MSP432E401Y: MSP432E401Y + microSD

We have a custom 401 board with an SD card. In the sys config gui, add the SPI and an SD using it. There is example code for a FAT file system that will sit on it. For the Launchpad dev board, you can get a piggy back board with an LCD and an SD slot - I seem to remember there was something not entirely straight forward about the SPI connections.

Hi,

 Just to add on top of what Jim has provided. 

albgarc2014 said:

1-) The MSP432E401 does not have an SD interface? 

No, MSP432E does not have a dedicated SD interface. 

albgarc2014 said:

2-) Does the MSP432E401 have an SPI interface that allows me to use the micro SD? I am confused about this because some information shows the MSP432E401 with SPI interface and other times it does not, Please see the attached images. 

It is called QSSI in MSP432E where it can operate as a legacy SPI module. 

albgarc2014 said:

3-) At firmware level are there pettitfs libraries or similar to handle (in an easy way) the micro SD with SPI? 

This example may help. 

Hi,

Sorry, the custom board is copyright of my client.

AN SD interface is just a 3 pin SPI connection. If you add it to a Launchpad demo board sys config (note, checked Use FatFS ), it adds:

SD1.useFatFS = true;
SD1.$name = "CONFIG_SDFatFS_0";
SD1.slaveSelect.$name = "CONFIG_GPIO_SD_SEL";
SD1.slaveSelect.gpioPin.$assign = "PP4";

SD1.spiInstance = SPI1;
SPI1.$name = "CONFIG_SPI_SD";
SPI1.spi.$assign = "SSI3";
SPI1.spi.sclkPin.$assign = "PQ0";
SPI1.spi.misoPin.$assign = "PQ3";
SPI1.spi.mosiPin.$assign = "PQ2";

The interface is really just SPI - sclk, miso, mosi, plus GPIO PP4 as device select.

Then, check out the Fatsd sample code.

Also, FTP will work on it too (posted somewhere on this forum)