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ATtiny202 - TCA Count on Event doesn't fire OVF interrupt
  I am trying to measure the external crystal frequency with ATtiny202 by TCA in a time period 1 second generated by RTC but the TCA don't fire the OVF IRQ while counting...
Sunday, 30 May 2021 - 22:52
ATtiny202 - External Oscillator Circuit
I am having troubles with low outside temperatures which influence the stability of the internal 20 MHz oscillator (/24) for synchronous USART timing (1024 BAUD). I can't find any...
Tuesday, 4 May 2021 - 08:56
ATtiny202 - How to start TCB in Single-Shot Mode repeatedly ?
I don't fully understand how to repatedly start TCB in Single-Shot Mode to generate exact pause each 500 ms.   The test program generate 29 us pulses instead of 78.64 ms (1/...
Sunday, 28 March 2021 - 18:50
ATtiny202 - ASM code
I don't fully understand the addressig mode od AVR ATtinyxxx 0-Series. The following dissasembled code shows: r = ~(r ^ 0b10101010); 0x78: LDS R25, 0x00 0x79: CPI R24, 0xF1 0x7A...
Wednesday, 10 March 2021 - 09:24
ATtiny202 - bits doubling
Is there any way how to double bits in the 4 bits nibble in XC8 compiler or AVR ASM ? E.g. from 0b00001110 I need to get 0b11111100. It will help me to encode data (~(x^0b10101010...
Monday, 8 March 2021 - 22:01
ATtiny202 - Oregon Scientific temperature sensor replacement
My THN132N wireless temperature sensor is dead so I have decided to replace it by ATtiny202 with built in temperature measurement and send data to the Oregon Scientific base...
Monday, 15 February 2021 - 08:53
ATtiny202 temperature measurement settings ?
In the ATtiny202-402-DataSheet-DS40001969B is mentioned on the pdf page 416:   29.3.2.6 Temperature Measurement The temperature measurement is based on an on-chip temperature...
Friday, 12 February 2021 - 01:32
ATtiny202 How to create program more readable?
I am stuck on how to make program more readable by separating functional blocks (e.g. USART, RTC, TCB ...) into separate program files (*.c/*.h) and link them to the main program...
Friday, 29 January 2021 - 19:50
ATtiny202 how to use variables properly ?
I am having problems with simple programm which should approximate reflow profile by 7th order polynomial approximation.   main.c   #define F_CPU 3333333 #include <...
Tuesday, 26 January 2021 - 00:02
ATtiny202 read I2C 16 bits from MAX6675
I ordered MAX6675 Module + K Type Thermocouple Temperature Sensor and I am waiting for its delivery. In the meantime I am working on the I2C ATtiny202 program to read the...
Thursday, 21 January 2021 - 20:32
ATSAMR34-XPRO SERCOM5 I2C DMA compilation error
I am trying to test SERCOM5 I2C DMA write command but I am getting compilation error:   expected expression before ';' token   on the line 91, config.peripheral_trigger...
Saturday, 30 May 2020 - 21:10
ATSAMR34-XPRO - Delay function freezes
I added to my project by ASF Wizard: . Delay routines (service) systick SERCOM I2C - Master Mode I2C (driver) callback . When I set the break point on "nop" and run the debug, the...
Wednesday, 13 May 2020 - 20:12

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