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paulb231
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Last seen:10 months 2 weeks ago
加入:2016-08-31 14:53
SPI主引导职业blem

Hi
The header does not appear to be recognized:
After aprox 100ms after RST:
MOSI:
0x70
0x50 (preamble)
0x00
0x00
0x50 (size 20KB)
0x0f (CRC)
0 x00(8位数据模式)
0x00

MISO:
0xc0
0xdc
0xd4
0x02 ACK - this is expected
0xc0
0x00
0xc3 ???????
0xc0
0x00

Byte 6 is neither ACK or NAK

Device:
MT_dialog
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Last seen:2 months 2 weeks ago
Staff
加入:2015-06-08 11:34
Hi paulb231,

Hi paulb231,

Even with the 0xc3 which might be garbage in the SPI MISO, i suppose that you are not able to download code on the 580, even if you get an ACK on the 6th byte. So your problem should be on the SPI communication and on the connection wires. Please terminate and shield the connections properly especially the clock connection. The spi sampler when in slave mode its very sensetive to spikes and reflections.

Thanks MT_dialog