- Wed Sep 07, 2016 8:46 am
#54640
The basic setup for ESP HSPI in slave mode seems to work. But I have been able to make it work only in half duplex in both directions. In full duplex mode the ESP does not seem to send or receive. Has anyone made it work, any clues to make it work?
Also, in slave mode the ESP expects command/status/address bits in the leading bytes from the SPI master. This is what I understand from the examples and the documentation. Without these bits the ESP does not respond to the SPI transaction. Is it possible to avoid sending these command/status/address bits to successfully complete a full (or even half) duplex SPI transaction?
I posted these questions on the Espressif forum (http://bbs.espressif.com/viewtopic.php?f=7&t=2727). Perhaps I may reach a wider audience here.
Also, in slave mode the ESP expects command/status/address bits in the leading bytes from the SPI master. This is what I understand from the examples and the documentation. Without these bits the ESP does not respond to the SPI transaction. Is it possible to avoid sending these command/status/address bits to successfully complete a full (or even half) duplex SPI transaction?
I posted these questions on the Espressif forum (http://bbs.espressif.com/viewtopic.php?f=7&t=2727). Perhaps I may reach a wider audience here.
