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Altera_Forum's avatar
Altera_Forum
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12 years ago

SPI slave code

Hi, I'm using the QSYS SPI module as a slave. The SPI slave is supposed to receive sequences of bytes/characters. In order to make this happen, I'm using some SW code that reads the stat...
Altera_Forum's avatar
Altera_Forum
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12 years ago

The Altera spi core has no rx buffer; data would be overwritten if you don't read it before the next byte arrives.

Check also the receive overrun (ROE) bit in status register.