FAQs

General

You can purchase all of our products from our Distribution partners.  They are listed on our Buy Now page.

TI is a key supplier to Octavo.  We have a very strong partnership but there are no financial ties between us.

No, it won’t. We specifically designed our products to have a wide 1.27 mm ball pitch allowing the use of low cost manufacturing options.

OSD335x

We plan to support these devices as long as TI continues to support the AM335x device. In fact, we will most likely be able to support them longer than TI will because of our ability to bank die.

The OSD335x is BeagleBoard Compatible meaning they can run any of the software provided by BeagleBoard.org. Here is a link to getting started on Beaglebone.

The AM335x Software Design Guide from TI will help you become familiar with the overall software design process for AM335x. TI also provides Linux and TI-RTOS support for software development.

The following table shows the minimum set of signals that need to be connected externally between the processor (AM335x) and PMIC (TPS65217C) to use the OSD335x-BAS/IND devices. It also shows internal pull up resistor values, the voltage rail they are pulled up to and the specific pad that was pulled up.

OSD335x Pad Name PAD OSD335x PAD Name PAD Pull Up Resistor Value Pull Up Voltage Pull Up on PAD
PMIC_IN_I2C_SCL C20 I2C0_SCL C16 4.7 K VDDSHV_3P3V C20
PMIC_IN_I2C_SDA C19 I2C0_SDA C17 4.7 K VDDSHV_3P3V C19
PMIC_IN_PWR_EN D19 PMIC_POWER_EN C6 10 K SYS_RTC_1P8V D19
PMIC_OUT_PGOOD A20 PWRONRSTN B15 NONE N/A N/A
PMIC_OUT_LDO_PGOOD B20 RTC_PWRONRSTN B5 NONE N/A N/A
PMIC_OUT_NINT B19 EXTINTN B18 10 K VDDSHV_3P3V B18
PMIC_OUT_NWAKEUP A19 EXT_WAKEUP C5 10 K SYS_RTC_1P8V C5

 

Power consumption of OSD335x depends highly on usage scenarios. The OSD335x-BAS/IND Power Application Note and Software Power Management with the OSD335x Family application notes will give you detailed information about OSD335x power consumption in various operating states.

Other helpful resources  are:

  1. AM335x Power Consumption Summary: This wiki page provides current and power measurements for common system application usage scenarios. However, these measurements were made for a presently unsupported version of SDK. Updated power consumption data can be found here.
  2. Power Estimation Tool: This entails modifying and submitting a spreadsheet specifying processor mode and peripheral usage of AM335x. Login to TI website is required and the results will be emailed to the email address used to login.

The ORCAD files for both OSD335x and OSD335x-SM devices can be found here.

 

These power pins are driven by the TPS65217C PMIC and are used internally to power the AM335x, DDR and other components.  These pins are all connected within the SiP and should not be connected externally.  Optionally, these pins can be brought out as test points for debugging purposes only.  They should NEVER be used to power external components.

The OSD335x family supports all the frequencies supported by corresponding AM335x present inside. For example, the AM3358 inside the OSD3358 supports 6 Operational Performance Points(OPP). It can run at 300MHz, 600MHz, 720MHz, 800Mhz and 1GHz. These operational performance points are set using the Digital Phase Locked Loops(DPLLs) and MPU, CORE voltages on the AM335x. The following figure from the AM335x datasheet (Table 5-7) shows the OPPs, the corresponding MPU voltage to be set and the frequency of operation of the OPP (Source: AM335x datasheet).

VDD_MPU OPP VDD_MPU  ARM Clock Speed
MIN NOM MAX
Nitro 1.272 V 1.325 V 1.378 V 1 GHz
Turbo 1.210 V 1.260 V 1.326 V 800 MHz
OPP120 1.152 V 1.200 V 1.248 V 720 MHz
OPP100 1.056 V 1.100 V 1.144 V 600 MHz
OPP50 0.912 V 0.950 V 0.988 V 300 MHz

Yes, OSD335x family runs all Linux distributions supported by TI for AM335x. It is also officially BeagleBoard Compatible so it will run the same Linux distributions found on Beaglebone Family of products.

The pins of OSD335x correspond to the ZCZ package of the AM335x.

The ball map of the OSD335x-BAS/IND was designed to match the ball map of AM335x ZCZ package except for a few changes. The following figure highlights the changes that were made to AM335x ZCZ ball map.

