uart4，5不能通讯
发布: 2009-12-16 10:01 | 作者: cyj123 | 来源: StmFans思蜕盟 OPELC 自由电子联盟
编译通过了，usart1，2，3都可以通讯，但4，5 口始终在等待TXE,先用2.03库，后改用3.1的库，都不行 库都是从ST网站下的，
查看头文件，居然没有uart4，5的寄存器定义，该怎么解决此问题？谢谢！
"stm32f10x.h"
******************* Bit definition for USART_SR register *******************/
#define USART_SR_PE ((uint16_t)0x0001) /*!<Parity Error */
#define USART_SR_FE ((uint16_t)0x0002) /*!<Framing Error */
#define USART_SR_NE ((uint16_t)0x0004) /*!<Noise Error Flag */
#define USART_SR_ORE ((uint16_t)0x0008) /*!<OverRun Error */
#define USART_SR_IDLE ((uint16_t)0x0010) /*!<IDLE line detected */
#define USART_SR_RXNE ((uint16_t)0x0020) /*!<Read Data Register Not Empty */
#define USART_SR_TC ((uint16_t)0x0040) /*!<Transmission Complete */
#define USART_SR_TXE ((uint16_t)0x0080) /*!<Transmit Data Register Empty */
#define USART_SR_LBD ((uint16_t)0x0100) /*!<LIN Break Detection Flag */
#define USART_SR_CTS ((uint16_t)0x0200) /*!<CTS Flag */
/******************* Bit definition for USART_DR register *******************/
#define USART_DR_DR ((uint16_t)0x01FF) /*!<Data value */
/****************** Bit definition for USART_BRR register *******************/
#define USART_BRR_DIV_Fraction ((uint16_t)0x000F) /*!<Fraction of USARTDIV */
#define USART_BRR_DIV_Mantissa ((uint16_t)0xFFF0) /*!<Mantissa of USARTDIV */
/****************** Bit definition for USART_CR1 register *******************/
#define USART_CR1_SBK ((uint16_t)0x0001) /*!<Send Break */
#define USART_CR1_RWU ((uint16_t)0x0002) /*!<Receiver wakeup */
#define USART_CR1_RE ((uint16_t)0x0004) /*!<Receiver Enable */
#define USART_CR1_TE ((uint16_t)0x0008) /*!<Transmitter Enable */
#define USART_CR1_IDLEIE ((uint16_t)0x0010) /*!<IDLE Interrupt Enable */
#define USART_CR1_RXNEIE ((uint16_t)0x0020) /*!<RXNE Interrupt Enable */
#define USART_CR1_TCIE ((uint16_t)0x0040) /*!<Transmission Complete Interrupt Enable */
#define USART_CR1_TXEIE ((uint16_t)0x0080) /*!<PE Interrupt Enable */
#define USART_CR1_PEIE ((uint16_t)0x0100) /*!<PE Interrupt Enable */
#define USART_CR1_PS ((uint16_t)0x0200) /*!<Parity Selection */
#define USART_CR1_PCE ((uint16_t)0x0400) /*!<Parity Control Enable */
#define USART_CR1_WAKE ((uint16_t)0x0800) /*!<Wakeup method */
#define USART_CR1_M ((uint16_t)0x1000) /*!<Word length */
#define USART_CR1_UE ((uint16_t)0x2000) /*!<USART Enable */
/****************** Bit definition for USART_CR2 register *******************/
#define USART_CR2_ADD ((uint16_t)0x000F) /*!<Address of the USART node */
#define USART_CR2_LBDL ((uint16_t)0x0020) /*!<LIN Break Detection Length */
#define USART_CR2_LBDIE ((uint16_t)0x0040) /*!<LIN Break Detection Interrupt Enable */
#define USART_CR2_LBCL ((uint16_t)0x0100) /*!<Last Bit Clock pulse */
#define USART_CR2_CPHA ((uint16_t)0x0200) /*!<Clock Phase */
#define USART_CR2_CPOL ((uint16_t)0x0400) /*!<Clock Polarity */
#define USART_CR2_CLKEN ((uint16_t)0x0800) /*!<Clock Enable */
#define USART_CR2_STOP ((uint16_t)0x3000) /*!<STOP[1:0] bits (STOP bits) */
#define USART_CR2_STOP_0 ((uint16_t)0x1000) /*!<Bit 0 */
#define USART_CR2_STOP_1 ((uint16_t)0x2000) /*!<Bit 1 */
