collapseos/blk/596

CODE (spix) ( n -- n )
    HL POP, chkPS, A L LDrr,
    SPI_DATA OUTiA,
    ( wait until xchg is done )
    BEGIN, SPI_CTL INAi, A ORr, JRNZ, AGAIN,
    SPI_DATA INAi,
    L A LDrr,
    HL PUSH,
;CODE
CODE (spie) ( n -- )
    HL POP, chkPS, A L LDrr,
    SPI_CTL OUTiA,
;CODE
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			`CODE (spix) ( n -- n )`
Make the SPI Relay protocol support multiple devices Working on programming AVR chips exposes a glaring omission in my first design of the SPI Relay: not allowing multiple devices make this task hard. I constantly have to unplug my SD card before, plug the AVR chip holder, then play a bit, then unplug the AVR holder, then replug the SD card... My prototype for a SPI relay design is built, but I haven't tested it yet. I need to adapt the code first, which is what I do here. When the prototype is tested, I'll update the SDC recipe with a new schema. 2020-09-17 23:36:16 +10:00			`HL POP, chkPS, A L LDrr,`
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_DATA OUTiA,`
Make the SPI Relay protocol support multiple devices Working on programming AVR chips exposes a glaring omission in my first design of the SPI Relay: not allowing multiple devices make this task hard. I constantly have to unplug my SD card before, plug the AVR chip holder, then play a bit, then unplug the AVR holder, then replug the SD card... My prototype for a SPI relay design is built, but I haven't tested it yet. I need to adapt the code first, which is what I do here. When the prototype is tested, I'll update the SDC recipe with a new schema. 2020-09-17 23:36:16 +10:00			`( wait until xchg is done )`
			`BEGIN, SPI_CTL INAi, A ORr, JRNZ, AGAIN,`
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_DATA INAi,`
			`L A LDrr,`
			`HL PUSH,`
			`;CODE`
Make the SPI Relay protocol support multiple devices Working on programming AVR chips exposes a glaring omission in my first design of the SPI Relay: not allowing multiple devices make this task hard. I constantly have to unplug my SD card before, plug the AVR chip holder, then play a bit, then unplug the AVR holder, then replug the SD card... My prototype for a SPI relay design is built, but I haven't tested it yet. I need to adapt the code first, which is what I do here. When the prototype is tested, I'll update the SDC recipe with a new schema. 2020-09-17 23:36:16 +10:00			`CODE (spie) ( n -- )`
			`HL POP, chkPS, A L LDrr,`
			`SPI_CTL OUTiA,`
			`;CODE`