For example, I was surely not going to use DRAM again. Some choices were a litle harder, but not too much so. I picked a simple microSD slot that is easy to solder and easy to buy: Amphenol 1140084168. For storage, for example, microSD is perfect - easy to interface with, widely available, cheap. Some things were pretty easy to decide on. And, finally, I wanted the whole thing to be cheap and compact enough to serve as my business card. The original project required a USB-to-serial adapter. Additionally, I wanted the device to be easy to interface with. A part of this wish was also that someone could actually assemble one, meaning that I had to select components that are actually buyable in the middle of the current ongoing shortage of, well, everything. This meant no components with tight spacing, no components with too many pins, and no components with contacts hidden underneath them. Second, I wanted it to be easy to assemble for anyone.
This would make using the device practical and not a test of patience. First, I wanted the new design to be speedy enough to boot in a few minutes and reply to commands in seconds. So what could I improve? A number of things. Cool, but I doubt that any one of those people who built one of those devices based on my design ever waited for the device to boot more than once. The effective speed was 10KHz, the boot time was 6 hours. The main problem was that is was too slow to be practical. I do not think anyone has beaten it - nobody's managed to run Linux on a lower-end device than that 8-bit AVR. It was kind of a cool record at the time.
Runjs in linux update#
UPDATE 1: See " Version 2" Table of ContentsĪ long long time ago (in 2012) I ran Linux on an 8-bit AVR. My business card runs Linux (and Ultrix), yours can too UPDATE 2: Firmware v2.1.1 - BBQSPI memory access sped up by 11% for 4-chip case, 6% for others.
0 kommentar(er)
