initial check in based on SVN revision 575

source/m95512.c

@@ -0,0 +1,69 @@
+/*
+ * m95512.c
+ *
+ *  Created on: Nov 1, 2023
+ *      Author: Warner
+ */
+
+#include "m95512.h"
+#include "fsl_spi.h"
+#include "spi.h"
+#include "timer.h"
+
+#define M95512_BUFFER_SIZE (8)
+
+extern uint8_t Port_State[];
+extern spi_transfer_t SPI0_xfer;
+
+
+
+/*	BB 11/10/23
+ * 	m95512.c functions should ONLY be used by eeprom.c functions!
+ * 	This is because the CTIMER0 interrupt corrupts EEPROM data
+ * 	eeprom.c functions stop CTIMER0 while accessing the EEPROM
+ */
+
+
+status_t M95512_WriteEnable(void){
+    status_t reslut;                //not used, because function SPI0_SendBytes() has no return.
+    uint8_t srcBuff[M95512_BUFFER_SIZE];
+
+    srcBuff[0] = WRITE_ENABLE;
+    SPI0_SendBytes(srcBuff, 1, E2PROM);
+
+    return reslut;
+}
+
+status_t M95512_WriteDisable(void){
+    status_t reslut;
+    uint8_t srcBuff[M95512_BUFFER_SIZE];
+
+    srcBuff[0] = WRITE_DISABLE;
+    SPI0_SendBytes(srcBuff, 1, E2PROM);
+
+    return reslut;
+}
+
+status_t M95512_ReadStatus(uint8_t *pdata){
+    status_t reslut;
+    uint8_t srcBuff[M95512_BUFFER_SIZE];
+    uint8_t destBuff[M95512_BUFFER_SIZE];
+
+    srcBuff[0] = READ_STATUS_REG;
+    SPI0_SendBytes(srcBuff, 2, E2PROM);
+    *pdata = SPI0_xfer.rxData[1];
+
+    return reslut;
+}
+
+status_t M95512_WriteStatus(uint8_t *pdata){
+    status_t reslut;
+    uint8_t srcBuff[M95512_BUFFER_SIZE];
+
+    srcBuff[0] = WRITE_STATUS_REG;
+    srcBuff[1] = *pdata;
+    SPI0_SendBytes(srcBuff, 2, E2PROM);
+
+    return reslut;
+}
+