This week I spent most of my time finishing up the schematics. The updated board will have 2 complete SPI and 1 complete UART connection, between the PIC32 and the FPGA. The PIC32 pin availability for these connections can be checked from harmony configurator in MPLABX. You might need to Read more…
I started the week by looking at alternative power supply designs. The problem with the current design is that it utilizes 2 bulky linear voltage regulators. There are many single chip solutions for the 3 voltage levels required. However, they are not really cost effective, thus can not be used. Read more…
This week, after some more reading about the board and the connections and also some more reading on PCB design, I started using Kicad. Which is a very powerful PCB design software and it can be used for highly complex projects. After watching a few tutorials online and going through Read more…
This week which is my third, here at Aeste, was more about reading and understanding the current board. I started the week by redoing the Board Architecture that I worked on last week. At the time I did not fully understand what was asked, so I ended up doing it Read more…
By SD card working as stated in the title, I actually meant that it has only successfully established a connection to the SD card, and is far from being able to write to or read from the SD card. The connection is verified by sending a reset command to the SD Read more…
After successfully integrating the FPGA code with ethernet and USB serial, I proceeded to create a test firmware to establish and verify a connection with a micro SD card. The first thing to note about this project is that the SD card is connected to the PIC32 through the FPGA, Read more…
The FPGA project has been succesfully integrated into the current project containing the usbcdc and ethernet. Now the test firmware has working ethernet, usb serial port, and also successfully configures the FPGA. My attempt at integrating the FPGA project with the other two did not work initially, with the result Read more…
This week I started by trying to modify the FPGA code so that it would transfer in chunks of data rather than all in one go. Turns out a lot of the codes are not needed so Dr Shawn rewrote everything into less than 10 lines, this time using the Read more…
The FPGA is now configurable using the pic32mz. The cause of the problem was identified as being the clock to the FPGA not being set, and also the ucf file declared an unconnected pin, J13 as the clock pin. The problem was solved by enabling REFCLKOx in the Harmony Configurator, System Read more…
This week I continue trying to figure out how to ‘download’ a huge file with TCP protocol. Set up a USB cdc com port to ease debugging. Fixing ‘init_b’ staying LOW. TCP Server looping READ socket To be able to ‘download’ or I should say read a file being uploaded Read more…