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variant.cpp
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variant.cpp
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/*
* Copyright (c) 2017-2018 Thomas Roell. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal with 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:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimers.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimers in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Thomas Roell, nor the names of its contributors
* may be used to endorse or promote products derived from this Software
* without specific prior written permission.
*
* 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
* CONTRIBUTORS 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
* WITH THE SOFTWARE.
*/
#include "Arduino.h"
#include "wiring_private.h"
#define PWM_INSTANCE_TIM21 0
/*
* Pins descriptions
*/
extern const PinDescription g_APinDescription[PINS_COUNT] =
{
// 0..13 - Digital pins
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA3), STM32L0_GPIO_PIN_PA3, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA2), STM32L0_GPIO_PIN_PA2, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA10), STM32L0_GPIO_PIN_PA10, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ NULL, 0, STM32L0_GPIO_PIN_NONE, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB5), STM32L0_GPIO_PIN_PB5, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB7), STM32L0_GPIO_PIN_PB7, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB2), STM32L0_GPIO_PIN_PB2, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA8), STM32L0_GPIO_PIN_PA8, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA9), STM32L0_GPIO_PIN_PA9, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB12), STM32L0_GPIO_PIN_PB12, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB6), STM32L0_GPIO_PIN_PB6, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB15), STM32L0_GPIO_PIN_PB15, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB14), STM32L0_GPIO_PIN_PB14, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB13), STM32L0_GPIO_PIN_PB13_TIM21_CH1, (PIN_ATTR_EXTI), PWM_INSTANCE_TIM21, PWM_CHANNEL_1, ADC_CHANNEL_NONE },
// 14..15 - I2C pins (SDA,SCL)
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB9), STM32L0_GPIO_PIN_PB9, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOB, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PB8), STM32L0_GPIO_PIN_PB8, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
// 16..21 - Analog pins
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA0), STM32L0_GPIO_PIN_PA0, (PIN_ATTR_WKUP1), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_0 },
{ NULL, 0, STM32L0_GPIO_PIN_NONE, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ GPIOA, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA5), STM32L0_GPIO_PIN_PA4, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_4 },
{ NULL, 0, STM32L0_GPIO_PIN_NONE, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ NULL, 0, STM32L0_GPIO_PIN_NONE, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ NULL, 0, STM32L0_GPIO_PIN_NONE, 0, PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
// 22..23 - USB
{ NULL, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA11), STM32L0_GPIO_PIN_PA11, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
{ NULL, STM32L0_GPIO_PIN_MASK(STM32L0_GPIO_PIN_PA12), STM32L0_GPIO_PIN_PA12, (PIN_ATTR_EXTI), PWM_INSTANCE_NONE, PWM_CHANNEL_NONE, ADC_CHANNEL_NONE },
};
extern const unsigned int g_PWMInstances[PWM_INSTANCE_COUNT] = {
STM32L0_TIMER_INSTANCE_TIM21,
};
static uint8_t stm32l0_usart2_rx_fifo[32];
extern const stm32l0_uart_params_t g_SerialParams = {
STM32L0_UART_INSTANCE_USART2,
STM32L0_UART_IRQ_PRIORITY,
STM32L0_DMA_CHANNEL_DMA1_CH5_USART2_RX,
STM32L0_DMA_CHANNEL_DMA1_CH4_USART2_TX,
&stm32l0_usart2_rx_fifo[0],
sizeof(stm32l0_usart2_rx_fifo),
{
STM32L0_GPIO_PIN_PA3_USART2_RX,
STM32L0_GPIO_PIN_PA2_USART2_TX,
STM32L0_GPIO_PIN_NONE,
STM32L0_GPIO_PIN_NONE,
},
};
static uint8_t stm32l0_usart1_rx_fifo[32];
extern const stm32l0_uart_params_t g_Serial1Params = {
STM32L0_UART_INSTANCE_USART1,
STM32L0_UART_IRQ_PRIORITY,
STM32L0_DMA_CHANNEL_DMA1_CH3_USART1_RX,
STM32L0_DMA_CHANNEL_NONE,
&stm32l0_usart1_rx_fifo[0],
sizeof(stm32l0_usart1_rx_fifo),
{
STM32L0_GPIO_PIN_PA10_USART1_RX,
STM32L0_GPIO_PIN_PA9_USART1_TX,
STM32L0_GPIO_PIN_NONE,
STM32L0_GPIO_PIN_NONE,
},
};
extern const stm32l0_spi_params_t g_SPIParams = {
STM32L0_SPI_INSTANCE_SPI2,
STM32L0_SPI_IRQ_PRIORITY,
STM32L0_DMA_CHANNEL_DMA1_CH6_SPI2_RX,
STM32L0_DMA_CHANNEL_NONE,
{
STM32L0_GPIO_PIN_PB15_SPI2_MOSI,
STM32L0_GPIO_PIN_PB14_SPI2_MISO,
STM32L0_GPIO_PIN_PB13_SPI2_SCK,
STM32L0_GPIO_PIN_NONE,
},
};
extern const stm32l0_i2c_params_t g_WireParams = {
STM32L0_I2C_INSTANCE_I2C1,
STM32L0_I2C_IRQ_PRIORITY,
STM32L0_DMA_CHANNEL_DMA1_CH7_I2C1_RX,
STM32L0_DMA_CHANNEL_NONE,
{
STM32L0_GPIO_PIN_PB8_I2C1_SCL,
STM32L0_GPIO_PIN_PB9_I2C1_SDA,
},
};
void initVariant()
{
#if !defined(USBCON) || (USB_TYPE == USB_TYPE_NONE)
CMWX1ZZABZ_Initialize(STM32L0_GPIO_PIN_PB6, STM32L0_GPIO_PIN_PA11);
#else
CMWX1ZZABZ_Initialize(STM32L0_GPIO_PIN_PA8, STM32L0_GPIO_PIN_NONE);
#endif
}