ChibiOS Free Embedded RTOS

ok, after a lot of singlestepping, that turned out to be a very subtle stacksmash. i feel so stupid now.

I did that.

I found this from FreeRTOS:

m

so I put that debugging code into _unhandled_exception.

Now I'm struggling with the idea that the current thread can change while singlestepping:


Breakpoint 1, Republisher::RepublisherThread (arg=0x200017a8) at republisher.cpp:17
17 ...

Hello,

I'm trying to track down a bug in my program; I have a line

>> myconfig->pub.publish((msg_t) &p);

where if I comment it out the program runs (working abnormally of course because data isn't getting out). However, if it's uncommented, I get a bus fault:

$4 = {CPUID = 0x410fc241, ICSR ...

I was getting the FSMC driver from ChibiOS/GFX to work on a Hy-MINI STM32V and while I got the demos going (see m) I ran into a couple of roadblocks along the way, mainly to do with the PAL differences:

I took SSD1289/gdisp_lld_board_example_fsmc.h and modified it
- what is meant to define ...

I'm using the paparazzi ppa gcc-4.6.2 from here:

http://paparazzi.enac.fr/wiki/Installation/Linux

they target stm32f1xx as their primary board.

this is the same compiler that I had working with lpc2148.

I'm having problems with strlen on an STM32F103; I had this working on LPC2148, but for some reason it crashes:

void
console_log (const char *c)
{
sdWrite (&SD1, (uint8_t *) c, strlen (c));
sdWrite (&SD1, (uint8_t *) "\n\r", 2);

}

on STM32, I had to write my own strlen; the builtin hangs hard.

Thanks for getting back to me so quick!

Is there any way to use SPI0 on the LPC2148? The lld code seems to be written for the SSP (ie SPI1).

In SPIConfig, there is a field for CS port and line, which is saved for later use with spiSelect(). This works well with a single slave, but if I want to use SPI as a bus (with one CS line per slave and the other lines shared) I'm not sure how to stop spiSelect() from asserting the same one each ...