Search found 16 matches

by dalbert
Thu Nov 10, 2016 4:28 pm
Forum: Bug Reports
Topic: Undefined reference to _sbrk_r for variadic arguments Topic is solved
Replies: 8
Views: 5724

Re: Undefined reference to _sbrk_r for variadic arguments Topic is solved

Did you solve this?

I am trying to build an old project; I installed the latest GNU ARM Embedded Tools (5.4 2016q3) and upgraded from ChibiOS 2.6.7 to 2.6.8 and without adding --specs=nosys.specs to the compiler options, it fails with the same undefined reference.
by dalbert
Mon May 23, 2016 8:47 pm
Forum: Open Discussion about the Commercial Options
Topic: Sad to see more restricted commercial use
Replies: 11
Views: 13372

Re: Sad to see more restricted commercial use

Hi Giovanni, I am developing a product (IP gateway for agricultural telemetry); I really like ChibiOS; I selected it over FreeRTOS and designed the product using ChibiOS 2.6.7 prior to your commercial licensing. The move to a commercial license is a little bracing, but I understand the need to fund ...
by dalbert
Tue Aug 25, 2015 8:26 pm
Forum: ChibiOS/RT
Topic: USB Serial blocking
Replies: 4
Views: 3481

Re: USB Serial blocking

Many thanks Giovanni!
I didn't realize the virtual serial port blocked when not connected, I had assumed it behaved like a standard serial port. I appreciate you confirming this!
- Dave
by dalbert
Tue Aug 25, 2015 5:30 pm
Forum: ChibiOS/RT
Topic: USB Serial blocking
Replies: 4
Views: 3481

USB Serial blocking

I am new to ChibiOS and am using it with lwIP over Ethernet. The code generally works, but for debugging, I added some chsnprintf() statements to display status on the USB serial shell each time I transmit a lwIP packet. I've noticed that if an active USB serial shell connection is not present, the ...
by dalbert
Thu Apr 02, 2015 3:42 pm
Forum: STM32 Support
Topic: 2.6.7 usb_lld_pump: no return statement
Replies: 5
Views: 3054

Re: 2.6.7 usb_lld_pump: no return statement

Another approach to disable the bogus warning for GCC is to disable the warning just for the problem function. For example, my usb_lld.c is modified as follows: #if defined __GNUC__ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wreturn-type" #endif static msg_t usb_lld_pump(...
by dalbert
Wed Mar 11, 2015 10:30 pm
Forum: Development and Feedback
Topic: STM32-E407 Ethernet performance!
Replies: 32
Views: 20188

Re: STM32-E407 Ethernet performance!

Sorry I'm being slow, but I really have looked...I downloaded the latest ChibiOS-master (is this the right place to get it: https://github.com/ChibiOS/ChibiOS), and went through the folders and could not find community. Is it somewhere else? BTW, I am really enjoying ChibiOS; I have only been using ...
by dalbert
Sun Mar 08, 2015 5:16 pm
Forum: Development and Feedback
Topic: STM32-E407 Ethernet performance!
Replies: 32
Views: 20188

Re: STM32-E407 Ethernet performance!

I couldn't find lwip in 3.0.0. The os/ext directory only has CMSIS. Where is it? I tried downloading it separately but the directory structure is very different.
by dalbert
Sat Mar 07, 2015 1:34 pm
Forum: Development and Feedback
Topic: STM32-E407 Ethernet performance!
Replies: 32
Views: 20188

Re: STM32-E407 Ethernet performance!

What lwip are you using to test in 3.0.0?
by dalbert
Sat Mar 07, 2015 12:00 am
Forum: STM32 Support
Topic: STM32-E407 can't blink led
Replies: 10
Views: 5768

Re: STM32-E407 can't blink led

I know this is an old post, but I had a similar problem: for a rev E board, you need to change the top level Makefile to use boards/OLIMEX_STM32_E407_REV_D *and also* change the board.mk file in OLIMEX_STM32_E407_REV_D (which still points to the pre-rev-D files).
by dalbert
Fri Mar 06, 2015 11:39 pm
Forum: Development and Feedback
Topic: STM32-E407 Ethernet performance!
Replies: 32
Views: 20188

Re: STM32-E407 Ethernet performance!

I found the problem! The problem is in the board.mk file in boards/OLIMEX_STM32_E407_REV_D. It refers back to the source files in the original OLIMEX_STM32_E407 board directory instead of to the files in the _REV_D directory, so even when you change the reference in the top level Makefile, it is sti...

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