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Add first draft of the TPI NVM commands for reading, writing and erasing a target. Needs testing when physical access to a part is available.

Browse Source
pull/1469/head
Dean Camera 15 years ago
parent 3222f21b84
commit 7c8f4a716f
7 changed files with 120 additions and 38 deletions
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88
Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
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@ -39,6 +39,16 @@
#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
#warning TPI Protocol support is currently incomplete and is not suitable for general use.
/** Sends the given pointer address to the target's TPI pointer register */
void TINYNVM_SendPointerAddress(const uint16_t AbsoluteAddress)
{
/* Send the given 16-bit address to the target, LSB first */
XPROGTarget_SendByte(TPI_CMD_SSTPR | 0);
XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[0]);
XPROGTarget_SendByte(TPI_CMD_SSTPR | 1);
XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[1]);
}
/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.
*
* \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
@ -57,17 +67,52 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
return false;
}
/** Waits while the target's NVM controller is busy performing an operation, exiting if the
* timeout period expires.
*
* \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
*/
bool TINYNVM_WaitWhileNVMControllerBusy(void)
{
/* Poll the STATUS register to check to see if NVM access has been enabled */
while (TimeoutMSRemaining)
{
/* Send the SIN command to read the TPI STATUS register to see the NVM bus is active */
XPROGTarget_SendByte(TPI_CMD_SIN | XPROG_Param_NVMCSRRegAddr);
if (XPROGTarget_ReceiveByte() & (1 << 7))
return true;
}
return false;
}
/** Reads memory from the target's memory spaces.
*
* \param[in] ReadAddress Start address to read from within the target's address space
* \param[out] ReadBuffer Buffer to store read data into
* \param[in] ReadSize Number of bytes to read
* \param[in] ReadSize Length of the data to read from the device
*
* \return Boolean true if the command sequence complete successfully
*/
bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const uint16_t ReadSize)
bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize)
{
// TODO
/* Wait until the NVM controller is no longer busy */
if (!(TINYNVM_WaitWhileNVMControllerBusy()))
return false;
/* Set the NVM control register to the NO OP command for memory reading */
XPROGTarget_SendByte(TPI_CMD_SOUT | XPROG_Param_NVMCMDRegAddr);
XPROGTarget_SendByte(TINY_NVM_CMD_NOOP);
/* Send the address of the location to read from */
TINYNVM_SendPointerAddress(ReadAddress);
while (ReadSize--)
{
/* Read the byte of data from the target */
XPROGTarget_SendByte(TPI_CMD_SLD | TPI_POINTER_INDIRECT_PI);
*(ReadBuffer++) = XPROGTarget_ReceiveByte();
}
return true;
}
@ -78,25 +123,46 @@ bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const u
* \param[in] WriteAddress Start address to write to within the target's address space
* \param[in] WriteBuffer Buffer to source data from
*
*
* \return Boolean true if the command sequence complete successfully
*/
bool TINYNVM_WriteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)
bool TINYNVM_WriteMemory(const uint32_t WriteAddress, const uint8_t Byte)
{
// TODO
/* Wait until the NVM controller is no longer busy */
if (!(TINYNVM_WaitWhileNVMControllerBusy()))
return false;
/* Set the NVM control register to the WORD WRITE command for memory reading */
XPROGTarget_SendByte(TPI_CMD_SOUT | XPROG_Param_NVMCMDRegAddr);
XPROGTarget_SendByte(TINY_NVM_CMD_WORDWRITE);
/* Send the address of the location to write to */
TINYNVM_SendPointerAddress(WriteAddress);
/* Write the byte of data to the target */
XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT);
XPROGTarget_SendByte(Byte);
return true;
}
/** Erases a specific memory space of the target.
*
* \param[in] EraseCommand NVM erase command to send to the device
* \param[in] Address Address inside the memory space to erase
/** Erases the target's memory space.
*
* \return Boolean true if the command sequence complete successfully
*/
bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint32_t Address)
bool TINYNVM_EraseMemory(void)
{
// TODO
/* Wait until the NVM controller is no longer busy */
if (!(TINYNVM_WaitWhileNVMControllerBusy()))
return false;
/* Set the NVM control register to the CHIP ERASE command to erase the target */
XPROGTarget_SendByte(TPI_CMD_SOUT | XPROG_Param_NVMCMDRegAddr);
XPROGTarget_SendByte(TINY_NVM_CMD_CHIPERASE);
/* Wait until the NVM bus is ready again */
if (!(TINYNVM_WaitWhileNVMBusBusy()))
return false;
return true;
}

