Recent Posts
31
Other - Installation/Removal / Re: I am at a stand still with Rockboxing my HIFI Walker, I've tried everything...
« Last post by thebluegoose on July 10, 2025, 07:33:45 PM »WOW, IT LITERALLY WAS THE NAMING ISSUE!!! 
You hit the nail on the head, dconrad!
I hopped on and was like, "well, that's so simple, but I guess I'll try it..."
Sure enough, it did the trick!
Hahaha! I can't believe it was such a simple, silly mistake. I think I was confused because in the wiki it says to name it "update.upt".
Thank you much!!
You hit the nail on the head, dconrad!
I hopped on and was like, "well, that's so simple, but I guess I'll try it..."
Sure enough, it did the trick!
Hahaha! I can't believe it was such a simple, silly mistake. I think I was confused because in the wiki it says to name it "update.upt".
Thank you much!!
32
New Ports / Re: Tapir Player
« Last post by speachy on July 10, 2025, 01:40:30 PM »Arm Cortex-M33 STAR-MC1 core @ up to 240MHz
512KB SRAM, 16MB PSRAM
BT Classic + BLE
Open development materials / SDK
The SF32LB52J has a mono audio DAC, but we could add, say, a TLV320DAC3100 with a 3.5mm jack.
Another slight downside is that USB support is only 'full speed' (12 Mbit/s)... maybe we could add a USB-to-SD card bridge chip.
The CPU core is a little slower than I'd like to see but it'll easily handle any reasonable audio format. The main strike against it is the need for PSRAM, however the SoC supports running it at 8bit 144MHz DDR, which is a lot faster than one typically sees -- the PSRAM is on-package too! With respect to the slow USB interface, as long as the SD card is removeable, it's not a big deal in practice -- and adding a USB2<->SD bridge wil not be cost (both in $$ and footprint) effective.
Also, the SG32LB52x reference manual shows the DAC can drive 16-bit stereo output (section 11.3.4.2) to either the internal codec or via I2S, at a 48KHz maximum sample rate. There's conflicting language about the ability to drive 24bit stereo signals; playing back two 24-bit mono signals is supported, though you may have to handle the data buffers for each independently? The I2S peripheral supports stereo 24-bit, though it's not immediately clear if it can be handed data via DMA directly or has to go through the "AudPRC" block.
So in short, this looks like it would work for Rockbox.
Oh, with regards to the SDK; it looks like it has a complete set of CMSIS headers and the misc driver (etc) code will be a good reference (and may even be usable as-is..)
I wonder if the bluetooth stack is available in source form...
EDIT: It uses a modified version the Zephyr host stack + profiles in source form, but still uses a binary blob (presumably for the controller stack). A2DP is there but surprisingly, no AVRCP? (I wonder how hard it would be to drag this as-is into rockbox, to use with the native ErosQ port...)
33
New Ports / Tapir Player
« Last post by davidzweig on July 10, 2025, 12:14:39 PM »Hello. I used to use Rockbox a lot on a Sansa Clip. For some time, I've been working on a design for a kind of remote that connects with an Android smartphone over a BLE connection to allow control of a special audio player for studying languages. It would be an extension of the Language Reactor project. We're a few developers who usually make web software, but we're working with a couple of other companies for the electronic and mechanical design/manufacture.
I revisited the project this year. There's this SoC, planned for use in the upcoming Pebble Core Time 2: https://www.cnx-software.com/2025/05/14/sifli-sf32lb52j-big-little-arm-cortex-m33-bluetooth-mcu-powers-the-core-time-2-smartwatch/
Some interesting features:
Arm Cortex-M33 STAR-MC1 core @ up to 240MHz
512KB SRAM, 16MB PSRAM
BT Classic + BLE
Open development materials / SDK
Smartwatch-format IPS displays are something like $1.50–$1.80.
The SF32LB52J has a mono audio DAC, but we could add, say, a TLV320DAC3100 with a 3.5mm jack.
