diff options
Diffstat (limited to 'stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c')
| -rw-r--r-- | stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c b/stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c index 19ca4c8ce3..e77873b40d 100644 --- a/stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c +++ b/stmhal/hal/f7/src/stm32f7xx_hal_pwr_ex.c @@ -2,8 +2,8 @@ ****************************************************************************** * @file stm32f7xx_hal_pwr_ex.c * @author MCD Application Team - * @version V1.0.1 - * @date 25-June-2015 + * @version V1.1.2 + * @date 23-September-2016 * @brief Extended PWR HAL module driver. * This file provides firmware functions to manage the following * functionalities of PWR extension peripheral: @@ -12,7 +12,7 @@ ****************************************************************************** * @attention * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: @@ -157,6 +157,10 @@ HAL_StatusTypeDef HAL_PWREx_EnableBkUpReg(void) /* Enable Backup regulator */ PWR->CSR1 |= PWR_CSR1_BRE; + /* Workaround for the following hardware bug: */ + /* Id 19: PWR : No STANDBY wake-up when Back-up RAM enabled (ref. Errata Sheet p23) */ + PWR->CSR1 |= PWR_CSR1_EIWUP; + /* Get tick */ tickstart = HAL_GetTick(); @@ -182,6 +186,10 @@ HAL_StatusTypeDef HAL_PWREx_DisableBkUpReg(void) /* Disable Backup regulator */ PWR->CSR1 &= (uint32_t)~((uint32_t)PWR_CSR1_BRE); + /* Workaround for the following hardware bug: */ + /* Id 19: PWR : No STANDBY wake-up when Back-up RAM enabled (ref. Errata Sheet p23) */ + PWR->CSR1 |= PWR_CSR1_EIWUP; + /* Get tick */ tickstart = HAL_GetTick(); |