STM32F4 Discovery, SPI and microSD

Okay @Gordon I went through the process and everything goes fine until I connect to the board in the webIDE. I get the following message in the console:

>echo(0);
Uncaught Error: Function "log" not found!
 at line 1 col 9
console.log("<<"+"<<<"+JSON.stringify(process.env)+">>>"+">>...
         ^

I swear I didn't delete the log function :)

Running something simple like 1+2 returns the correct answer.

I put a simple text file on the SD card (text.txt) and then tried to read it out (it simply contains the word 'hello') like this:

>var f = require("fs").readFile("test.txt");
ERROR: Unable to mount SD card : NOT_READY

Any tips?

This is exactly what I did to get to this point:

git clone -b RELEASE_1V69 https://github.com/espruino/Espruino.git  espruino_1v69

The relevant sections of my Makefile look like this:

STM32F4DISCOVERY=1
...
RELEASE=1
...
else ifdef STM32F4DISCOVERY
...
USE_FILESYSTEM=1

and the boards/STM32F4DISCOVERY.py:

devices = {
...
  'SD' :  { 'pin_cs' :  'B12',
              'pin_di' :  'B15',
              'pin_do' :  'B14',
              'pin_clk':  'B13' },
};

I then just ran the command make and out popped espruino_1v70_stm32f4discovery.bin (I was expecting a file with a 1v69 version).

I must say I can't figure out how to use stm32loader.py. With both USB cables plugged into the Discovery board, without jumpers on the GND-PB2 and BOOT0-VDD pin pairs the board is mounted on /dev/ttyACM2.

Running the following command:

python scripts/stm32loader.py -k -p /dev/ttyACM2 -evw espruino_1v70_stm32f4discovery.bin

I end up with the following error:

Reading data from espruino_1v70_stm32f4discovery.bin
Can't init. Ensure BOOT0=1, BOOT1=0, and reset device
Traceback (most recent call last):
  File "scripts/stm32loader.py", line 554, in <module>
    bootversion = cmd.cmdGet()
  File "scripts/stm32loader.py", line 140, in cmdGet
    if self.cmdGeneric(0x00):
  File "scripts/stm32loader.py", line 137, in cmdGeneric
    return self._wait_for_ack(hex(cmd))
  File "scripts/stm32loader.py", line 101, in _wait_for_ack
    raise CmdException("Unrecognised response 0x%x to %s" % (ask, info))
__main__.CmdException: Unrecognised response 0xff to 0x0

So instead I use the stlink application as follows:

• Disconnect power and put jumpers across the GND-PB2 and BOOT0-VDD pin pairs.
  
• Connect up the USB ST-Link cable.
  

• Run the following command:

  sudo ./st-flash write espruino_1v70_stm32f4discovery.bin 0x08000000
  

Everything flashes fine and I can remove the jumpers and restart the board.