Sorry, but I'm still a little unclear. The documentation for i2s_read() says for the output parameter bytes_read, "Number of bytes read, if timeout, bytes read will be less than the size passed in". It sounds like if you pass portMAX_DELAY for no timeout, the number of bytes read will be the number ...

Did you add a call to spiffs_create_partition_image() to your CMakeLists.txt for the new partition? Thanks, @MicroController. That did the trick. I did the last SPIFFS partitions over a year ago and forgot that I also have to add this directive to CMakeLists.txt. I incorrectly assumed that mentioni...

Hi, I have a custom partition table that includes a few SPIFFS partitions. Everything worked well until I added another SPIFFS partition. idf.py won't package that SPIFFS partition and I don't know why. Here is my custom partition table: nvs, data, nvs, , 0x6000, phy_init, data, phy, , 0x1000, facto...

Hi all: I am still puzzled by my question from last November. Any knowledgeable soul out there know the answer?

AP

Hi, I understand the need for more than 1 DMA buffer to ensure continuous reading of I2S data. I assume for two DMA buffers, the CPU processes one buffer while DMA fills the second and then repeats the process by flipping the buffers. The documentation states that recv_buffer_size > dma_buf_count * ...

Hi all, for one of my projects I have two different partition.csv files depending on a Kconfig compile-time configuration. ESP-IDF lets me select one custom partition.csv file, but I would like to make that dependent on an application-specific setting. I realize this is more of a CMake question than...

I also ran into the same issue: I'm using full-duplex to talk to a SD card and half-duplex to another SPI device. The patch that is mention in this thread unfortunately does not work for me.

AP

So, after some more digging it appears that my problem is the same as the one described here: https://www.esp32.com/viewtopic.php?t=13719 What I wasn't explicit about in my original post: everything worked fine when I used full-duplex connections to both SPI devices. Things started to break once I s...

Hi all. I have two SPI devices connected to an ESP32; a micro-SD card and an FGPA. Both work fine, however, because of some timing issues I can clock the SPI signal to the FPGA only at 5 MHz. I want to use the dummy bit workaround as described in the documentation, however, this let me down a rabbit...

So, this is an example of "the code is the documentation." I guess this is a question for the Espressif folks: how much up to date is the TRM and when will the documentation catch up with the current hardware/software?

AP