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Split out NVM access code in the AVRISP project into a seperate NVMTarget.c source file and header. Make NVM register accesses use the NVM base address as set by the host, rather than using the fixed value from the XMEGA datasheet.

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This commit is contained in:
Dean Camera 2009-12-14 02:59:34 +00:00
parent 6648234157
commit 1fa27139f5
13 changed files with 237 additions and 121 deletions
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40
Projects/AVRISP/Lib/PDITarget.c
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@ -28,8 +28,6 @@
this software.
*/
#if defined(ENABLE_PDI_PROTOCOL) || defined(__DOXYGEN__)
/** \file
*
* Target-related functions for the PDI Protocol decoder.
@ -38,6 +36,8 @@
#define INCLUDE_FROM_PDITARGET_C
#include "PDITarget.h"
#if defined(ENABLE_PDI_PROTOCOL) || defined(__DOXYGEN__)
volatile bool IsSending;
#if !defined(PDI_VIA_HARDWARE_USART)
@ -275,40 +275,4 @@ void PDITarget_SendBreak(void)
#endif
}
void PDITarget_SendAddress(uint32_t Address)
{
PDITarget_SendByte(Address >> 24);
PDITarget_SendByte(Address >> 26);
PDITarget_SendByte(Address >> 8);
PDITarget_SendByte(Address & 0xFF);
}
bool PDITarget_WaitWhileNVMBusBusy(void)
{
uint8_t AttemptsRemaining = 255;
/* Poll the STATUS register to check to see if NVM access has been enabled */
while (AttemptsRemaining--)
{
PDITarget_SendByte(PDI_CMD_LDCS | PDI_STATUS_REG);
if (PDITarget_ReceiveByte() & PDI_STATUS_NVM)
return true;
}
return false;
}
void PDITarget_WaitWhileNVMControllerBusy(void)
{
/* Poll the NVM STATUS register to check to see if NVM controller is busy */
for (;;)
{
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_1BYTE << 2));
PDITarget_SendAddress(DATAMEM_BASE | DATAMEM_NVM_STATUS);
if (!(PDITarget_ReceiveByte() & (1 << 7)))
return;
}
}
#endif