From 538f07b630b3c0bbd1582153bc5bc39a05a5fcfe Mon Sep 17 00:00:00 2001 From: Eliot Roxbergh Date: Sat, 17 Feb 2018 17:50:21 +0100 Subject: [PATCH] Minor D16 config --- guider.mdwn | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/guider.mdwn b/guider.mdwn index 9a600c8..169abb7 100644 --- a/guider.mdwn +++ b/guider.mdwn @@ -124,21 +124,23 @@ Buy a couple of flash chips in case of you breaking them, and to test different [Failed flashed try 2 (use Pomona holder), but should be correctly connected](resources/fail_flash_2.jpg) [Div pics a](resources/div_pics/d16_a.jpg), [Div pics b](resources/div_pics/d16_b.jpg), [Div pics c](resources/div_pics/d16_c.jpg), [Div pics d](resources/div_pics/d16_d.jpg), [Div pics e](resources/div_pics/d16_e.jpg), [Div pics f](resources/div_pics/d16_f.jpg), [Div pics g](resources/div_pics/d16_g.jpg) + +Use a holder for the ROM, do not solder. Use a female-male cable when connecting to BBB (or other board). According to Libreboot IRC shorter cables are NOT necessarily better. I found no cable length to be optimal (~5/10/20 cm), my final configuration used ~10 cm cables. +ROM-holder (eg.): 3M IC test socket, DIP 18, 218-3341-00-0602J ROM-chip (eg.): Winbond W25Q16DV (Note: the image built from Libreboot needs to match the ROM size. Specifically, if you're choosing pre-built this must match exactly AFAIK) -ROM-holder (eg.): 3M IC test socket, DIP 18, 218-3341-00-0602J - 1 CS -> 17 SPIO_CSO (red) - 2 DO (IO1) -> 21 SPIO_DO (black) - 3 /WP (IO2) -> 3.3V (yellow) - 4 GND -> GND (green) + 1 CS -> 17 SPIO_CSO + 2 DO (IO1) -> 21 SPIO_DO + 3 /WP (IO2) -> 3.3V + 4 GND -> GND - 8 VCC -> 3.3V (blue) - 7 /HOLD (IO3) -> 3.3V (orange) - 6 CLK -> 22 SPIO_SCLK (grey) - 5 DI (IO0) -> 18 (purple) + 8 VCC -> 3.3V + 7 /HOLD (IO3) -> 3.3V + 6 CLK -> 22 SPIO_SCLK + 5 DI (IO0) -> 18 #change background (dest must be called background.png /jpg) -- 2.39.2