72 lines
4.6 KiB
Plaintext
72 lines
4.6 KiB
Plaintext
[video member=miotatsu stream_platform=twitch project=riscy title="Studying the OTP" vod_platform=youtube id=WRygxZ85z8c annotator=Miblo]
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[0:08][Recap with the determination to follow Megan's advice[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434] to print out the entire OTP Contents][:research]
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[2:13][Enable print_instructions() to print the entire OTP Contents[ref
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site="SiFive Developers"
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page="SiFive HiFive1 Getting Started Guide"
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url=https://static.dev.sifive.com/dev-kits/hifive1/hifive1-getting-started-v1.0.2.pdf]]
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[8:21][:Run our program to see how our OTP Contents compares with the Default OTP Contents table[ref
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site="SiFive Developers"
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page="SiFive HiFive1 Getting Started Guide"
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url=https://static.dev.sifive.com/dev-kits/hifive1/hifive1-getting-started-v1.0.2.pdf]]
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[12:00][Make print_instructions() print the OTP start, and from the board identifier to the OTP end]
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[13:32][:Run our program to see our incorrectly read output, consider that our board is running too fast and report our findings[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434]]
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[19:13][Scan the documentation for OTP information]
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[21:10][Read about One-Time Programmable (OTP) Memory in the Platform Reference Manual[ref
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site="SiFive Developers"
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page="Platform Reference Manual"
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url=https://www.sifive.com/documentation/freedom-soc/freedom-e300-platform-reference-manual/] and the E3 Coreplex Manual[ref
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site="SiFive Developers"
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page="E3 Coreplex Manual"
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url=https://static.dev.sifive.com/pdfjs/web/viewer.html?file=https://static.dev.sifive.com/SiFive-E3-Coreplex-v1.2.pdf]][:research]
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[27:06][Read about the IOREF Jumper in the Getting Started Guide[ref
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site="SiFive Developers"
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page="SiFive HiFive1 Getting Started Guide"
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url=https://static.dev.sifive.com/dev-kits/hifive1/hifive1-getting-started-v1.0.2.pdf]][:hardware :research]
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[29:20][Continue reading about the OTP[ref
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site="SiFive Developers"
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page="Platform Reference Manual"
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url=https://www.sifive.com/documentation/freedom-soc/freedom-e300-platform-reference-manual/]][:research]
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[32:30][Consult Megan's reply, suggesting to try the led_fade demo[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434]]
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[34:28][Read the remaining documentation on the OTP's Programmed-I/O lock register and Programmed-I/O Sequencing[ref
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site="SiFive Developers"
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page="Platform Reference Manual"
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url=https://www.sifive.com/documentation/freedom-soc/freedom-e300-platform-reference-manual/]][:research]
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[41:35][Try Megan's suggestion, to use the led_fade demo as a basis for printing the OTP Contents[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434]]
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[45:51][:Run our program to see some reasonable values, and compare them with the Default OTP Contents table[ref
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site="SiFive Developers"
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page="SiFive HiFive1 Getting Started Guide"
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url=https://static.dev.sifive.com/dev-kits/hifive1/hifive1-getting-started-v1.0.2.pdf]]
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[47:22][Discover when our board was burned, post this information on the forums[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434] and note that the OTP needs to be read at 16MHz or while using the clock divider]
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[49:11][Continue to compare our values with the Default OTP Contents table[ref
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site="SiFive Developers"
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page="SiFive HiFive1 Getting Started Guide"
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url=https://static.dev.sifive.com/dev-kits/hifive1/hifive1-getting-started-v1.0.2.pdf] and post our complete OTP Contents[ref
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site="SiFive Forums"
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page="Lots of Questions… (RISCY BUSINESS Day 21)"
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url=https://forums.sifive.com/t/lots-of-questions-riscy-business-day-21/434]]
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[55:04][OTP read sequence[ref
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site="SiFive Developers"
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page="Platform Reference Manual"
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url=https://www.sifive.com/documentation/freedom-soc/freedom-e300-platform-reference-manual/]][:blackboard :research]
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[1:00:07][OTP lock sequence[ref
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site="SiFive Developers"
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page="Platform Reference Manual"
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url=https://www.sifive.com/documentation/freedom-soc/freedom-e300-platform-reference-manual/]][:blackboard :research]
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[1:04:07][That's everything]
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[/video]
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