I have removed MMB0, TP10 provides 3.3V ads1298R LED display normally, short circuit jP24 2-3
cs--------------------------j3.7
sclk-----------------------j3.3
mosi---------------------j3.13
miso--------------------j3.11
drdy-------------------j3.15
gnd---------------------j3.4
start-------------------j3.14
reset------------------j3.8
stm32f407 SPI sending RX always receives 0x00. Please help me analyze where the problem lies. thank you
