Hello, TI guys:
What does "pmbus_read_status_bit_mask" use for? This command is a pmbus MFR_SPECIFIC command. I think maybe it's used for some GUI debugger purpose. I would like to know what's the exact purpose of this command.
There are some commands for memory debug. Below function handles one of the commands. I don't unstand why the length should be less than 32 bytes?? And what's the value in the pmbus_buffer[1]?
Uint8 pmbus_write_parm_info(void)
{
Uint8 temp_index;
int16 temp_offset;
Uint8 temp_count;
Uint8 temp_size;
Uint8 temp_length;
temp_index = pmbus_buffer[2];
temp_offset = pmbus_buffer[3] + (pmbus_buffer[4]<<8);
temp_count = pmbus_buffer[5];
temp_size = pmbus_buffer[6];
temp_length = temp_count * temp_size;
// ----- Validate the incoming arguments -----
// ----- VALIDATE DATA -----
// Verify that the specified base is valid
// 0 (RAM) and 1 (REGS) are valid for reading or writing.
// 2 (DFLASH), 3 (PFLASH_CONST), and 4 (PFLASH_PROG) are read-only.
// They will be flagged in pmbus_write_parm_value() if a write to them is attempted.
if(temp_index > NUM_MEMORY_SEGMENTS) // Unsigned.
{
return PMBUS_INVALID_DATA; // Error: Invalid Index
}
// Verify that the message is short enough to fit
if(temp_length > 32)
{
return PMBUS_INVALID_DATA; // Error: Length greater than SAA capabilities.
}
// Verify that the size is 1, 2, or 4 bytes
if ((temp_size != 1) && (temp_size != 2) && (temp_size != 4))
{
return PMBUS_INVALID_DATA; // Error: Invalid size
}
Looking forward to your reply
BR
Dana
