+++ /dev/null
-/*\r
- * Copyright (c) 2014-2016, Alex Taradov <alex@taradov.com>\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions are met:\r
- *\r
- * 1. Redistributions of source code must retain the above copyright notice,\r
- * this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- * 3. The name of the author may not be used to endorse or promote products\r
- * derived from this software without specific prior written permission.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- * POSSIBILITY OF SUCH DAMAGE.\r
- */\r
-\r
-#ifndef _HAL_GPIO_H_\r
-#define _HAL_GPIO_H_\r
-\r
-/*- Definitions -------------------------------------------------------------*/\r
-#define HAL_GPIO_PORTA 0\r
-#define HAL_GPIO_PORTB 1\r
-#define HAL_GPIO_PORTC 2\r
-\r
-#define HAL_GPIO_PMUX_A 0\r
-#define HAL_GPIO_PMUX_B 1\r
-#define HAL_GPIO_PMUX_C 2\r
-#define HAL_GPIO_PMUX_D 3\r
-#define HAL_GPIO_PMUX_E 4\r
-#define HAL_GPIO_PMUX_F 5\r
-#define HAL_GPIO_PMUX_G 6\r
-#define HAL_GPIO_PMUX_H 7\r
-#define HAL_GPIO_PMUX_I 8\r
-\r
-#define HAL_GPIO_PIN(name, port, pin) \\r
- static inline void HAL_GPIO_##name##_set(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \\r
- (void)HAL_GPIO_##name##_set; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_clr(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTCLR.reg = (1 << pin); \\r
- (void)HAL_GPIO_##name##_clr; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_toggle(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTTGL.reg = (1 << pin); \\r
- (void)HAL_GPIO_##name##_toggle; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_write(int value) \\r
- { \\r
- if (value) \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \\r
- else \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTCLR.reg = (1 << pin); \\r
- (void)HAL_GPIO_##name##_write; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_in(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].DIRCLR.reg = (1 << pin); \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_INEN; \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg &= ~PORT_PINCFG_PULLEN; \\r
- (void)HAL_GPIO_##name##_in; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_out(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].DIRSET.reg = (1 << pin); \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_INEN; \\r
- (void)HAL_GPIO_##name##_out; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_pullup(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].OUTSET.reg = (1 << pin); \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_PULLEN; \\r
- (void)HAL_GPIO_##name##_pullup; \\r
- } \\r
- \\r
- static inline int HAL_GPIO_##name##_read(void) \\r
- { \\r
- return (PORT->Group[HAL_GPIO_PORT##port].IN.reg & (1 << pin)) != 0; \\r
- (void)HAL_GPIO_##name##_read; \\r
- } \\r
- \\r
- static inline int HAL_GPIO_##name##_state(void) \\r
- { \\r
- return (PORT->Group[HAL_GPIO_PORT##port].DIR.reg & (1 << pin)) != 0; \\r
- (void)HAL_GPIO_##name##_state; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_pmuxen(int mux) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg |= PORT_PINCFG_PMUXEN; \\r
- if (pin & 1) \\r
- PORT->Group[HAL_GPIO_PORT##port].PMUX[pin>>1].bit.PMUXO = mux; \\r
- else \\r
- PORT->Group[HAL_GPIO_PORT##port].PMUX[pin>>1].bit.PMUXE = mux; \\r
- (void)HAL_GPIO_##name##_pmuxen; \\r
- } \\r
- \\r
- static inline void HAL_GPIO_##name##_pmuxdis(void) \\r
- { \\r
- PORT->Group[HAL_GPIO_PORT##port].PINCFG[pin].reg &= ~PORT_PINCFG_PMUXEN; \\r
- (void)HAL_GPIO_##name##_pmuxdis; \\r
- } \\r
-\r
-#endif // _HAL_GPIO_H_\r
-\r
/*
- * 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.
*/
//-----------------------------------------------------------------------------
#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();
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Joey Castillo
+ *
+ * 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:
+ *
+ * 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.
+ */
////< @file notes.h
/// @brief 108 notes for use with watch_buzzer_play_note
+/*
+ * MIT License
+ *
+ * Copyright (c) 2021 Joey Castillo
+ *
+ * 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:
+ *
+ * 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.
+ */
+
#include "watch.h"
+#include "peripheral_clk_config.h"
#include <stdlib.h>
//////////////////////////////////////////////////////////////////////////////////////////
return data;
}
+//////////////////////////////////////////////////////////////////////////////////////////
+// Debug UART
+
+/*
+ * UART methods are Copyright (c) 2014-2017, Alex Taradov <alex@taradov.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+void watch_enable_debug_uart(uint32_t baud) {
+ uint64_t br = (uint64_t)65536 * (CONF_CPU_FREQUENCY - 16 * baud) / CONF_CPU_FREQUENCY;
+
+ gpio_set_pin_direction(D1, GPIO_DIRECTION_IN);
+ gpio_set_pin_function(D1, PINMUX_PB00C_SERCOM3_PAD2);
+
+ 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 watch_debug_putc(char c) {
+ while (!(SERCOM3->USART.INTFLAG.reg & SERCOM_USART_INTFLAG_DRE));
+ SERCOM3->USART.DATA.reg = c;
+}
+
+void watch_debug_puts(char *s) {
+ while (*s) watch_debug_putc(*s++);
+}
+
//////////////////////////////////////////////////////////////////////////////////////////
// Deep Sleep
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Joey Castillo
+ *
+ * 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:
+ *
+ * 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.
+ */
/// @file watch.h
#ifndef WATCH_H_
- @ref gpio - This section covers functions related to general-purpose input and output signals.
- @ref i2c - This section covers functions related to the SAM L22's built-I2C driver, including configuring
the I2C bus, putting values directly on the bus and reading data from registers on I2C devices.
+ - @ref debug - This section covers functions related to the debug UART, available on pin D1 of the 9-pin connector.
- @ref deepsleep - This section covers functions related to preparing for and entering BACKUP mode, the
deepest sleep mode available on the SAM L22.
*/
uint32_t watch_i2c_read32(int16_t addr, uint8_t reg);
/// @}
+/** @addtogroup debug Debug UART
+ * @brief This section covers functions related to the debug UART, available on
+ * pin D1 of the 9-pin connector.
+ * @todo Refactor this as a USB CDC so that folks can debug over USB.
+ */
+/// @{
+/** @brief Initializes the debug UART.
+ * @param baud The baud rate
+ */
+void watch_enable_debug_uart(uint32_t baud);
+
+/** @brief Outputs a single character on the debug UART.
+ * @param c The character you wish to output.
+ */
+void watch_debug_putc(char c);
+
+/** @brief Outputs a string on the debug UART.
+ * @param s A null-terminated string.
+ */
+void watch_debug_puts(char *s);
+/// @}
+
/** @addtogroup deepsleep Deep Sleep Control
* @brief This section covers functions related to preparing for and entering BACKUP mode, the
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