Dayrider10

Ahh ok that makes way more sense! Thank you! Let me try those changes out. Initially I was thinking that I needed UART1 for STDIN (which believe it or not I did look at the BSP and it still didn't click to me lol), which when I say it out loud doesn't make too much sense. Thank you for pointing me to the right place in the manuals. I've had them up but sometimes I find it hard to locate what I need. Again all still a learning process! Let me make those changes.

Hello! This is my first post here and hopefully I don't break any forum rules! I am a software engineer by profession but I am starting to learn FPGAs. I have an ArtyZ7-10 board. I have been trying these past couple of days to get a simple bare metal program to work. The program is a simple Hello World that is sent over the UART communication every 5 seconds. Below is my block design It's a pretty simple block diagram using the ZYNQ7 PS. I have enabled UART1 as seen below (well also UART0 but ignoring that for now) My code is below (using the example Hello World program) /****************************************************************************** * Copyright (C) 2023 Advanced Micro Devices, Inc. All Rights Reserved. * SPDX-License-Identifier: MIT ******************************************************************************/ /* * 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 "sleep.h" #include "platform.h" #include "xil_printf.h" int main() { init_platform(); // Please just keep printing out something. Or print anything at all please while (1) { printf("Hello World!\r\n"); usleep(5000000); } cleanup_platform(); return 0; } Now when I tested this why the Arty board connected up (the jumpers are on the JTAG and I am using an external 15v power supply), it programs the board correctly, but then nothing seems to happen. The RX led does not send anything. I downloaded the out of box demo code. I first switched out my design with that and it didn't work. I then switched out my generated ps7_init.tcl file with the out of box demo's ps7_init.tcl file and it worked. Using the same out of box ps7_init.tcl file, I switched back to my bitstream design and it still worked. So I am having trouble understanding why the out of box ps7_init file would work but my generated one won't set up UART correctly. I have created a wrapper in my design and I did export it out to the XSA file and imported that correctly. Any time I make a change to the design (which really doesn't happen), I regenerate the wrapper and then re-export and then update the XSA reference in Vitis. Does anyone have an idea of where I am going wrong? Again I am pretty new to the realm of FPGAs and hardware so I am sorry if I ask any dumb questions. EDIT: I should also note that I do have my serial terminal set up correctly. I am using Tera Term. I can provide my ps7_init file upon request but I don't know how much help that would be.