Koheron products currently ship with firmware V0.x by default. Firmware V1 is under active development and is not publicly available yet.
Contact us if you would like early access or want to evaluate V1 firmware on your device.
memr
Read one EEPROM user-memory page through a silent binary transaction.
memr accepts one hexadecimal page number from 0 through 3F:
memr <page>\r
The command is not echoed and produces no prompt, line ending, or text error. Read a one-byte length followed by exactly that many payload bytes. A successful payload has length 36:
[24] [status=00] [page] [32 data bytes] [crc16 low] [crc16 high]
The CRC is CRC16-CCITT, initialized to FFFF, over status + page + data. An error has length 4 and contains [status] [page] [crc16 little-endian]; its CRC covers status + page. An unparseable page is reported as FF.
Status values are 0 success, 1 invalid page, 2 invalid length, 3 invalid CRC, 4 access denied, and 5 EEPROM I/O error. Multibyte values are little-endian.
For example, a successful read of page 00 begins 24 00 00, followed by 32 data bytes and their two-byte frame CRC. An invalid page request such as memr 40\r returns 04 01 FF CE 30.
Addressed numeric and serial-number forms use the same response. A broadcast form such as @* memr 0\r executes without sending a reply.