Re: Exploring the SPI Master interface
Posted: Wed Mar 18, 2015 1:10 pm
Code: Select all
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, FUNC_GPIO12);//GPIO12 - HSPIQ MISO, not using it for MISO but as LCD reset
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode GPIO13 - HSPID MOSI
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode GPIO14 - CLK
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode GPIO15 - CS
Are you sure this is correct Ex PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode GPIO13 - HSPID MOSI could this be the CLK pin and not the MOSI pin?