USART in SPI mode for reading 128 bit stream at 25,000 bps avrcandies wrote:
high if the original analogue signal is rising, low for falling(status quo for flat). Depending on the amount of hysteresis, and preceding LPF, it can be a...
USART in SPI mode for reading 128 bit stream at 25,000 bps There are no bits, as such. Once again, I fear I have used confusing terms. I'm only interested in the general shape of the input. It's a rectangular waveform, high if the...
Thursday, 14 May 2020 - 14:24
USART in SPI mode for reading 128 bit stream at 25,000 bps sparrow2 wrote:What else do you need to do while this happen?
Like I said, find the best match from 40 or so stored 128 bit patterns.
No start and stop bits, I believe they're not...
Thursday, 14 May 2020 - 13:22
USART in SPI mode for reading 128 bit stream at 25,000 bps N.Winterbottom wrote:
John_A_Brown wrote:
I guess the question is, has amyone [sic] done this, and are there any gotchas.
I've done this in reverse - to generate an arbitrary bit...
Thursday, 14 May 2020 - 12:29
USART in SPI mode for reading 128 bit stream at 25,000 bps Thanks, I found that thread a couple of days ago. It has some neat tricks, but I might just go for a 256 byte lookup table from the outset. Right now I have no idea about timing....
Thursday, 14 May 2020 - 06:07
USART in SPI mode for reading 128 bit stream at 25,000 bps It's 128 bits every 10mS or so. I can do.it anyway, I just wondered if anyone had any insight into using the SPI hardware. What else does the app have do? It has to find the best...
What are examples of RTOS clawson wrote:What has FreeRTOS got to do with ATMs? Do you really think any bank developing/operating something as secure as an ATM would be doing so with some homebrew, open...
avrcandies wrote: high if the original analogue signal is rising, low for falling(status quo for flat). Depending on the amount of hysteresis, and preceding LPF, it can be a...
sparrow2 wrote: high if the original analogue signal is rising, low for falling(status quo for flat). One bit that has 3 levels ? No. Two levels. Status quo was...
There are no bits, as such. Once again, I fear I have used confusing terms. I'm only interested in the general shape of the input. It's a rectangular waveform, high if the...
sparrow2 wrote:What else do you need to do while this happen? Like I said, find the best match from 40 or so stored 128 bit patterns. No start and stop bits, I believe they're not...
N.Winterbottom wrote: John_A_Brown wrote: I guess the question is, has amyone [sic] done this, and are there any gotchas. I've done this in reverse - to generate an arbitrary bit...
Thanks, I found that thread a couple of days ago. It has some neat tricks, but I might just go for a 256 byte lookup table from the outset. Right now I have no idea about timing....
It's 128 bits every 10mS or so. I can do.it anyway, I just wondered if anyone had any insight into using the SPI hardware. What else does the app have do? It has to find the best...
"Does your data stream have the needed start and stop bit's ? " No.
ki0bk wrote: John_A_Brown wrote:and are there any gotchas. I guess that depends on what you will do with the data, not much room to store it..... Jim Only 16 bytes...
Yes. Bit time is 40uS. I guess the question is, has amyone done this, and are there any gotchas.
https://www.ebay.co.uk/itm/Calib... No idea if these are any use.
clawson wrote:What has FreeRTOS got to do with ATMs? Do you really think any bank developing/operating something as secure as an ATM would be doing so with some homebrew, open...
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