Search found 3 matches

by fasthands
Thu Oct 11, 2018 4:30 pm
Forum: General Discussion
Topic: Linux to ESP32 SDIO slave
Replies: 0
Views: 3929

Linux to ESP32 SDIO slave

Hi, Are there any skeleton linux driver examples to allow data transfer from Linux, acting as a SDIO host, to ESP32, acting as the SDIO slave? The ESP32 is been detected by the linux core SDIO drivers (mmc1: new SDIO card at address 0001) but I can't write to a ESP32 register or raise an interrupt f...
by fasthands
Thu Jul 19, 2018 8:48 am
Forum: General Discussion
Topic: UART ISR not located in IRAM
Replies: 14
Views: 20134

Re: UART ISR not located in IRAM

Works well thanks for the quick reply.
by fasthands
Wed Jul 18, 2018 11:28 am
Forum: General Discussion
Topic: UART ISR not located in IRAM
Replies: 14
Views: 20134

UART ISR not located in IRAM

What are the reason why the ESP IDF uart handler code does not put the ISR into IRAM. In the latest documentation (http://esp-idf.readthedocs.io/en/latest/api-reference/peripherals/uart.html) it states: "Do not set ESP_INTR_FLAG_IRAM here (the driver’s ISR handler is not located in IRAM)" Is there a...