rozważania o CNC

$ sudo apt-get install flex bison libgmp3-dev libmpfr-dev libncurses5-dev
libmpc-dev autoconf texinfo build-essential libftdi-dev
$ git clone https://github.com/esden/summon-arm-toolchain.git
$ cd summon-arm-toolchain
$ sudo ./summon-arm-toolchain
$ cd ..
$ sudo apt-get install libsgutils2-dev libusb-1.0-dev
$ git clone https://github.com/texane/stlink.git
$ cd stlink
$ make

smark@hpecik:~/ARM/stlink$ sudo ./gdbserver/st-util fu bar
non-option ARGV-elements: fu bar 
2012-04-19T11:36:28 INFO src/stlink-usb.c: -- exit_dfu_mode
2012-04-19T11:36:28 INFO src/stlink-common.c: Loading device parameters....
2012-04-19T11:36:28 INFO src/stlink-common.c: Device connected is: F4 device, id 0x20006411
2012-04-19T11:36:28 INFO src/stlink-common.c: SRAM size: 0x30000 bytes (192 KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 16384 bytes
Chip ID is 00000413, Core ID is  2ba01477.
KARL - should read back as 0x03, not 60 02 00 00
init watchpoints
Listening at *:4242...

$ EXPORT PATH=~/sat/bin:$PATH
$ cd stlink/examples/blink
$ make CONFIG_STM32F4_DISCOVERY=1

/* missing type */
typedef unsigned int uint32_t;


/* hardware configuration */
#define GPIOD 0x40020C00              /* port D */
#define GPIOD_MODER (GPIOD + 0x00)    /* port mode register */
#define LED_PORT_ODR (GPIOD + 0x14)   /* port output data register */
#define LED_GREEN (1 << 12)           /* port D, pin 12 */
#define LED_ORANGE (1 << 13)          /* port D, pin 13 */
#define LED_RED (1 << 14)             /* port D, pin 14 */
#define LED_BLUE (1 << 15)            /* port D, pin 15 */

void _tmain(void) {
	main();
}
static inline void setup_leds(void)
{
  *(volatile uint32_t*)GPIOD_MODER |= (1 << (12 * 2)) | (1 << (13 * 2)) |
  	(1 << (13 * 2)) | (1 << (14 * 2)) | (1 << (15 * 2));
}


static inline void switch_leds_on(void)
{
  *(volatile uint32_t*)LED_PORT_ODR = LED_BLUE | LED_GREEN | LED_ORANGE | LED_RED;
}

static inline void switch_leds_off(void)
{
  *(volatile uint32_t*)LED_PORT_ODR = 0;
}

#define delay()						            \
do {							                \
  register unsigned int i;				        \
  for (i = 0; i < 1000000; ++i)				    \
    __asm__ __volatile__ ("nop\n\t":::"memory");\
} while (0)

/* static void __attribute__((naked)) __attribute__((used)) main(void) */
void main(void)
{
  setup_leds();

  while (1)
  {
    switch_leds_on();
    delay();
    switch_leds_off();
    delay();
  }
}

$ arm-none-eabi-gdb
(gdb) target extended localhost:4242
(gdb) load blink_F4.elf
(gdb) continue

sudo ./gdbserver/st-util fu bar
non-option ARGV-elements: fu bar 
2012-04-21T22:14:13 WARN src/stlink-usb.c: Couldn't find any ST-Link/V2 devicesm

sudo ./gdbserver/st-util fu bar
non-option ARGV-elements: fu bar 
2012-04-21T22:18:25 INFO src/stlink-usb.c: -- exit_dfu_mode
2012-04-21T22:18:25 INFO src/stlink-common.c: Loading device parameters....
2012-04-21T22:18:25 INFO src/stlink-common.c: Device connected is: F4 device, id 0x20006411
2012-04-21T22:18:25 INFO src/stlink-common.c: SRAM size: 0x30000 bytes (192 KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 16384 bytes
Chip ID is 00000413, Core ID is  2ba01477.
KARL - should read back as 0x03, not 60 02 00 00
init watchpoints
Listening at *:4242...

mark@hpecik:~/ARM/stlink/example/blink$ arm-none-eabi-gdb
GNU gdb (GDB) 7.3.1
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=x86_64-unknown-linux-gnu --target=arm-none-eabi".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) target extended localhost:4242
Remote debugging using localhost:4242
0x0800788c in ?? ()
(gdb) load blink_
blink_32L.elf   blink_32VL.elf  blink_F4.elf    
(gdb) load blink_F4.elf 
Loading section .text, size 0x48 lma 0x20000000
Start address 0x20000000, load size 72
Transfer rate: 900 bytes/sec, 72 bytes/write.
(gdb) continue 

st-util fu bar
[...]
Listening at *:4242...

target extended localhost:4242

load blink_F4.elf

continue

man arm-none-eabi-gdb