Documentation improvements - put driver example code into its own section, fix incorr...
[pub/USBasp.git] / Projects / AVRISP-MKII / Lib / XPROG / XPROGProtocol.c
index edd362b..223a735 100644 (file)
@@ -3,7 +3,7 @@
      Copyright (C) Dean Camera, 2010.
 
   dean [at] fourwalledcubicle [dot] com
      Copyright (C) Dean Camera, 2010.
 
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
 */
 
 /*
@@ -118,43 +118,9 @@ static void XPROGProtocol_EnterXPROGMode(void)
        bool NVMBusEnabled = false;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        bool NVMBusEnabled = false;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
-       {
-               /* Enable PDI programming mode with the attached target */
-               XPROGTarget_EnableTargetPDI();
-
-               /* Store the RESET key into the RESET PDI register to keep the XMEGA in reset */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
-               XPROGTarget_SendByte(PDI_RESET_KEY);
-
-               /* Lower direction change guard time to 0 USART bits */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);
-               XPROGTarget_SendByte(0x07);
-
-               /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
-               XPROGTarget_SendByte(PDI_CMD_KEY);
-               for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)
-                 XPROGTarget_SendByte(PDI_NVMENABLE_KEY[i - 1]);
-
-               /* Wait until the NVM bus becomes active */
-               NVMBusEnabled = XMEGANVM_WaitWhileNVMBusBusy();
-       }
+         NVMBusEnabled = XMEGANVM_EnablePDI();
        else if (XPROG_SelectedProtocol == XPRG_PROTOCOL_TPI)
        else if (XPROG_SelectedProtocol == XPRG_PROTOCOL_TPI)
-       {
-               /* Enable TPI programming mode with the attached target */
-               XPROGTarget_EnableTargetTPI();
-
-               /* Lower direction change guard time to 0 USART bits */
-               XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
-               XPROGTarget_SendByte(0x07);
-
-               /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
-               XPROGTarget_SendByte(TPI_CMD_SKEY);
-               for (uint8_t i = sizeof(TPI_NVMENABLE_KEY); i > 0; i--)
-                 XPROGTarget_SendByte(TPI_NVMENABLE_KEY[i - 1]);
-
-               /* Wait until the NVM bus becomes active */
-               NVMBusEnabled = TINYNVM_WaitWhileNVMBusBusy();
-       }
+         NVMBusEnabled = TINYNVM_EnableTPI();
 
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);
 
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);
@@ -172,29 +138,13 @@ static void XPROGProtocol_LeaveXPROGMode(void)
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
-       {
-               XMEGANVM_WaitWhileNVMBusBusy();
-
-               /* Clear the RESET key in the RESET PDI register to allow the XMEGA to run */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
-               XPROGTarget_SendByte(0x00);
-
-               /* Do it twice to make sure it takes affect (silicon bug?) */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
-               XPROGTarget_SendByte(0x00);
-
-               XPROGTarget_DisableTargetPDI();
-       }
+         XMEGANVM_DisablePDI();
        else
        else
-       {
-               TINYNVM_WaitWhileNVMBusBusy();
+         TINYNVM_DisableTPI();
 
 
-               /* Clear the NVMEN bit in the TPI CONTROL register to disable TPI mode */
-               XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
-               XPROGTarget_SendByte(0x00);
-
-               XPROGTarget_DisableTargetTPI();
-       }
+       #if defined(XCK_RESCUE_CLOCK_ENABLE) && defined(ENABLE_ISP_PROTOCOL)
+       ISPTarget_ConfigureRescueClock();
+       #endif
 
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);
 
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);