Violet and Grey pins are the only pins that have been moved or functionally changed.

Blue pins (AM335x DDR interface) should be left unconnected.

Green pins (AM335x Power input pins) should be left unconnected or brought out as test points for monitoring.

Orange pins are additional pins added to the package for more functions.

Please refer the datasheet of OSD335x-BAS for their functional description.

The major changes in functionality are listed below. (more…)

All the peripherals supported by the AM335x are also supported by the OSD335x-BAS/IND.  However, the OSD335x-BAS/IND only supports 3.3V I/Os. Please refer to question ‘What are the differences in ball maps of AM335x and OSD335x?‘ for ball map differences between OSD335x and AM335x.

No, you don’t. The AM335x die in the OSD335x is the same as the Die in the discrete TI device.  This means that the Pin Mux will work the same on the OSD335x as it would on the discrete version. There are minor differences in location and position of a few signals. Please refer to question ‘What are the differences in ball maps of AM335x and OSD335x?‘ for ball map differences between OSD335x and AM335x.

Yes, the OSD335x family supports all of the functions of AM335x that is inside the OSD335x.

The AM3358 supports PRUs therefore the OSD3358 supports PRUs.

The MUX_OUT pin of the PMIC (TPS65217C) can be connected to the ADC channels of the AM335x externally on the OSD335x-SM device. The ball numbers for each of the PMIC_MUX pins and commonly used ADC channel are given below:

OSD335x-SM Signal Name Ball Number
PMIC_MUX_IN N13
PMIC_MUX_OUT D6
AIN7 D7

 

But, OSD335x (OSD3358-BAS) DOES NOT support this functionality since MUX_IN and MUX_OUT pins are not externally accessible on this device.

The AM335x inside of the OSD335x family of devices can directly drive LCD panels.  Here is an overview pulled from the AM335x datasheet on TI.com

  • LCD Controller
    • Up to 24-Bit Data Output; 8 Bits per Pixel (RGB)
    • Resolution up to 2048 × 2048 (With Maximum 126-MHz Pixel Clock)
    • Integrated LCD Interface Display Driver (LIDD) Controller
    • Integrated Raster Controller
    • Integrated DMA Engine to Pull Data from the External Frame Buffer Without Burdening the Processor via Interrupts or a Firmware Timer
    • 512-Word Deep Internal FIFO
    • Supported Display Types:
  • Character Displays – Uses LIDD Controller to Program these Displays
  • Passive Matrix LCD Displays – Uses LCD Raster Display Controller to Provide Timing and Data for Constant Graphics Refresh to a Passive Display
  • Active Matrix LCD Displays – Uses External Frame Buffer Space and the Internal DMA Engine to Drive Streaming Data to the Panel

(Source: AM335x datasheet)

The oscillator circuit for real time and system clock inputs is shown in figure 6-9 and 6-12 in the AM335x datasheet.q12

The values of components C1 and C2 referred in the figures depend on the load capacitance (CL) specified (more…)

There are 3 use case scenarios for RTC functionality. They are the RTC-only mode which allows all the power supplies except for the RTC to be turned off to save power, RTC timer functionality mode in which the Real Time clocking features are used and RTC disabled mode in which RTC features are not used. Use of RTC requires both software and hardware setups. The hardware requirements of various RTC configurations are shown below and described in detail in the AM335x schematic checklist. Note that RTC-Only mode is not supported by the OSD335x family of devices because of the version of the PMIC (TPS65217C) used to power AM335x.

Pin Function RTC timer functionality but no RTC-only mode RTC feature disabled
CAP_VDD_RTC RTC core voltage input No Connect VDD_CORE
RTC_KALDO_ENn Internal LDO enable input Pulled down to VSS Pulled up to SYS_RTC_1P8V
RTC_PWRONRSTn RTC Power On Reset input PMIC_OUT_LDO_PGOOD VSS
PMIC_POWER_EN PMIC power enable output PMIC_IN_PWR_EN No Connect
EXT_WAKEUP External wakeup input PMIC_OUT_NWAKEUP VSS

While there are Linux drivers available for the RTC, the following steps describe the low-level software procedure to enable use of an external 32Khz oscillator for RTC clock input.

Begin with writing the KICK registers to disable write protect to RTC registers.

  1. Write the value 0x83E70B13 to KICK0R (0x44E3E06C) register.
  2. Write the value 0x95A4F1E0 to KICK1R (0x44E3E070) register.

