Delta Tau GEO BRICK LV User Manual

 

 

EthCmd.wIndex      = 0; 

EthCmd.wLength     = htons( (WORD)strlen(outstr)); 

strncpy((char *)&EthCmd.bData[0],outstr,(WORD)strlen(outstr)); 

send(sock,(char*)&EthCmd,ETHERNETCMDSIZE + strlen(outstr),0); 

recv(sock, szPmacData,1400,0); 

VR_PMAC_GETMEM 

This packet causes the Ethernet connection to read data from the DPRAM shared between the Turbo 
PMAC CPU and the Ethernet microcontroller.  Up to 1400 bytes may be received in a single packet.  The 
wValue field contains the byte offset to retrieve the data from, while the wLength parameter indicates how 
many bytes to receive. 

EthCmd.RequestType = VR_UPLOAD; 

EthCmd.Request     = VR_PMAC_GETMEM; 

EthCmd.wValue      = htons(offset);  //  

EthCmd.wIndex      = 0; 

EthCmd.wLength     = htons(length); 

send(sock,(char *)&EthCmd,ETHERNETCMDSIZE ,0); 

recv(sock,(char *)data,1400,0); 

VR_PMAC_SETMEM 

This packet causes the Ethernet connection to write data to the DPRAM shared between the Turbo PMAC 
CPU and the Ethernet microcontroller.  Up to 1400 bytes may be written in a single packet.  The wValue 
field contains the byte offset to write the data to while the wLength parameter indicates how many bytes 
to write. After sending the packet the programmer must wait to receive 1 byte via the recv function before 
continuing. The data received is irrelevant; its purpose is to insure the sender’s command was received. 

EthCmd.RequestType = VR_UPLOAD; 

EthCmd.Request     = VR_PMAC_SETMEM; 

EthCmd.wValue      = htons(offset); 

EthCmd.wIndex      = 0; 

EthCmd.wLength     = htons(length); 

VR_PMAC_SETBIT 

This packet causes the Ethernet connection to perform a write to DPRAM shared between the Turbo 
PMAC CPU and the Ethernet microcontroller that either sets bits in a 32-bit word or clears bits in a 32-bit 
word.  If the wIndex parameter is supplied with a 1, a logical OR is performed that sets bits.  If it is 0, a 
logical AND is performed, which clears bits.  It is the programmer’s responsibility to use the appropriate 
mask for setting or clearing bits. The wValue field contains the byte offset to retrieve the data from.  After 
sending the packet the programmer must wait to receive 1 byte via the recv function before continuing. 
The data received is irrelevant; its purpose is to insure the sender’s command was received. 

DWORD       mask = 0x00000001; 

EthCmd.RequestType = VR_UPLOAD; 

EthCmd.Request     = VR_PMAC_SETBIT; 

EthCmd.wValue      = htons((WORD)offset); 

EthCmd.wIndex      = htons((WORD)on); 

EthCmd.wLength     = htons(len); 

// generate the mask 

mask <<= bitno; // zero based 

// If clearing a bit complement mask to prepare firmware for AND 

if(!on)