STM32H7B3I-EVAL中的OCTOSPI2与 Hypebus PSRAM IS66WVH8M8ALL-100一起使用报返回错误怎么解决?

问答对人有帮助，内容完整，我也想知道答案 0 我正在尝试将开发套件 STM32H7B3I-EVAL 中的 OCTOSPI2（连接器 MB1242）与 Hypebus PSRAM IS66WVH8M8ALL-100 一起使用。我成功地将内存配置为在内存映射模式下写入和读取，但是这只能在写入紧接着读取时才能完成。例如，如果我在写入地址后添加 1ms 延迟，读取相同的地址将返回错误的内容。超总线配置 __weak HAL_StatusTypeDef MX_OSPI_RAM_Init(OSPI_HandleTypeDef hospi, MX_OSPI_InitTypeDef Init) { OSPI_HyperbusCfgTypeDef sHyperbusCfg; HAL_StatusTypeDef status; /* OctoSPI initialization / hospi->Instance = OCTOSPI2; HAL_OSPI_DeInit(hospi); / * With Init->ClockPrescaler = 3, the RAM will run at 40 MHz * ClockPrescaler = 3 * Refresh = 160 / hospi->Init.FifoThreshold = 4; hospi->Init.DualQuad = HAL_OSPI_DUALQUAD_DISABLE; hospi->Init.MemoryType = HAL_OSPI_MEMTYPE_HYPERBUS; hospi->Init.DeviceSize = Init->MemorySize; hospi->Init.ChipSelectHighTime = 8; hospi->Init.FreeRunningClock = HAL_OSPI_FREERUNCLK_DISABLE; hospi->Init.ClockMode = HAL_OSPI_CLOCK_MODE_0; hospi->Init.ClockPrescaler = Init->ClockPrescaler; hospi->Init.SampleShifting = Init->SampleShifting; hospi->Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_ENABLE; hospi->Init.DelayBlockBypass = HAL_OSPI_DELAY_BLOCK_BYPASSED; hospi->Init.Refresh = 160;//373; /4us @40MHz/ hospi->Init.ChipSelectBoundary = 1; hospi->Init.ClkChipSelectHighTime = 0; hospi->Init.WrapSize = HAL_OSPI_WRAP_NOT_SUPPORTED; status = HAL_OSPI_Init(hospi); if (status == HAL_OK) { sHyperbusCfg.RWRecoveryTime = RW_RECOVERY_TIME; sHyperbusCfg.AccessTime = DEFAULT_INITIAL_LATENCY; sHyperbusCfg.WriteZeroLatency = HAL_OSPI_LATENCY_ON_WRITE; sHyperbusCfg.LatencyMode = HAL_OSPI_FIXED_LATENCY; status = HAL_OSPI_HyperbusCfg(&hospi_ram[0], &sHyperbusCfg, HAL_OSPI_TIMEOUT_DEFAULT_VALUE); } return status; } int32_t BSP_OSPI_RAM_Init(uint32_t Instance, BSP_OSPI_RAM_Init_t Init) { int32_t ret; MX_OSPI_InitTypeDef ospi_init; /* Check if the instance is supported / if (Instance >= OSPI_RAM_INSTANCES_NUMBER) { ret = BSP_ERROR_WRONG_PARAM; } else { / Check if the instance is already initialized / if (Ospi_Ram_Ctx[Instance].IsInitialized == OSPI_ACCESS_NONE) { #if (USE_HAL_OSPI_REGISTER_CALLBACKS == 0) / Msp OSPI initialization / OSPI_RAM_MspInit(&hospi_ram[Instance]); #else / Register the OSPI MSP Callbacks / if(OspiRam_IsMsPCBValid[Instance] == 0UL) { if(BSP_OSPI_RAM_RegisterDefaultMspCallbacks(Instance) != BSP_ERROR_NONE) { return BSP_ERROR_PERIPH_FAILURE; } } #endif / USE_HAL_OSPI_REGISTER_CALLBACKS / / Fill config structure / ospi_init.ClockPrescaler = 7; / OctoSPI clock = 280MHz / ClockPrescaler = 40MHz / ospi_init.MemorySize = (uint32_t)POSITION_VAL(ISS66WVH8M8_RAM_SIZE); ospi_init.SampleShifting = HAL_OSPI_SAMPLE_SHIFTING_NONE; / STM32 OSPI interface initialization / if (MX_OSPI_RAM_Init(&hospi_ram[Instance], &ospi_init) != HAL_OK) { ret = BSP_ERROR_PERIPH_FAILURE; } / Configure the memory / else if (BSP_OSPI_RAM_ConfigHyperRAM(Instance, Init->LatencyType, Init->BurstType, Init->BurstLength) != BSP_ERROR_NONE) { ret = BSP_ERROR_COMPONENT_FAILURE; } else { ret = BSP_ERROR_NONE; } } else { ret = BSP_ERROR_NONE; } } / Return BSP status / return ret; } 测试代码* BSP_OSPI_RAM_Init_t sOSPI_RAM_Init; / Init external ram / sOSPI_RAM_Init.LatencyType = BSP_OSPI_RAM_FIXED_LATENCY; sOSPI_RAM_Init.BurstType = BSP_OSPI_RAM_LINEAR_BURST; sOSPI_RAM_Init.BurstLength = BSP_OSPI_RAM_BURST_32_BYTES; if (BSP_OSPI_RAM_Init(0, &sOSPI_RAM_Init) != BSP_ERROR_NONE) { Error_Handler(); } / Put exRam in memory mapped mode / if (BSP_OSPI_RAM_EnableMemoryMappedMode(0) != BSP_ERROR_NONE) { Error_Handler(); } while (1) { mem_addr = (__IO uint16_t)(OCTOSPI2_BASE + address); for (index = 0; index < BUFFERSIZE; (index += 2)) { / Writing Sequence --------------------------------------------------- / mem_addr = (uint16_t)&aTxBuffer[index]; //HAL_Delay(1); <<<---- Adding this delay cause the read to fail /* Reading Sequence --------------------------------------------------- / if (mem_addr != (uint16_t)&aTxBuffer[index]) { BSP_LED_On(LED_RED); } mem_addr++; } BSP_LED_Toggle(LED_GREEN); HAL_Delay(100); address += OSPI_HYPERRAM_INCR_SIZE; if (address >= OSPI_HYPERRAM_END_ADDR) { address = 0; } } 我尝试以多种方式更改计时配置，但都没有成功。目前 MCU 的运行频率为 280MHz，OctoSPI 时钟为 40MHz。有人有类似的问题吗？ 0
2022-12-26 08:08:50　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 41 个回答。邀请回答 chm5 该类别下有 39 个回答。邀请回答 hgimtk 该类别下有 33 个回答。邀请回答 HengDu 该类别下有 30 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 hwp0415229 该类别下有 28 个回答。邀请回答可口可甜该类别下有 26 个回答。邀请回答 kingnet6688 该类别下有 26 个回答。邀请回答颜刚YanG 该类别下有 26 个回答。邀请回答 zyh34997 该类别下有 25 个回答。邀请回答柱子图宁该类别下有 25 个回答。邀请回答 kingnet9999 该类别下有 25 个回答。邀请回答 jenny042 该类别下有 25 个回答。邀请回答 andyfly7 该类别下有 25 个回答。邀请回答麻酱该类别下有 25 个回答。邀请回答 iyfhnvbn 该类别下有 24 个回答。邀请回答哈哈神神该类别下有 24 个回答。邀请回答成长的小师弟该类别下有 24 个回答。邀请回答 gXDhn 该类别下有 24 个回答。邀请回答举报 cherry1989 相关推荐 • 请问STM32L4 Errata MCU支持PSRAM吗 199 • 为STM32H7B3I-EVAL板手动添加BSP文件时报错怎么解决？ 121 • 在STM32H7B3I-EVAL中可以同时使用所有接口吗 135 • 如何为STM32H7A3上的HyperRAM和内存映射模式写入OctoSPI2呢？ 322 • 为什么无法在STM32H7B3I-EVAL的同屏正在进行的项目中使用键盘示例？ 156 • STM32H7B3LIH6Q是否有MCU的功能？ 131 • 在STM32CubeIDE中怎样去使用W957A8MFYA呢？ 92 • 为什么STM32CubeU5无法通过RCC_AHB2ENR1启用GPIOIEN呢？ 135 • STM32H7B3LIH6Q晶体选择对CubeMX时钟配置的影响是什么？ 99 • Dual Quad Configuration可以与OctoSPI接口上的Quad SPI AP Memory一起使用吗？ 226 1个回答

答案对人有帮助，有参考价值 0 我实际上发现我忘记在 EVAL 板上安装电阻 R75。

2022-12-26 13:52:09 评论举报张桂兰