diff options
Diffstat (limited to 'cm3cpp_usart_dma.cpp')
| -rw-r--r-- | cm3cpp_usart_dma.cpp | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/cm3cpp_usart_dma.cpp b/cm3cpp_usart_dma.cpp deleted file mode 100644 index a79306a..0000000 --- a/cm3cpp_usart_dma.cpp +++ /dev/null @@ -1,202 +0,0 @@ -/** - ****************************************************************************** - * @file cm3cpp_usart_dma.cpp - * @author - * @version V1.0 - * @date 05-2019 - * @brief This is file realise uart. - ****************************************************************************** - * @attention - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "cm3cpp_usart_dma.hpp" - -#include <cm3cpp_config.h> -#include <libopencm3/stm32/rcc.h> -#include <libopencm3/stm32/usart.h> -#include <string.h> - -namespace cm3cpp { - -namespace usart_dma { - -/** - * Constructor USART-DMA - * @param usart_config - low level config usart - * @param settings - usart settings - * @param dma_tx_config - DMA config for transmission - * @param dma_rx_config - DMA config for receive - */ -UsartDma::UsartDma(const LowLevelConfigUsart& usart_config, - const Settings& settings, - const dma::LowLevelConfig& dma_tx_config, - const dma::LowLevelConfig& dma_rx_config) : - _dma_tx(dma_tx_config), - _dma_rx(dma_rx_config) -{ - // For reset and clock periph - rcc_periph_rst rcc_rst; - rcc_periph_clken rcc_clken; - - switch (usart_config.usart_number) { - case 1: { - _usart = USART1; - rcc_rst = RST_USART1; - rcc_clken = RCC_USART1; - break; - } - case 2: { - _usart = USART2; - rcc_rst = RST_USART2; - rcc_clken = RCC_USART2; - break; - } - case 3: { - _usart = USART3; - rcc_rst = RST_USART3; - rcc_clken = RCC_USART3; - break; - } - case 4: { - _usart = UART4; - rcc_rst = RST_UART4; - rcc_clken = RCC_UART5; - break; - } - case 5: { - _usart = UART5; - rcc_rst = RST_UART5; - rcc_clken = RCC_UART5; - break; - } - default: { - _usart = USART6; - rcc_rst = RST_USART6; - rcc_clken = RCC_USART6; - break; - } - } - - // Reset periph - rcc_periph_reset_pulse(rcc_rst); - // Clock enable - rcc_periph_clock_enable(rcc_clken); - - uint8_t af = GPIO_AF8; - if ((usart_config.usart_number >= 1) && (usart_config.usart_number <= 3)) { - af = GPIO_AF7; - } - - // Config GPIO - if (settings.mode == TX || settings.mode == RX_TX) { - // Pin transmit - port_config_clock_enable(usart_config.tx.port); - gpio_mode_setup(usart_config.tx.port, GPIO_MODE_AF, GPIO_PUPD_NONE, - usart_config.tx.pin); - - gpio_set_af(usart_config.tx.port, af, usart_config.tx.pin); - usart_enable_tx_dma(_usart); - } - - if (settings.mode == RX || settings.mode == RX_TX) { - // Pin receive - port_config_clock_enable(usart_config.rx.port); - gpio_mode_setup(usart_config.rx.port, GPIO_MODE_AF, GPIO_PUPD_NONE, - usart_config.rx.pin); - - gpio_set_af(usart_config.tx.port, af, usart_config.tx.pin); - gpio_set_output_options(usart_config.rx.port, GPIO_OTYPE_OD, - GPIO_OSPEED_100MHZ, usart_config.rx.pin); - usart_enable_rx_dma(_usart); - } - - // Config USART - init_uasrt(settings); - - // Enable USART - enable(); -} - -/** - * Enable clock port GPIO - * @param port - port GPIO - */ -void UsartDma::port_config_clock_enable(uint32_t port) const -{ - rcc_periph_clken clken; - if (port == GPIOA) { - clken = RCC_GPIOA; - } - else if (port == GPIOB) { - clken = RCC_GPIOB; - } - else if (port == GPIOC) { - clken = RCC_GPIOC; - } - else if (port == GPIOD) { - clken = RCC_GPIOD; - } - else if (port == GPIOE) { - clken = RCC_GPIOE; - } - else if (port == GPIOF) { - clken = RCC_GPIOF; - } - else if (port == GPIOG) { - clken = RCC_GPIOG; - } - - rcc_periph_clock_enable(clken); -} - -/** - * Config USART - * @param settings - settings for usart - */ -void UsartDma::init_uasrt(const Settings& settings) const -{ - // Setup parameters - usart_set_baudrate(_usart, settings.baud_rate); - usart_set_databits(_usart, settings.word_length); - usart_set_stopbits(_usart, settings.stop_bits); - usart_set_mode(_usart, settings.mode); - usart_set_parity(_usart, settings.parity); - usart_set_flow_control(_usart, settings.flow_control); -} - -/** - * Usart enable - */ -void UsartDma::enable() const -{ - usart_enable(_usart); -} - -/** - * Usart disable - */ -void UsartDma::disable() const -{ - usart_disable(_usart); -} - -/** - * Sending data to USART(not safe) - * @param data - data reference - * @param len - data length - */ -void UsartDma::write(uint8_t& data, uint16_t len) -{ - _dma_tx.set_memory_address((uint32_t)(&data)); - _dma_tx.set_data_counter(len); - - // Enable sending, disable it in the interrupt - _dma_tx.enable_stream(); -} - -} // namespace usart_dma - -} // namespace cm3cpp |