mchck buspirate SPI try to enter ezPort mode (non-working at the moment) moved to wiki at https://github.com/mchck/mchck/wiki/ezPort

mchck-ezPort-buspirate.txt

newest version of this gist is part of wiki at https://github.com/mchck/mchck/wiki/ezPort

ezPort setup for flasing rig is deescibed at https://mchck.org/blog/2013-09-12-mc_hck_flashing_rig

pinout from updated https://github.com/mchck/mchck/wiki/Pinout

MCU pinput source http://cache.freescale.com/files/32bit/doc/data_sheet/K20P48M50SF0.pdf
ezPort description, chapter 29, http://cache.freescale.com/files/32bit/doc/ref_manual/K20P48M50SF0RM.pdf

MCU  MCHCK   ezPort
-------------------
PTA0 SWD_CLK EZP_CK -> BP CLK (SWD CK marking on silkscreen)
PTA1 PL4     EZP_DI -> BP MOSI
PTA2 PL5     EZP_DO -> BP MISO
PTA4 PL6     EZP_CS -> BP CS

start bus pirate

dpavlin@blue:/blue-zfs/mchck$ ~/bin/bp.sh 
+ microcom -p /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AE01J55Q-if00-port0
connected to /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AE01J55Q-if00-port0
Escape character: Ctrl-\
Type the escape character followed by c to get to the menu or q to quit
HiZ>v
Pinstates:
1.(BR)  2.(RD)  3.(OR)  4.(YW)  5.(GN)  6.(BL)  7.(PU)  8.(GR)  9.(WT)  0.(Blk)
GND     3.3V    5.0V    ADC     VPU     AUX     CLK     MOSI    CS      MISO
P       P       P       I       I       I       I       I       I       I       
GND     0.00V   0.00V   0.00V   0.00V   L       L       L       L       L       

# we might need to turn on power before we pull CS pin hight, because it seems that this powers MCU itself

# you can abbrivate this to
HiZ> m 5 1 1 2 1 2 2
SPI (spd ckp ske smp csl hiz)=( 1 0 1 0 1 0 )
Ready
SPI>[
/CS ENABLED

# press and hold reset button while turning power on

SPI>W
POWER SUPPLIES ON

# you can release reset button

SPI>]
/CS DISABLED

# read status on board which is not secured

SPI>[0x05 r]
/CS ENABLED
WRITE: 0x05 
READ: 0x00 
/CS DISABLED

# read status on secured board

SPI>[0x05 r]
/CS ENABLED
WRITE: 0x05 
READ: 0x81 
/CS DISABLED

# write enable

SPI>[0x06]
/CS ENABLED
WRITE: 0x06 
/CS DISABLED

# bulk-erase

SPI>[0xBE]
/CS ENABLED
WRITE: 0xBE 
/CS DISABLED

# verify that board is not secured

SPI>[0x05 r]
/CS ENABLED
WRITE: 0x05 
READ: 0x83 
/CS DISABLED


# reset board

SPI>[0xB9]
/CS ENABLED
WRITE: 0xB9 
/CS DISABLED