Tool/software:
Hello:
Right now i have make a new hardware with am62a soc board.
Right now the software can not start. Can you help with the product bring-up of the new hardware
I have below test step of the hardware:
1. i have check the PMIC out power voltage . and measure the power on sequence . Compare with evm board. Sequence is the same and power voltage is the same with EVM board.
2. i have change the boot mode to UART mode. that the UART can correct connect and after power on uart port send out below message: 02000000011a0000616d3632610000000000000048534653000800000008000002a6000000000000cb39ee39c52d0469806636ff350520fcf7065cbec5cdddfea08863506c2be9f2242ff3207f919c2edcff407261f0908459139f3c153770f3024c4eae43aC
3. turn the boot mode to SD card and verify boot mode pin voltage in SOC port. then power on i can not receive any log in uart port
4. check with the SD Card port. And i Can see that the SDCD PIN is 0 when plugin the SD card and voltage is 3.3V during SD card is not plugin. and here is the voltage during power on
a) SDCD 0v
b)SDCLK have 400K hz wave there for hi:3.3 and low:0V
c) DATA0-3: 1.95V and No signal on the lane
d) CMD : have the signal during power on . and hi : 3v lo:0v
and right we using the uart to start the system the R5F can start .but the emmc can not work.
Can you help to analysis the problem with SD card. I can not see the SD card have respond with the data. Can you help to analysis the problem. thanks very much
