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readme and upgrade update

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pull/3/head
davor 7 years ago
parent 3d7d394437
commit aef5c59599
2 changed files with 10 additions and 6 deletions
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2
README.md
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@ -139,4 +139,6 @@ Make the prototype.
[x] I2C resistors increased 470->2.2k [x] I2C resistors increased 470->2.2k
[ ] GPDI series C=100nF to each differential line. [ ] GPDI series C=100nF to each differential line.
[ ] more reliable shutdown [ ] more reliable shutdown
[ ] check SDRAM raster 0.8 or 0.808 ?

14
doc/pcb-v1.7-upgrade.md
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@ -4,6 +4,14 @@ This is the first board produced, most important
parts work which is mirracle in itself, and there parts work which is mirracle in itself, and there
are some mistakes, luckily most of them can be fixed. 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: FIX: Replace this parts:
D11=LED (High efficiency RED recommended) D11=LED (High efficiency RED recommended)
@ -18,12 +26,6 @@ under the GPDI connector.
Optionally, as alternative software shutdown, Optionally, as alternative software shutdown,
connected J2 "25-" pin to R13-D15 junction. 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, 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 in the top 10-pin row, connect only 2 pins on left side and 2 pins on right

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