RTC_OSC_REG (0x44E3E054) register needs to be modified to enable external oscillator clock input. Set RTC_OSC_REG[4] to 1 to select external 32KHz oscillator as clock source and RTC_OSC_REG[6] to enable clock mux of RTC. Note that 0 at RTC_OSC_REG[2] enables the use of internal feedback resistor instead of an external one.

  1. Write the value 0x48 to RTC_OSC_REG (0x44E3E054).

The procedure can be verified by either probing the output of the 32KHz (OSC1) oscillator or probing the XDMA_EVENT_INTR1 signal selecting OSC1 as its clock source.

OSD335x-SM

Power consumption of OSD335x-SM depends highly on usage scenarios. The OSD335x-SM Power Application Note and the OSD335x Power Management Software Control Application Note will give you detailed information about OSD335x-SM power consumption in various operating states.

Other helpful resources are:

  1. AM335x Power Consumption Summary: This wiki page provides current and power measurements for common system application usage scenarios. However, these measurements were made for a presently unsupported version of SDK. Updated power consumption data can be found here.
  2. Power Estimation Tool: This entails modifying and submitting a spreadsheet specifying processor mode and peripheral usage of AM335x. Login to TI website is required and the results will be emailed to the email address used to login.

We plan to support these devices as long as TI continues to support the AM335x device. In fact, we will most likely be able to support them longer than TI will because of our ability to bank die.

No, you don’t. The AM335x die in the OSD335x-SM is the same as the Die in the discrete TI device.  This means that the Pin MUX will work the same on the OSD335x-SM as it would on the discrete version. There are differences in the location and position of the signals, however. Please refer to OSD335x Family Pin Assignments page for ball map differences between OSD335x-SM and AM335x.

All the peripherals supported by the AM335x are also supported by the OSD335x-SM. Please refer to the Ball Map section of the OSD335x-SM datasheet to understand naming conventions of various balls of OSD335x-SM. Also, the OSD335x Family Pin Assignments page gives you detailed information about pin mapping differences between OSD335x-SM and AM335x.

The ORCAD files for both OSD335x and OSD335x-SM devices can be found here.

 

The following table shows the minimum set of signals that need to be connected externally between the processor (AM335x) and PMIC (TPS65217C) to use the OSD335x-SM. It also shows internal pull up resistor values, the voltage rail they are pulled up to and the specific pad that was pulled up.

OSD335x-SM Pad Name PAD OSD335x-SM PAD Name PAD Pull Up Resistor Value Pull Up Voltage Pull Up on PAD
PMIC_SCL D10 I2C0_SCL C10 4.7 K VDDSHV6 C10
PMIC_SDA D11 I2C0_SDA C11 4.7 K VDDSHV6 C11
PMIC_PWR_EN N11 PMIC_POWER_EN N10 4.7 K SYS_RTC_1P8V N11
PMIC_PGOOD N12 PWRONRSTN P11 NONE N/A N/A
PMIC_LDO_PGOOD N4 RTC_PWRONRSTN N5 NONE N/A N/A
PMIC_NINT E4 EXTINTN D4 4.7 K VDDSHV6 D4
PMIC_NWAKEUP L4 EXT_WAKEUP M4 4.7 K SYS_RTC_1P8V M4

 

These power pins are driven by the TPS65217C PMIC and are used internally to power the AM335x, DDR and other components.  These pins are all connected within the SiP and should not be connected externally.  Optionally, these pins can be brought out as test points for debugging purposes only.  They should NEVER be used to power external components.

The OSD335x family supports all the frequencies supported by corresponding AM335x present inside. For example, the AM3358 inside the OSD3358 supports 6 Operational Performance Points(OPP). It can run at 300MHz, 600MHz, 720MHz, 800Mhz and 1GHz. These operational performance points are set using the Digital Phase Locked Loops(DPLLs) and MPU, CORE voltages on the AM335x. The following figure from the AM335x datasheet (Table 5-7) shows the OPPs, the corresponding MPU voltage to be set and the frequency of operation of the OPP (Source: AM335x datasheet).

