1
0
mirror of https://github.com/hsoft/collapseos.git synced 2024-12-26 05:28:05 +11:00
collapseos/blk/595
Virgil Dupras 124da6adec Move SD Card subsystem outside of RC2014 recipe and add protocols
Although the SPI Relay driver is RC2014-specific, the SD Card driver
is generic enough to be a subsystem. That's the second subsystem we
add and this warrants, I think, the formalization of a new concept:
protocols.
2020-08-16 14:30:33 -04:00

13 lines
431 B
Plaintext

SPI relay driver
This driver is designed for a ad-hoc adapter card that acts as a
SPI relay between the z80 bus and the SPI device. Sending any-
thing on SPI_CSLOW and SPI_CSHIGH is expected to select/deselect
the device, and writing to SPI_DATA is expected to initiate a
byte exchange. The result of the exchange is excpected to be re-
trieved by reading SPI_DATA.
Provides the SPI relay protocol.
Load driver with "596 LOAD".