/*\r
LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
+ Copyright (C) Dean Camera, 2010.\r
\r
dean [at] fourwalledcubicle [dot] com\r
www.fourwalledcubicle.com\r
*/\r
\r
/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting\r
- documentation, and that the name of the author not be used in\r
- advertising or publicity pertaining to distribution of the\r
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+ Permission to use, copy, modify, distribute, and sell this \r
+ software and its documentation for any purpose is hereby granted\r
+ without fee, provided that the above copyright notice appear in \r
+ all copies and that both that the copyright notice and this\r
+ permission notice and warranty disclaimer appear in supporting \r
+ documentation, and that the name of the author not be used in \r
+ advertising or publicity pertaining to distribution of the \r
software without specific, written prior permission.\r
\r
The author disclaim all warranties with regard to this\r
*/\r
bool RunBootloader = true;\r
\r
-\r
/** Main program entry point. This routine configures the hardware required by the bootloader, then continuously \r
* runs the bootloader processing routine until instructed to soft-exit.\r
*/\r
\r
while (RunBootloader)\r
USB_USBTask();\r
-\r
- /* Wait 100ms to give the host time to register the disconnection */\r
- _delay_ms(100);\r
+ \r
+ /* Disconnect from the host - USB interface will be reset later along with the AVR */\r
+ USB_Detach();\r
\r
/* Enable the watchdog and force a timeout to reset the AVR */\r
wdt_enable(WDTO_250MS);\r
- \r
+\r
for (;;);\r
}\r
\r
switch (USB_ControlRequest.bRequest)\r
{\r
case REQ_SetReport:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- Endpoint_ClearSETUP();\r
- \r
- /* Wait until the command (report) has been sent by the host */\r
- while (!(Endpoint_IsOUTReceived()));\r
+ Endpoint_ClearSETUP();\r
\r
- /* Read in the write destination address */\r
- uint16_t PageAddress = Endpoint_Read_Word_LE();\r
+ /* Wait until the command has been sent by the host */\r
+ while (!(Endpoint_IsOUTReceived()));\r
+ \r
+ /* Read in the write destination address */\r
+ uint16_t PageAddress = Endpoint_Read_Word_LE();\r
+ \r
+ /* Check if the command is a program page command, or a start application command */\r
+ if (PageAddress == TEENSY_STARTAPPLICATION)\r
+ {\r
+ RunBootloader = false;\r
+ }\r
+ else\r
+ {\r
+ /* Erase the given FLASH page, ready to be programmed */\r
+ boot_page_erase(PageAddress);\r
+ boot_spm_busy_wait();\r
\r
- /* Check if the command is a program page command, or a start application command */\r
- if (PageAddress == TEENSY_STARTAPPLICATION)\r
- {\r
- RunBootloader = false;\r
- }\r
- else\r
+ /* Write each of the FLASH page's bytes in sequence */\r
+ for (uint8_t PageByte = 0; PageByte < SPM_PAGESIZE; PageByte += 2)\r
{\r
- /* Erase the given FLASH page, ready to be programmed */\r
- boot_page_erase(PageAddress);\r
- boot_spm_busy_wait();\r
- \r
- /* Write each of the FLASH page's bytes in sequence */\r
- for (uint8_t PageByte = 0; PageByte < 128; PageByte += 2)\r
+ /* Check if endpoint is empty - if so clear it and wait until ready for next packet */\r
+ if (!(Endpoint_BytesInEndpoint()))\r
{\r
- /* Check if endpoint is empty - if so clear it and wait until ready for next packet */\r
- if (!(Endpoint_BytesInEndpoint()))\r
- {\r
- Endpoint_ClearOUT();\r
- while (!(Endpoint_IsOUTReceived()));\r
- }\r
-\r
- /* Write the next data word to the FLASH page */\r
- boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());\r
+ Endpoint_ClearOUT();\r
+ while (!(Endpoint_IsOUTReceived()));\r
}\r
\r
- /* Write the filled FLASH page to memory */\r
- boot_page_write(PageAddress);\r
- boot_spm_busy_wait();\r
-\r
- /* Re-enable RWW section */\r
- boot_rww_enable();\r
+ /* Write the next data word to the FLASH page */\r
+ boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());\r
}\r
\r
- Endpoint_ClearOUT();\r
+ /* Write the filled FLASH page to memory */\r
+ boot_page_write(PageAddress);\r
+ boot_spm_busy_wait();\r
\r
- Endpoint_ClearStatusStage();\r
+ /* Re-enable RWW section */\r
+ boot_rww_enable();\r
}\r
+\r
+ Endpoint_ClearOUT();\r
+\r
+ Endpoint_ClearStatusStage();\r
\r
break;\r
}\r
projects / pub / USBasp.git / blobdiff