// ----- Local Includes -----
#include "mchck.h"
+#include "debug.h"
/* This will have to live in SRAM. */
__attribute__((section(".ramtext.ftfl_submit_cmd"), long_call))
-int ftfl_submit_cmd(void)
+int ftfl_submit_cmd()
{
FTFL.fstat.raw = ((struct FTFL_FSTAT_t){
.ccif = 1,
//return (!!stat.mgstat0);
}
-int flash_prepare_flashing(void)
+int flash_prepare_flashing()
{
/* switch to FlexRAM */
- if (!FTFL.fcnfg.ramrdy) {
+ if ( !FTFL.fcnfg.ramrdy )
+ {
FTFL.fccob.set_flexram.fcmd = FTFL_FCMD_SET_FLEXRAM;
FTFL.fccob.set_flexram.flexram_function = FTFL_FLEXRAM_RAM;
return (ftfl_submit_cmd());
return (0);
}
-int flash_erase_sector(uintptr_t addr)
+int flash_read_1s_sector( uintptr_t addr, size_t num )
{
- if (addr < (uintptr_t)&_app_rom &&
- flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420)
+ FTFL.fccob.read_1s_section.fcmd = FTFL_FCMD_READ_1s_SECTION;
+ FTFL.fccob.read_1s_section.addr = addr;
+ FTFL.fccob.read_1s_section.margin = FTFL_MARGIN_NORMAL;
+ FTFL.fccob.read_1s_section.num_words = num;
+
+ return ftfl_submit_cmd();
+}
+
+int flash_erase_sector( uintptr_t addr )
+{
+#ifdef FLASH_DEBUG
+ // Debug
+ print("Erasing Sector: address(");
+ printHex( addr );
+ printNL(")");
+#endif
+
+ if ( addr < (uintptr_t)&_app_rom && flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420 )
return (-1);
FTFL.fccob.erase.fcmd = FTFL_FCMD_ERASE_SECTOR;
FTFL.fccob.erase.addr = addr;
- return (ftfl_submit_cmd());
+
+ return ftfl_submit_cmd();
}
-int flash_program_section_longwords(uintptr_t addr, size_t num_words)
+int flash_program_section_longwords( uintptr_t addr, size_t num_words )
{
+#ifdef FLASH_DEBUG
+ // Debug
+ print("Programming Sector: address(");
+ printHex( addr );
+ print(") longwords(");
+ printHex( num_words );
+ printNL(")");
+#endif
+
FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
FTFL.fccob.program_section.addr = addr;
FTFL.fccob.program_section.num_words = num_words;
return ftfl_submit_cmd();
}
-int flash_program_section_phrases(uintptr_t addr, size_t num_phrases)
+int flash_program_section_phrases( uintptr_t addr, size_t num_phrases )
{
+#ifdef FLASH_DEBUG
+ // Debug
+ print("Programming Sector: address(");
+ printHex( addr );
+ print(") phrases(");
+ printHex( num_phrases );
+ printNL(")");
+#endif
+
FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
FTFL.fccob.program_section.addr = addr;
FTFL.fccob.program_section.num_words = num_phrases;
return ftfl_submit_cmd();
}
-int flash_program_longword(uintptr_t addr, uint8_t *data)
+int flash_program_sector( uintptr_t addr, size_t len )
{
- FTFL.fccob.program_longword.fcmd = FTFL_FCMD_PROGRAM_LONGWORD;
- FTFL.fccob.program_longword.addr = addr;
- FTFL.fccob.program_longword.data_be[0] = data[0];
- FTFL.fccob.program_longword.data_be[1] = data[1];
- FTFL.fccob.program_longword.data_be[2] = data[2];
- FTFL.fccob.program_longword.data_be[3] = data[3];
+ if ( len != USB_DFU_TRANSFER_SIZE )
+ return 1;
- return ftfl_submit_cmd();
-}
-
-int flash_program_sector(uintptr_t addr, size_t len)
-{
#if defined(_mk20dx128vlf5_)
- return (len != FLASH_SECTOR_SIZE ||
- (addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
- flash_erase_sector(addr) ||
- flash_program_section_longwords(addr, FLASH_SECTOR_SIZE / 4));
+ // Check if this is the beginning of a sector
+ // Only erase if necessary
+ if ( (addr & (FLASH_SECTOR_SIZE - 1)) == 0
+ && flash_read_1s_sector( addr, FLASH_SECTOR_SIZE / 4 )
+ && flash_erase_sector( addr ) )
+ return 1;
+
+ // Program sector
+ return flash_program_section_longwords( addr, FLASH_SECTOR_SIZE / 4 );
#elif defined(_mk20dx256vlh7_)
- /*
- return (len != FLASH_SECTOR_SIZE ||
- (addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
- flash_erase_sector(addr) ||
- flash_program_section_phrases(addr, FLASH_SECTOR_SIZE / 8));
- */
- return (len != FLASH_SECTOR_SIZE ||
- (addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
- flash_erase_sector(addr) ||
- flash_program_section_phrases(addr, FLASH_SECTOR_SIZE / 8));
+ // Check if beginning of sector and erase if not empty
+ // Each sector is 2 kB in length, but we can only write to half a sector at a time
+ // We can only erase an entire sector at a time
+ if ( (addr & (FLASH_SECTOR_SIZE - 1)) == 0
+ && flash_read_1s_sector( addr, FLASH_SECTOR_SIZE / 8 )
+ && flash_erase_sector( addr ) )
+ return 1;
+
+ // Program half-sector
+ return flash_program_section_phrases( addr, FLASH_SECTOR_SIZE / 16 );
#endif
}
-int flash_prepare_reading(void)
+int flash_prepare_reading()
{
return (0);
}
-int flash_read_sector(uintptr_t addr, size_t len)
+int flash_read_sector( uintptr_t addr, size_t len )
{
return (0);
}
-void *flash_get_staging_area(uintptr_t addr, size_t len)
+void *flash_get_staging_area( uintptr_t addr, size_t len )
{
- if ((addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
- len != FLASH_SECTOR_SIZE)
+ if ( (addr & (USB_DFU_TRANSFER_SIZE - 1)) != 0 || len != USB_DFU_TRANSFER_SIZE )
return (NULL);
return (FlexRAM);
}