From aef5c595999b6caf2da1e198a39ccf99afa44286 Mon Sep 17 00:00:00 2001 From: davor Date: Tue, 26 Dec 2017 23:16:30 +0100 Subject: [PATCH] readme and upgrade update --- README.md | 2 ++ doc/pcb-v1.7-upgrade.md | 14 ++++++++------ 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index e1990f3..2a74544 100644 --- a/README.md +++ b/README.md @@ -139,4 +139,6 @@ Make the prototype. [x] I2C resistors increased 470->2.2k [ ] GPDI series C=100nF to each differential line. [ ] more reliable shutdown + [ ] check SDRAM raster 0.8 or 0.808 ? + diff --git a/doc/pcb-v1.7-upgrade.md b/doc/pcb-v1.7-upgrade.md index 2bebc85..2e3f57c 100644 --- a/doc/pcb-v1.7-upgrade.md +++ b/doc/pcb-v1.7-upgrade.md @@ -4,6 +4,14 @@ This is the first board produced, most important parts work which is mirracle in itself, and there are some mistakes, luckily most of them can be fixed. +Mount: + + U3, U4, U5: TLV62569DBV + SDCARD: SCHD3A0100 + U11 I2C: PCA9306D SOIC-8 150-mil + U10 FLASH: IS25LP032D-JNLE-TR SOIC-8 150mil + U9 WIFI: ESP32, but not all pins! read below: + FIX: Replace this parts: D11=LED (High efficiency RED recommended) @@ -18,12 +26,6 @@ under the GPDI connector. Optionally, as alternative software shutdown, connected J2 "25-" pin to R13-D15 junction. -Mount: - - SDCARD: SCHD3A0100 - U11 I2C: PCA9306D SOIC-8 150-mil - U10 FLASH: IS25LP032D-JNLE-TR SOIC-8 150mil - U9 WIFI: ESP32, but not all pins! read below: Don't connect ESP32 pins leading to SD card, in the top 10-pin row, connect only 2 pins on left side and 2 pins on right