MSPM0L1306: Code size increases significantly when switching to MSPM0 SDK 1.30.00.03

Tiger Wang

Part Number: MSPM0L1306

Hi,

We saw that you recently updated smbus module in the latest SDK. However, it increases ~700B code size. Since we are very size constraint, we want to know if there is a way to optimize it.

Can we eliminate any unused features by specifying build flag upon local build of SDK?

Also, currently, we only use I2C_SMBUS controller on our project, I don't understand why "smbus target" related code is involved here.

Attachment: Code size diff (only show majority difference, coming from smbus.a)

Old			New			Diff (new-old)
size (hex)	module	func name	size (hex)	module	func name
00000020	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessNACK)	00000020	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessNACK)	0
000000b6	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessRx)	000000b6	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessRx)	0
0000003c	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessStop)	00000050	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessStop)	20
00000028	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessTimeout)	00000028	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessTimeout)	0
0000006a	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessTx)	0000007e	smbus_nwk.o	(.text.SMBus_NWK_controllerProcessTx)	20
00000014	smbus_nwk.o	(.text.SMBus_NWK_controllerReset)	00000014	smbus_nwk.o	(.text.SMBus_NWK_controllerReset)	0
0000006a	smbus_nwk.o	(.text.SMBus_NWK_controllerTxDone)	0000006a	smbus_nwk.o	(.text.SMBus_NWK_controllerTxDone)	0
00000010	smbus_nwk.o	(.text.SMBus_NWK_getRxPayloadSize)	00000010	smbus_nwk.o	(.text.SMBus_NWK_getRxPayloadSize)	0
00000066	smbus_nwk.o	(.text.SMBus_NWK_startRxTransfer)	00000066	smbus_nwk.o	(.text.SMBus_NWK_startRxTransfer)	0
0000003e	smbus_nwk.o	(.text.SMBus_NWK_startTxTransfer)	00000048	smbus_nwk.o	(.text.SMBus_NWK_startTxTransfer)	10
			000000d4	smbus_nwk.o	(.text.SMBus_NWK_targetProcessRx)	212
			0000006c	smbus_nwk.o	(.text.SMBus_NWK_targetProcessStart)	108
			00000058	smbus_nwk.o	(.text.SMBus_NWK_targetProcessStop)	88
00000040	smbus_phy.o	(.text.SMBus_PHY_controllerEnable)	00000034	smbus_phy.o	(.text.SMBus_PHY_controllerEnable)	-12
00000028	smbus_phy.o	(.text.SMBus_PHY_controllerEnableInt)				-40
0000000a	smbus_phy.o	(.text.SMBus_PHY_controllerInit)	0000004c	smbus_phy.o	(.text.SMBus_PHY_controllerInit)	66
000000b4	smbus_phy.o	(.text.SMBus_PHY_controllerProcessInt)	00000100	smbus_phy.o	(.text.SMBus_PHY_controllerProcessInt)	76
00000028	smbus_phy.o	(.text.SMBus_PHY_controllerSendStop)	00000028	smbus_phy.o	(.text.SMBus_PHY_controllerSendStop)	0
000000b4	smbus_phy.o	(.text.SMBus_PHY_controllerStartRx)	000000cc	smbus_phy.o	(.text.SMBus_PHY_controllerStartRx)	24
000000e0	smbus_phy.o	(.text.SMBus_PHY_controllerStartTx)	000000e0	smbus_phy.o	(.text.SMBus_PHY_controllerStartTx)	0
00000020	smbus_phy.o	(.text.SMBus_PHY_disable)	00000024	smbus_phy.o	(.text.SMBus_PHY_disable)	4
			00000024	smbus_phy.o	(.text.SMBus_PHY_targetManualACK)	36

					Sum	612