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/************************************************************
* Percepio Tracealyzer - ITM Trace Exporter for Keil uVision
* Copyright (c) 2018, Percepio AB.
* https://percepio.com
************************************************************/
FUNC void tzSetEnable(int enable)
{
if (enable == 1)
{
printf("Starting Tracealyzer recorder\n");
// Forward the ITM data to file
exec("ITMLOG 1 > .\\tracealyzer.psf");
// Send start command to Tracealyzer (not required if using vTraceEnable(TRC_START))
exec("E CHAR tz_host_command_data = 1, 1, 0, 0, 0, 0, 0xFD, 0xFF");
exec("tz_host_command_bytes_to_read = 8");
}
else if (enable == 0)
{
printf("Stopping Tracealyzer recorder...\n");
// Send stop command to Tracealyzer, to stop writing ITM data.
exec("E CHAR tz_host_command_data = 1, 0, 0, 0, 0, 0, 0xFE, 0xFF");
exec("tz_host_command_bytes_to_read = 8");
_sleep_(2000); // Wait a while to let all data be written the host file.
// Stop forwarding the ITM data to file and close the file.
exec("ITMLOG 1 OFF");
printf("Tracealyzer recorder stopped.\n");
}
else printf("Usage: tzSetEnable(0 or 1), where 0 is disable (stops recorder) and 1 enable (starts recording)");
}
// The Tracealyzer ITM stream port for Keil µVision can be used in two ways.
//
// 1. Start tracing directly from startup.
// Make sure tzSetEnable(1) is called below and vTraceEnable(TRC_START) in your target startup.
//
// 2. Start the trace manually, using the "Start Recording" button in Keil µVision.
// In this case, comment out the below call to tzSetEnable and make sure you call vTraceEnable(TRC_INIT) in your target startup (not TRC_START).
tzSetEnable(1);
DEFINE BUTTON "Start Recording", "tzSetEnable(1)";
DEFINE BUTTON "Stop Recording", "tzSetEnable(0)";
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