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rev 1 errata #1

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gkasprow opened this issue Jul 21, 2018 · 15 comments
Closed
1 task done

rev 1 errata #1

gkasprow opened this issue Jul 21, 2018 · 15 comments
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@gkasprow
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gkasprow commented Jul 21, 2018

  • BSC050N03LSGATMA1CT-ND footprint is wrong - 5x6 instead of 3x3. Mounted CSD17308Q3 instead
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gkasprow commented Aug 21, 2018

  • DNP R626
  • swapped SDA with SCL on Exar 2 programming connector
  • swap R592 with R593
  • swap blue LED with green one.

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gkasprow commented Oct 3, 2018

  • FP LEDs for Ethernet are too dim - change resistors values

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gkasprow commented Oct 3, 2018

  • R289 = VCC

@gkasprow gkasprow mentioned this issue Oct 17, 2018
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gkasprow commented Oct 31, 2018

  • add caps for 1.2V rail clock inputs.

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gkasprow commented Dec 11, 2018

  • short reset pins 1 and 2 of IC56
    obraz

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Crystal oscillator frequency, do not use 48MHz, must be 33.33MHz.

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gkasprow commented Nov 8, 2019

  • add pullup on ETH1 RX_CLK (PHY address)
  • short ETH1 CRS with ETH1 RX_DV

@krmac
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krmac commented Nov 8, 2019

Crystal oscillator frequency, do not use 48MHz, must be 33.33MHz.

Correct value is 50 MHz.

@kaolpr kaolpr added the bug Something isn't working label Jun 4, 2020
@kaolpr kaolpr added this to the AFCZ v1.1 milestone Jun 4, 2020
@filipswit
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@gkasprow could you please explain following:

  • R289 = VCC

  • add caps for 1.2V rail clock inputs.


BSC050N03LSGATMA1CT-ND footprint is wrong - 5x6 instead of 3x3. Mounted CSD17308Q3 instead

Transistors (CSD17308Q3 ) are already changed.

short reset pins 1 and 2 of IC56

Jumper was added to IC56
image

add pullup on ETH1 RX_CLK (PHY address)
short ETH1 CRS with ETH1 RX_DV

Added jumper and pullup:
image

@filipswit
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add caps for 1.2V rail clock inputs.

Where should I add caps?

@gkasprow
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All clock rails in the banks supplied from 1V2

@gkasprow
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they are clocked from 1V8 and common mode is far above 0.6V which is required by diff SSTL12

@filipswit
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ok, I haven't seen two clocks in SDRAM banks.

@gkasprow
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Can you open dedicated issues if you have some doubts? Otherwize we will miss important things.

@filipswit
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ok

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