From 8718368c9bd71d9263641dba6879c9c089f3e8f5 Mon Sep 17 00:00:00 2001 From: "Mr.Blinky" Date: Fri, 29 Jun 2018 14:21:19 +0200 Subject: [PATCH] Update README.md --- README.md | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index 44493eb..9ef735e 100644 --- a/README.md +++ b/README.md @@ -29,7 +29,7 @@ This package contains all the currently available Arduboy libraries with changes | Arduboy function | Arduboy
Leonardo/Micro | DevelopmentKit | ProMicro 5V
(standard wiring) | ProMicro 5V
(alternate wiring) | | ---------------- | ---------------------- | ----------- | ---------------------------------- | --------------------------------- | -| OLED CS | 12 PORTD6 | 6 PORTD7 | GND | 1/TXO PORTD3* | +| OLED CS | 12 PORTD6 | 6 PORTD7 | GND**** | 1/TXO PORTD3* | | OLED DC | 4 PORTD4 | 4 PORTD4 | 4 PORTD4 | 4 PORTD4 | | OLED RST | 6 PORTD7 | 12 PORTD6 | 6 PORTD7 | 2 PORTD1* | | SPI SCK | 15 PORTB1 | 15 PORTB1 | 15 PORTB 1 | 15 PORTB1 | @@ -66,10 +66,16 @@ prevent the IO pins from possible damage, speaker pin 2 should *NOT* be configured as an output. (***) -Future Flash cart support: -* 0 PORTD2 Future flash cart chip select +Flash cart support: +* 0 PORTD2 flash cart chip select * 14 PORTB3 flash cart data in (MISO) +(****) +When using serial flash with the Pro Micro standard wiring, OLED_CS (chip select) cannot be grounded (always active). +In this case a simple circuit with a general purpose PNP transistor and two resistors can be used to deactive OLED_CS while CART_CS is active. + +**TODO** add schematic + ## (future) expansion connector An expansion connector can be added to a modified or Homemade Arduboy in the form of a 12 pin male header with 0.1"pitch. which can be used for: