Search found 4 matches

by FCam1
Thu Nov 30, 2017 6:49 pm
Forum: Maple & Maple mini etc
Topic: SPI Slave full duplex with DMA
Replies: 9
Views: 633

Re: SPI Slave full duplex with DMA

I come back with good news ! I succeeded to communicate in Full Duplex with a Maple mini as slave. The configuration of the SPI was not easy but after hours it works ! The code of initialization of the SPI have to be cleaned in order to have an easier way to do set up this configuration. I created a...
by FCam1
Thu Nov 09, 2017 4:09 pm
Forum: Maple & Maple mini etc
Topic: SPI Slave full duplex with DMA
Replies: 9
Views: 633

Re: SPI Slave full duplex with DMA

Hi, Yes so to be more precise, I want to implement this dmaTransfer on the mini as a slave . So whenever the master (R-PI) do a known size spi transfer (generating the CLK), the mini records incoming bytes in RX dma buffer, and simultaneously transfers the TX dma buffer (that has already been filled...
by FCam1
Wed Nov 08, 2017 6:34 pm
Forum: Maple & Maple mini etc
Topic: SPI Slave full duplex with DMA
Replies: 9
Views: 633

SPI Slave full duplex with DMA

Hello, I'm working on a robotic project that implies fast bidirectional data exchange between a maple mini and a raspberry pi 3. I would like to use DMA on maple mini side to act as SPI full duplex slave (dma rx + dma tx). I found this example on this post ( https://github.com/stevstrong/Audio-sampl...
by FCam1
Wed Nov 08, 2017 6:11 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: New member from France
Replies: 2
Views: 72

New member from France

Hello, I'm a young engeneer working in a robotic laboratory. I work on a robot prototype and I have to design the mechanical part and the electronical part. Currently I am working on the electronic part and I use a maple mini, a raspberry pi 3 and various developpement boards. I' not an expert in pr...