From 313a24b31676e4d74362f9280e54d467815e7514 Mon Sep 17 00:00:00 2001 From: Uwe Bonnes Date: Tue, 15 Jan 2013 15:20:42 +0100 Subject: usbdfu: Allow for different, but constant flash page sizes --- src/platforms/stm32/usbdfu.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/src/platforms/stm32/usbdfu.c b/src/platforms/stm32/usbdfu.c index 12bb26c..f809a2a 100644 --- a/src/platforms/stm32/usbdfu.c +++ b/src/platforms/stm32/usbdfu.c @@ -158,6 +158,13 @@ static u8 usbdfu_getstatus(u32 *bwPollTimeout) } } +#if defined (STM32_CAN) +#define FLASHBLOCKSIZE 2048 +#else +#define FLASHBLOCKSIZE 1024 +#endif +static uint32_t last_erased_pages=0xffffffff; + static void usbdfu_getstatus_complete(usbd_device *dev, struct usb_setup_data *req) { @@ -175,8 +182,15 @@ usbdfu_getstatus_complete(usbd_device *dev, struct usb_setup_data *req) return; } switch(prog.buf[0]) { - case CMD_ERASE: - flash_erase_page(*(u32*)(prog.buf+1)); + case CMD_ERASE: { + u32 page_start = *(u32*)(prog.buf+1); + + page_start &= (~(FLASHBLOCKSIZE-1)); + if (page_start != last_erased_pages) { + flash_erase_page(page_start); + last_erased_pages = page_start; + } + } case CMD_SETADDR: prog.addr = *(u32*)(prog.buf+1); } -- cgit v1.2.3