Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-10-02 03:00:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(rmt): alloc channel memory from internal

Browse Source
This commit is contained in:
Chen Jichang
2025-10-10 18:11:24 +08:00
parent 89b8cbbf95
commit bc4fee11b5
2 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/esp_driver_rmt/src/rmt_rx.c
+3 -3
View File
@@ -188,8 +188,8 @@ esp_err_t rmt_new_rx_channel(const rmt_rx_channel_config_t *config, rmt_channel_
ESP_RETURN_ON_FALSE(config->flags.with_dma == 0, ESP_ERR_NOT_SUPPORTED, TAG, "DMA not supported");
#endif // SOC_RMT_SUPPORT_DMA
// malloc channel memory
uint32_t mem_caps = RMT_MEM_ALLOC_CAPS;
// allocate channel memory from internal memory because it contains atomic variable
uint32_t mem_caps = MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT;
rx_channel = heap_caps_calloc(1, sizeof(rmt_rx_channel_t), mem_caps);
ESP_GOTO_ON_FALSE(rx_channel, ESP_ERR_NO_MEM, err, TAG, "no mem for rx channel");
// gpio is not configured yet
@@ -197,7 +197,7 @@ esp_err_t rmt_new_rx_channel(const rmt_rx_channel_config_t *config, rmt_channel_
// create DMA descriptor
size_t num_dma_nodes = 0;
if (config->flags.with_dma) {
mem_caps |= MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA;
mem_caps |= MALLOC_CAP_DMA;
num_dma_nodes = config->mem_block_symbols * sizeof(rmt_symbol_word_t) / RMT_DMA_DESC_BUF_MAX_SIZE + 1;
num_dma_nodes = MAX(2, num_dma_nodes); // at least 2 DMA nodes for ping-pong
// DMA descriptors must be placed in internal SRAM
components/esp_driver_rmt/src/rmt_tx.c
+3 -3
View File
@@ -256,15 +256,15 @@ esp_err_t rmt_new_tx_channel(const rmt_tx_channel_config_t *config, rmt_channel_
ESP_RETURN_ON_FALSE(config->flags.with_dma == 0, ESP_ERR_NOT_SUPPORTED, TAG, "DMA not supported");
#endif
// malloc channel memory
uint32_t mem_caps = RMT_MEM_ALLOC_CAPS;
// allocate channel memory from internal memory because it contains atomic variable
uint32_t mem_caps = MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT;
tx_channel = heap_caps_calloc(1, sizeof(rmt_tx_channel_t) + sizeof(rmt_tx_trans_desc_t) * config->trans_queue_depth, mem_caps);
ESP_GOTO_ON_FALSE(tx_channel, ESP_ERR_NO_MEM, err, TAG, "no mem for tx channel");
// GPIO configuration is not done yet
tx_channel->base.gpio_num = -1;
// create DMA descriptors
if (config->flags.with_dma) {
mem_caps |= MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA;
mem_caps |= MALLOC_CAP_DMA;
// DMA descriptors must be placed in internal SRAM
uint32_t data_cache_line_size = cache_hal_get_cache_line_size(CACHE_LL_LEVEL_INT_MEM, CACHE_TYPE_DATA);
// the alignment should meet both the DMA and cache requirement