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4.5.2 BSL Core Messages .............................................................................................. 31
4.5.3 BSL Version Number ............................................................................................. 32
4.5.4 Example Sequences .............................................................................................. 32
5 Bootstrap Loader Hardware ....................................................................................... 33
5.1 Hardware Description ...................................................................................................... 33
5.1.1 Power Supply ...................................................................................................... 33
5.1.2 Serial Interface ..................................................................................................... 34
5.1.3 Target Connector .................................................................................................. 35
5.1.4 Parts List ........................................................................................................... 36
6 Differences Between Devices and Bootstrap Loader Versions ....................................... 37
6.1 Special Consideration for the MSP430F543x and MSP430F541x BSL ............................................ 37
6.2 Special Consideration for ROM BSL Version 1.10 .................................................................... 37
6.3 BSL Known issues ......................................................................................................... 38
7 Bootstrap Loader PCB Layout Suggestion .................................................................. 47
8 MSP430 Programming Via the JTAG Interface .............................................................. 51
8.1 Introduction .................................................................................................................. 51
8.2 Interface and Instructions ................................................................................................. 52
8.2.1 JTAG Interface Signals ........................................................................................... 52
8.2.2 JTAG Access Macros ............................................................................................. 54
8.2.3 Spy-Bi-Wire (SBW) Timing and Control ....................................................................... 57
8.2.4 JTAG Communication Instructions .............................................................................. 61
8.3 Memory Programming Control Sequences ............................................................................. 66
8.3.1 Start-Up ............................................................................................................. 66
8.3.2 General Device (CPU) Control Functions ...................................................................... 69
8.3.3 Accessing Non-Flash Memory Locations With JTAG ........................................................ 77
8.3.4 Programming the Flash Memory (Using the Onboard Flash Controller) ................................... 81
8.3.5 Erasing the Flash Memory (Using the Onboard Flash Controller) .......................................... 86
8.3.6 Reading From Flash Memory .................................................................................... 90
8.3.7 Verifying the Flash Memory ...................................................................................... 90
8.4 JTAG Access Protection .................................................................................................. 90
8.4.1 Burning the JTAG Fuse - Function Reference for 1xx/2xx/4xx Families ................................... 90
8.4.2 Programming the JTAG Lock Key - Function Reference for 5xx Family................................... 92
8.4.3 Testing for a Successfully Protected Device .................................................................. 93
8.5 JTAG Function Prototypes ................................................................................................ 93
8.5.1 Low-Level JTAG Functions ...................................................................................... 93
8.5.2 High-Level JTAG Routines ....................................................................................... 95
8.6 References .................................................................................................................. 99
9 JTAG Programming Hardware and Software Implementation ....................................... 101
9.1 Implementation History ................................................................................................... 101
9.2 Implementation Overview ................................................................................................ 101
9.3 Software Operation ....................................................................................................... 102
9.4 Software Structure ........................................................................................................ 103
9.5 Programmer Operation ................................................................................................... 105
9.6 Hardware Setup ........................................................................................................... 105
9.6.1 Host Controller ................................................................................................... 105
9.6.2 Target Connection ............................................................................................... 105
9.6.3 Host Controller/Programmer Power Supply .................................................................. 107
4 Contents SLAU265C – February 2009 – Revised July 2009
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