SPI with DMA on external pins on lyrat 4.3
Posted: Thu Jan 09, 2020 2:31 pm
SPI with DMA on external pins on lyrat 4.3 , does anyone have a code example for esp-adf / esp-idf ?
is it possible ?
in the SPI master example the pins are already used for I2c and I2S on the lyrat 4.3 can I just say re-assign the JTAG pins to SPI since I'm not using them ? UART pins are needed to program the device ! I'm using the I2S pins ( connected to Codec ) I2C pins connected to codec.
GPIO15 TDO
GPIO13 TCK
GPIO12 TDI
GPIO14 ?
Theres some 4.7k pull up / pull down resistors I'd have to take off I suppose !
is it possible ?
in the SPI master example the pins are already used for I2c and I2S on the lyrat 4.3 can I just say re-assign the JTAG pins to SPI since I'm not using them ? UART pins are needed to program the device ! I'm using the I2S pins ( connected to Codec ) I2C pins connected to codec.
GPIO15 TDO
GPIO13 TCK
GPIO12 TDI
GPIO14 ?
Theres some 4.7k pull up / pull down resistors I'd have to take off I suppose !