ESP32-S3R2 如何配置开启PSRAM？ 我开启PSRAM后 报错：找不到PSRAM芯片

[yaochuanfu]

如题 ，esp-idf V4.4.6 ESP32-S3R2 配置开启PSRAM后，编译运行代码输出异常：

E (327) psram: PSRAM ID read error: 0x00ffffff, PSRAM chip not found or not supported, or wrong PSRAM line mode
E (330) spiram: SPI RAM enabled but initialization failed. Bailing out.
I (337) cpu_start: Failed to init external RAM; continuing without it.
PSRAM的配置如下所示，这个配置是什么地方有异常？
该如何正确配置才能启用PSRAM？

Code: [Select all] [Expand/Collapse]

1.  
2. CONFIG_ESP32S3_SPIRAM_SUPPORT=y
3.  
4. #
5. # SPI RAM config
6. #
7. CONFIG_SPIRAM_MODE_QUAD=y
8. # CONFIG_SPIRAM_MODE_OCT is not set
9. CONFIG_SPIRAM_TYPE_AUTO=y
10. # CONFIG_SPIRAM_TYPE_ESPPSRAM16 is not set
11. # CONFIG_SPIRAM_TYPE_ESPPSRAM32 is not set
12. # CONFIG_SPIRAM_TYPE_ESPPSRAM64 is not set
13. CONFIG_SPIRAM_SIZE=-1
14. CONFIG_SPIRAM_CLK_IO=30
15. CONFIG_SPIRAM_CS_IO=26
16. # CONFIG_SPIRAM_FETCH_INSTRUCTIONS is not set
17. # CONFIG_SPIRAM_RODATA is not set
18. # CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY is not set
19. # CONFIG_SPIRAM_SPEED_120M is not set
20. CONFIG_SPIRAM_SPEED_80M=y
21. # CONFIG_SPIRAM_SPEED_40M is not set
22. CONFIG_SPIRAM=y
23. CONFIG_SPIRAM_BOOT_INIT=y
24. CONFIG_SPIRAM_IGNORE_NOTFOUND=y
25. # CONFIG_SPIRAM_USE_MEMMAP is not set
26. # CONFIG_SPIRAM_USE_CAPS_ALLOC is not set
27. CONFIG_SPIRAM_USE_MALLOC=y
28. CONFIG_SPIRAM_MEMTEST=y
29. CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=16384
30. # CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP is not set
31. CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
32. # end of SPI RAM config

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[ESP_William]

您好，

根据您提供的 sdkconfig 可以正常使用 ESP32-S3R2 的 PSRAM。

可以尝试使用附件中提供的 sdkconfig 替换 esp-idf/examples/get-started/hello_world 例程中的 sdkconfig 进行测试。
若还无法使用可以检查其他硬件问题或更换芯片排查。

[yaochuanfu]

重新配置后 没有问题了 ，但是出现了另外一个问题: 使用串口的时候，调用时uart_driver_install函数，uart_alloc_driver_obj()未申请到内存，查看底层发现heap_caps_calloc()未申请到内存，实际查看，空闲内存还有124K之多。请问还需要修改其他配置吗？

SPRAM配置如下：

#
# SPI RAM config
#
CONFIG_SPIRAM_MODE_QUAD=y
# CONFIG_SPIRAM_MODE_OCT is not set
CONFIG_SPIRAM_TYPE_AUTO=y
# CONFIG_SPIRAM_TYPE_ESPPSRAM16 is not set
# CONFIG_SPIRAM_TYPE_ESPPSRAM32 is not set
# CONFIG_SPIRAM_TYPE_ESPPSRAM64 is not set
CONFIG_SPIRAM_SIZE=-1
CONFIG_SPIRAM_CLK_IO=30
CONFIG_SPIRAM_CS_IO=26
# CONFIG_SPIRAM_FETCH_INSTRUCTIONS is not set
# CONFIG_SPIRAM_RODATA is not set
# CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY is not set
# CONFIG_SPIRAM_SPEED_120M is not set
# CONFIG_SPIRAM_SPEED_80M is not set
CONFIG_SPIRAM_SPEED_40M=y
CONFIG_SPIRAM=y
CONFIG_SPIRAM_BOOT_INIT=y
# CONFIG_SPIRAM_IGNORE_NOTFOUND is not set
# CONFIG_SPIRAM_USE_MEMMAP is not set
# CONFIG_SPIRAM_USE_CAPS_ALLOC is not set
CONFIG_SPIRAM_USE_MALLOC=y
CONFIG_SPIRAM_MEMTEST=y
CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=16384
# CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP is not set
CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
# end of SPI RAM config