VDD_MPU OPP VDD_MPU  ARM Clock Speed
MIN NOM MAX
Nitro 1.272 V 1.325 V 1.378 V 1 GHz
Turbo 1.210 V 1.260 V 1.326 V 800 MHz
OPP120 1.152 V 1.200 V 1.248 V 720 MHz
OPP100 1.056 V 1.100 V 1.144 V 600 MHz
OPP50 0.912 V 0.950 V 0.988 V 300 MHz

Yes, OSD335x family runs all Linux distributions supported by TI for AM335x. It is also officially BeagleBoard Compatible so it will run the same Linux distributions found on Beaglebone Family of products.

Yes, the OSD335x family supports all of the functions of AM335x that is inside the OSD335x.

The AM3358 supports PRUs therefore the OSD3358 supports PRUs.

The MUX_OUT pin of the PMIC (TPS65217C) can be connected to the ADC channels of the AM335x externally on the OSD335x-SM device. The ball numbers for each of the PMIC_MUX pins and commonly used ADC channel are given below:

OSD335x-SM Signal Name Ball Number
PMIC_MUX_IN N13
PMIC_MUX_OUT D6
AIN7 D7

 

But, OSD335x (OSD3358-BAS) DOES NOT support this functionality since MUX_IN and MUX_OUT pins are not externally accessible on this device.

The AM335x inside of the OSD335x family of devices can directly drive LCD panels.  Here is an overview pulled from the AM335x datasheet on TI.com

  • LCD Controller
    • Up to 24-Bit Data Output; 8 Bits per Pixel (RGB)
    • Resolution up to 2048 × 2048 (With Maximum 126-MHz Pixel Clock)
    • Integrated LCD Interface Display Driver (LIDD) Controller
    • Integrated Raster Controller
    • Integrated DMA Engine to Pull Data from the External Frame Buffer Without Burdening the Processor via Interrupts or a Firmware Timer
    • 512-Word Deep Internal FIFO
    • Supported Display Types:
  • Character Displays – Uses LIDD Controller to Program these Displays
  • Passive Matrix LCD Displays – Uses LCD Raster Display Controller to Provide Timing and Data for Constant Graphics Refresh to a Passive Display
  • Active Matrix LCD Displays – Uses External Frame Buffer Space and the Internal DMA Engine to Drive Streaming Data to the Panel

(Source: AM335x datasheet)

The oscillator circuit for real time and system clock inputs is shown in figure 6-9 and 6-12 in the AM335x datasheet.q12

The values of components C1 and C2 referred in the figures depend on the load capacitance (CL) specified (more…)

There are 3 use case scenarios for RTC functionality. They are the RTC-only mode which allows all the power supplies except for the RTC to be turned off to save power, RTC timer functionality mode in which the Real Time clocking features are used and RTC disabled mode in which RTC features are not used. Use of RTC requires both software and hardware setups. The hardware requirements of various RTC configurations are shown below and described in detail in the AM335x schematic checklist. Note that RTC-Only mode is not supported by the OSD335x family of devices because of the version of the PMIC (TPS65217C) used to power AM335x.

Pin Function RTC timer functionality but no RTC-only mode RTC feature disabled
CAP_VDD_RTC RTC core voltage input No Connect VDD_CORE
RTC_KALDO_ENn Internal LDO enable input Pulled down to VSS Pulled up to SYS_RTC_1P8V
RTC_PWRONRSTn RTC Power On Reset input PMIC_OUT_LDO_PGOOD VSS
PMIC_POWER_EN PMIC power enable output PMIC_IN_PWR_EN No Connect
EXT_WAKEUP External wakeup input PMIC_OUT_NWAKEUP VSS

While there are Linux drivers available for the RTC, the following steps describe the low-level software procedure to enable use of an external 32Khz oscillator for RTC clock input.

Begin with writing the KICK registers to disable write protect to RTC registers.

  1. Write the value 0x83E70B13 to KICK0R (0x44E3E06C) register.
  2. Write the value 0x95A4F1E0 to KICK1R (0x44E3E070) register.

RTC_OSC_REG (0x44E3E054) register needs to be modified to enable external oscillator clock input. Set RTC_OSC_REG[4] to 1 to select external 32KHz oscillator as clock source and RTC_OSC_REG[6] to enable clock mux of RTC. Note that 0 at RTC_OSC_REG[2] enables the use of internal feedback resistor instead of an external one.

  1. Write the value 0x48 to RTC_OSC_REG (0x44E3E054).

The procedure can be verified by either probing the output of the 32KHz (OSC1) oscillator or probing the XDMA_EVENT_INTR1 signal selecting OSC1 as its clock source.