add mini-yatcpu

mini-yatcpu/vivado/z710/helloworld.c

@@ -0,0 +1,139 @@
+/******************************************************************************
+*
+* Copyright (C) 2009 - 2014 Xilinx, Inc.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+/*
+ * helloworld.c: simple test application
+ *
+ * This application configures UART 16550 to baud rate 9600.
+ * PS7 UART (Zynq) is not initialized by this application, since
+ * bootrom/bsp configures it to baud rate 115200
+ *
+ * ------------------------------------------------
+ * | UART TYPE   BAUD RATE                        |
+ * ------------------------------------------------
+ *   uartns550   9600
+ *   uartlite    Configurable only in HW design
+ *   ps7_uart    115200 (configured by bootrom/bsp)
+ */
+
+#include <stdio.h>
+#include "platform.h"
+#include "xil_printf.h"
+//#include "xuartps_hw.h"	// already include in xuartps.h
+#include "xuartps.h"
+#include "xparameters.h"
+
+XUartPs uart_ps;	//  instance of the UART device
+
+
+
+
+int main()
+{
+    init_platform();
+    xil_printf("\nHello World\n\r");
+
+
+    // test on UART ps
+    int BUFFER_SIZE = 16;	// do not set too much to overflow FIFO
+    char send_buffer[BUFFER_SIZE + 1];
+    char recv_buffer[BUFFER_SIZE + 1];
+    int status = 0;
+    XUartPs_Config *config;
+
+
+    for (int i = 0; i < BUFFER_SIZE; i++) send_buffer[i] = i % 256;
+
+    config = XUartPs_LookupConfig(XPAR_XUARTPS_0_BASEADDR);	// CHANGE UART PORT HERE!!!
+    if (config == NULL) {
+    	printf("Error in config lookup!\n");
+    	return XST_FAILURE;
+    }
+
+
+    status = XUartPs_CfgInitialize(&uart_ps, config, config->BaseAddress);
+    if (status != XST_SUCCESS) {
+    	printf("Error in cfg initialize!\n");
+		return XST_FAILURE;
+    }
+	XUartPs_SetBaudRate(&uart_ps, 115200);
+
+    /* Check hardware build. */
+	status = XUartPs_SelfTest(&uart_ps);
+	if (status != XST_SUCCESS) {
+		printf("Error in self test!\n");
+		return XST_FAILURE;
+	}
+
+
+	/* Configure UART mode */
+	int mode = XUartPs_ReadReg(uart_ps.Config.BaseAddress, XUARTPS_MR_OFFSET);
+	printf("original mode = 0x%x\n", mode);
+	XUartPs_WriteReg(uart_ps.Config.BaseAddress, XUARTPS_MR_OFFSET,
+			(XUARTPS_MR_STOPMODE_2_BIT | XUARTPS_MR_PARITY_NONE | XUARTPS_MR_CHARLEN_8_BIT));
+
+
+
+    XUartPs_SetOperMode(&uart_ps, XUARTPS_OPER_MODE_NORMAL);
+
+
+
+
+    int recv_cnt = 0;
+    while (1) {
+    	int recved = XUartPs_Recv(&uart_ps, (u8*)(recv_buffer + 0), BUFFER_SIZE);
+    	recv_cnt += recved;
+    	recv_buffer[recv_cnt] = 0;	// end
+    	if (recv_cnt >= 1) {
+//    		printf("%s", recv_buffer);
+//    		printf("%i\n", recv_buffer[0]);
+
+    		/* print string manually */
+    		for (int j = 0; j < BUFFER_SIZE; j++) {
+    			if (recv_buffer[j] != 0) {
+    				printf("%c", recv_buffer[j]);
+    			} else {
+    				break;
+    			}
+    		}
+
+    		recv_cnt = 0;
+    	}
+    }
+
+    /* Restore to normal mode. */
+	XUartPs_SetOperMode(&uart_ps, XUARTPS_OPER_MODE_NORMAL);
+
+
+    cleanup_platform();
+    return 0;
+}