10
Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.h
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@ -56,18 +56,16 @@
#endif
/* Defines: */
#define TINY_NVM_REG_NVMCSR 0x32
#define TINY_NVM_REG_NVMCMD 0x33
#define TINY_NVM_CMD_NOOP 0x00
#define TINY_NVM_CMD_CHIPERASE 0x10
#define TINY_NVM_CMD_SECTIONERASE 0x14
#define TINY_NVM_CMD_WORDWRITE 0x1D
/* Function Prototypes: */
void TINYNVM_SendPointerAddress(const uint16_t AbsoluteAddress);
bool TINYNVM_WaitWhileNVMBusBusy(void);
bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const uint16_t ReadSize);
bool TINYNVM_WriteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer);
bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint32_t Address);
bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadLength);
bool TINYNVM_WriteMemory(const uint32_t WriteAddress, const uint8_t Byte);
bool TINYNVM_EraseMemory(void);
#endif

8
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
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@ -196,12 +196,12 @@ bool XMEGANVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16
/** Writes byte addressed memory to the target's memory spaces.
*
* \param[in] WriteCommand Command to send to the device to write each memory byte
* \param[in] WriteAddress Start address to write to within the target's address space
* \param[in] WriteBuffer Buffer to source data from
* \param[in] WriteAddress Address to write to within the target's address space
* \param[in] Byte Byte to write to the target
*
* \return Boolean true if the command sequence complete successfully
*/
bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)
bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t Byte)
{
/* Wait until the NVM controller is no longer busy */
if (!(XMEGANVM_WaitWhileNVMControllerBusy()))
@ -215,7 +215,7 @@ bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAd
/* Send new memory byte to the memory to the target */
XPROGTarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
XMEGANVM_SendAddress(WriteAddress);
XPROGTarget_SendByte(*(WriteBuffer++));
XPROGTarget_SendByte(Byte);
return true;
}

2
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.h
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@ -110,7 +110,7 @@
bool XMEGANVM_WaitWhileNVMControllerBusy(void);
bool XMEGANVM_GetMemoryCRC(const uint8_t CRCCommand, uint32_t* const CRCDest);
bool XMEGANVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize);
bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer);
bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t Byte);
bool XMEGANVM_WritePageMemory(const uint8_t WriteBuffCommand, const uint8_t EraseBuffCommand,
const uint8_t WritePageCommand, const uint8_t PageMode, const uint32_t WriteAddress,
const uint8_t* WriteBuffer, uint16_t WriteSize);