Another slight downside is that USB support is only 'full speed' (12 Mbit/s)... maybe we could add a USB-to-SD card bridge chip.
Our previous remote design, based on the nRF52, is on the left, and the new concept is on the right. 12 buttons on the front, individually lit with color LEDs, with some additional edge buttons:
https://postimg.cc/d7QvgM1y
We're starting schematic design with the SiFli chip and, if everything goes smoothly, looking at manufacturing a device later in the year, with a retail price around 25–30 EUR. The schematic will be published online.
There is quite a nice-looking third-party smartwatch-format development board: https://item.taobao.com/item.htm?id=938017721882 . I ordered 10 units via Superbuy purchase agent last night to Bulgaria. I can forward a couple within Europe if someone is interested.
Anyway, I thought I would check in here to see if there were any comments on the suitability of the hardware for Rockbox.
I revisited the project this year. There's this SoC, planned for use in the upcoming Pebble Core Time 2: https://www.cnx-software.com/2025/05/14/sifli-sf32lb52j-big-little-arm-cortex-m33-bluetooth-mcu-powers-the-core-time-2-smartwatch/
Some interesting features:
Arm Cortex-M33 STAR-MC1 core @ up to 240MHz
512KB SRAM, 16MB PSRAM
BT Classic + BLE
Open development materials / SDK
Smartwatch-format IPS displays are something like $1.50–$1.80.
The SF32LB52J has a mono audio DAC, but we could add, say, a TLV320DAC3100 with a 3.5mm jack.
Another slight downside is that USB support is only 'full speed' (12 Mbit/s)... maybe we could add a USB-to-SD card bridge chip.
Our previous remote design, based on the nRF52, is on the left, and the new concept is on the right. 12 buttons on the front, individually lit with color LEDs, with some additional edge buttons:
https://postimg.cc/d7QvgM1y
We're starting schematic design with the SiFli chip and, if everything goes smoothly, looking at manufacturing a device later in the year, with a retail price around 25–30 EUR. The schematic will be published online.
There is quite a nice-looking third-party smartwatch-format development board: https://item.taobao.com/item.htm?id=938017721882 . I ordered 10 units via Superbuy purchase agent last night to Bulgaria. I can forward a couple within Europe if someone is interested.
Anyway, I thought I would check in here to see if there were any comments on the suitability of the hardware for Rockbox.
34
Hardware / Re: IPod 7th Gen iFlash: Can't load rockbox.ipod: File not found
« Last post by rockbox_dev123 on July 10, 2025, 09:42:20 AM »The adapter is unlikely to be causing corruption. They only passively reroute the connections of the pins between the form factor.
It's 99% the SD card you have.
If you want SD I can guarantee that this card works perfectly with an iFlash Solo on both Classic and Video:
SanDisk Extreme PRO® SDHC™ And SDXC™ UHS-I Card - 512GB
SKU: SDSDXXD-512G-GN4IN
If you want micro SD then I can guarantee this card works perfectly with an iFlash Quad on an iPod Classic:
Samsung EVO Plus 160MBs MicroSD Memory Card - 512GB
Save yourself the hassle and replace the card.
It's 99% the SD card you have.
If you want SD I can guarantee that this card works perfectly with an iFlash Solo on both Classic and Video:
SanDisk Extreme PRO® SDHC™ And SDXC™ UHS-I Card - 512GB
SKU: SDSDXXD-512G-GN4IN
If you want micro SD then I can guarantee this card works perfectly with an iFlash Quad on an iPod Classic:
Samsung EVO Plus 160MBs MicroSD Memory Card - 512GB
Save yourself the hassle and replace the card.
35
Other - Installation/Removal / Re: I am at a stand still with Rockboxing my HIFI Walker, I've tried everything...
« Last post by dconrad on July 10, 2025, 08:21:20 AM »I'm sorry you're having so much trouble, but we'll get it working. Frankly, I'm really surprised you found someone at a tech support place who would help you with this!
