ENC28J60 + MSP430 SPI communication issue

[prabakaran.s]

Hi I'm using ENC28j60 Chip. i communicate this chip Via MSP430F2272 controller ( SPI protocol).But i can't read the ENC28j60 Registers.

My write Code:

P3OUT &= ~ETH_CS; //Pull the STE low
while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission
UCB0TXBUF = u8ETHRegAddr; //Transmit address
while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission
UCB0TXBUF = pu8spiETHTxData; //Transmit data
while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission
P3OUT |= ETH_CS; //Pull the STE high

My Read Code:
P3OUT &= ~ETH_CS;


u8ETHRegAddr &= 0x3F; //Reset MSB for Read operation
while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission
UCB0TXBUF = u8ETHRegAddr; //Transmit data to configuratiuon register
while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission


for(u8delay = 0; u8delay < 15; u8delay++);

for(u8index = 0; u8index < u8ETHRxDataLen; u8index++)
{


// UCB0TXBUF = 0x00; //Transmit dummy data
// while(!(UCB0IFG & ETH_TXIFG)); //Wait to make a transmission
gau8ETHRxBuf = UCB0RXBUF; //copy data from SPI Rx buffer
while(!(UCB0IFG & ETH_RXIFG)); //Wait to receive a data
gau8ETHRxBuf = UCB0RXBUF; //copy data from SPI Rx buffer



I have problem in reading the register.
Thank

 

[karthikkrv85]

hai probakar...

have you done the clock phase and polarity configuration properly as per the slave? Please try to verify the bus using oscilloscope..

I have not used ENC28J60.. but i have worked on SPI. So if u confirm the clock, CS\ and data using scope, i think some of the possibilities we can isolate

 

[prabakaran.s]

Hi karthikkrv85


i check clock phase and polarity configuration as per the slave(Enc28j60) with oscilloscope..

The clock & CS pin porting configuration is normal. But still I can’t read r write in ENC28j60 Chip

 

[karthikkrv85]

Can u send the circuit diagram and if possible capture the SPI signal from scope...

---------- Post added at 14:15 ---------- Previous post was at 13:45 ----------

Please visit to this address too

MSP430F2272 - SPI: no reset of UCB0TXIFG after writing data to UCB0TXBUF - MSP430 Ultra-Low Power 16-bit Microcontroller Forum - MSP430

---------- Post added at 14:28 ---------- Previous post was at 14:15 ----------

looks like u have to define the proper vector address for the interrupt.

I have used silab controllers. In some of variants, u have to select the proper SFR page otherwise those interrupts never occur. I think the same situation may be in your case too. U have to define the vector address

I hope you will understand when you visit the below pages..

I2C between MSP430F2272 and the Melexis mlx90614 - MSP430 Ultra-Low Power 16-bit Microcontroller Forum - MSP430

 

[prabakaran.s]

ENC 28j60 problem in transmitting packet

hi friends

i'm working on Ethernet ( ENC28j60) My host controller in MSP430f5438, any one can help me out for forming the TCP/IP layer's ..
also when i transmitting packet. the order of layer's ( like source ip & destination IP & MAC Add & data ).\

And also the ENC chip itself having register for configuring source MAC Add then what about IP, how can i configure the source IP Add for enc chip.

 

[prabakaran.s]

Hi karthikkrv85


long back too meet u , I done the communication b/w the ENC chip & My host controller ( Msp chip )

i'm working on Ethernet ( ENC28j60) My host controller in MSP430f5438, can help me out for forming the TCP/IP layer's ..
also when i transmitting packet. the order of layer's ( like source ip & destination IP & MAC Add & data ).\

And also the ENC chip itself having register for configuring source MAC Add then what about IP, how can i configure the source IP Add for enc chip.

---------- Post added at 06:38 ---------- Previous post was at 06:37 ----------

Hi karthikkrv85


long back too meet u , I done the communication b/w the ENC chip & My host controller ( Msp chip )

i'm working on Ethernet ( ENC28j60) My host controller in MSP430f5438, can help me out for forming the TCP/IP layer's ..
also when i transmitting packet. the order of layer's ( like source ip & destination IP & MAC Add & data ).\

And also the ENC chip itself having register for configuring source MAC Add then what about IP, how can i configure the source IP Add for enc chip.