The Bootloader upgrade proccess from UART involves 3 binaries.
1) BUILD the loader binary. This is the binary that runs in 452,
reads from UART and writes the actual bootloader to flash
cd loader/
make sc14452loader
2) Build the actual bootloader
cd cr16boot/
make sc14452reef_config
make all
make image_452
3) Build the host PC application that communicates with UART.
cd uart/host
Make sure #define MODEMDEVICE "/dev/ttyS0" corresponds to the actual UART device.
make all
if you want to run binary from Windows use WinHost.tar
3a) Build target UART application
cd uart/target
make all
4) Make sure 452 is in boot mode: Short UART TX with GRND (the 2 pins in uart
connector edges) while you power ON the device. The UART RX led will start blinking.
5) Please copy all files needed to flash into one place:
a) uart/host/uartfp
b) uart/target/452fp.bin
c) cr16boot/image452.bin
You can flash target with command:
On linux host use following command:
./uartfp 452fp.bin image452.bin
If running in Windows host type:
uart.exe 31 452fp.bin image452.bin (31 is COM port number)
You should see the following output
Programmer File Size 3292
Programmer File CRC 0x95
Image File Size 82224
Image File CRC 0xE0
state IDLE rec: 0x02
Downloading programmer ...
state WAIT_ACK rec: 0x06
state WAIT_CRC rec: 0x95
state CHANGE_UART_BPS
state PROG_IDLE rec: 0x05
Downloading image ...
state PROG_WAIT_ACK rec: 0x07
state PROG_WAIT_CRC rec: 0xE0
Programming image ...
state PROG_WAIT_COMP rec: 0x17
Flash programmed successfully
A reset of the board twice will give:
@@@ @@ @@
@@@@@ @@ @@ @@
@@@@@ @@ @@
.@@@@@. @@@@@ @@@ @@ @@ @@@@ @@ @@@ @@@
@@@@@@ @@@@@@@ @@ @@@ @@ @@ @@ @@ @@ @@ @@
@@@@@ @@@@@@@@ @@ @@ @@ @@@@@@ @@ @@ @@ @@ @@
@@@@@@ @@@@@@@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@
@@@@@@@@ @@@@@ @@ @@@ @@ @@ @@ @@ @@ @@ @@ @@
@@@@@@@@@@@ @@@ @@@@ @@ @@ @@@@@ @@ @@@ @@@@@
@@@@@@@@@@@ @@@@ @@
@@@@@@@@@@@@@@@@ @@
@@@@@ S E M I C O N D U C T O R @@@@@
Sitelboot 1.0.3 (Nov 27 2012 - 15:16:59)
Runing on SC14452 SoC
SiTelboot
code: 00f00000 -> 00f0ec58
data: 00f124b8 -> 00f14444
DRAM Configuration:
Bank #0: 00020000 15 MB
WINBOND: W25Q32 (32-megabit)
FLASH Configuration:
Bank #0: 00000000 4 MB
Hit any key to stop autoboot: 0
SiTel #
Harald Welte
e6c0007580