UART support in ATTiny261/461/861

bgoolsby

Subject:

UART support in ATTiny261/461/861

· Posted: 07.10.2014 - 15:35 · #1

The ATTiny261/461/861 series has a universal serial interface (USI). Can AVRco use this as a standard UART? In the standard driver manual I see the section "3.11.5 Advanced Functions for Controller with USART" - does this apply to the USI interface?

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Subject:

Re: UART support in ATTiny261/461/861

· Posted: 07.10.2014 - 17:37 · #2

Hello,

sorry, the USI is a very poor UART and is not supported.

rolf

bgoolsby

Subject:

Re: UART support in ATTiny261/461/861

· Posted: 07.10.2014 - 18:22 · #3

So there's no way to get a hardware UART on the Tiny861?

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Re: UART support in ATTiny261/461/861

· Posted: 07.10.2014 - 20:15 · #4

Hello Bill,

some years ago a user send us two sample programs how to use the AVR-USI.
We never checked them nor used them. I attach these sources for your usage.
But no support, sorry.

btw.
Why don't you use another small AVR providing a real UART? Mega88 for example.
Or the XMega8-16-32E5. Very cheap, very fast. UARTs, SPI, TWI, ADC, DAC etc.
Same price as Tiny861 at Mouser.

rolf

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bgoolsby

Subject:

Re: UART support in ATTiny261/461/861

· Posted: 17.10.2014 - 19:26 · #5

I wanted a low-pin-count chip with UART. I see the Tiny841 has a UART and is only 14 pins - I'll go with this one. Thanks, Rolf.

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Re: UART support in ATTiny261/461/861

· Posted: 17.10.2014 - 23:03 · #6

ok, I understand.
But the TINY861 has 32 pins in SMD and the XMega32E5 has also 32 pins in SMD.

rolf

bgoolsby

Subject:

Re: UART support in ATTiny261/461/861

· Posted: 21.10.2014 - 22:06 · #7

I switched to talking about the Tiny841 - it is available in 14-SOIC.

UART support in ATTiny261/461/861

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