/********************************************************************
* モニタコマンド受信と実行.
********************************************************************
*/
void ProcessIO(void)
{
// 返答パケットが空であること、かつ、
// 処理対象の受信データがある.
if((ToPcRdy == 0) && (!mHIDRxIsBusy())) {
//受信データがあれば、受信データを受け取る.
HIDRxReport64((char *)&PacketFromPC);
PacketToPC.raw[0]=Cmd0; // CMD ECHOBACK
//コマンドに対応する処理を呼び出す.
if(Cmd0 >= HIDASP_PAGE_TX) {cmd_avrspx();} // AVRライターコマンド.
else if(Cmd0 >= PICSPX_SETADRS24){cmd_picspx();} // PICライターコマンド.
else if(Cmd0==HIDASP_PEEK) {cmd_peek();} // メモリー読み出し.
else if(Cmd0==HIDASP_POKE) {cmd_poke();} // メモリー書き込み.
else if(Cmd0==HIDASP_JMP) {cmd_exec();} // 実行.
else if(Cmd0==HIDASP_SET_MODE) {cmd_set_mode();}
else if(Cmd0==HIDASP_GET_STRING){cmd_get_string();}
else if(Cmd0==HIDASP_USER_CMD) {cmd_user_cmd();}
else if(Cmd0==HIDASP_TEST) {cmd_echo();} // 接続テスト.
}
// 必要なら、返答パケットをインタラプト転送(EP1)でホストPCに返却する.
if( ToPcRdy ) {
if(!mHIDTxIsBusy()) {
HIDTxReport64((char *)&PacketToPC);
ToPcRdy = 0;
if(poll_mode!=0) {
if(mHIDRxIsBusy()) { //コマンドが来ない限り送り続ける.
make_report();
}
}
}
}
}
/******************************************************************************
* Function: void ProcessIO
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user routines.
* It is a mixture of both USB and non-USB tasks.
*
* Note: None
*****************************************************************************/
void ProcessIO(void) {
unsigned char n, b, c, y;
int a;
// User Application USB tasks
if (!(isUsbPowered)) //Only generate traffic if NOT connected to USB
{
CheckLoadButton();
CANLoadTX();
return;
}
if ((usb_device_state < CONFIGURED_STATE) || (UCONbits.SUSPND == 1)) return;
//----- Read USB buffer if it has data from the host -----
if (HIDRxReport(inbuffer, 64)) // USB receive buffer has data
{
LED_RX_ON(); //Turn LED on
T0CONbits.TMR0ON = 1; //Start timer for TX LED on time
gTimeout = 0; //Reset timout
//---- CANmsgs: Check if host has requested CAN messages to be transmited
switch (inbuffer[u_CANmsgs]) // interpret command
{
case 0x00: // No messages are available
break;
case 0x01: // Message 1 is available
GetUSBData(m1_SIDH, 13, DataArray);
n = SPILoadTX(CAN_LOAD_TX, 13, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
break;
case 0x02: // Message 1 and 2 are available
//Message 1
GetUSBData(m1_SIDH, m1_DLC + 5, DataArray);
n = SPILoadTX(CAN_LOAD_TX, m1_DLC + 5, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
//Message 2
GetUSBData(m2_SIDH, m2_DLC + 5, DataArray);
n = SPILoadTX(CAN_LOAD_TX, m2_DLC + 5, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
break;
case 0x03: // Message 1, 2, and 3 are available
//Message 1
GetUSBData(m1_SIDH, m1_DLC + 5, DataArray);
n = SPILoadTX(CAN_LOAD_TX, m1_DLC + 5, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
//Message 2
GetUSBData(m2_SIDH, m2_DLC + 5, DataArray);
n = SPILoadTX(CAN_LOAD_TX, m2_DLC + 5, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
//Message 3
GetUSBData(m3_SIDH, m3_DLC + 5, DataArray);
n = SPILoadTX(CAN_LOAD_TX, m3_DLC + 5, DataArray);
if (n == CAN_LD_TXB0_ID) //if TX0 is loaded
{
RTS0_2515_LOW();
RTS0_2515_HIGH();
} else if (n == CAN_LD_TXB1_ID) //if TX1 is loaded
{
RTS1_2515_LOW();
RTS1_2515_HIGH();
} else if (n == CAN_LD_TXB2_ID) //if TX2 is loaded
{
RTS2_2515_LOW();
RTS2_2515_HIGH();
}
break;
case 0x04: //--FUTURE-- Message 1, 2, 3, and 4 are available
break;
default: // unrecognized or null command
;
}// END switch: inbuffer[u_CANmsgs]
//---- CANCTRL: Write to the CANCTRL register if changed
