Support for new board - STM32 Maple Compatible - Spruce

I have one of these boards:
http://www.ebay.com/itm/Spruce-STM32-Arduino-Maple-Compatible-Board-Without-LCD-/201006487188
http://www.ebay.com/itm/Spruce-STM32-Arduino-Compatible-Board-With-LCD-/110934072470

It is compatible with Maple/Olimexino, but has the bigger CPU:
STM32F103VET6, TQFP 100 pins FLASH 512K BYTES, SRAM:64KBYTES
It also has:

• 2.4" LCD (optional)
  
• Ethernet through ENC28J60
  
• RTC
  
• MicroSD socket
  
• SPI Flash EPROM
  
• RS232 port
  
• JTAG connector
  
  

So it looks like a great platform for Espruino with enough "headroom" in the flash.
I am looking to get Espruino running on this board, I assume I can just modify the makefile and add a new Python .py file to the https://github.com/espruino/Espruino/tree/master/boards folder (based on the Maple and or the HYSTM32_24 boards) to at least get Espruino loaded and possibly also LCD support?
Later on hopefully also support Ethernet.
Are there any other things to look out for/gotchas or does this sound like the right approach?
Thanks,
Mike

That sounds like just the right approach. As it's the STM32F103VET6 you might be best off starting with this board: http://www.espruino.com/ReferenceHYSTM32_24

Sadly the LCD driver (lcd_fsmc.c) still has loads of stuff hard-coded so you'll probably have to add some more #ifdefs to get your board to work properly.

Ethernet would be great - I've just updated the code so that it's a lot easier to support different devices. ENC28J60 support would be fantastic - I've got a few of those kicking around here, although they don't implement TCP/IP so they'd require an IP stack be compiled in.

By the way, Espruino uses the STM32's RTC already - but it doesn't use the external 32kHz oscillator (only the dodgy internal one). If you get that working I'd really appreciate a pull request - as I've left unpopulated pads on the Espruino board :)

I'm very impressed with the new TI Tiva-C Launchpad at $19.99
https://estore.ti.com/tiva-connected-launchpad.aspx
TM4C1294NCPDT MCU: 120MHz 32-bit ARM Cortex-M4 CPU with floating point
1MB Flash, 256KB SRAM, 6KB EEPROM
Integrated 10/100 Ethernet MAC+PHY
8x 32-bit timers
dual 12-bit 2MSPS ADCs
motion control PWMs
USB H/D/O, and many additional serial communication interfaces

You're welcome to port Espruino over... However porting to a different manufacturer's CPU will prove difficult as all the peripherals will be different.