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Add reading of security bit to D5xNvmFlash #127

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Add reading of security bit to D5xNvmFlash #127

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9 changes: 7 additions & 2 deletions src/D5xNvmFlash.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,10 @@
#define NVM_CMD_SSB 0x16
#define NVM_CMD_PBC 0x15

#define DSU_ADDR 0x41002000
#define DSU_STATUSB_OFFSET 0x2
#define DSU_STATUSB_PROT_MASK 0x1

#define ERASE_BLOCK_PAGES 16 // pages

// NVM User Page
Expand Down Expand Up @@ -137,8 +141,9 @@ D5xNvmFlash::getLockRegions()
bool
D5xNvmFlash::getSecurity()
{
// There doesn't seem to be a way to read this
return false;
uint8_t byte = _samba.readByte(DSU_ADDR + DSU_STATUSB_OFFSET);

return byte & DSU_STATUSB_PROT_MASK;
}

bool
Expand Down