Other Parts Discussed in Thread: C2000WARE
Tool/software: Starterware
All:
CCS 7.0
C2000ware 1.0
sci_ex3_echoback example
Made some quick changes to get the SCIA working through the USB-UART:
In main()
//
// GPIO28 was the SCI Rx pin. GPIO43 for launchpad
//
GPIO_setMasterCore(43, GPIO_CORE_CPU1);
GPIO_setPinConfig(GPIO_43_SCIRXDA);
GPIO_setDirectionMode(43, GPIO_DIR_MODE_IN);
GPIO_setPadConfig(43, GPIO_PIN_TYPE_STD);
GPIO_setQualificationMode(43, GPIO_QUAL_ASYNC);
//
// GPIO29 was the SCI Tx pin. GPIO 42 for launchpad
//
GPIO_setMasterCore(42, GPIO_CORE_CPU1);
GPIO_setPinConfig(GPIO_42_SCITXDA);
GPIO_setDirectionMode(42, GPIO_DIR_MODE_OUT);
GPIO_setPadConfig(42, GPIO_PIN_TYPE_STD);
GPIO_setQualificationMode(42, GPIO_QUAL_ASYNC);
In device.h
//
// 20MHz XTAL on controlCARD. For use with SysCtl_getClock().
//
#define DEVICE_OSCSRC_FREQ 10000000U // was 20000000U
In CCS debug view, brought up terminal: Window->Show View->Other then scroll to terminal and select. It is already defaulted to 9600 BAUD. When I ran program, here is display:
Hello World!
You will enter a character, and the DSP will echo it back!
Enter a character: You sent: a
By the way, it is always nice to have a UART working - it enables a nice interface for working with such a complex part.
Besides the built-in terminal on CCS, I have also used Tera Term, a free terminal program that is widely popular.
My next step would be to go to full speed on the DSP (200 MHz), but I wanted to at least get a threshold going.
