Hello all, I’m experimenting with mynewt for several weeks now and I’m
especially impressed by the statistics, logging and image update functionality.
I’m having problems with getting all the statistics using newtmgr via BLE.
I took bleprph as base, added ADC and enabled several stats, logs and so on.
To reduce flash size I had to switch off debug and reduce the logging.
When I started the program I got an Assert-reboot-loop.
The target board is a bbc microbit.
This seems to be cause of the error:
ble_att_svr_entry_mem = malloc(
OS_MEMPOOL_BYTES(ble_hs_max_attrs, sizeof (struct ble_att_svr_entry)));
if (ble_att_svr_entry_mem == NULL) {
rc = BLE_HS_ENOMEM;
goto err;
}
I tweaked these four config values to fix the crash-loop.
BLE_ACL_BUF_COUNT: 4 # was 4
BLE_ACL_BUF_SIZE: 128 # was 255
MSYS_1_BLOCK_COUNT: 4 # was 12
MSYS_1_BLOCK_SIZE: 292 # was 292
The program boots now, I can see and connect to the BLE services and all this
is fine.
If I use newtmgr via ble transport to read the statistics, some of them are
responding, others return just Error: 2.
mpstat and taskstat also don’t work.
But „image list“ is working, I could even upload a new image.
My question is:
What are the best config settings to reduce ram usage, so that an app runs in
16 kb with least impact on functionality?
Some hints to reduce flash size would also be appreciated :-)
newtmgr -c ble0b stat list
stat groups:
ble_att
ble_gap
ble_gattc
ble_gatts
ble_hs
ble_l2cap
ble_ll
ble_ll_conn
ble_phy
stat
newtmgr -c ble0b stat ble_att
Error: 2
newtmgr -c ble0b stat ble_gap
Error: 2
newtmgr -c ble0b stat ble_gattc
Error: 2
newtmgr -c ble0b stat ble_gatts
stat group: ble_gatts
34 chr_def_reads
8 chr_val_reads
22 chr_val_writes
17 chrs
0 dsc_reads
46 dsc_writes
5 dscs
183 svc_def_reads
0 svc_inc_reads
6 svcs
newtmgr -c ble0b stat ble_hs
stat group: ble_hs
24 conn_create
23 conn_delete
107 hci_cmd
319 hci_event
0 hci_invalid_ack
0 hci_timeout
1 hci_unknown_event
0 reset
1 sync
newtmgr -c ble0b stat ble_l2cap
stat group: ble_l2cap
75 chan_create
72 chan_delete
0 proc_timeout
1 sig_rx
0 sig_tx
0 sm_rx
0 sm_tx
0 update_fail
0 update_init
0 update_rx
newtmgr -c ble0b stat ble_ll
Error: 2
newtmgr -c ble0b stat ble_ll_conn
Error: 2
newtmgr -c ble0b stat ble_phy
stat group: ble_phy
37138 phy_isrs
0 radio_state_errs
61 rx_aborts
6 rx_crc_err
0 rx_hw_err
0 rx_late
3210 rx_starts
3143 rx_valid
650425 tx_bytes
0 tx_fail
30779 tx_good
0 tx_hw_err
1 tx_late
newtmgr -c ble0b mpstat
Error: 2
newtmgr -c ble0b taskstat
Error: 2
newtmgr -c ble0b image list
Images:
slot=0
version: 0.4.4
bootable: true
flags: active confirmed
hash: 4f940c21db9af70698b4f07b6c89e1694022935da5cddd7f1e75f77d2b69e9c4
Split status: N/A (0)
===================
This is my configuration:
MacBook with blehci running on microbit, connected via adafruit FT242H.
blehci is from master
blehostd from
repository.blehostd:
type: github
vers: 0-latest
user: runtimeco
repo: blehostd
newtmgr conn show ble0c
Connection profiles:
ble0b: type=ble,
connstring='own_addr_type=random,peer_addr_type=public,peer_addr=0B:0A:0A:0A:0A:0A,bhd_path=blehostd.elf,ctlr_path=/dev/cu.usbserial-142'
bleprph was taken from branch mynewt_1_0_0_rc1_tag, but same results with
current master
pkg.deps:
- "@apache-mynewt-core/boot/split"
- "@apache-mynewt-core/kernel/os"
- "@apache-mynewt-core/mgmt/imgmgr"
- "@apache-mynewt-core/mgmt/newtmgr"
- "@apache-mynewt-core/mgmt/newtmgr/transport/ble"
- "@apache-mynewt-core/net/nimble/controller"
- "@apache-mynewt-core/net/nimble/host"
- "@apache-mynewt-core/net/nimble/host/services/ans"
- "@apache-mynewt-core/net/nimble/host/services/gap"
- "@apache-mynewt-core/net/nimble/host/services/gatt"
- "@apache-mynewt-core/net/nimble/host/store/ram"
- "@apache-mynewt-core/net/nimble/transport/ram"
- "@apache-mynewt-core/sys/console/full"
- "@apache-mynewt-core/sys/shell"
- "@apache-mynewt-core/sys/log/full"
- "@apache-mynewt-core/sys/stats/full"
- "@apache-mynewt-core/sys/sysinit"
- "@apache-mynewt-core/sys/id"
- "@mynewt-nrf51-adc-driver/libs/adc_nrf51_driver"
syscfg.vals:
LOG_LEVEL: 2
LOG_CLI: 1
# Disable central and observer roles.
BLE_ROLE_BROADCASTER: 1
BLE_ROLE_CENTRAL: 0
BLE_ROLE_OBSERVER: 0
BLE_ROLE_PERIPHERAL: 1
# Disable unused eddystone feature.
BLE_EDDYSTONE: 0
# Log reboot messages to a flash circular buffer.
REBOOT_LOG_FCB: 1
LOG_FCB: 1
CONFIG_FCB: 1
# Enable newtmgr commands.
STATS_NEWTMGR: 1
LOG_NEWTMGR: 1
# Enable Config.
CONFIG_NEWTMGR: 1
# OS main/default task
OS_MAIN_STACK_SIZE: 428
SHELL_TASK: 1
STATS_CLI: 1
STATS_NAMES: 1
# RAM reduction
BLE_ACL_BUF_SIZE: 128
MSYS_1_BLOCK_COUNT: 4
MSYS_1_BLOCK_SIZE: 292
ADC_0_SCALING: NRF_ADC_CONFIG_SCALING_INPUT_ONE_THIRD
ADC_0_INPUT: NRF_ADC_CONFIG_INPUT_2
ADC_0_SAMPLES: 1
BLE_LL_CFG_FEAT_LE_ENCRYPTION: "0"
BLE_SM_LEGACY: "0"
