Timeline for Why do articles use the term "UART" instead of "serial port"?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Sep 24, 2022 at 17:50 | history | edited | john_e | CC BY-SA 4.0 | Spelling corrections |
| Nov 22, 2017 at 11:02 | comment | added | Blrfl | @mnem You'll find an 8251 UART on the Imsai 8080 SIO (Serial I/O) card (ca. 1976). The later Multi-I/O card had a Western Digital (yes, that Western Digital) TR1602. | |
| Nov 16, 2017 at 10:52 | comment | added | Raffzahn | @AndrejaKo yeah, I see. Much the same way as using a Windows PC to drive a nail into a wall and call it a GUI application :) | |
| Nov 16, 2017 at 10:40 | comment | added | AndrejaKo | @Raffzahn Well, that depends a lot on the definition of "has nothing to do" :). Yes, it is abuse, but it's being done using UART. | |
| Nov 16, 2017 at 8:27 | comment | added | Raffzahn | @AndrejaKo :)) Ahh, the PonyProg (original page here: lancos.com/prog.html ). I was waiting for that. While it's true that control signals of the PC UART are used, it has nothing to do with the UART. The software is only using these lines as I/O ports for bitbanging. Could be any other 4- bit I/O as well. Abusing the UART doesn't realy make a case. | |
| Nov 16, 2017 at 6:18 | comment | added | AndrejaKo | @Raffzahn This seems to be an example: instructables.com/id/AVR-ISP-programmer The programer software is set up so that it provides clock via DTR pin, if I remember correctly. | |
| Nov 15, 2017 at 21:45 | comment | added | Raffzahn | @AndrejaKo Mind to give an example? I'm doing SPI since quite some time in many variations, but I never came across a way where a standard UART was used to drive SPI. | |
| Nov 15, 2017 at 20:11 | comment | added | AndrejaKo | @Raffzahn Actually, it's not so uncommon to use UART to communicate using SPI. Usually, the DTR or RTS line is used as clock. Many "serial" programmers for AVR used this "feature". | |
| Nov 15, 2017 at 17:42 | comment | added | mnem | @tofro Fair enough, I stand corrected. I've just never heard of the actual use of a UART in anything home-computer related other than the PC before. | |
| Nov 15, 2017 at 17:39 | comment | added | Solomon Slow | @mnem, UART chips were available to purchase several years prior to the release of the original IBM-PC. en.wikipedia.org/wiki/… | |
| Nov 15, 2017 at 12:53 | comment | added | tofro | @mnem Agree to your first sentence, disagree with the second. UART is in no way IBM-PC-specific. The TI TMS 6011 had nothing to do with an IBM-PC, appeared in 1977 and was called an UART, for examle | |
| Nov 14, 2017 at 21:43 | comment | added | mnem | @Sam Except you're forgetting that there are a number of retro computers that have a standard RS-232 serial port that is not driven by a UART chip. The UART chip and terminology is IBM-PC specific. | |
| Nov 14, 2017 at 14:52 | comment | added | Sam | Although you are not wrong, I would clarify that a lot of people consider the RS-232 port on the back of their computer a "serial port" and in that case a "serial port" uses a UART. | |
| Nov 14, 2017 at 12:25 | history | answered | Raffzahn | CC BY-SA 3.0 |