# Uploaded Code is Not Being Implemented to HiFive Rev B Controller Properly **URL:** \ **Category:** HiFive1 Rev B\ **Created:** [April 17, 2021, 7:42pm UTC](https://forums.sifive.com/t/uploaded-code-is-not-being-implemented-to-hifive-rev-b-controller-properly/4627 "2021-04-17T19:42:58Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![goodsnacks](https://avatars.discourse-cdn.com/v4/letter/g/278dde/32.png) [@goodsnacks](https://forums.sifive.com/u/goodsnacks)\ **Post date:** [April 17, 2021, 7:42pm UTC](https://forums.sifive.com/t/uploaded-code-is-not-being-implemented-to-hifive-rev-b-controller-properly/4627/1 "2021-04-17T19:42:58Z")
To whom it may concern, I am using the HiFive Rev B Controller as a main component in a Lab Course, so I have been trying to solve this issue day in and day out. I am running projects in PlatformIO with JLink and my programs are in C. My first two projects worked nice, but while I was working on my next project, I accidentally got the board into “bootloader mode” or a specific mode by accidentally pressing a series of RESET and WAKE buttons, believing that I was resetting the board. However, I should have known that this was not a good idea. I uploaded my project code into the board during this time, and it seems that the board is reading locations wrongly and my JLink won’t even recognize the FE310. I have pasted below the readings of the upload. So far, no matter what, I cannot get my controller to recognize my GPIO assignments for this project and only remembers the last pin’s settings. I also realized that if I upload my code (which is supposed to simulate a simple red, yellow, and green LED annunciator), and then unplug my HiFive Board, it will reset for about 1-2 seconds and illuminate my LED’s, but then they turn off and the board refuses to do anything. My previous projects will not work now. I wish to reset my HiFive Rev B Board to it’s factory default state. Is this possible and can anyone assist me with this. I would need decently detailed steps, since this is my first experience with programming and controllers. I am using Windows 10, Visual Studio Code, PlatformIO, with a HiFive Rev B (FE310) Board. **Terminal After Upload** Executing task in folder Lab3 Redo: C:\Users\Kyle.platformio\penv\Scripts\platformio.exe run --target upload --environment hifive1-revb Processing hifive1-revb (platform: sifive; board: hifive1-revb; framework: freedom-e-sdk) * * * Verbose mode can be enabled via `-v, --verbose` option CONFIGURATION: [https://docs.platformio.org/page/boards/sifive/hifive1-revb.html](https://docs.platformio.org/page/boards/sifive/hifive1-revb.html) PLATFORM: SiFive (4.0.0) \> HiFive1 Rev B HARDWARE: FE310 320MHz, 16KB RAM, 16MB Flash DEBUG: Current (jlink) On-board (jlink, renode) PACKAGES: - framework-freedom-e-sdk 2.20050003.200818 (2005.0.3) - tool-jlink 1.68801.0 (6.88.1) - tool-openocd-riscv 2.1000.20190927 (10.0) - toolchain-riscv 1.80300.190927 (8.3.0) LDF: Library Dependency Finder → [http://bit.ly/configure-pio-ldf](http://bit.ly/configure-pio-ldf) LDF Modes: Finder ~ chain, Compatibility ~ soft Found 0 compatible libraries Scanning dependencies… No dependencies Building in release mode Checking size .pio\build\hifive1-revb\firmware.elf Advanced Memory Usage is available via “PlatformIO Home \> Project Inspect” RAM: [===] 27.2% (used 4460 bytes from 16384 bytes) Flash: [] 0.1% (used 11150 bytes from 16777216 bytes) Configuring upload protocol… AVAILABLE: jlink CURRENT: upload\_protocol = jlink Uploading .pio\build\hifive1-revb\firmware.hex SEGGER J-Link Commander V6.88b (Compiled Nov 27 2020 15:45:43) DLL version V6.88b, compiled Nov 27 2020 15:44:11 J-Link Command File read successfully. Processing script file… J-Link connection not established yet but required for command. Connecting to J-Link via USB…O.K. Firmware: J-Link OB-K22-SiFive compiled Mar 3 2021 14:13:05 Hardware version: V1.00 S/N: 979014988 VTref=3.300V Target connection not established