@mchp-mcc/scf-pic8-mssp-v1 NPM

MSSP Driver Melody Module

Overview

The Master Synchronous Serial Port (MSSP) module is a serial interface useful for communicating with other peripheral or microcontroller devices. These peripheral devices may be serial EEPROMs, shift registers, display drivers, A/D converters, etc. The MSSP module can operate in one of two modes:

Serial Peripheral Interface (SPI)
Inter-Integrated Circuit (I2C)

Features

The SPI and I2C interface supports the following operating modes

Host mode
Client mode

The driver operation can be configured as

Polling
Interrupt

Changelog

All notable changes to this project will be documented in this file.

7.0.3 - 2024-12-18

Bug Fixes

M8PD-12295 :- Updated I2Cx_IsBusy API in MSSP host driver to remove S bit check in SSP1STAT register
M8PD-7589 :- Modified the client driver error handler to clear the SSPOV bit if it is set by hardware, preventing the bus from locking up
M8PD-5173 :- Corrected the wrongly set read-only SSPxSTAT bit during I2C client operations, with the default set to zero

7.0.2 - 2024-09-27

Bug Fixes

M8PD-10703 :- Unit test stage on CICD pipeline and locally passed when the coverage for the module files was lesser than the threshold
M8PD-9373 :- Included stddef.h header in the interface files of the I2C/TWI Host and client for successful compilation
M8PD-9323 :- Fixed the PIC MSSP driver to check for ACKTIM bit after an address match by the client
M8PD-8902 :- Fixed I2C drivers to avoid incorrect occurrence of TX_READY state prior to the ACK reception for the address match
M8PD-8844 :- Fixed the I2C client to check for ACKSTAT bit for address match instead of checking ACKDT
M8PD-8843 :- Fixed I2C drivers to enable clock stretching for ack, address or data reception
M8PD-6136 :- PIC16 I2C Client Address match event occurs after the ACK/NAK has already occurred
M8PD-5191 :- Fixed the I2C address mask for PIC18F devices to be set to default POR of "7F" to avoid I2C slave malfunctioning with multiple devices
M8PD-5088 :- Fixed driver to avoid generating continuous I2C NAK interrupts after setting PEN for PIC16F13145 device