diff options
Diffstat (limited to 'libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4')
| -rw-r--r-- | libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_ll_fmc.c | 101 |
1 files changed, 56 insertions, 45 deletions
diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_ll_fmc.c b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_ll_fmc.c index bdf38fc..8010aef 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_ll_fmc.c +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_ll_fmc.c @@ -1413,25 +1413,35 @@ HAL_StatusTypeDef FMC_SDRAM_Init(FMC_SDRAM_TypeDef *Device, FMC_SDRAM_InitTypeDe } else /* FMC_Bank2_SDRAM */ { -/////////////////////////////// -// BEGIN PIECE OF WEIRD CODE // -/////////////////////////////// -// -// tmpr1 = Device->SDCR[FMC_SDRAM_BANK1]; -// -// /* Clear NC, NR, MWID, NB, CAS, WP, SDCLK, RBURST, and RPIPE bits */ -// tmpr1 &= ((uint32_t)~(FMC_SDCR1_NC | FMC_SDCR1_NR | FMC_SDCR1_MWID | \ -// FMC_SDCR1_NB | FMC_SDCR1_CAS | FMC_SDCR1_WP | \ -// FMC_SDCR1_SDCLK | FMC_SDCR1_RBURST | FMC_SDCR1_RPIPE)); -// -// tmpr1 |= (uint32_t)(Init->SDClockPeriod |\ -// Init->ReadBurst |\ -// Init->ReadPipeDelay); -// -/////////////////////////////// -// END PIECE OF WEIRD CODE // -/////////////////////////////// - +#if 0 /* broken code */ + tmpr1 = Device->SDCR[FMC_SDRAM_BANK1]; + + /* Clear NC, NR, MWID, NB, CAS, WP, SDCLK, RBURST, and RPIPE bits */ + tmpr1 &= ((uint32_t)~(FMC_SDCR1_NC | FMC_SDCR1_NR | FMC_SDCR1_MWID | \ + FMC_SDCR1_NB | FMC_SDCR1_CAS | FMC_SDCR1_WP | \ + FMC_SDCR1_SDCLK | FMC_SDCR1_RBURST | FMC_SDCR1_RPIPE)); + + tmpr1 |= (uint32_t)(Init->SDClockPeriod |\ + Init->ReadBurst |\ + Init->ReadPipeDelay); + + tmpr2 = Device->SDCR[FMC_SDRAM_BANK2]; + + /* Clear NC, NR, MWID, NB, CAS, WP, SDCLK, RBURST, and RPIPE bits */ + tmpr2 &= ((uint32_t)~(FMC_SDCR1_NC | FMC_SDCR1_NR | FMC_SDCR1_MWID | \ + FMC_SDCR1_NB | FMC_SDCR1_CAS | FMC_SDCR1_WP | \ + FMC_SDCR1_SDCLK | FMC_SDCR1_RBURST | FMC_SDCR1_RPIPE)); + + tmpr2 |= (uint32_t)(Init->ColumnBitsNumber |\ + Init->RowBitsNumber |\ + Init->MemoryDataWidth |\ + Init->InternalBankNumber |\ + Init->CASLatency |\ + Init->WriteProtection); + + Device->SDCR[FMC_SDRAM_BANK1] = tmpr1; + Device->SDCR[FMC_SDRAM_BANK2] = tmpr2; +#else tmpr2 = Device->SDCR[FMC_SDRAM_BANK1]; /* Clear NC, NR, MWID, NB, CAS, WP, SDCLK, RBURST, and RPIPE bits */ @@ -1446,10 +1456,8 @@ HAL_StatusTypeDef