Compiler/AM3358: ADC sampling rate

MEHTA PARTH

Part Number: AM3358

Tool/software: TI C/C++ Compiler

Hii

I am working on AM3358 development board and for my requirement i need to increase sampling rate of AM3358 ADC, so how can i do it?

over 5 years ago

0 Biser Gatchev-XID over 5 years ago

TI__Guru**** 393215 points

Hi,

Your query has been assigned to a TI engineer. Please note that response may be delayed due to Christmas and New Year holidays.

0 Frank Livingston over 5 years ago in reply to Biser Gatchev-XID

TI__Mastermind 29388 points

Hi,

Details on the TSC ADC can be found in the AM335x TRM, Chapter 12 (spruh73).

Software for the TSC is available in PRSDK in the Starterware folder: <PDK>\packages\ti\starterware. An example program is provided for the TSC ADC in starterware\examples\adc. The example can be built on Windows as follows:

Follow instructions here: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/06_01_00_08/rtos/index_overview.html?highlight=building#windows
cd to <PDK>\pdk_am335x_1_0_16\packages\ti\starterware
issue command "gmake adc_app_volt_measure PLATFORM=am335x-evm" on the DOS command line

Documentation for the Starterware is located here: <PDK>\packages\ti\starterware\docs

To change the AFE sampling rate, use this API:

/**
* \brief Configure the clock divider.
*
* \param baseAddr Base Address of the TouchScreen Module Registers.
* \param moduleClk Module clock of ADC in MHz.
* \param afeInputClk Input clock in MHz
*/
void TSCADCClkDivConfig(uint32_t baseAddr,
uint32_t moduleClk,
uint32_t afeInputClk);

Regards,
Frank

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Compiler/AM3358: ADC sampling rate