUT_INFINITE (0xFFFF) - -#ifdef __cplusplus -extern "C" { -#endif -typedef struct spi_start_config_t { - pin_t slave_pin; - bool lsb_first; - uint8_t mode; - uint16_t divisor; - bool cs_active_low; -} spi_start_config_t; - -void spi_init(void); - -bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor); -bool spi_start_extended(spi_start_config_t *start_config); - -spi_status_t spi_write(uint8_t data); - -spi_status_t spi_read(void); - -spi_status_t spi_transmit(const uint8_t *data, uint16_t length); - -spi_status_t spi_receive(uint8_t *data, uint16_t length); - -void spi_stop(void); -#ifdef __cplusplus -} -#endif diff --git a/platforms/chibios/drivers/uart.h b/platforms/chibios/drivers/uart.h deleted file mode 100644 index c1945575f1..0000000000 --- a/platforms/chibios/drivers/uart.h +++ /dev/null @@ -1,200 +0,0 @@ -// Copyright 2024 Stefan Kerkmann -// Copyright 2021 QMK -// Copyright 2024 Stefan Kerkmann -// SPDX-License-Identifier: GPL-2.0-or-later - -#pragma once - -#include <stdint.h> -#include <stdbool.h> - -#include <hal.h> - -#include "gpio.h" -#include "chibios_config.h" - -// ======== DEPRECATED DEFINES - DO NOT USE ======== -#ifdef SERIAL_DRIVER -# define UART_DRIVER SERIAL_DRIVER -#endif -#ifdef SD1_TX_PIN -# define UART_TX_PIN SD1_TX_PIN -#endif -#ifdef SD1_RX_PIN -# define UART_RX_PIN SD1_RX_PIN -#endif -#ifdef SD1_CTS_PIN -# define UART_CTS_PIN SD1_CTS_PIN -#endif -#ifdef SD1_RTS_PIN -# define UART_RTS_PIN SD1_RTS_PIN -#endif -#ifdef SD1_TX_PAL_MODE -# define UART_TX_PAL_MODE SD1_TX_PAL_MODE -#endif -#ifdef SD1_RX_PAL_MODE -# define UART_RX_PAL_MODE SD1_RX_PAL_MODE -#endif -#ifdef SD1_CTS_PAL_MODE -# define UART_RTS_PAL_MODE SD1_CTS_PAL_MODE -#endif -#ifdef SD1_RTS_PAL_MODE -# define UART_TX_PAL_MODE SD1_RTS_PAL_MODE -#endif -#ifdef SD1_CR1 -# define UART_CR1 SD1_CR1 -#endif -#ifdef SD1_CR2 -# define UART_CR2 SD1_CR2 -#endif -#ifdef SD1_CR3 -# define UART_CR3 SD1_CR3 -#endif -#ifdef SD1_WRDLEN -# define UART_WRDLEN SD1_WRDLEN -#endif -#ifdef SD1_STPBIT -# define UART_STPBIT SD1_STPBIT -#endif -#ifdef SD1_PARITY -# define UART_PARITY SD1_PARITY -#endif -#ifdef SD1_ATFLCT -# define UART_ATFLCT SD1_ATFLCT -#endif -// ======== - -#ifndef UART_DRIVER -# if (HAL_USE_SERIAL == TRUE) -# define UART_DRIVER SD1 -# elif (HAL_USE_SIO == TRUE) -# define UART_DRIVER SIOD1 -# endif -#endif - -#ifndef UART_TX_PIN -# define UART_TX_PIN A9 -#endif - -#ifndef UART_RX_PIN -# define UART_RX_PIN A10 -#endif - -#ifndef UART_CTS_PIN -# define UART_CTS_PIN A11 -#endif - -#ifndef UART_RTS_PIN -# define UART_RTS_PIN A12 -#endif - -#ifdef USE_GPIOV1 -# ifndef UART_TX_PAL_MODE -# define UART_TX_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL -# endif -# ifndef UART_RX_PAL_MODE -# define UART_RX_PAL_MODE PAL_MODE_INPUT -# endif -# ifndef UART_CTS_PAL_MODE -# define UART_CTS_PAL_MODE PAL_MODE_INPUT -# endif -# ifndef UART_RTS_PAL_MODE -# define UART_RTS_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL -# endif -#else -# ifndef UART_TX_PAL_MODE -# define UART_TX_PAL_MODE 7 -# endif - -# ifndef UART_RX_PAL_MODE -# define UART_RX_PAL_MODE 7 -# endif - -# ifndef UART_CTS_PAL_MODE -# define UART_CTS_PAL_MODE 7 -# endif - -# ifndef UART_RTS_PAL_MODE -# define UART_RTS_PAL_MODE 7 -# endif -#endif - -#ifndef UART_CR1 -# define UART_CR1 0 -#endif - -#ifndef UART_CR2 -# define UART_CR2 0 -#endif - -#ifndef UART_CR3 -# define UART_CR3 0 -#endif - -#ifndef UART_WRDLEN -# define UART_WRDLEN 3 -#endif - -#ifndef UART_STPBIT -# define UART_STPBIT 0 -#endif - -#ifndef UART_PARITY -# define UART_PARITY 0 -#endif - -#ifndef UART_ATFLCT -# define UART_ATFLCT 0 -#endif - -/** - * @brief Initialize the UART driver. This function must be called only once, - * before any of the below functions can be called. - * - * @param baud The baud rate to transmit and receive at. This may depend on the - * device you are communicating with. Common values are 1200, 2400, 4800, 9600, - * 19200, 38400, 57600, and 115200. - */ -void uart_init(uint32_t baud); - -/** - * @brief Transmit a single byte. - * - * @param data The byte to transmit. - */ -void uart_write(uint8_t data); - -/** - * @brief Receive a single byte. - * - * @return uint8_t The byte read from the receive buffer. This