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Difference between revisions of "Zero2/Hardware/Revisions"

Line 12: Line 12:
 
| 1.0
 
| 1.0
 
| Initial version
 
| Initial version
* Lack of clearance around microSD card slot resulting the card will be blocked for insertion. (Workaround: lift the card corner slightly during insertion, so the card can "sit" on that blocking component when fully inserted)
+
Known issues:
 +
* <del>Lack of clearance around microSD card slot resulting the card will be blocked for insertion. (Workaround: lift the card corner slightly during insertion, so the card can "sit" on that blocking component when fully inserted)</del>
 
* TYPE-C headers are slightly misaligned.
 
* TYPE-C headers are slightly misaligned.
 
* PCB mounting hole location is different from Zero, as such a proposed universal case cannot share holes on the USB connector side.
 
* PCB mounting hole location is different from Zero, as such a proposed universal case cannot share holes on the USB connector side.
 
* USB 3 port may not be recognized by the board. (Manually fixed on sample boards)
 
* USB 3 port may not be recognized by the board. (Manually fixed on sample boards)
* GPIO pin 16 and 24 are connected on the same bus. 16 will be replaced by SARADC_CH1.
+
* <del>GPIO pin 16 and 24 are connected on the same bus. 16 will be replaced by SARADC_CH1.</del>
* GPIO pin 36 is an open drain pin. Works fine for input but need pull up for output.
+
* <del>GPIO pin 36 is an open drain pin. Works fine for input but need pull up for output.</del>
* Fan's PWM generator is occupied by VDDCPU_B. Preferably an unused PWM pin should go there. Otherwise <code>gpio-fan</code> will be used in device tree.
+
* <del>Fan's PWM generator is occupied by VDDCPU_B. Preferably an unused PWM pin should go there. Otherwise <code>gpio-fan</code> will be used in device tree.</del>
 
* Green LED might be too bright
 
* Green LED might be too bright
 
|-
 
|-
 
| 1.1
 
| 1.1
 +
| Changes:
 +
* Fix microSD card clearance.
 +
* Pin 16 is now connected to GPIOZ_8.
 +
* Pin 22 is now connected to GPIOZ_9.
 +
* Pin 36 is now pulled up.
 +
* Fan is now connected to GPIOAO_11 (PWMAO_A).
 +
* Relocated fan header, and switched to a smaller CSI connector.
 +
* Update CSI, DSI pin definition.
 +
|-
 +
| 1.2
 
| Pending
 
| Pending
 +
Proposed changes:
 +
* Point fan header to the side of the board.
 
|}
 
|}

Revision as of 07:55, 6 May 2022

 Radxa Zero 2 >  Hardware >  Hardware revisions
Version Comment
1.0 Initial version

Known issues:

  • Lack of clearance around microSD card slot resulting the card will be blocked for insertion. (Workaround: lift the card corner slightly during insertion, so the card can "sit" on that blocking component when fully inserted)
  • TYPE-C headers are slightly misaligned.
  • PCB mounting hole location is different from Zero, as such a proposed universal case cannot share holes on the USB connector side.
  • USB 3 port may not be recognized by the board. (Manually fixed on sample boards)
  • GPIO pin 16 and 24 are connected on the same bus. 16 will be replaced by SARADC_CH1.
  • GPIO pin 36 is an open drain pin. Works fine for input but need pull up for output.
  • Fan's PWM generator is occupied by VDDCPU_B. Preferably an unused PWM pin should go there. Otherwise gpio-fan will be used in device tree.
  • Green LED might be too bright
1.1 Changes:
  • Fix microSD card clearance.
  • Pin 16 is now connected to GPIOZ_8.
  • Pin 22 is now connected to GPIOZ_9.
  • Pin 36 is now pulled up.
  • Fan is now connected to GPIOAO_11 (PWMAO_A).
  • Relocated fan header, and switched to a smaller CSI connector.
  • Update CSI, DSI pin definition.
1.2 Pending

Proposed changes:

  • Point fan header to the side of the board.