**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 08:16

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 08:16

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Dec 15, 2020, 08:16

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Now porting #Mynewt + #RustLang to #PineCone #BL602 #RISCV

https://github.com/lupyuen/pinecone-rust-mynewt

34d6879c2798ac6f.png

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 11:25

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 11:25

Dec 15, 2020, 11:25

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Adding Board Support Package for #PineCone #BL602 to #Mynewt

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/hw/bsp/pinecone/bsp.yml

0b4c78689eb18254.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 12:42

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 12:42

Dec 15, 2020, 12:42

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Disassembled the #PineCone #BL602 HelloWorld App for reference

https://github.com/lupyuen/bl_iot_sdk/releases/download/v0.0.4/sdk_app_helloworld.S

7262fd247c3ed21c.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 13:33

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 15, 2020, 13:33

Dec 15, 2020, 13:33

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 Start Code comes from here...

https://github.com/lupyuen/bl_iot_sdk/blob/master/components/bl602/bl602/evb/src/boot/gcc/start.S

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 01:57

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 01:57

Dec 16, 2020, 01:57

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 Flash Memory Map for #Mynewt ... With my handy hex calculator

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/hw/bsp/pinecone/bsp.yml#L36-L74

60e70fe13f828b98.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 04:57

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 04:57

Dec 16, 2020, 04:57

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 Linker Script for #Mynewt

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/hw/bsp/pinecone/bsp_app.ld

d97da5b38bba49d3.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 05:23

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 05:23

Dec 16, 2020, 05:23

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Set #PineCone #BL602 as the Firmware Target for #Mynewt

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/targets/pinecone_app/target.yml

8241bc09554267e7.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 05:32

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 05:32

Dec 16, 2020, 05:32

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Building #Mynewt for #PineCone #BL602 ... Now using the right #RISCV GCC

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

e8b68de4155cddfd.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 06:10

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 06:10

Dec 16, 2020, 06:10

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#RISCV on #Mynewt depends on SiFive FE310 ... Let's break the dependency 🤔

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 08:20

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 08:20

Dec 16, 2020, 08:20

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Porting #Mynewt Context Switching to #BL602 ... CLINT = #RISCV Core Local Interrupt controller

https://github.com/apache/mynewt-core/blob/master/kernel/os/src/arch/rv32imac/ctx.s#L193

2282ff2ae2c63ab4.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 09:07

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 09:07

Dec 16, 2020, 09:07

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 looks similar to SiFive FE310 ... Porting #Mynewt from FE310 to BL602 seems straightforward

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 09:38

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 09:38

Dec 16, 2020, 09:38

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Unlike SiFive FE310, #BL602 doesn't have a Platform-Level Interrupt Controller (PLIC) ... This #RISCV code in #Mynewt needs to be fixed 🤔

https://github.com/apache/mynewt-core/blob/master/kernel/os/src/arch/rv32imac/os_arch_rv32imac.c#L214

55728f9b0a155e1b.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 10:08

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 10:08

Dec 16, 2020, 10:08

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 #Mynewt compiles OK ... Now fixing the Reset Handler

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

c4b18e924508c1c8.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 12:09

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 12:09

Dec 16, 2020, 12:09

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Now porting the missing HAL functions for #Mynewt #BL602

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

6ae164f88b23c0fe.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 12:48

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 12:48

Dec 16, 2020, 12:48

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Still porting the missing HAL functions for #Mynewt #BL602

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

27dfb80e999a9ede.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · 2020-12-16T14:14:56Z

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#BL602 #Mynewt Firmware built successfully yay! (Using stubs for HAL functions) Now inspecting the Disassembled Firmware

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

d2d8050c39bb6c7e.png

Dec 16, 2020, 14:14 · · · ·

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 14:22

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 14:22

Dec 16, 2020, 14:22

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Disassembly of #BL602 #Mynewt Firmware looks OK ... Reset Handler is at the right address ... Let's run this firmware!

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

617e6401fafc39b0.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:08

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:08

Dec 16, 2020, 20:08

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Nope OpenOCD + JTAG doesn't work for loading #Mynewt Firmware into #BL602 Flash Memory ... Let's load the #RISCV Firmware into RAM instead

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

06a28135e0c424c8.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:41

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:41

Dec 16, 2020, 20:41

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Yep OpenOCD + JTAG works OK for loading #Mynewt Firmware into #BL602 RAM!

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

93d1ef336f5c2268.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:45

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 20:45

Dec 16, 2020, 20:45

Lup Yuen Lee 李立源 @lupyuen@qoto.org

#VSCode Debugger works OK for #Mynewt Firmware on #PineCone #BL602 yay!

https://github.com/lupyuen/pinecone-rust-mynewt/blob/main/README.md

eed4a8ea11fc6b5d.png

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**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 21:15

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 21:15

Dec 16, 2020, 21:15

Lup Yuen Lee 李立源 @lupyuen@qoto.org

Now writing up ... Porting #Mynewt to #PineCone #BL602

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**caligari** @caligari@social.linux.pizza · Dec 16, 2020, 15:18

**caligari** @caligari@social.linux.pizza · Dec 16, 2020, 15:18

Dec 16, 2020, 15:18

caligari @caligari@social.linux.pizza

@lupyuen Good job! Just to document the map of interrupt sources (from BL602 reference manual) and the programmers interface to handle them:

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 16:03

**Lup Yuen Lee 李立源** @lupyuen@qoto.org · Dec 16, 2020, 16:03

Dec 16, 2020, 16:03

Lup Yuen Lee 李立源 @lupyuen@qoto.org

@caligari Cool thanks! 🙂

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