FMC_SDRAM_Init(FMC_SDRAM_TypeDef *Device, FMC_SDRAM_InitTypeDe Init->CASLatency |\ Init->WriteProtection); -// -// Device->SDCR[FMC_SDRAM_BANK1] = tmpr1; -// Device->SDCR[FMC_SDRAM_BANK2] = tmpr2; +#endif } return HAL_OK; @@ -1500,27 +1508,32 @@ HAL_StatusTypeDef FMC_SDRAM_Timing_Init(FMC_SDRAM_TypeDef *Device, FMC_SDRAM_Tim } else /* FMC_Bank2_SDRAM */ { -/////////////////////////////// -// BEGIN PIECE OF WEIRD CODE // -/////////////////////////////// -// -// tmpr1 = Device->SDTR[FMC_SDRAM_BANK2]; -// -// /* Clear TMRD, TXSR, TRAS, TRC, TWR, TRP and TRCD bits */ -// tmpr1 &= ((uint32_t)~(FMC_SDTR1_TMRD | FMC_SDTR1_TXSR | FMC_SDTR1_TRAS | \ -// FMC_SDTR1_TRC | FMC_SDTR1_TWR | FMC_SDTR1_TRP | \ -// FMC_SDTR1_TRCD)); -// -// tmpr1 |= (uint32_t)(((Timing->LoadToActiveDelay)-1) |\ -// (((Timing->ExitSelfRefreshDelay)-1) << 4) |\ -// (((Timing->SelfRefreshTime)-1) << 8) |\ -// (((Timing->WriteRecoveryTime)-1) <<16) |\ -// (((Timing->RCDDelay)-1) << 24)); -// -/////////////////////////////// -// END PIECE OF WEIRD CODE // -/////////////////////////////// +#if 0 /* broken code */ + tmpr1 = Device->SDTR[FMC_SDRAM_BANK2]; + + /* Clear TMRD, TXSR, TRAS, TRC, TWR, TRP and TRCD bits */ + tmpr1 &= ((uint32_t)~(FMC_SDTR1_TMRD | FMC_SDTR1_TXSR | FMC_SDTR1_TRAS | \ + FMC_SDTR1_TRC | FMC_SDTR1_TWR | FMC_SDTR1_TRP | \ + FMC_SDTR1_TRCD)); + + tmpr1 |= (uint32_t)(((Timing->LoadToActiveDelay)-1) |\ + (((Timing->ExitSelfRefreshDelay)-1) << 4) |\ + (((Timing->SelfRefreshTime)-1) << 8) |\ + (((Timing->WriteRecoveryTime)-1) <<16) |\ + (((Timing->RCDDelay)-1) << 24)); + + tmpr2 = Device->SDTR[FMC_SDRAM_BANK1]; + + /* Clear TMRD, TXSR, TRAS, TRC, TWR, TRP and TRCD bits */ + tmpr2 &= ((uint32_t)~(FMC_SDTR1_TMRD | FMC_SDTR1_TXSR | FMC_SDTR1_TRAS | \ + FMC_SDTR1_TRC | FMC_SDTR1_TWR | FMC_SDTR1_TRP | \ + FMC_SDTR1_TRCD)); + tmpr2 |= (uint32_t)((((Timing->RowCycleDelay)-1) << 12) |\ + (((Timing->RPDelay)-1) << 20)); + Device->SDTR[FMC_SDRAM_BANK2] = tmpr1; + Device->SDTR[FMC_SDRAM_BANK1] = tmpr2; +#else tmpr2 = Device->SDTR[FMC_SDRAM_BANK1]; /* Clear TMRD, TXSR, TRAS, TRC, TWR, TRP and TRCD bits */ @@ -1534,10 +1547,8 @@ HAL_StatusTypeDef FMC_SDRAM_Timing_Init(FMC_SDRAM_TypeDef *Device, FMC_SDRAM_Tim (((Timing->WriteRecoveryTime)-1U) <<16U) |\ (((Timing->RCDDelay)-1U) << 24U)); -// -// Device->SDTR[FMC_SDRAM_BANK2] = tmpr1; -// Device->SDTR[FMC_SDRAM_BANK2] = tmpr2; +#endif } return HAL_OK; |