The CIO-SP4 vehicle has a $50 billion ceiling.Įntities seeking inclusion in National Institutes of Health Information Technology Acquisition and Assessment Center (NITAAC)’s 10-year solicitation have made multiple challenges through bid protests over the last two years. Protests filed by entities not represented by counsel will be addressed in a separate, forthcoming decision, Patton added.ĬIO-SP4 is the fourth iteration of a contract vehicle for acquiring commoditized IT products and specialized services that has been dogged by pre-award protests since the agency first requested proposals in May 2021. It addressed protests by entities represented by outside counsel who were eligible for a protective order. The decision was issued under a protective order because it “may contain proprietary and source selection sensitive information,” according to Patton. GAO denied remaining arguments the protesters raised, which included challenges to other aspects of the evaluations and untimely challenges, he said. Patton also said the GAO found the agency “unreasonably evaluated specific aspects” of a phase one proposal from Sky Solutions LLC. “GAO recommended that the agency reevaluate proposals consistent with the decision, and make new determinations of which proposals advance past phase 1 of the competition based on the results of these new evaluations,” Patton said, echoing previous statements from the organization. Patton said the agency’s decision to not advance those proposals was “flawed”, citing NIH’s inability to show that it both reasonably evaluated phase one proposals and determined which would move on to the next stages of the competition. In a Thursday statement, managing associate general counsel for procurement law at GAO Kenneth E. The Government Accountability Office sustained 93 legal challenges to National Institutes of Health’s embattled solicitation, CIO-SP4, concluding that the agency “unreasonably failed” to advance proposals past the first phase on their evaluation.
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Alternatively, if master transmitted bytes to a slave, this function on the slave will be used to read the bytes Wire.read() − If a master send requestFrom() to slave, then it will read the returned byte using this function. Wire.write(byte) − Queue bytes for transmission from master to slave, or write data from slave in response to request from master Wire.SetClock(frequency) − Set the clock speed to frequency (in Hz) Wire.endTransmission() − End a transmission initiated by beginTransmission() Wire.beginTransmission(address) − Initiate transmission with the slave identified by address The important functions of this library are given below − The following pins are generally used for SPI −Īrduino has a built-in Wire library. Start/Stop sequence is required to signal start and end of communication If they want to send high level, they simply release the bus. two resistors pull the bus to a high level and the devices only send low levels. The data and clock lines are pulled up, i.e. The slave has to make sure that the next bit is ready when the clock pulse arrives If the master wants to receive the data, it only generates clock pulses. Thus a maximum of 127 slaves with unique addresses can be connected to a single master.Īfter each byte, the receiver must send a 0 to acknowledge the reception of the byte The first byte sent by the master contains a seven-bit address and a read/ write bit indicating whether the next bytes will come from the master or should come from the slave. The slaves are not selected via a slave select line, but via address bits. I2C is synchronous because it uses a clock. It uses only two lines: One for data (SDA) and one for clock (SCL). Arduino refers to I2C as Wire, which is a shorter form of the term Atmel uses (Two Wire Interface or TWI). It is a popular communication protocol used by several peripherals like accelerometer and gyroscopes, OLED Displays, etc. |
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