microwire protocol

Here we discuss the JTAG on platforms. CPU,CPLD etc.
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merkin
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microwire protocol

Post by merkin »

hi, does usbjtagnt support microwire bus protocol for read/write microwire eeprom?
http://www.interfacebus.com/Microwire_B ... ption.html
usbbdm
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Post by usbbdm »

merkin wrote:hi, does usbjtagnt support microwire bus protocol for read/write microwire eeprom?
http://www.interfacebus.com/Microwire_B ... ption.html
I think EEPROM in general is working. Do you have specific EEPROM to try?
merkin
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Post by merkin »

for eeprom, i see SPI and I2C protocol support, but not MICROWIRE.

here is specific eeprom:
http://ww1.microchip.com/downloads/en/D ... oc5140.pdf

MICROWIRE protocol is subset of SPI, but not the same protocol (data latch is different).
usbbdm
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Post by usbbdm »

I see. I do not think USB JTAG NT can support it. The slowest clock is 6M. But I will keep this in mind.
usbbdm
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Post by usbbdm »

Microwire might be supported in future project.
usbbdm
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Re: microwire protocol

Post by usbbdm »

u-Link NT can support microwire EEPROM 93CXX. https://youtu.be/MPoyYrS7eT4
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