}voiduart1handler(void*CallBackRef, u32 Event,u32 EventData){//u32 recvcnt;if(Event==XUARTPS_EVENT_RECV_DATA){/*清除中断标志*/XUartPs_WriteReg(uart_cfg->BaseAddress, XUARTPS_ISR_OFFSET, XUARTPS_IXR_RXOVR) ; XUartPs_Recv(&uart, RecvBuffer,500) ;//设置为最大,这样有多少就会接收...
compatible = "rockchip,rk3568-uart", "snps,dw-apb-uart"; reg = <0x0 0xfe6a0000 0x0 0x100>; interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>; clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>;...
1.该段内存空间的长度是Len = tail-head; 2.read pointer是读数据的起始位置,当读取完N数据之后要移动N个单位长度的偏移,当有addlen长度的数据要存入到环形缓冲区,若addlen + write pointer > tail时,write pointer将存入len1 = tail - write pointer个数据长度,然后write pointer回到head位置,将剩下的len2 ...
DGUS_SendByte(DGUS_CMD_W_REG); //指令 DGUS_SendByte(RegAddr); //地址 DGUS_SendByte((uint8_t)(Data>>8)); //数据 DGUS_SendByte((uint8_t)(Data&0xFF)); } //往DGDS屏指定地址写一字节数据 void DGUS_DATA_WriteWord(uint16_t DataAddr, uint16_t Data) { DGUS_SendByte(DGUS_FRAME_...
{frame_status=STATUS_HEAD1;index=0;}break;caseSTATUS_HANDLE_PROCESS:buffer[index++]=data;len=buffer[LEN_POS];if(index-3==len){crc=embedded_mbcrc16(buffer,index-2);if(crc==(buffer[index-1]|buffer[index-2]<<8)){call_reg_cb(buffer,index,channel,buffer[CMD_POS]);}index=0;frame_...
模式3rs485-software-halfduplex(de/re 独立输出) (使能uart控制器的rs485模式; 通过uart模块内部reg来控制 de/re 信号) a,使能uart控制器的 rs485模式,并按照电压转换芯片的特性,设置de/re polarity b, 设置rs485的模式为 sw-half-duplex, 设置 de-timing寄存器; 设置 de/re turnaround 寄存器。
1.uart初始化 #defineLCR_BAUD_LATCH (1<<7)// 1000 0000#defineLCR_EIGHT_BITS (3<<0)// 11#defineFCR_FIFO_ENABLE (1<<0)// 1#defineFCR_FIFO_CLEAR (3<<1)// 110#defineIER_RX_ENABLE (1<<0)// 1#defineIER_TX_ENABLE (1<<1)// 10voiduartinit(void){// 关闭中断WriteReg(IER,0x...
59 XUartPs_WriteReg(uart_instance_ptr->Config.BaseAddress, 60 XUARTPS_ISR_OFFSET, XUARTPS_IXR_RXOVR) ; 61 } 62 XUartPs_SendByte(XPAR_PS7_UART_0_BASEADDR,rec_data); 63 } 64 65 //串口中断初始化 66 int uart_intr_init(XScuGic *intc, XUartPs *uart_ps) 67 { 68 int status; ...
reg [31:0] cnt; always@(posedge CLOCK or negedge RST_n) begin if(!RST_n) cnt <= 0; else if(En_Sig) cnt <= cnt + BPS_CNT; end //--- //RTL2: Equal division of the Frequency division clock reg cnt_equal; always@(posedge CLOCK or negedge RST_n) begin if(!RST_n) cnt_eq...
59 XUartPs_WriteReg(uart_instance_ptr->Config.BaseAddress, 60 XUARTPS_ISR_OFFSET, XUARTPS_IXR_RXOVR) ; 61 } 62 XUartPs_SendByte(XPAR_PSU_UART_0_BASEADDR,rec_data); 63 } 64 65 //串口中断初始化