Part Number: CC2538
Other Parts Discussed in Thread: Z-STACK
Our need OTA feature in CC2538 Cotex-M3 with Z-Stack 3.0,but the bootloader(Image Boot Manager) don't work.
It is well know that OTA Boot and Client applications can be combined into a single .hex image file suitable for the TI Flash Programmer.We reference the Z-Stack OTA Upgrade User’s Guide documents,test on \CC2538\SampleSwitch.eww IAR project ,the built final *.hex image file download successful with SmartRF Programmer2 studio,but the application can't be run.
1. The Image Boot Manager project resides in default installed directory "C:\Texas Instruments\Z-Stack 3.0.0\Projects\zstack\OTA\Boot\CC2538\Boot.eww"，this project can't debugger correctly in CC2538 soc if not modify any source code(The default built image size is 912 Bytes named Boot.bin).
2. We add the following source code in Boot.eww project correspond C source file startup_ewarm.c,rebuild the project,debugger can be run in main entry point.I guess the bootloader is correctly built,but the Boot.bin image size is so big that can't be combined with Application image(We test on SampleSwitch.eww,it encounter the built stage error) (add the .cca segments code,Boot.bin image size is 2016 Bytes)
typedef struct
{
unsigned char ulImageBackdoor[4]; // Note that the backdoor configuration is in the MSB.
unsigned long ulImageValid;
unsigned long ulImageVectorAddr;
} lockPageCCA_t;
// Create section for Customer configuration area in upper flash page.
__root const lockPageCCA_t __cca @ ".cca" =
{
// If required use the following values to enable the backdoor for
// Port-A, Pin-7, active low within 10-usec after reset to force boot.
// { 0xFF, 0xFF, 0xFF, BACKDOOR_ENABLE_BIT | 0x07},
{0,0,0,0}, // Initial values, backdoor disabled
0x00000000, // Image valid field.
(unsigned long)__vector_table // FLASH_BASE
// Vector table located at flash start address.
};
3. How to resolve this intractability problem?
