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---+ Single Chip Card への変更点 ---++ 4pin connector 元々SCCに付いていたコネクタでは、接触抵抗により電圧降下が著しかったため、PWR INの4pin connectorを付け替え [変更前]VDDA : 約1.1V、VDDD : 約0.85V [変更後]VDDA : 1.28V、VDDD : 1.25V (両者ともTEXIOでdig/ana1.3Vかけた状態でのコネクタ部分の電圧値) まだ多少の電圧降下が見られるものの改善された ---++ 実装抵抗等 LDO modeで動かすときのrecommnedation変更に対応 * remove VDDD/GND sense jumpers R51/R52 * remove external RST jumpers R49/R50 (元々未実装) * connect GTX2 & GTX3 (JP10/JP11) (元々つながっていた) * remove GND/Shield DC connection R55/R57 (R55は元々未実装) * mount jumper pin IMUX R (attach jumper) * mount RIOFSA/RIOFSD 240kOhm (insted of 250kOhm) * pull-up Vctrl R3 100kOhm (前のrecommnedationで付けていたR3,R4を取り除いてから) -- %USERSIG{AtlasjSilicon - 2018-05-28}% ---++ Comments <br />%COMMENT%
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Topic revision: r1 - 2018-05-28
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AtlasjSilicon
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