I'll go through the links and see if any are broken, and I might revamp the wiki page again to see if I can make it more understandable.
In any case, you're doing everything right as far as I can see. You've got the right update file and everything. One question, do you have "Show File Extensions" turned on in your file browser? If that's turned off, then renaming the file to "update.upt" will actually name it to "update.upt.upt", which of course won't work.
I'll go through the links and see if any are broken, and I might revamp the wiki page again to see if I can make it more understandable.
In any case, you're doing everything right as far as I can see. You've got the right update file and everything. One question, do you have "Show File Extensions" turned on in your file browser? If that's turned off, then renaming the file to "update.upt" will actually name it to "update.upt.upt", which of course won't work.
36
Hardware / Re: IPod 7th Gen iFlash: Can't load rockbox.ipod: File not found
« Last post by Frankenpod on July 10, 2025, 05:15:11 AM »So you have the iFlash adaptor, and then an SD-to-micro-SD adaptor within that?
Seems to me that having a second level of adaptor might increase the chances of compatibility errors causing corruption. Can only say I don't get those corruption problems with iFlashed ipods (with the latest versions of RB - did get issues with much earlier versions), but none of them use an SD-to-micro-SD adaptor, they either have full size SD cards or the quad micro-SD iFlash.
Seems to me that having a second level of adaptor might increase the chances of compatibility errors causing corruption. Can only say I don't get those corruption problems with iFlashed ipods (with the latest versions of RB - did get issues with much earlier versions), but none of them use an SD-to-micro-SD adaptor, they either have full size SD cards or the quad micro-SD iFlash.
37
Other - Installation/Removal / Re: I am at a stand still with Rockboxing my HIFI Walker, I've tried everything...
« Last post by thebluegoose on July 10, 2025, 12:06:03 AM »For even further clarification,
When adding the Rockbox and bootloader (renamed to update.upt) onto my microsd, I have been attempting a firmware update but am met with Upgrade Failed, No Upgrade File Found
When adding the Rockbox and bootloader (renamed to update.upt) onto my microsd, I have been attempting a firmware update but am met with Upgrade Failed, No Upgrade File Found
38
Hardware / Re: Is there a way to enable the "Battery" option in settings for the Sansa E200 v1?
« Last post by djrz on July 09, 2025, 11:37:05 PM »I ran the battery benchmark on battery holders for 3 AAA and 3 AA sets of batteries.
3 AAA 800 mAh Eneloops: Ran for ~29 hours.
3 AA 1900 mAh Ladda: Ran for ~64 hours.
Theme: DFKT_Minimum
Earphones: Sony MDREX110AP In-ear Headphones
Tracks: Antics by Interpol played on repeat
Codec: Musepack q7
Volume -40db
If anyone is interested I can link to the battery benchmark text files.
3 AAA 800 mAh Eneloops: Ran for ~29 hours.
3 AA 1900 mAh Ladda: Ran for ~64 hours.
Theme: DFKT_Minimum
Earphones: Sony MDREX110AP In-ear Headphones
Tracks: Antics by Interpol played on repeat
Codec: Musepack q7
Volume -40db
If anyone is interested I can link to the battery benchmark text files.
39
Other - Installation/Removal / Re: I am at a stand still with Rockboxing my HIFI Walker, I've tried everything...
« Last post by thebluegoose on July 09, 2025, 11:21:43 PM »I'll add this for clarification:
I followed the Manual Native Port Wiki, [here](https://www.rockbox.org/wiki/AIGOErosQK)
I determined my Hifi Walker has a V2.0 firmware so I installed this update file, [here](https://download.rockbox.org/bootloader/aigo/native/erosqnative-hw4-erosq_2024.upt)
Then moved it to my microsd (a Samsung 512gb)
My SD card has been formatted to a FAT32
Both the extracted Rockbox and bootloader (titled: erosqnative-hw4-erosq_2024) are present on the microSD
--
I am getting stuck at Step 2 ("Place the bootloader update.upt file on the SDcard")
Is the bootloader file I added already the same as the "update.upt" mentioned? If so, do I just need to rename it to "update.upt"?
