我先写的TCP客户端程序，可以拼通板子，但是读写寄存器都不对，莫名其妙。
我建了一个Harmony 3的工程，谁知生成的代码太难懂了，调用起来很不方便。
我自己写了几个
- void SERCOM6_SPI_Write(unsigned char pTransmitData)
- {
- if(SERCOM6_SPI_IsTransmitterBusy()==false)
- {
- SERCOM6_REGS->SPIM.SERCOM_DATA=pTransmitData;
- while((SERCOM6_REGS->SPIM.SERCOM_INTFLAG&0x02)==0);
- SERCOM6_REGS->SPIM.SERCOM_INTFLAG|=0x02;
- }
- }
这是写一个字节函数。
- uint8_t SERCOM6_SPI_Read(void)
- {
- uint8_t temp;
- if(SERCOM6_SPI_IsTransmitterBusy()==false)
- {
- while((SERCOM6_REGS->SPIM.SERCOM_INTFLAG&0x04)==0);
- temp=SERCOM6_REGS->SPIM.SERCOM_DATA;
- return temp;
- }
- return 0;
- }
这是读一个字节函数。
- uint8_t SERCOM6_SPI_Read1(void)
- {
- uint8_t temp;
-
- temp=SERCOM6_REGS->SPIM.SERCOM_DATA;
- return temp;
- }
这是虚读。
把它们放在w5500.c的函数里调用
- void SPI1_Send_Byte(unsigned char dat)
- {
- SERCOM6_SPI_Write(dat);
- }
- unsigned char Read_W5500_1Byte(unsigned short reg)
- {
- unsigned char i;
-
-
- GPIO_PC06_Clear();
- SPI1_Send_Short(reg);//ͨ¹ýSPI1д16λ¼Ä´æÆ÷µØÖ·
- SPI1_Send_Byte(FDM1|RWB_READ|COMMON_R);//ͨ¹ýSPI1д¿ØÖÆ×Ö½Ú,1¸ö×Ö½ÚÊý¾Ý³¤¶È,¶ÁÊý¾Ý,Ñ¡ÔñͨÓüĴæÆ÷
- i=SERCOM6_SPI_Read1();
- i=SERCOM6_SPI_Read();
- GPIO_PC06_Set();
- return i;//·µ»Ø¶ÁÈ¡µ½µÄ¼Ä´æÆ÷Êý¾Ý
- }
还有，我看了数据手册，把初始化也改了
- void SERCOM6_SPI_Initialize(void)
- {
- /* Instantiate the SERCOM6 SPI object */
- sercom6SPIObj.callback = NULL ;
- sercom6SPIObj.transferIsBusy = false ;
- sercom6SPIObj.txSize = 0U;
- sercom6SPIObj.rxSize = 0U;
- /* Selection of the Character Size and Receiver Enable */
- //SERCOM6_REGS->SPIM.SERCOM_CTRLB = SERCOM_SPIM_CTRLB_CHSIZE_8_BIT | SERCOM_SPIM_CTRLB_RXEN_Msk ;
- SERCOM6_REGS->SPIM.SERCOM_CTRLB = 0x0002C200;
- /* Wait for synchronization */
- while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)
- {
- /* Do nothing */
- }
- /* Selection of the Baud Value */
- SERCOM6_REGS->SPIM.SERCOM_BAUD = (uint8_t)SERCOM_SPIM_BAUD_BAUD(SERCOM6_SPIM_BAUD_VALUE);
- /* Configure Data Out Pin Out , Master Mode,
- * Data In and Pin Out,Data Order and Standby mode if configured
- * and Selection of the Clock Phase and Polarity and Enable the SPI Module
- */
- //SERCOM6_REGS->SPIM.SERCOM_CTRLA = SERCOM_SPIM_CTRLA_MODE_SPI_MASTER | SERCOM_SPIM_CTRLA_DOPO_PAD0 | SERCOM_SPIM_CTRLA_DIPO_PAD0 | SERCOM_SPIM_CTRLA_CPOL_IDLE_LOW | SERCOM_SPIM_CTRLA_CPHA_LEADING_EDGE | SERCOM_SPIM_CTRLA_DORD_MSB | SERCOM_SPIM_CTRLA_ENABLE_Msk | SERCOM_SPIM_CTRLA_RUNSTDBY_Msk;
- //SERCOM6_REGS->SPIM.SERCOM_CTRLA = 0x0030018e;
- SERCOM6_REGS->SPIM.SERCOM_CTRLA = 0x0130018e;
- /* Wait for synchronization */
- while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)
- {
- /* Do nothing */
- }
- SERCOM6_REGS->SPIM.SERCOM_CTRLC = 0x00000000;
- /* Wait for synchronization */
- while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)
- {
- /* Do nothing */
- }
- SERCOM6_REGS->SPIM.SERCOM_DBGCTRL=0;
- /* Wait for synchronization */
- while((SERCOM6_REGS->SPIM.SERCOM_SYNCBUSY) != 0U)
- {
- /* Do nothing */
- }
- }
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