Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos

[fw/altos] / src / stmf0 / ao_boot_pin.c

diff --git a/src/stmf0/ao_boot_pin.c b/src/stmf0/ao_boot_pin.c
index f21ce1b251ff5931d5609ebb1926b6d2d68966ed..b289b80439f9c10399d42715ca0026b6280face5 100644 (file)
--- a/src/stmf0/ao_boot_pin.c
+++ b/src/stmf0/ao_boot_pin.c
@@ -41,6 +41,6 @@ ao_boot_check_pin(void)
        /* Reset the chip to turn off the port and the power interface clock */
        ao_gpio_set_mode(&AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0);
        ao_disable_port(&AO_BOOT_APPLICATION_GPIO);
-       stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN);
+       stm_rcc.apb1enr &= ~(1UL << STM_RCC_APB1ENR_PWREN);
        return v == AO_BOOT_APPLICATION_VALUE;
 }