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Recent Forum Posts

Re: USB to send ASCII characters to PC

Yes, the focus is a thing that bothers me and I wish I knew a way to deal with it.

If for any reason (and windows has a lot, I am sure) the focus is lost, data entry is lost too...
Ioannis Today, 00:18

Re: HSERIN using EUSART RX interrupt - how does it really work?

Thanks Henrik, thanks Richard.

I have some homework to do following your info :)
flotulopex Yesterday, 21:11

Re: HSERIN using EUSART RX interrupt - how does it really work?

probably not , on interrupt is not suitable for processing async data streams in any useful way without flow control
if there is a "real" foreground task being processed incurring data loss is...
richard Yesterday, 12:04

Re: HSERIN using EUSART RX interrupt - how does it really work?

First, there's the actual shiftregister into which the data is shifted bit-by-bit as it's received. You don't have access to this register (AFAIK).
Once the correct number of bits have been shifted...
HenrikOlsson Yesterday, 12:01

HSERIN using EUSART RX interrupt - how does it really work?

Thank you Richard,

Actually, my program works on a 8MHz basis - it should be more than enough to handle 9600bps serial data, no?

I'd like to stick to the very basics since I'm not an...
flotulopex Yesterday, 11:22

Re: USB to send ASCII characters to PC

As you will be creating another keyboard, any output will be sent to what ever window has focus.
towlerg Yesterday, 09:41

Re: HSERIN using EUSART RX interrupt - how does it really work?

since most chips have a rxbuffer you could also take advantage of

ISR:
rx_hit=1
while pir1.5
sdata[rx_count]=RCREG
rx_count=rx_count+1
if rx_count==5...
richard - 23rd January 2021, 22:34

Re: HSERIN using EUSART RX interrupt - how does it really work?

i have great reservation that "on interrupt" will be successful @9600 with a 4mhz osc, use dt ints

puts your 690 in a blocking loop until 5 characters have been received, no matter how long it...
richard - 23rd January 2021, 22:26

HSERIN using EUSART RX interrupt - how does it really work?

Hi all,

I've made this small program to learn how the EUSART RX interrupt works....and it works BUT :biggrin:

Yes, the code below works but I'm getting confused when I think about having...
flotulopex - 23rd January 2021, 21:40

Re: USB to send ASCII characters to PC

George,
I do not understand where flow control is needed.

Ioannis
Ioannis - 23rd January 2021, 20:21

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Knowing our Customers

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Our contribution (WEEE)
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If you have purchased from us, something that could be described as 'E.E.E.'('Electrical and Electronic Equipment') , then when you dispose of it, it becomes 'W.E.E.E.' (the 'W' stands for 'waste') and it therefore needs to be disposed of correctly. You may do this yourself, but if you'd rather not, then contact us, we will dispose of it for you, in the correct way. Which we will do, and we won't charge you for it.
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