void* heap_caps_malloc(size_t size, uint64_t capabilities); ``` 参数解释: 1. `size`:要分配的内存块的大小(以字节为单位)。 2. `capabilities`:一个 64 位整数,用于指定分配的内存块的能力。这可以是一个或多个预定义的能力值,例如`CAP_SYS_ADMIN`、`CAP_SYS_RAWIO` 等。
IRAM_ATTR void *heap_caps_malloc( size_t size, uint32_t caps){ void* ptr = heap_caps_malloc_base(size, caps); if (!ptr && size > 0){ heap_caps_alloc_failed(size, caps, __func__); } return ptr; } MicroController Posts:2189 ...
My question is if my transfer buffer is a void *heap_caps_malloc(size_t size, uint32_t caps) where size is multiple of 4 bytes and caps is MALLOC_CAP_DMA) is the buffer address guaranteed by be on a 32 bit boundary? If not what can one do to guarantee the buffer address is on...
void*buf3 =heap_caps_malloc(screenWidth * screenHeight, MALLOC_CAP_DMA);if(buf3 ==NULL) { Serial.printf("data is %d", buf3); } produces this output: Code:Select all datais0 vritzka Posts:32 Joined:Wed Sep 07, 2022 5:33 am ...
heap_caps_malloc() returning NULL on spiram Mon Nov 22, 2021 5:31 pm Hi, I am trying to allocate some memory from spiram, but heap_caps_malloc() is returning null. What's the problem ? In chip esp32-s3 is possible allocate dma memory from spiram !!! chip: esp32-s3 chip rev...
I'm having some new issues with the address returned from heap_caps_calloc with the MALLOC_CAP_DMA and assigning that address to the 20-bit outlink.addr property of the i2s_dev_t. The address returned from heap_caps_calloc is higher than 20 bits and I feel that I haven't had this ...