[STM32F3] Moved all F3 specific functions out of common.
This commit is contained in:
Piotr Esden-Tempski
@@ -61,18 +61,6 @@ void usart_set_baudrate(uint32_t usart, uint32_t baud)
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}
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#endif
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#if defined STM32F3
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if (usart == USART1) {
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/* usart1 can be clocked from appart from pclk1 also from sysclk,
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hsi and lse. Please improve! */
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clock = rcc_ppre2_frequency;
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}
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else {
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/*There are from usart1 to usart5 interfaces in the stm32f3*/
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clock = rcc_ppre1_frequency;
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}
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#endif
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/*
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* Yes it is as simple as that. The reference manual is
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* talking about fractional calculation but it seems to be only
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@@ -208,84 +196,6 @@ void usart_disable(uint32_t usart)
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USART_CR1(usart) &= ~USART_CR1_UE;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Send a Data Word.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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@param[in] data unsigned 16 bit.
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*/
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void usart_send(uint32_t usart, uint16_t data)
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{
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/* Send data. */
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#if !defined(STM32F3)
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USART_DR(usart) = (data & USART_DR_MASK);
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#else
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USART_TDR(usart) = (data & USART_TDR_MASK);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Read a Received Data Word.
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If parity is enabled the MSB (bit 7 or 8 depending on the word length) is the
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parity bit.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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@returns unsigned 16 bit data word.
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*/
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uint16_t usart_recv(uint32_t usart)
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{
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/* Receive data. */
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#if !defined(STM32F3)
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return USART_DR(usart) & USART_DR_MASK;
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#else
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return USART_RDR(usart) & USART_RDR_MASK;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Wait for Transmit Data Buffer Empty
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Blocks until the transmit data buffer becomes empty and is ready to accept the
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next data word.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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*/
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void usart_wait_send_ready(uint32_t usart)
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{
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/* Wait until the data has been transferred into the shift register. */
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#if !defined(STM32F3)
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while ((USART_SR(usart) & USART_SR_TXE) == 0);
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#else
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while ((USART_ISR(usart) & USART_ISR_TXE) == 0);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Wait for Received Data Available
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Blocks until the receive data buffer holds a valid received data word.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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*/
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void usart_wait_recv_ready(uint32_t usart)
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{
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/* Wait until the data is ready to be received. */
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#if !defined(STM32F3)
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while ((USART_SR(usart) & USART_SR_RXNE) == 0);
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#else
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while ((USART_ISR(usart) & USART_ISR_RXNE) == 0);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Send Data Word with Blocking
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@@ -453,64 +363,5 @@ void usart_disable_error_interrupt(uint32_t usart)
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USART_CR3(usart) &= ~USART_CR3_EIE;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Read a Status Flag.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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@param[in] flag Unsigned int32. Status register flag @ref usart_sr_flags.
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@returns boolean: flag set.
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*/
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bool usart_get_flag(uint32_t usart, uint32_t flag)
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{
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#if !defined(STM32F3)
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return ((USART_SR(usart) & flag) != 0);
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#else
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return ((USART_ISR(usart) & flag) != 0);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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/** @brief USART Return Interrupt Source.
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Returns true if the specified interrupt flag (IDLE, RXNE, TC, TXE or OE) was
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set and the interrupt was enabled. If the specified flag is not an interrupt
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flag, the function returns false.
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@todo These are the most important interrupts likely to be used. Others
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relating to LIN break, and error conditions in multibuffer communication, need
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to be added for completeness.
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@param[in] usart unsigned 32 bit. USART block register address base @ref
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usart_reg_base
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@param[in] flag Unsigned int32. Status register flag @ref usart_sr_flags.
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@returns boolean: flag and interrupt enable both set.
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*/
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bool usart_get_interrupt_source(uint32_t usart, uint32_t flag)
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{
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#if !defined(STM32F3)
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uint32_t flag_set = (USART_SR(usart) & flag);
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/* IDLE, RXNE, TC, TXE interrupts */
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if ((flag >= USART_SR_IDLE) && (flag <= USART_SR_TXE)) {
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#else
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uint32_t flag_set = (USART_ISR(usart) & flag);
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/* IDLE, RXNE, TC, TXE interrupts */
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if ((flag >= USART_ISR_IDLE) && (flag <= USART_ISR_TXE)) {
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#endif
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return ((flag_set & USART_CR1(usart)) != 0);
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/* Overrun error */
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#if !defined(STM32F3)
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} else if (flag == USART_SR_ORE) {
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#else
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} else if (flag == USART_ISR_ORE) {
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#endif
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return flag_set && (USART_CR3(usart) & USART_CR3_CTSIE);
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}
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return false;
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}
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/**@}*/
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