Chronicles from our peeps.
This week I dig deeper into identifying the TCPIP Stack bug. Ideal Case Based on the document UG380 and XAPP502, ‘init_b’ of FPGA should be HIGH (reading from PIC32), if it was LOW during configuration means there is an error, ‘init_b’ can also be pulled LOW to delay configuration, in Read more…
This week I tried to show the data values on the simulator schematic when performing data transmission with UART, MSPI or I2C. When successfully reading or writing data, user will be allowed to see that the data in hexadecimal values are displayed beside the related ports of the module. To 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…
More on cURLpp I talked about cURLpp in my last post. There’s much more to it than just uploading files to Google Drive endpoints. A few things I discovered is :- curlpp::infos This allows certain response info to be obtained directly. There are a list of info obtained, which can Read more…
This week I have been trying to make the read and readstring function working in the simulator. There are two main problems: Read function can only return the same data byte every time it is called. For example, when a string “HELLO” is written to the data register, read function Read more…
This week I integrate my previous TLS TCP Server code onto ‘the board’ – PIC32MZ. DHCP enabled & Fixed IP adress test First I experiment with having DHCP enabled on MHC. Using ‘tcpip_discoverer’ from Harmony to fetch the assign IP address. java -jar tcpip_discoverer.jar The discoverer tool is very useful to Read more…
This week I am rewriting the read and write functions in C programming for UART. Dr Shawn really taught me a lot about the easy and correct way to write the codes. Next I need to make sure that the information are stored to the respective address correctly when the instructions Read more…
So.. I was using system() to perform CURL requests in my application. There were a few downsides to this:- Error handling of response. Messy codes. My boss talked about using the cURLpp library to replace the existing system() curl mechanism. So this week I tried my hand on it in Read more…
This week Dr Shawn has explained to me the internal registers of UART, SPI and TWI. Basically these modules has two registers: status register and data register. Status register, from its name we know that this register contains information about the state of the device. Data register contains the data Read more…
This week I am working with UART (Universal asynchronous receiver/transmitter). UART is a device that used for serial communication over a peripheral device serial port or computer. UART takes bytes of data and transmits the individual bits in a sequential fashion. UART consists of a data bus with several data Read more…