Part Number: MCU-PLUS-SDK-AM243X
Hello,
I'm trying to read out the temperature data using VTM module. By using the example code I'm getting a constant value for every instance. And the value is pretty high (perhaps unrealistic ?).
Could you give example to read out data correctly please?
I have attached the code block that I'm using to read the data
int32_t temp_milli_degrees_read;
int32_t status;
SDL_VTM_adc_code adc_code_read;
SDL_VTM_Stat_val statusVal;
SDL_VTM_Stat_read_ctrl readCtrl = SDL_VTM_TS_READ_DATA_OUT_VAL;
SDL_VTM_configTs cfgTs;
cfgTs.tsCtrl_cfg.valid_map = SDL_VTM_TS_CTRL_MODE_VALID;
cfgTs.tsCtrl_cfg.maxt_outrg_alert_en = 0;
cfgTs.tsCtrl_cfg.tsReset = 0;
cfgTs.tsCtrl_cfg.adc_stat = 0;
cfgTs.tsCtrl_cfg.mode = SDL_VTM_TS_CTRL_CONTINUOUS_MODE;
cfgTs.configTsCtrl = SDL_VTM_VD_CONFIG_CTRL_SET_CTL;
for (size_t i = 0; i < 8; i++)
{
status = SDL_VTM_initTs(static_cast<SDL_VTM_InstTs>(i), &cfgTs);
platformLog("Init temperature instance : %d\r\n"
"Status : %d\r\n",
static_cast<SDL_VTM_InstTs>(i), status);
if (status == SDL_PASS)
{
status = SDL_VTM_getSensorStatus(static_cast<SDL_VTM_InstTs>(i), &readCtrl, &statusVal);
adc_code_read = statusVal.data_out;
SDL_VTM_tsConvADCToTemp(adc_code_read,static_cast<SDL_VTM_InstTs>(i), &temp_milli_degrees_read);
platformLog("Init temperature instance : %d\r\n"
"Status : %d\r\n"
"ADC code : %d\r\n"
"Read out data : %d\r\n",
static_cast<SDL_VTM_InstTs>(i), status, adc_code_read, temp_milli_degrees_read);
}
and the output is following:
Init temperature instance : 0 Status : 0 Init temperature instance : 0 Status : 0 ADC code : 1008 Read out data : 155998 Init temperature instance : 1 Status : 0 Init temperature instance : 1 Status : 0 ADC code : 881 Read out data : 144067 Init temperature instance : 2 Status : 0 Init temperature instance : 2 Status : 0 ADC code : 152 Read out data : 3326 Init temperature instance : 3 Status : 0 Init temperature instance : 3 Status : 0 ADC code : 246 Read out data : 28385 Init temperature instance : 4 Status : 0 Init temperature instance : 4 Status : 0 ADC code : 152 Read out data : 3326 Init temperature instance : 5 Status : 0 Init temperature instance : 5 Status : 0 ADC code : 153 Read out data : 3604 Init temperature instance : 6 Status : 0 Init temperature instance : 6 Status : 0 ADC code : 246 Read out data : 28385 Init temperature instance : 7 Status : 0 Init temperature instance : 7 Status : 0 ADC code : 176 Read out data : 9919