#define USART_CR2_LINEN ((uint16_t)0x4000) /*!<LIN mode enable */
/****************** Bit definition for USART_CR3 register *******************/
#define USART_CR3_EIE ((uint16_t)0x0001) /*!<Error Interrupt Enable */
#define USART_CR3_IREN ((uint16_t)0x0002) /*!<IrDA mode Enable */
#define USART_CR3_IRLP ((uint16_t)0x0004) /*!<IrDA Low-Power */
#define USART_CR3_HDSEL ((uint16_t)0x0008) /*!<Half-Duplex Selection */
#define USART_CR3_NACK ((uint16_t)0x0010) /*!<Smartcard NACK enable */
#define USART_CR3_SCEN ((uint16_t)0x0020) /*!<Smartcard mode enable */
#define USART_CR3_DMAR ((uint16_t)0x0040) /*!<DMA Enable Receiver */
#define USART_CR3_DMAT ((uint16_t)0x0080) /*!<DMA Enable Transmitter */
#define USART_CR3_RTSE ((uint16_t)0x0100) /*!<RTS Enable */
#define USART_CR3_CTSE ((uint16_t)0x0200) /*!<CTS Enable */
#define USART_CR3_CTSIE ((uint16_t)0x0400) /*!<CTS Interrupt Enable */
/****************** Bit definition for USART_GTPR register ******************/
#define USART_GTPR_PSC ((uint16_t)0x00FF) /*!<PSC[7:0] bits (Prescaler value) */
#define USART_GTPR_PSC_0 ((uint16_t)0x0001) /*!<Bit 0 */
#define USART_GTPR_PSC_1 ((uint16_t)0x0002) /*!<Bit 1 */
#define USART_GTPR_PSC_2 ((uint16_t)0x0004) /*!<Bit 2 */
#define USART_GTPR_PSC_3 ((uint16_t)0x0008) /*!<Bit 3 */
#define USART_GTPR_PSC_4 ((uint16_t)0x0010) /*!<Bit 4 */
#define USART_GTPR_PSC_5 ((uint16_t)0x0020) /*!<Bit 5 */
#define USART_GTPR_PSC_6 ((uint16_t)0x0040) /*!<Bit 6 */
#define USART_GTPR_PSC_7 ((uint16_t)0x0080) /*!<Bit 7 */
#define USART_GTPR_GT ((uint16_t)0xFF00) /*!<Guard time value */
查看头文件，居然没有uart4，5的寄存器定义，该怎么解决此问题？谢谢！
"stm32f10x.h"
******************* Bit definition for USART_SR register *******************/
#define USART_SR_PE ((uint16_t)0x0001) /*!<Parity Error */
#define USART_SR_FE ((uint16_t)0x0002) /*!<Framing Error */
#define USART_SR_NE ((uint16_t)0x0004) /*!<Noise Error Flag */
#define USART_SR_ORE ((uint16_t)0x0008) /*!<OverRun Error */
#define USART_SR_IDLE ((uint16_t)0x0010) /*!<IDLE line detected */
#define USART_SR_RXNE ((uint16_t)0x0020) /*!<Read Data Register Not Empty */
#define USART_SR_TC ((uint16_t)0x0040) /*!<Transmission Complete */
#define USART_SR_TXE ((uint16_t)0x0080) /*!<Transmit Data Register Empty */
#define USART_SR_LBD ((uint16_t)0x0100) /*!<LIN Break Detection Flag */
#define USART_SR_CTS ((uint16_t)0x0200) /*!<CTS Flag */
/******************* Bit definition for USART_DR register *******************/
#define USART_DR_DR ((uint16_t)0x01FF) /*!<Data value */
/****************** Bit definition for USART_BRR register *******************/
#define USART_BRR_DIV_Fraction ((uint16_t)0x000F) /*!<Fraction of USARTDIV */
#define USART_BRR_DIV_Mantissa ((uint16_t)0xFFF0) /*!<Mantissa of USARTDIV */
/****************** Bit definition for USART_CR1 register *******************/
#define USART_CR1_SBK ((uint16_t)0x0001) /*!<Send Break */
#define USART_CR1_RWU ((uint16_t)0x0002) /*!<Receiver wakeup */
#define USART_CR1_RE ((uint16_t)0x0004) /*!<Receiver Enable */
#define USART_CR1_TE ((uint16_t)0x0008) /*!<Transmitter Enable */
