programmer avr

[Dixix]

Hi g.s.
So I have understood you correctly. (Your English is to o.k.)
The rectangular curve is not under 0V. (With only microcontroller) See picture:



To generate +5 V/-5V rectangular curve you need any other additional components.
The question is: What do you want to build a circuit?

[g.s]

Hello! Dixix YOUR I show splurge ..
this is what I want to build..

eee FORGOT is in 100 Ηz

[g.s]

I also have a queries ..
how Can You Grow TIME on (HIGH) without moving the price off (low) , namely riding to the price of (low)..
................

[g.s]

Good evening dixix ..
I created this program ..

$regfile = "attiny45.dat"
$crystal = 10000
Config Portb = Output
Const Ondelay = 8
Const Offdelay = 919.2
Do
Portb.4 = 1


Waitms Ondelay
Portb.4 = 0
Waitms Offdelay








Loop
End
corresponds to the figure shows.. is correct year that I made ??
the dot at what thy They show ( Const Offdelay = 919.2 ) ??



Thanks in advance

[Dixix]

I do not think this will work that way.
You have only times you acquire a basic knowledge of AVRs. The best thing you build an experimental platform. And then little by little work ahead. Basic literacy skills. (ATTINY has only one port B)

Please do not be mad at me, but I think you have too much you made for the beginning.

In your case you want to create two different pulses. Output on two different I/Os.
The commanding DELAY is not the right way. with every DELAY you put the processor lame .
I think its better to work with TIMER / ISR
Timer runs independently from the actual program in the MC in the background.
There are 8bit timer and 16bit timer.
If a timer with a frequency of 1 MHz processor controlled.(8bit timer) Then the timer counts per second 1 million times more. A "tick" then takes 0.001 ms. Per timer overflow can then be trigger an interrupt which performs certain actions in a subroutine. and so on ....
I do not know if ATTINY45 the 16bit timer has.
First, you must the Data Sheet of the ATTINY45 read.

Please search in the WEB for AVR programming tutorials. So you can lerning the basics.

I am also just beginning to programming of AVRs.
I can tell you in those specific questions not help ...
regards
Dirk

[Dixix]

Specifically meant, you need a signal in which the frequency remains constant. But the ratio of "ON" time to "off time" should be changed. To eimen certain percentage of the time is at a 5V level and in the remaining time 0V.
Generated with PWM.
So: If the frequency of the PWM signal is constant. BUT: The pulse-pause ratio is determined by compare-value.
IMPORTANT: The signal is output to precisely defined pins of the microcontroller. (ATTINY45: PB1 and PB0)
The pin is defined in the program as output. (CONFIG PINB.1=OUTPUT)
regards
Dirk

[Dixix]

Sorry my mistake. By hardware PWM you can use only one pin of ATTINY45 - PB1.

[g.s]

ja , to construct a breadboard is a great idea , I'm totally with you here will be wonderful to happen..
my is easy to create a pcb for bascom and ponyprog and post it here..
Yeah, but What do the microcontrollers whom Should Use. to attiny45 has two clocks looked at the pro..

Features
• High performance, low power Atmel® AVR® 8-bit microcontroller
• Advanced RISC architecture
– 131 powerful instructions – most single clock cycle execution
– 32 × 8 general purpose working registers
– Fully static operation
– Up to 20 MIPS throughput at 20MHz
– On-chip 2-cycle multiplier
• High endurance non-volatile memory segments
– 4/8/16 Kbytes of in-system self-programmable flash program memory
– 256/512/512 bytes EEPROM
– 512/1K/1Kbytes internal SRAM
– Write/erase cyles: 10,000 flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C()
– Optional boot code section with independent lock bits
In-system programming by on-chip boot program
True read-while-write operation
– Programming lock for software security
• QTouch® library support
– Capacitive touch buttons, sliders and wheels
– QTouch and QMatrix acquisition
– Up to 64 sense channels
• Peripheral features
– Two 8-bit timer/counters with separate prescaler and compare mode
– One 16-bit timer/counter with separate prescaler, compare mode, and capture mode
– Real time counter with separate oscillator
– Six PWM channels
– 8-channel 10-bit ADC in TQFP and QFN/MLF package
– 6-channel 10-bit ADC in PDIP Package
– Programmable serial USART
– Master/slave SPI serial interface
– Byte-oriented 2-wire serial interface (Philips I2
C compatible)
– Programmable watchdog timer with separate on-chip oscillator
– On-chip analog comparator
– Interrupt and wake-up on pin change
• Special microcontroller features
– DebugWIRE on-chip debug system
– Power-on reset and programmable brown-out detection
– Internal calibrated oscillator
– External and internal interrupt sources
– Five sleep modes: Idle, ADC noise reduction, power-save, power-down, and standby
• I/O and packages
– 23 programmable I/O lines
– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
• Operating voltage:
– 1.8V - 5.5V for Atmel ATmega48V/88V/168V
– 2.7V - 5.5V for Atmel ATmega48/88/168
• Temperature range:
– -40°C to 85°C
• Speed grade:
– ATmega48V/88V/168V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V
– ATmega48/88/168: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V
• Low power consumption
– Active mode:
250µA at 1MHz, 1.8V
15µA at 32kHz, 1.8V (including oscillator)
– Power-down mode:
0.1µA at 1.8V
Note: 1. See “Data retention” on page 8 for details. $regfile = "attiny45.dat"
$crystal = 1000
Pbin Var In2 `hjhkh

WAITING g.s

[Dixix]

The MC has one clock. Default clock is 8MHz internal oscillator.
That's eight millionth
This divider is activated by 8 by default. (Page 33 Data Sheet)
So the result is 1 MHz 1,000,000. This is the speed at which the timers to work.

ATTINY has 2x timer with a 8bit resolution. (I do not know if the 8 bit resolution is sufficient for your purposes. 8bit timers count from 0 to 255 in the bakround. Here you have to calculate ....)
ATTINY also has two PWM channels. You can work with the two timers and with the two PWM channels.

Try it.