SD card via SDIO on STM32F4 based builds

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•

Gordon
Actually I just had a few minutes free so I added this.

You won't be able to specify software SPI via the BOARD.py file, but you can do it in JavaScript:
```
var spi = new SPI();
spi.setup({mosi:C7,miso:C8,sck:C9});
E.connectSDCard(spi,C6);
console.log(require("fs").readdirSync());
```

•

CKnight in reply to @Gordon

Oh wow, that totally works. Quick test on a random sd card I have.

>var spi = new SPI();
={  }
>spi.setup({mosi:D2,miso:C8,sck:C12});
=undefined
>E.connectSDCard(spi,C11);
=undefined
>console.log(require("fs").readdirSync());
[
  "debug",
  "dtbs",
  "MLO",
  "u-boot.img",
  "zImage",
  "initrd.img",
  "uEnv.txt",
  "ID.txt",
  "SOC.sh",
  "flash-eMMC.txt",
  "App",
  "Drivers",
  "Docs",
  "scripts",
  "autorun.inf",
  "LICENSE.txt",
  "README.htm",
  "README.md",
  "START.htm",
  "uInitrd"
 ]
=undefined
Uncaught SyntaxError: Got ?[173] expected EOF
 at line 1 col 41
console.log(require("fs").readdirSync());


>console.log(require("fs").readFile("autorun.inf"));
[Autorun]
shellexecute=START.htm
icon=Docs\beagle.ico
label=BeagleBone Getting Started
action=Open BeagleBone Getting Started Guide
[DeviceInstall]
DriverPath=Drivers\Windows\FTDI
DriverPath=Drivers\Windows\RNDIS
=undefined
>

Not sure if that Syntaxerror is anything of note, but it does work. Just built it for the 32F4DISCOVERY since my other board isn't on hand.

  'SD' :  { 'pin_cs' :  'C11',
            'pin_di' :  'D2',
            'pin_do' :  'C8',
            'pin_clk' :  'C12' },

It didn't like the USE_FILESYSTEM define without at least having the pins declared in the board.py

That's great though. I'm sure it'll help a lot of people out.

We're still bound and determined to get the SDIO library working. We have it at least compiling for the Discovery, whether it actually works I dunno yet, going to try that out next.

SD card via SDIO on STM32F4 based builds

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