collapseos/blk/595

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".
rc2014: separate SPI relay and SDC drivers My intention is to reuse the SPI relay to program AVR MCUs from a RC2014. 2020-06-30 08:48:00 +10:00			`SPI relay driver`

			`This driver is designed for a ad-hoc adapter card that acts as a`
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. 2020-08-17 04:30:33 +10:00			`SPI relay between the z80 bus and the SPI device. Sending any-`
rc2014: separate SPI relay and SDC drivers My intention is to reuse the SPI relay to program AVR MCUs from a RC2014. 2020-06-30 08:48:00 +10:00			`thing on SPI_CSLOW and SPI_CSHIGH is expected to select/deselect`
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. 2020-08-17 04:30:33 +10:00			`the device, and writing to SPI_DATA is expected to initiate a`
rc2014: separate SPI relay and SDC drivers My intention is to reuse the SPI relay to program AVR MCUs from a RC2014. 2020-06-30 08:48:00 +10:00			`byte exchange. The result of the exchange is excpected to be re-`
			`trieved by reading SPI_DATA.`

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. 2020-08-17 04:30:33 +10:00			`Provides the SPI relay protocol.`
rc2014: separate SPI relay and SDC drivers My intention is to reuse the SPI relay to program AVR MCUs from a RC2014. 2020-06-30 08:48:00 +10:00
			`Load driver with "596 LOAD".`