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Thanks for you reply Klaus,
i want protect a sensor input, so it is a high ohmic source, and i want to protect against any wrong connection.
like you say, i put the zener on the input, and work fine with a limited current, and with a low resistence source, the zener burn.
do you know any...
I'm creating a circuit to protect an analog input, which can vary from 0 to 2.5V.
However I need divide this voltage to 2V.
And I need to protect for not exceeding 3.3 V.
I created this circuit in Multisim, simulation worked perfectly, but in practice No.
in practice, with 2V the result is...
Hey guys, I'm getting a little crazy about this problem.
Im using PIC24FJ128GB204 and four CAT24M01
In general i can read the original value (0xFF)
But i cant write the any value
And every time should receive a ACK ( Low ) i receive a NACK ( High ) (i see on the scope)
the WP in CAT24M01 is...
But in the end is set to
I2C1CONLbits.I2CEN = 0;
I2C1CONLbits.A10M = 0;
I2C1CONLbits.SCLREL = 1;
I2C1CONLbits.I2CSIDL = 1;
I2C1CONLbits.DISSLW = 1;
I2C1CONLbits.SMEN = 0;
I2C1CONHbits.SDAHT = 0;
I2C1CONLbits.I2CEN = 1;
I am using SDA1 and SCL1,
Pin 18 - TDO/C1INC/C2INC/C3INC/RP9/SDA1/T1CK/CTED4/CN21/RB9
Pin 17 - TCK/RP8/SCL1/USBOEN/CTED10/CN22/RB8
to set the I2CSEL, I followed the panel on MPLAB
I've programmed this eeprom with a PIC18F, and works fine. But for this pic i just dont know what is this "writable from SW only".
- - - Updated - - -
I am using XC16 compiler.
I2C1SEL: Alternate I2C1 Location Select bit
following the full code
#define envia_restart_i2c1()...
Hi guys,
I am using Pic24fj128gb202 on i2c aplication, but I can not make it work!
Nothing happens in the SDA/SCL pins.
I am using the following code for init
void initI2C()
{
long Fscl = 100000;
I2C1BRG = (FCY/(2*Fscl))-1; // baud rate 100 KHz
I2C1CONLbits.I2CEN = 0...
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