#define USART_CR1_IDLEIE ((uint16_t)0x0010) /*!<IDLE Interrupt Enable */
#define USART_CR1_RXNEIE ((uint16_t)0x0020) /*!<RXNE Interrupt Enable */
#define USART_CR1_TCIE ((uint16_t)0x0040) /*!<Transmission Complete Interrupt Enable */
#define USART_CR1_TXEIE ((uint16_t)0x0080) /*!<PE Interrupt Enable */
#define USART_CR1_PEIE ((uint16_t)0x0100) /*!<PE Interrupt Enable */
#define USART_CR1_PS ((uint16_t)0x0200) /*!<Parity Selection */
#define USART_CR1_PCE ((uint16_t)0x0400) /*!<Parity Control Enable */
#define USART_CR1_WAKE ((uint16_t)0x0800) /*!<Wakeup method */
#define USART_CR1_M ((uint16_t)0x1000) /*!<Word length */
#define USART_CR1_UE ((uint16_t)0x2000) /*!<USART Enable */
/****************** Bit definition for USART_CR2 register *******************/
#define USART_CR2_ADD ((uint16_t)0x000F) /*!<Address of the USART node */
#define USART_CR2_LBDL ((uint16_t)0x0020) /*!<LIN Break Detection Length */
#define USART_CR2_LBDIE ((uint16_t)0x0040) /*!<LIN Break Detection Interrupt Enable */
#define USART_CR2_LBCL ((uint16_t)0x0100) /*!<Last Bit Clock pulse */
#define USART_CR2_CPHA ((uint16_t)0x0200) /*!<Clock Phase */
#define USART_CR2_CPOL ((uint16_t)0x0400) /*!<Clock Polarity */
#define USART_CR2_CLKEN ((uint16_t)0x0800) /*!<Clock Enable */
#define USART_CR2_STOP ((uint16_t)0x3000) /*!<STOP[1:0] bits (STOP bits) */
#define USART_CR2_STOP_0 ((uint16_t)0x1000) /*!<Bit 0 */
#define USART_CR2_STOP_1 ((uint16_t)0x2000) /*!<Bit 1 */
#define USART_CR2_LINEN ((uint16_t)0x4000) /*!<LIN mode enable */
/****************** Bit definition for USART_CR3 register *******************/
#define USART_CR3_EIE ((uint16_t)0x0001) /*!<Error Interrupt Enable */
#define USART_CR3_IREN ((uint16_t)0x0002) /*!<IrDA mode Enable */
#define USART_CR3_IRLP ((uint16_t)0x0004) /*!<IrDA Low-Power */
#define USART_CR3_HDSEL ((uint16_t)0x0008) /*!<Half-Duplex Selection */
#define USART_CR3_NACK ((uint16_t)0x0010) /*!<Smartcard NACK enable */
#define USART_CR3_SCEN ((uint16_t)0x0020) /*!<Smartcard mode enable */
#define USART_CR3_DMAR ((uint16_t)0x0040) /*!<DMA Enable Receiver */
#define USART_CR3_DMAT ((uint16_t)0x0080) /*!<DMA Enable Transmitter */
#define USART_CR3_RTSE ((uint16_t)0x0100) /*!<RTS Enable */
#define USART_CR3_CTSE ((uint16_t)0x0200) /*!<CTS Enable */
#define USART_CR3_CTSIE ((uint16_t)0x0400) /*!<CTS Interrupt Enable */
/****************** Bit definition for USART_GTPR register ******************/
#define USART_GTPR_PSC ((uint16_t)0x00FF) /*!<PSC[7:0] bits (Prescaler value) */
#define USART_GTPR_PSC_0 ((uint16_t)0x0001) /*!<Bit 0 */
#define USART_GTPR_PSC_1 ((uint16_t)0x0002) /*!<Bit 1 */
#define USART_GTPR_PSC_2 ((uint16_t)0x0004) /*!<Bit 2 */
#define USART_GTPR_PSC_3 ((uint16_t)0x0008) /*!<Bit 3 */
#define USART_GTPR_PSC_4 ((uint16_t)0x0010) /*!<Bit 4 */
#define USART_GTPR_PSC_5 ((uint16_t)0x0020) /*!<Bit 5 */
#define USART_GTPR_PSC_6 ((uint16_t)0x0040) /*!<Bit 6 */
#define USART_GTPR_PSC_7 ((uint16_t)0x0080) /*!<Bit 7 */
#define USART_GTPR_GT ((uint16_t)0xFF00) /*!<Guard time value */
配置1，2，3，4，5一模一样
你的stm32f10x.h文件，UART4、5的定义在里面呢。
截图40.jpg