Timeline for How to interface two wire & three wire SPI device?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Dec 17, 2014 at 3:58 | vote | accept | nkg2743 | ||
| Dec 13, 2014 at 6:24 | answer | added | PkP | timeline score: 4 | |
| Dec 13, 2014 at 6:13 | comment | added | MarkU | Can you configure your MCU's MOSI ouptut pin to disable? If not, then use an external signal transistor as open-drain driver from MCU MOSI to ADC SDIO. Then MCU can transmit all 1's during the SDIO master-input time, and ADC can pull down to 0 as needed. If using single NPN or open-drain 74ALS125 gate, MCU must send inverted data. | |
| Dec 13, 2014 at 5:22 | comment | added | nkg2743 | @SomeHardwareGuy ADC 9266 datasheet link is analog.com/static/imported-files/data_sheets/AD9266.pdf | |
| Dec 13, 2014 at 5:19 | history | edited | nkg2743 | CC BY-SA 3.0 |
added 178 characters in body
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| Dec 13, 2014 at 5:17 | comment | added | nkg2743 | @NickAlexeev According ADC datasheet, we can send Instruction to ADC in every data transfer ( 16 bit instruction followed by data) which will decide SDIO to act as input or output. But the problem is with MCU pins how would I connect MISO & MOSI to single pin SDIO of ADC..? | |
| Dec 13, 2014 at 5:15 | comment | added | Some Hardware Guy | what's the part number / datasheet location for your adc? | |
| Dec 13, 2014 at 5:12 | comment | added | Nick Alexeev | What does the datasheet for the ADC say? This is the 2nd time you're being called on datasheet. Pattern emerging. | |
| Dec 13, 2014 at 5:09 | history | asked | nkg2743 | CC BY-SA 3.0 |