Another week has passed in AESTE and although Dr Shawn was not around for the time but there was no lacking in my learning curve. My senior interns (Sumia, KY and Islam) had always tried to pass down the knowledge they have earned throughout. I am more than blessed to have them around to guide me through and allow me to learn through their experience I must admit, it is still quite a lot to absorb all together. I think Read more
FreeRTOS capable to run multiple tasks by using tasks switching method. Scheduler is the kernel who doing the task switching operation. The scheduler will changing the task into running state when it is require. But when the yield, block or suspend functions is called, the scheduler will switching other task in ready condition into the running state. Whereby only one task able in running state at a time. This week I spent the time on doing the context switching function Read more
This week my task focus is to survey about the price of electronic components for a project. This is my first time doing such a survey for a real industrial project. I get to see how a Bill of Material (BOM) is listed. The first thing I learnt is the octopart website. At the first look, the website shows price information from various distributors for the same component. It is like a one-stop website where you can find price from Read more
This week I continue the work on the SSL. After I included all the necessary files, it return errors of ‘TCB_uRam’ cannot fit the section. At first I thought it was running out of RAM space like another case that I experience before. Since the SSL is a very large file, therefore I disable all the unnecessary stack. However, after disabling most of the stack it still return the same error. By referring on the datasheet, it seems that the Read more
I am officially in the midst of my internship now, and decided to try something new to me, which is chip design. I was given the tools of Atyls Spartan 6 FPGA development board for the development of chip design. The Xilinx ISE tool There are many documentations provided by Xilinx, it is just matter of time to finish all of them, or to choose the important ones and focus on them. I found that this ISE in-depth tutorial is Read more
This week I was given another task about the CCD optical sensors. CCD is called Charge-coupled device where it is capable of transforming light pattern from an image into an electric charge pattern just like an electronic image. It can collect, store and transport electrical charge from one element to another. Each pixels are represented by p-doped MOS capacitors. It is widely used in professional, medical, and scientific applications as it can provide high-quality image data. The active pixel sensors (CMOS) are used in applications with Read more
This week I tried to send and receive the http headers fields. For sending the header fields from the server, the task was easier since we just needed to simply send out the suitable. By referring on the microchip demo code, I wrote a code to send the required response message. The response messages of each stage were tested by using the curl command. For receiving the header messages, it was more difficult since there are general format needed to Read more
Although this was not my final week (my next week is), yet this is my final blog. As next week we will be working on something different (writing tutorials), I wanted this blog to be my goodbye letter. 29 weeks are over, during which, I learned a lot, I worked a lot, I’ve got scolded A LOT, and, although now I regret it, I got into disputes with my “mentor” a lot. I am really sad that it is over Read more
Last week, I found that the value pxCurrentTCB is different from the instruction address of my task created. After discuss with Dr Shawn, he told me that the value of pxCurrentTCB should be different from the instruction address of task created inside elf file. The pxCurrentTCB is holding the stack address of a task. So I found my concept is wrong and pxCurrentTCB is holding the correct stack address. When the task created by calling function xTaskCreate, a TCB will be Read more
With minimum expectation and completely blind faith I had arrived at AESTE for the beginning of my internship of 12 weeks. Just to give a background, before I proceed with my blog, I am a Bangladeshi student studying Electrical and Electronic Engineering in Malaysia and I have been here for 3 years now. It was important to mention as it is very rare for people to encounter Bangladeshi, that too a girl, studying Engineering in Malaysia. Getting back to my Read more