diff options
Diffstat (limited to 'watch-library/main.c')
| -rwxr-xr-x | watch-library/main.c | 84 |
1 files changed, 18 insertions, 66 deletions
diff --git a/watch-library/main.c b/watch-library/main.c index b9a5320b..c23ceac6 100755 --- a/watch-library/main.c +++ b/watch-library/main.c @@ -1,30 +1,25 @@ /* - * Copyright (c) 2021, Joey Castillo - * UART methods are Copyright (c) 2014-2017, Alex Taradov <alex@taradov.com> - * All rights reserved. + * MIT License * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: + * Copyright (c) 2021 Joey Castillo * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. */ //----------------------------------------------------------------------------- @@ -35,53 +30,10 @@ #include <stdio.h> #include "saml22.h" #include "hal_init.h" -#include "peripheral_clk_config.h" -#include "hal_gpio.h" #include "atmel_start_pins.h" #include "watch.h" -//----------------------------------------------------------------------------- -HAL_GPIO_PIN(UART_TX, B, 0) - -//----------------------------------------------------------------------------- -static void uart_init(uint32_t baud) { - uint64_t br = (uint64_t)65536 * (CONF_CPU_FREQUENCY - 16 * baud) / CONF_CPU_FREQUENCY; - - HAL_GPIO_UART_TX_out(); - HAL_GPIO_UART_TX_pmuxen(HAL_GPIO_PMUX_C); - - MCLK->APBCMASK.reg |= MCLK_APBCMASK_SERCOM3; - - GCLK->PCHCTRL[SERCOM3_GCLK_ID_CORE].reg = GCLK_PCHCTRL_GEN(0) | GCLK_PCHCTRL_CHEN; - while (0 == (GCLK->PCHCTRL[SERCOM3_GCLK_ID_CORE].reg & GCLK_PCHCTRL_CHEN)); - - SERCOM3->USART.CTRLA.reg = - SERCOM_USART_CTRLA_DORD | SERCOM_USART_CTRLA_MODE(1/*USART_INT_CLK*/) | - SERCOM_USART_CTRLA_RXPO(0/*PAD0*/) | SERCOM_USART_CTRLA_TXPO(1/*PAD2*/); - - SERCOM3->USART.CTRLB.reg = SERCOM_USART_CTRLB_RXEN | SERCOM_USART_CTRLB_TXEN | - SERCOM_USART_CTRLB_CHSIZE(0/*8 bits*/); - - SERCOM3->USART.BAUD.reg = (uint16_t)br; - - SERCOM3->USART.CTRLA.reg |= SERCOM_USART_CTRLA_ENABLE; -} - -//----------------------------------------------------------------------------- -void uart_putc(char c) { - while (!(SERCOM3->USART.INTFLAG.reg & SERCOM_USART_INTFLAG_DRE)); - SERCOM3->USART.DATA.reg = c; -} - -//----------------------------------------------------------------------------- -void uart_puts(char *s) { - while (*s) uart_putc(*s++); -} - int main(void) { - // Temporary, for debugging. - // uart_init(115200); - // ASF code. Initialize the MCU with configuration options from Atmel Studio. init_mcu(); |