View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000551 | T99X171.00 SKB Eagle | HW | public | 2019-03-13 23:11 | 2019-04-02 09:55 |
| Reporter | (ALTech) SY Yoon | Assigned To | (HW) Sean Chiang | Due Date | 2019-03-15 23:59 |
| Priority | high | Severity | s2-severe | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Summary | 0000551: BT Pairing issue - Remotesolution RCU | ||||
| Description | I tried to pair with BRM-BA01 RCU. But I cannot pair it. I never pair it. I think there are 2 pairing processes when we start pairing with RCU. 1. RCU Pairing. 2. Audio Pairing. I think RCU paired correctly, but Audio pairing failed. So finally RCU unpair. It should be fixed ASAP | ||||
| Tags | No tags attached. | ||||
| Attach Tags | |||||
| User List |
(SW) Jim Chen , (SW) Kerwin Chen |
|---|
|
|
Hi Mr. Yoon, We have found that the bluetooth frequency deviation is fail (over +/- 75KHz) and this issue may casue the BT pairing not well. Also, we found that this issue is caused by the frequency deviation of crystal for BT chipset (CYW20704) over the spec. (+/-20ppm). So, we fine tune the load cap and the deviation issue can be improved by changing the cap. from 18pF to 8.2pF. I think Mr.Philip has explain the detailed to Mr.SB and you. So, please rework the load cap of BT's crystal in your side to see if the pairing issue can be fixed or not. |
|
|
Hi Sean I changed to load capacitor of BT XTAL. and test BT pairing. but, BT pairing is not work well. |
|
|
Hi SB. To change the load cap. value from 18pF to 8.2pF is to correct the deviation of Crystal of BT chipset. It will also fix the frequency deviation issue for 2.4G RF. However, as per I mentioned to Mr.Philip, the load cap. correction should be one of the cause for the BT pairing issue but not the root cause. We will work with our S/W team to see if there is any way to improve from the software side. Hi Jacky, Please update the software status if there is any finding from software side |
|
|
Hi Sean, We will update BT pairing issue in other mantis 0000533 in SW category and I think you can close this issue if it don't have any HW concerns. |
|
|
Hi Mr. Yoon and SB, The BT pairing issue will be tracked in other mantis 0000533 in SW category. Please close this issue if you don't have any concern on hardware portion. |
|
|
the issue is go to SW part |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-03-13 23:11 | (ALTech) SY Yoon | New Issue | |
| 2019-03-13 23:11 | (ALTech) SY Yoon | Status | new => assigned |
| 2019-03-13 23:11 | (ALTech) SY Yoon | Assigned To | => (SW) Jacky Chiang |
| 2019-03-13 23:12 | (ALTech) SY Yoon | Issue Monitored: (SW) Jim Chen | |
| 2019-03-13 23:12 | (ALTech) SY Yoon | Issue Monitored: (SW) Kerwin Chen | |
| 2019-03-14 19:38 | (SW) Kerwin Chen | Assigned To | (SW) Jacky Chiang => (HW) Sean Chiang |
| 2019-03-14 19:39 | (SW) Kerwin Chen | Category | SW => HW |
| 2019-03-14 21:38 | (HW) Sean Chiang | Note Added: 0001529 | |
| 2019-03-19 21:36 |
|
Note Added: 0001617 | |
| 2019-03-21 12:15 | (HW) Sean Chiang | Assigned To | (HW) Sean Chiang => (SW) Jacky Chiang |
| 2019-03-21 12:15 | (HW) Sean Chiang | Note Added: 0001658 | |
| 2019-03-29 19:47 | (SW) Jacky Chiang | Note Added: 0001776 | |
| 2019-03-29 19:47 | (SW) Jacky Chiang | Assigned To | (SW) Jacky Chiang => (HW) Sean Chiang |
| 2019-03-29 20:13 | (HW) Sean Chiang | Note Added: 0001778 | |
| 2019-04-02 09:55 |
|
Status | assigned => closed |
| 2019-04-02 09:55 |
|
Resolution | open => fixed |
| 2019-04-02 09:55 |
|
Note Added: 0001807 |
