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avr ade7754
unsigned char spi_read()
{
#asm("nop");
SPDR=0x00; // data register
while(SPSR.7==0); // wait up to read cycle to complete
return SPDR;
}
use this if u had inbuilt SPI lines
ade7758 crystal
sir i am using ATmega16L micro and i had purchased the ADE7758 and connected the hardware.
i had made hard ware for ADE7758
AVDD & VDD ---- 5volts. and requried ressistors and capacitors
and connected
DOUT(ade7758) ---- MISO(mega16) configured as input
DIN (ade7758) ----...
yes, they are giving voltage through a resistor but when i measured with an multimeter on the adc pin it is showning about 220v ac..
my manager is not allowing me to convert AC in to DC for sensing..
hello , we can give ac 230v directly to an adc pin in microcontroller. i had that program in assembly lang for mega8 but iam not able to analyse it. in this code they are measuring only voltage with respective neutral, if u want that code i will farward.... plz help me to write the code in c...
mesuring of current
thank,s to every one for the reply
can i give ac voltage (430v) directly to an internal adc of microcontroller(mega8)
and how to give current wave to measure current and powerfactor
plz kindly help me to develop the software
mcu used in ups application
hi iam also implementing ups using AVR controller. but the problem is to controll the
PWM with feedback. do you have any idea about PID to implement in this control
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