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Recent content by Raguvaran

  1. R

    [SOLVED] Make a bit to zero without using "~" and affecting other bits in a register - ARM Compiler 6 (ARMClang compiler)

    Thank you Klaus This code shoes no error { GPIOA->ODR |= (1<<5); // PA5 = 1 delayMs(500); GPIOA->ODR &=~ (unsigned int)(1<<5); // PA5 = 0 delayMs(500); } and also tried SET_BIT and CLEAR_BIT functions as you mentioned. { SET_BIT(GPIOA->ODR...
  2. R

    [SOLVED] Make a bit to zero without using "~" and affecting other bits in a register - ARM Compiler 6 (ARMClang compiler)

    Hi, I am in basic level of embedded C. Using Keil for STM32 programming. For bit set and reset i use "|=" and "&=~". Below is a code GPIOA->ODR |= (1<<5); // PA5 = 1 GPIOA->ODR &=~ (1<<5); // PA5 = 0 While using ARM Compiler Version 5 there is no...
  3. R

    [SOLVED] ON/OFF controller IC with retaining its state after power resume

    Thank you for your valuable information. i found the following links about capacitive touch in ATTINY. https://playground.arduino.cc/Main/CapacitiveSensor https://www.instructables.com/id/How-To-Use-Touch-Sensors-With-Arduino/...
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    [SOLVED] ON/OFF controller IC with retaining its state after power resume

    Sorry for my explanation before. I am using a capacitive touch sense (TTP223) for switch. I not use any mechanical switch. currently i am using ATTINY13A to capture the touch through TTP223 and store the state in EEPROM. In back end esp8266 manage the network. ESP8266 control the switch through...
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    [SOLVED] ON/OFF controller IC with retaining its state after power resume

    Thank you for reply. I think Latching relay is suitable. I will check about it.
  6. R

    [SOLVED] ON/OFF controller IC with retaining its state after power resume

    I am using esp8266 in backend. Now I am using attiny13a for each switch. Every switch is connected to esp8266. If esp8266 fails, atmega13a act independently as manual on/off control switch. I thought to use a on/off controller ic, so that even esp8266 fails, on/off controller IC act independently.
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    [SOLVED] ON/OFF controller IC with retaining its state after power resume

    I am designing a smart switch. i need a on/off controller IC which should retains its present state. If power fail while switch is ON or OFF, after power resumes, the ON or OFF state should be retained. I found many on/off controller IC in internet. But i can't ensure that it retain its state...
  8. R

    FRAM with DDR interface

    Hi all, I am new to forum. Sorry If my question is repeated. Is any FRAM is available with DDR interface? As far as my search, i found paraller interface and serial interface (I2C and SPI). Is it possible to design a DDR FRAM by using parallel interface FRAM? Please help me ....
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