if (inbuffer[u_CANCTRL] != old_CANCTRL) //If host sent new CANCTRL value
{
SPIByteWrite(CANCTRL, inbuffer[u_CANCTRL]); //Write to CANCTRL
EEPROMBYTEWrite(CANCTRL, inbuffer[u_CANCTRL]);
EEPROMCRCWrite(0, 128);
old_CANCTRL = inbuffer[u_CANCTRL]; //
outbuffer[u_CANSTAT] = SPIByteRead(CANSTAT);
while ((outbuffer[u_CANSTAT] & 0xE0) != (inbuffer[u_CANCTRL] & 0xE0))//if didn't change modes yet
{
outbuffer[u_CANSTAT] = SPIByteRead(CANSTAT);
}
UserFlag.USBsend = 1; //Set flag so will send USB message
}
//---- SPI: SPI command from host
if (inbuffer[u_SPI]) //If host sent SPI command (non-zero)
{
switch (inbuffer[u_SPI]) {
case CAN_RESET: //
SPIReset();
CANInit();
break;
case CAN_READ: //
if (!UserFlag.USBQueue) // If previous message is queued
{
outbuffer[u_SPI] = CAN_READ; //Send back to host
outbuffer[u_REG] = inbuffer[u_REG]; //Send back to host
outbuffer[u_DATA] = SPIByteRead(inbuffer[u_REG]); //Send back to host
}
UserFlag.USBsend = 1; //Set flag so will send USB message
UserFlag.USBQueue = 1; //Indicates msg is queued, but not sent
break;
case CAN_WRITE: //
//outbuffer[u_SPI] = 0; //Send back to host //JM
SPIByteWrite(inbuffer[u_REG], inbuffer[u_DATA]);
EEPROMBYTEWrite(inbuffer[u_REG], inbuffer[u_DATA]);
EEPROMCRCWrite(0, 128);
break;
case CAN_RTS: //
SPI_RTS(inbuffer[u_DATA]);
break;
case CAN_RD_STATUS: //
outbuffer[u_DATA] = SPIReadStatus();
UserFlag.USBsend = 1; //Set flag so will send USB message
break;
case FIRMWARE_VER_RD:
memmove(&outbuffer[u_STATUS], firmware_version, sizeof (firmware_version));
outbuffer[u_STATUS + sizeof (firmware_version)] = 0;
UserFlag.USBsend = 1; //Set flag so will send USB message
break;
default: // unrecognized or null command
;
}// END switch: inbuffer[u_SPI]
}
}//END if (HIDRxReport(inbuffer, 1)
//---- Check RXnBF pins and service messages as needed ---
switch (CheckCANRX()) // Check if CAN message received
{
case 0x01: // Message in RXB0 (Msgs in this buffer are Standard)
SPIReadRX(CAN_RD_START_RXB0SIDH, 13, ReadArray);
LoadUSBString(ReadArray);
break;
case 0x02: // Message in RXB1 (Msgs in this buffer are Extended)
SPIReadRX(CAN_RD_START_RXB1SIDH, 13, ReadArray);
LoadUSBString(ReadArray);
break;
case 0x03: // Message in RXB0 and RXB1
SPIReadRX(CAN_RD_START_RXB0SIDH, 13, ReadArray);
LoadUSBString(ReadArray);
SPIReadRX(CAN_RD_START_RXB1SIDH, 13, ReadArray);
LoadUSBString(ReadArray);
break;
default: // unrecognized or null command
;
}// END switch: CheckCANRX()
//---- The following turns off the TX and RX USB indicator LEDs after some time
//Inst. cycle = 200 ns; TMR0IF sets every 51 us
if (INTCONbits.TMR0IF) {
TimerCounter++;
if (!TimerCounter) //if rolled over, set flag. User code will handle the rest.
{
LED_TX_OFF(); //Turn LED off
LED_RX_OFF(); //Turn LED off
T0CONbits.TMR0ON = 0; //Start timer for TX LED on time
TimerCounter = 0xFE;
gTimeout = 1; //Reset timout
}
INTCONbits.TMR0IF = 0;
}
//------ Load USB Data to be transmitted to the host --------
if (UserFlag.MCP_RXBn | UserFlag.USBsend) {
if (!mHIDTxIsBusy()) {
HIDTxReport(outbuffer, 64);
outbuffer[0] = 0x00; //PKR$$$ Need this??
UserFlag.MCP_RXBn = 0; //clear flag
UserFlag.USBsend = 0; //clear flag
UserFlag.USBQueue = 0; //Clear message queue
LED_TX_ON(); //Turn LED on
T0CONbits.TMR0ON = 1; //Start timer for TX LED on time
gTimeout = 0; //Reset timout
outbuffer[u_SPI] = 0x00; //clear back to 00h so host doesn't detect "SPI response"
USB_ptr = 0xFF; //Point to location 0xFF
outbuffer[u_CANmsgs] = 0x00; //Clear message status
}
}
}//end ProcessIO