I followed the Manual Native Port Wiki, [here](https://www.rockbox.org/wiki/AIGOErosQK)
I determined my Hifi Walker has a V2.0 firmware so I installed this update file, [here](https://download.rockbox.org/bootloader/aigo/native/erosqnative-hw4-erosq_2024.upt)
Then moved it to my microsd (a Samsung 512gb)
My SD card has been formatted to a FAT32
Both the extracted Rockbox and bootloader (titled: erosqnative-hw4-erosq_2024) are present on the microSD
--
I am getting stuck at Step 2 ("Place the bootloader update.upt file on the SDcard")
Is the bootloader file I added already the same as the "update.upt" mentioned? If so, do I just need to rename it to "update.upt"?
40
Hardware / IPod 7th Gen iFlash: Can't load rockbox.ipod: File not found
« Last post by ktw02 on July 09, 2025, 10:03:09 PM »Hi! New rockbox user here, hope this is the right section of the forum.
I have an iPod 7th Gen (160GB, thin back, I think the 2014 model?) flash modded with an iFlash Solo, "2000mAh" square battery and a brand new 512GB TeamGroup PRO+ microsd card in an adapter. I've been able to get the latest rockbox dev builds and daily builds installed from Linux via the rockbox utility, but every few weeks of use the iPod can't read the database, and then when I try rebooting, it fails to boot and gets stuck in the bootloader with a "Can't load rockbox.ipod: file not found" error.
On the first failure I also had some issues with the SD card getting bumped by the battery and removing itself from the slot, but I glued everything down and the issue keeps happening.
Fight-Fake-Flash says the microsd is legit, so it's not that either.
It doesn't seem to be correlated with low battery, it has happened with both the battery at 90% and at 15%.
When I remove the microsd card from the iPod and put it into my computer, FSCK fixes some corruption with an inode and then the FAT32 partition mounts. All of the files seem intact, except for rockbox.ipod, which is missing. I'm able to copy rockbox.ipod back in, and it loads again in the iPod, and everything's back to normal for another 2-3 weeks.
Any ideas on a fix?
Also, is there any way I can use rockbox with the write protect switch set on my microsd adapter, as a workaround?
I still have the old HDD, it just doesn't fit in the case alongside the oversize battery. I will be testing that this week.
I'd be happy to mail this iPod to a dev for debugging as well. I live in Canada.
I have an iPod 7th Gen (160GB, thin back, I think the 2014 model?) flash modded with an iFlash Solo, "2000mAh" square battery and a brand new 512GB TeamGroup PRO+ microsd card in an adapter. I've been able to get the latest rockbox dev builds and daily builds installed from Linux via the rockbox utility, but every few weeks of use the iPod can't read the database, and then when I try rebooting, it fails to boot and gets stuck in the bootloader with a "Can't load rockbox.ipod: file not found" error.
On the first failure I also had some issues with the SD card getting bumped by the battery and removing itself from the slot, but I glued everything down and the issue keeps happening.
Fight-Fake-Flash says the microsd is legit, so it's not that either.
It doesn't seem to be correlated with low battery, it has happened with both the battery at 90% and at 15%.
When I remove the microsd card from the iPod and put it into my computer, FSCK fixes some corruption with an inode and then the FAT32 partition mounts. All of the files seem intact, except for rockbox.ipod, which is missing. I'm able to copy rockbox.ipod back in, and it loads again in the iPod, and everything's back to normal for another 2-3 weeks.
Any ideas on a fix?
Also, is there any way I can use rockbox with the write protect switch set on my microsd adapter, as a workaround?
I still have the old HDD, it just doesn't fit in the case alongside the oversize battery. I will be testing that this week.
I'd be happy to mail this iPod to a dev for debugging as well. I live in Canada.