function will - * block if the buffer is empty (ie. no data to read). - */ -uint8_t uart_read(void); - -/** - * @brief Transmit multiple bytes. - * - * @param data A pointer to the data to write from. - * @param length The number of bytes to write. Take care not to overrun the - * length of `data`. - */ -void uart_transmit(const uint8_t *data, uint16_t length); - -/** - * @brief Receive multiple bytes. - * - * @param data A pointer to the buffer to read into. - * @param length The number of bytes to read. Take care not to overrun the - * length of `data`. - */ -void uart_receive(uint8_t *data, uint16_t length); - -/** - * @brief Return whether the receive buffer contains data. Call this function - * to determine if `uart_read()` will return data immediately. - * - * @return true If there is data available to read. - * @return false If there is no data available to read. - */ -bool uart_available(void); diff --git a/platforms/chibios/drivers/uart_serial.c b/platforms/chibios/drivers/uart_serial.c index 6aff4eae47..e0afb9768a 100644 --- a/platforms/chibios/drivers/uart_serial.c +++ b/platforms/chibios/drivers/uart_serial.c @@ -3,6 +3,89 @@ // SPDX-License-Identifier: GPL-2.0-or-later #include "uart.h" +#include "gpio.h" +#include "chibios_config.h" +#include <hal.h> + +#ifndef UART_DRIVER +# define UART_DRIVER SD1 +#endif + +#ifndef UART_TX_PIN +# define UART_TX_PIN A9 +#endif + +#ifndef UART_TX_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_TX_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define UART_TX_PAL_MODE 7 +# endif +#endif + +#ifndef UART_RX_PIN +# define UART_RX_PIN A10 +#endif + +#ifndef UART_RX_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_RX_PAL_MODE PAL_MODE_INPUT +# else +# define UART_RX_PAL_MODE 7 +# endif +#endif + +#ifndef UART_CTS_PIN +# define UART_CTS_PIN A11 +#endif + +#ifndef UART_CTS_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_CTS_PAL_MODE PAL_MODE_INPUT +# else +# define UART_CTS_PAL_MODE 7 +# endif +#endif + +#ifndef UART_RTS_PIN +# define UART_RTS_PIN A12 +#endif + +#ifndef UART_RTS_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_RTS_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define UART_RTS_PAL_MODE 7 +# endif +#endif + +#ifndef UART_CR1 +# define UART_CR1 0 +#endif + +#ifndef UART_CR2 +# define UART_CR2 0 +#endif + +#ifndef UART_CR3 +# define UART_CR3 0 +#endif + +#ifndef UART_WRDLEN +# define UART_WRDLEN 3 +#endif + +#ifndef UART_STPBIT +# define UART_STPBIT 0 +#endif + +#ifndef UART_PARITY +# define UART_PARITY 0 +#endif + +#ifndef UART_ATFLCT +# define UART_ATFLCT 0 +#endif #if defined(MCU_KINETIS) static SerialConfig serialConfig = {SERIAL_DEFAULT_BITRATE}; diff --git a/platforms/chibios/drivers/uart_sio.c b/platforms/chibios/drivers/uart_sio.c index 442df1c54d..fc12f0abed 100644 --- a/platforms/chibios/drivers/uart_sio.c +++ b/platforms/chibios/drivers/uart_sio.c @@ -3,6 +3,73 @@ // SPDX-License-Identifier: GPL-2.0-or-later #include "uart.h" +#include "gpio.h" +#include "chibios_config.h" +#include <hal.h> + +#ifndef UART_DRIVER +# define UART_DRIVER SIOD1 +#endif + +#ifndef UART_TX_PIN +# define UART_TX_PIN A9 +#endif + +#ifndef UART_TX_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_TX_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define UART_TX_PAL_MODE 7 +# endif +#endif + +#ifndef UART_RX_PIN +# define UART_RX_PIN A10 +#endif + +#ifndef UART_RX_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_RX_PAL_MODE PAL_MODE_INPUT +# else +# define UART_RX_PAL_MODE 7 +# endif +#endif + +#ifndef UART_CTS_PIN +# define UART_CTS_PIN A11 +#endif + +#ifndef UART_CTS_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_CTS_PAL_MODE PAL_MODE_INPUT +# else +# define UART_CTS_PAL_MODE 7 +# endif +#endif + +#ifndef UART_RTS_PIN +# define UART_RTS_PIN A12 +#endif + +#ifndef UART_RTS_PAL_MODE +# ifdef USE_GPIOV1 +# define UART_RTS_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL +# else +# define UART_RTS_PAL_MODE 7 +# endif +#endif + +#ifndef UART_CR1 +# define UART_CR1 0 +#endif + +#ifndef UART_CR2 +# define UART_CR2 0 +#endif + +#ifndef UART_CR3 +# define UART_CR3 0 +#endif #if defined(MCU_RP) // 38400 baud, 8 data bits, 1 stop bit, no parity, no flow control |