diff options
Diffstat (limited to 'ports/esp32s2/common-hal/microcontroller/Processor.c')
| -rw-r--r-- | ports/esp32s2/common-hal/microcontroller/Processor.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ports/esp32s2/common-hal/microcontroller/Processor.c b/ports/esp32s2/common-hal/microcontroller/Processor.c index fffd1a1b1..eb65f2d10 100644 --- a/ports/esp32s2/common-hal/microcontroller/Processor.c +++ b/ports/esp32s2/common-hal/microcontroller/Processor.c @@ -66,17 +66,21 @@ STATIC uint8_t swap_nibbles(uint8_t v) { void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) { memset(raw_id, 0, COMMON_HAL_MCU_PROCESSOR_UID_LENGTH); - uint8_t *ptr = &raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH-1]; + uint8_t *ptr = &raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH - 1]; // MAC address contains 48 bits (6 bytes), 32 in the low order word uint32_t mac_address_part = REG_READ(EFUSE_RD_MAC_SPI_SYS_0_REG); - *ptr-- = swap_nibbles(mac_address_part & 0xff); mac_address_part >>= 8; - *ptr-- = swap_nibbles(mac_address_part & 0xff); mac_address_part >>= 8; - *ptr-- = swap_nibbles(mac_address_part & 0xff); mac_address_part >>= 8; + *ptr-- = swap_nibbles(mac_address_part & 0xff); + mac_address_part >>= 8; + *ptr-- = swap_nibbles(mac_address_part & 0xff); + mac_address_part >>= 8; + *ptr-- = swap_nibbles(mac_address_part & 0xff); + mac_address_part >>= 8; *ptr-- = swap_nibbles(mac_address_part & 0xff); // and 16 in the high order word mac_address_part = REG_READ(EFUSE_RD_MAC_SPI_SYS_1_REG); - *ptr-- = swap_nibbles(mac_address_part & 0xff); mac_address_part >>= 8; + *ptr-- = swap_nibbles(mac_address_part & 0xff); + mac_address_part >>= 8; *ptr-- = swap_nibbles(mac_address_part & 0xff); } |