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HAL_ChibiOS: make check_limit_flash_1M() available in main firmware

This commit is contained in:
Andrew Tridgell 2022-10-04 17:42:05 +11:00 committed by Randy Mackay
parent b5a5241f96
commit d3e4cc59b0
2 changed files with 22 additions and 0 deletions
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17
libraries/AP_HAL_ChibiOS/hwdef/common/stm32_util.c
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@ -558,3 +558,20 @@ unsigned int stm32_rand_generate_nonblocking(unsigned char* output, unsigned int
}
#endif // #if HAL_USE_HW_RNG && defined(RNG)
/*
see if we should limit flash to 1M on devices with older revisions of STM32F427
*/
bool check_limit_flash_1M(void)
{
#ifdef STM32F427xx
const uint16_t revid = (*(uint32_t *)DBGMCU_BASE) >> 16;
static const uint16_t badrevs[4] = { 0x1000, 0x1001, 0x1003, 0x1007 };
for (uint8_t i=0; i<4; i++) {
if (revid == badrevs[i]) {
return true;
}
}
#endif
return false;
}

5
libraries/AP_HAL_ChibiOS/hwdef/common/stm32_util.h
View File

@ -54,6 +54,11 @@ uint64_t stm32_get_utc_usec(void);
// hook for FAT timestamps
uint32_t get_fattime(void);
/*
see if we should limit flash to 1M on devices with older revisions of STM32F427
*/
bool check_limit_flash_1M(void);
// one-time programmable area
#if defined(FLASH_OTP_BASE)
#define OTP_BASE FLASH_OTP_BASE