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sys/usb/usbus/dfu: check min sector size for STM32 F2/F4/F7

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STM32F2/4/7 MCUs use sectors instead of pages, where the minimum sector size is defined by FLASHPAGE_MIN_SECTOR_SIZE, which is 16KB or 32KB (the first sector) depending on the CPU_MODEL. In this case SLOT0_OFFSET must be a multiple of the minimum sector size to cover a whole sector.
This commit is contained in:
Gunar Schorcht 2022-11-24 10:39:25 +01:00
parent 421cbc5c29
commit 09e94b3e15
1 changed files with 11 additions and 1 deletions
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12
sys/usb/usbus/dfu/dfu.c
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@ -101,7 +101,17 @@ void usbus_dfu_init(usbus_t *usbus, usbus_dfu_device_t *handler, unsigned mode)
DEBUG("DFU: initialization\n");
assert(usbus);
assert(handler);
assert((SLOT0_OFFSET % FLASHPAGE_SIZE) == 0);
#if defined(FLASHPAGE_SIZE)
static_assert((SLOT0_OFFSET % FLASHPAGE_SIZE) == 0,
"SLOT0_OFFSET has to be a multiple of FLASHPAGE_SIZE");
#elif defined(FLASHPAGE_MIN_SECTOR_SIZE)
/* STM32F2/4/7 MCUs use sectors instead of pages, where the minimum sector
* size is defined by FLASHPAGE_MIN_SECTOR_SIZE, which is 16KB or 32KB
* (the first sector) depending on the CPU_MODEL. In this case SLOT0_OFFSET
* must be a multiple of the minimum sector size to cover a whole sector. */
static_assert((SLOT0_OFFSET % FLASHPAGE_MIN_SECTOR_SIZE) == 0,
"SLOT0_OFFSET has to be a multiple of FLASHPAGE_MIN_SECTOR_SIZE");
#endif
memset(handler, 0, sizeof(usbus_dfu_device_t));
handler->usbus = usbus;
handler->handler_ctrl.driver = &dfu_driver;