mcu & soc

Zynq-7000 Connectivity Using the uC/OS BSP

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Close up view of the Digilent Zybo development board showing the Xilinx Zynq-7000 SoC.

In two previous articles, I have looked at using Micrium’s uC/OS RTOS on the Xilinx Zynq-7000. I only covered kernel and storage. This time, I will be exploring some connectivity options in combination with the Digilent Zybo. Namely, using Micrium’s USB device solution and HTTP server through the Zybo’s Ethernet port. This is also a perfect opportunity to try the new and improved release of Vivado 2017.1.

The plan is to use the Zybo on-board SD Card to hold the html files for the HTTP server. To make it more interesting, instead of just copying the files using a PC, I’ll turn the Zybo into a USB mass storage device to access the SD Card.

Digilent ZYBO development board with the Xilinx Zynq-7000 system on chip and FPGA.
Figure 1 – Digilent ZYBO

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i.MX7D M4 Bare-Metal Bring-up and Benchmark

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Close up shot of the NXP i.MX7 Sabre development board showing the SoC BGA chip.

Following up on the last piece about the NXP i.MX 7, this article looks at the ARM Cortex-M4 companion of the Cortex-A7 present in the i.MX 7. Or to put it another way, a Kinetis-on-chip since it’s very similar to a high-end Cortex-M4 based Kinetis. This article summarizes my experience writing a brand new bare … Read more

i.MX7D Sabre Bare-Metal Bring-up and Benchmark

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Close up shot of the NXP i.MX7 Sabre development board showing the SoC BGA chip.

One of our specialties at JBLopen is board bring-up, either for bare metal or various commercial and open source RTOSes. Despite the number of different platforms, CPU architectures and RTOSes out there, low level bring-up, BSP and driver development are rarely discussed in blogs and articles on the web. The same can be said about … Read more

snickerdoodle says Hello World!

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krtkl snickerdoodle with connector down configuration and SD Card installed in cage.

What would make a better first post about embedded software than a hello world project on a brand-new development board. It’s the krtkl snickerdoodle I received with much excitement last week. The SoM is based on the Xilinx Zynq-7000 SoC along with storage and wifi on the SoM. In these next series of articles, I’m … Read more