http://forums.leaflabs.com/topic.php?id=574 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:26:31 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=574#post-3149 Fri, 17 Dec 2010 11:14:42 +0000 gbulmer 3149@http://forums.leaflabs.com/ <p>1. All STM32F103's have a manufactured in 'bootloader' in 'ROM', which can not be overwritten. It will bootload over USART1, but not USB. I have used an FTDI USB to 3V3 serial cable to do this. If you have an Arduino, you could use that too.</p> <p>2. You can also program the flash of any STM32F using JTAG and a suitable program, e.g. OpenOCD.</p> <p>Once the Maple bootloader has been installed, then the STM32F103 can self program over USB.</p> <p>STM32F105's and STM32F107's can bootload from USB. </p> http://forums.leaflabs.com/topic.php?id=574#post-3148 Fri, 17 Dec 2010 03:41:33 +0000 SaraFarina 3148@http://forums.leaflabs.com/ <p>ok!!<br /> and now, to flash it on the stm32 do I need a JTAG and OpenOCD or can I do it through serial port (USB)?? </p> http://forums.leaflabs.com/topic.php?id=574#post-3144 Thu, 16 Dec 2010 16:46:58 +0000 gbulmer 3144@http://forums.leaflabs.com/ <p>On Maple BOOT1 is tied to ground, but BOOT0 can be pulled up using a button called BUT, so it can be high or low. </p> <p>Booting is triggered by the host PC or pressing the RESET button. </p> http://forums.leaflabs.com/topic.php?id=574#post-3142 Thu, 16 Dec 2010 08:52:18 +0000 SaraFarina 3142@http://forums.leaflabs.com/ <p>Hi,</p> <p>I have my own board, but I would like to use LeafLabs libraries. I need the bootloader in my cortex stm32f103 (also i have Windows XP, so i will need DFU and serial drivers). For that, I need to change some ports and pins (LED, button,...), but the question is both BOOT0 and BOOT1 are tied to ground and I think the bootloader available in your libraries conects BOOT0 to a button to start all the process.<br /> Could I use a normal button for initiate bootloader or should I need BOOT0 high level at some point??<br /> I have to change LED and button to make it work, but do i have to change anything else?? </p> <p>Thanks!!!</p> <p>PS:sorry but i dont know that much about hardware and firmware... </p>