本帖最后由 regsofweb 于 2023-8-23 09:49 编辑
APS6404L-3SQR,64M bits(8M bytes, 2^23) and connected to OSPI2 byQSPI mode
CubeMX settings：
Ensure all gpios' speed are set as "very high"
Parameters follow datasheet. The OSPI clk source is 125M.
Enable interrupt
Set as "Device" in MPU
#define PS_OSPI hospi2 #define OCTOSPIx_BASE OCTOSPI2_BASE #define TOTAL_PS_SIZE (8*1024*1024) // PSRAM commands #define FAST_READ_QUAD 0xEB #define QUAD_WRITE 0x38 #define ENTER_QUAD_MODE 0x35 #define EXIT_QUAD_MODE 0xF5 // settings refer to datasheet #define FAST_READ_QUAD_DUMMY_CYCLES 6 #define WRITE_QUAD_DUMMY_CYCLES 0 #define ENTER_QUAD_DUMMY_CYCLES 0
void EnableMemMappedQuadMode(void) {
OSPI_RegularCmdTypeDef sCommand;
OSPI_MemoryMappedTypeDef sMemMappedCfg;
sCommand.FlashId = HAL_OSPI_FLASH_ID_1;
sCommand.InstructionMode = HAL_OSPI_INSTRUCTION_4_LINES;
sCommand.InstructionSize = HAL_OSPI_INSTRUCTION_8_BITS;
sCommand.InstructionDtrMode = HAL_OSPI_INSTRUCTION_DTR_DISABLE;
sCommand.AddressMode = HAL_OSPI_ADDRESS_4_LINES;
sCommand.AddressSize = HAL_OSPI_ADDRESS_24_BITS;
sCommand.AddressDtrMode = HAL_OSPI_ADDRESS_DTR_DISABLE;
sCommand.AlternateBytesMode = HAL_OSPI_ALTERNATE_BYTES_NONE;
sCommand.DataMode = HAL_OSPI_DATA_4_LINES;
sCommand.DataDtrMode = HAL_OSPI_DATA_DTR_DISABLE;
sCommand.SIOOMode = HAL_OSPI_SIOO_INST_EVERY_CMD;
sCommand.Address = 0;
sCommand.NbData = 1;
/* Memory-mapped mode configuration for Quad Read mode 4-4-4*/
sCommand.OperationType = HAL_OSPI_OPTYPE_READ_CFG;
sCommand.Instruction = FAST_READ_QUAD;
sCommand.DummyCycles = FAST_READ_QUAD_DUMMY_CYCLES;
if (HAL_OSPI_Command(&PS_OSPI, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE)
!= HAL_OK) {
Error_Handler();
}
/* Memory-mapped mode configuration for Quad Write mode 4-4-4*/
sCommand.OperationType = HAL_OSPI_OPTYPE_WRITE_CFG;
sCommand.Instruction = QUAD_WRITE;
sCommand.DummyCycles = WRITE_QUAD_DUMMY_CYCLES;
sCommand.DQSMode = HAL_OSPI_DQS_ENABLE;
if (HAL_OSPI_Command(&PS_OSPI, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE)
!= HAL_OK) {
Error_Handler();
}
/*Disable timeout counter for memory mapped mode*/
sMemMappedCfg.TimeOutActivation = HAL_OSPI_TIMEOUT_COUNTER_DISABLE;
/*Enable memory mapped mode*/
if (HAL_OSPI_MemoryMapped(&PS_OSPI, &sMemMappedCfg) != HAL_OK) {
Error_Handler();
}
}
void EnterQuadMode(void) {
OSPI_RegularCmdTypeDef sCommand;
sCommand.OperationType = HAL_OSPI_OPTYPE_COMMON_CFG;
sCommand.FlashId = HAL_OSPI_FLASH_ID_1;
sCommand.Instruction = ENTER_QUAD_MODE;
sCommand.InstructionMode = HAL_OSPI_INSTRUCTION_1_LINE;
sCommand.InstructionSize = HAL_OSPI_INSTRUCTION_8_BITS;
sCommand.InstructionDtrMode = HAL_OSPI_INSTRUCTION_DTR_DISABLE;
sCommand.AddressMode = HAL_OSPI_ADDRESS_NONE;
sCommand.AlternateBytesMode = HAL_OSPI_ALTERNATE_BYTES_NONE;
sCommand.DataMode = HAL_OSPI_DATA_NONE;
sCommand.DummyCycles = ENTER_QUAD_DUMMY_CYCLES;
sCommand.DQSMode = HAL_OSPI_DQS_DISABLE;
sCommand.SIOOMode = HAL_OSPI_SIOO_INST_EVERY_CMD;
/*Enter QUAD mode*/
if (HAL_OSPI_Command(&PS_OSPI, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE)
!= HAL_OK) {
Error_Handler();
}
}
int PsRamTest() {
__IO uint32_t *mem_addr;
uint32_t wr = 0x55000000;
mem_addr = (__IO uint32_t*)OCTOSPIx_BASE;
for (int i = 0; i < TOTAL_PS_SIZE/4; i++) {
*mem_addr++ = wr++;
}
wr = 0x55000000;
int errcnt = 0;
mem_addr = (__IO uint32_t*)OCTOSPIx_BASE;
for (int i = 0; i < TOTAL_PS_SIZE/4; i++) {
if (*mem_addr++ != wr++) {
errcnt++;
}
} return errcnt;
}
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发表于 2023-8-22 11:20:56
发表于 2023-8-22 11:35:27
楼主
发表于 2023-8-23 14:12:02