yet but required for command. Device “FE310” selected. Connecting to target via JTAG ConfigTargetSettings() start ConfigTargetSettings() end TotalIRLen = 5, IRPrint = 0x01 JTAG chain detection found 1 devices: #0 Id: 0x20000913, IRLen: 05, Unknown device Debug architecture: RISC-V debug: 0.13 AddrBits: 7 DataBits: 32 IdleClks: 5 Memory access: Via system bus: No Via ProgBuf: Yes (16 ProgBuf entries) DataBuf: 1 entries autoexec[0] implemented: Yes Detected: RV32 core CSR access via abs. commands: No Temp. halted CPU for NumHWBP detection HW instruction/data BPs: 8 Support set/clr BPs while running: No HW data BPs trigger before execution of inst RISC-V identified. pc = 20010D46 sp = 80000940 ra = 20010D24 gp = 80000C88 tp = 800004D0 fp = 00000800 t0 = 0200BFF8 t1 = 05ADFECC t2 = 05AE0849 t3 = 00000000 t4 = 00000000 t5 = 00000000 t6 = 00000000 a0 = 000000C8 a1 = 00000001 a2 = 20010314 a3 = FFFFFFFF a4 = 00200000 a5 = 00000000 a6 = 0000001F a7 = 00000000 s1 = 02000080 s2 = 02000080 s3 = 00000000 s4 = 00000000 s5 = 00000000 s6 = 00000000 s7 = 00000000 s8 = 00000000 s9 = 00000000 s10 = 00000000 s11 = 00000000 Downloading file [.pio\build\hifive1-revb\firmware.hex]… Comparing flash [100%] Done. J-Link: Flash download: Bank 0 @ 0x20000000: Skipped. Contents already match O.K. Reset delay: 0 ms Reset type Normal: Resets core & peripherals using bit in debug register. RISC-V: Performing reset via Script processing completed. ==================================================================== [SUCCESS] Took 5.63 seconds ==================================================================== Terminal will be reused by tasks, press any key to close it. ---
**Author:** ![RalphF](https://avatars.discourse-cdn.com/v4/letter/r/d26b3c/32.png) [@RalphF](https://forums.sifive.com/u/RalphF)\ **Post date:** [April 19, 2021, 3:26pm UTC](https://forums.sifive.com/t/uploaded-code-is-not-being-implemented-to-hifive-rev-b-controller-properly/4627/2 "2021-04-19T15:26:26Z")
Hi Kyle, There is a recovery procedure described in Section 9.1 of the Getting Started Guide: - [https://sifive.cdn.prismic.io/sifive/cf239fd0-ae4f-4fd8-a944-fdafb5018153\_hifive1b-getting-started-guide\_v1.2.pdf](https://sifive.cdn.prismic.io/sifive/cf239fd0-ae4f-4fd8-a944-fdafb5018153_hifive1b-getting-started-guide_v1.2.pdf) From what you describe, we think if you program a working hex file to the board this should make your board operational again. Please let us know if it resolves the problem. Regards, Ralph ---
**Author:** ![goodsnacks](https://avatars.discourse-cdn.com/v4/letter/g/278dde/32.png) [@goodsnacks](https://forums.sifive.com/u/goodsnacks)\ **Post date:** [April 19, 2021, 6:08pm UTC](https://forums.sifive.com/t/uploaded-code-is-not-being-implemented-to-hifive-rev-b-controller-properly/4627/3 "2021-04-19T18:08:34Z")
Thank you for your time and assistance! I understand everything up to when I am in boot mode. I am not really quite sure what you mean by “program a working hex file to the board”, are you able to provide some details on how I may do this or what I need to learn to be able to do this? ---
**Author:** ![RalphF](https://avatars.discourse-cdn.com/v4/letter/r/d26b3c/32.png) [@RalphF](https://forums.sifive.com/u/RalphF)\ **Post date:** [April 19, 2021, 8:54pm UTC](https://forums.sifive.com/t/uploaded-code-is-not-being-implemented-to-hifive-rev-b-controller-properly/4627/4 "2021-04-19T20:54:27Z")
Hi Kyle, Sorry - we just meant to program it with the “drag and drop” capability. With the LED blinking red, do you see the board mounted in Windows as a drive? If so, you can just copy a working hex file (a previously built program that you know works) to the drive and it will program to the board. Unfortunately I can’t attach a hex file in the forums. I see you aren’t using FreedomStudio, but if you were, a canned example like SiFiveWelcome should work. This prints a welcome message to the serial port and will rotate colors on the LED. Regards, Ralph