henry gore

MCF54415 SPI FLASH CAN NOT BOOTLOAD OCCASIONALLY WHEN POWER ON!

Discussion created by henry gore on Jul 18, 2012
Latest reply on Aug 24, 2012 by mike meeker

when my mcf54415 board is power on, spi flash sometimes can not bootload correctlly,and then i push the manual reset key of the sp706s IC(external watchdog is bypassed),spi flash can bootload correctlly.From analysizing the waveform,i find that mcf54415 reads about 30~50 bytes from spi flash and then stops when power on. i wants to know what's

wrong,hardware circuit or uboot program? thahks

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