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autotest: fill flash with 0xff on erase

This commit is contained in:
Andrew Tridgell 2011-11-07 23:35:57 +11:00
parent 8c5873564b
commit c1dad23679
1 changed files with 10 additions and 4 deletions
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14
libraries/Desktop/support/DataFlash.cpp
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@ -27,8 +27,13 @@ DataFlash_Class::DataFlash_Class()
void DataFlash_Class::Init(void) void DataFlash_Class::Init(void)
{ {
if (flash_fd == 0) { if (flash_fd == 0) {
flash_fd = open("dataflash.bin", O_RDWR|O_CREAT, 0777); flash_fd = open("dataflash.bin", O_RDWR, 0777);
ftruncate(flash_fd, DF_NUM_PAGES*DF_PAGE_SIZE); if (flash_fd == -1) {
uint8_t fill[DF_PAGE_SIZE*DF_NUM_PAGES];
flash_fd = open("dataflash.bin", O_RDWR | O_CREAT, 0777);
memset(fill, 0xFF, sizeof(fill));
write(flash_fd, fill, sizeof(fill));
}
} }
df_PageSize = DF_PAGE_SIZE; df_PageSize = DF_PAGE_SIZE;
df_BufferNum = 1; df_BufferNum = 1;
@ -96,8 +101,9 @@ unsigned char DataFlash_Class::BufferRead (unsigned char BufferNum, uint16_t Int
void DataFlash_Class::PageErase (uint16_t PageAdr) void DataFlash_Class::PageErase (uint16_t PageAdr)
{ {
uint8_t zero[DF_PAGE_SIZE] = {0,}; uint8_t fill[DF_PAGE_SIZE];
pwrite(flash_fd, zero, DF_PAGE_SIZE, PageAdr*DF_PAGE_SIZE); memset(fill, 0xFF, sizeof(fill));
pwrite(flash_fd, fill, DF_PAGE_SIZE, PageAdr*DF_PAGE_SIZE);
} }