41
Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
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@ -37,11 +37,17 @@
#include "XPROGProtocol.h"
#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
/** Base absolute address for the target's NVM controller */
/** Base absolute address for the target's NVM controller for PDI programming */
uint32_t XPROG_Param_NVMBase = 0x010001C0;
/** Size in bytes of the target's EEPROM page */
uint32_t XPROG_Param_EEPageSize;
uint16_t XPROG_Param_EEPageSize;
/** Address of the TPI device's NVMCMD register for TPI programming */
uint8_t XPROG_Param_NVMCMDRegAddr;
/** Address of the TPI device's NVMCSR register for TPI programming */
uint8_t XPROG_Param_NVMCSRRegAddr;
/** Currently selected XPROG programming protocol */
uint8_t XPROG_SelectedProtocol = XPRG_PROTOCOL_PDI;
@ -222,7 +228,9 @@ static void XPROGProtocol_Erase(void)
}
else
{
// TODO
/* Erase the target memory, indicate timeout if ocurred */
if (!(TINYNVM_EraseMemory()))
ReturnStatus = XPRG_ERR_TIMEOUT;
}
Endpoint_Write_Byte(CMD_XPROG);
@ -294,18 +302,20 @@ static void XPROGProtocol_WriteMemory(void)
}
/* Send the appropriate memory write commands to the device, indicate timeout if occurred */
if ((PagedMemory && !XMEGANVM_WritePageMemory(WriteBuffCommand, EraseBuffCommand, WriteCommand,
if ((PagedMemory && !(XMEGANVM_WritePageMemory(WriteBuffCommand, EraseBuffCommand, WriteCommand,
WriteMemory_XPROG_Params.PageMode, WriteMemory_XPROG_Params.Address,
WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length)) ||
(!PagedMemory && !XMEGANVM_WriteByteMemory(WriteCommand, WriteMemory_XPROG_Params.Address,
WriteMemory_XPROG_Params.ProgData)))
WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length))) ||
(!PagedMemory && !(XMEGANVM_WriteByteMemory(WriteCommand, WriteMemory_XPROG_Params.Address,
WriteMemory_XPROG_Params.ProgData[0]))))
{
ReturnStatus = XPRG_ERR_TIMEOUT;
}
}
else
{
// TODO
/* Send write command to the TPI device, indicate timeout if occurred */
if (!(TINYNVM_WriteMemory(WriteMemory_XPROG_Params.Address, WriteMemory_XPROG_Params.ProgData[0])))
ReturnStatus = XPRG_ERR_TIMEOUT;
}
Endpoint_Write_Byte(CMD_XPROG);
@ -339,13 +349,15 @@ static void XPROGProtocol_ReadMemory(void)
if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
{
/* Read the target's memory, indicate timeout if occurred */
/* Read the PDI target's memory, indicate timeout if occurred */
if (!(XMEGANVM_ReadMemory(ReadMemory_XPROG_Params.Address, ReadBuffer, ReadMemory_XPROG_Params.Length)))
ReturnStatus = XPRG_ERR_TIMEOUT;
}
else
{
// TODO
/* Read the TPI target's memory, indicate timeout if occurred */
if (!(TINYNVM_ReadMemory(ReadMemory_XPROG_Params.Address, ReadBuffer, ReadMemory_XPROG_Params.Length)))
ReturnStatus = XPRG_ERR_TIMEOUT;
}
Endpoint_Write_Byte(CMD_XPROG);
@ -428,9 +440,12 @@ static void XPROGProtocol_SetParam(void)
case XPRG_PARAM_EEPPAGESIZE:
XPROG_Param_EEPageSize = Endpoint_Read_Word_BE();
break;
case XPRG_PARAM_UNDOC_1:
case XPRG_PARAM_UNDOC_2:
break; // Undocumented TPI parameter, just accept and discard
case XPRG_PARAM_NVMCMD:
XPROG_Param_NVMCMDRegAddr = Endpoint_Read_Byte();
break;
case XPRG_PARAM_NVMCSR:
XPROG_Param_NVMCSRRegAddr = Endpoint_Read_Byte();
break;
default:
ReturnStatus = XPRG_ERR_FAILED;
break;

7
Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.h
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@ -97,8 +97,8 @@
#define XPRG_PARAM_NVMBASE 0x01
#define XPRG_PARAM_EEPPAGESIZE 0x02
#define XPRG_PARAM_UNDOC_1 0x03
#define XPRG_PARAM_UNDOC_2 0x04
#define XPRG_PARAM_NVMCMD 0x03
#define XPRG_PARAM_NVMCSR 0x04
#define XPRG_PROTOCOL_PDI 0x00
#define XPRG_PROTOCOL_JTAG 0x01
@ -109,6 +109,9 @@
/* External Variables: */
extern uint32_t XPROG_Param_NVMBase;
extern uint16_t XPROG_Param_EEPageSize;
extern uint8_t XPROG_Param_NVMCSRRegAddr;
extern uint8_t XPROG_Param_NVMCMDRegAddr;
/* Function Prototypes: */
void XPROGProtocol_SetMode(void);

2
Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h
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@ -99,8 +99,8 @@
#define PDI_CTRL_REG 2
#define PDI_STATUS_NVM (1 << 1)
#define PDI_RESET_KEY 0x59
#define PDI_RESET_KEY 0x59
#define PDI_NVMENABLE_KEY (uint8_t[]){0x12, 0x89, 0xAB, 0x45, 0xCD, 0xD8, 0x88, 0xFF}
#define PDI_DATSIZE_1BYTE 0

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